Exciting engineering challenges with great prizes

Show off your skills and solve real design problems

The Parcel Delivery System Challenge

Medium

This Challenge invites you to design a mechanical drawer solution for a self-service parcel terminal.

What is a self-service parcel terminal

A self-service parcel terminal is a locker-like device that allows people to quickly and easily send and receive small packages. Using a touch-screen and a series of automated drawers, users need only open a locked drawer to pick up or mail their packages. With more and more consumers ordering products online, these terminals, conveniently placed in public locations like shopping malls, will save people countless trips to post offices and other delivery centers.

The problem

Unfortunately, some people unknowingly put packages into the drawers that are too large and thus prevent the drawers from operating properly. The drawer can become stuck and ultimately can damage the package along with the terminal.

Short video showing current solution: https://www.youtube.com/watch?v=SSqNaRAqOWM

Drawbacks of the current solution:
1) It allows oversized or expanding packages, that initially fit in the drawer, to be inserted.
2) Upon inserting an oversized package, the drawer does not open or does not open enough to fetch the parcel.
3) Upon inserting an oversized package, the adjacent drawers (above/below) get stuck and they do not open either.

About this Challenge

The objective of this Challenge is to create a drawer solution for the terminal that includes a locking system and guarantees 100% functionality of the system. The terminal, complete with the 4 required drawers (and their measurements), can be downloaded here as a STEP model.

Your solution must also meet the following requirements:
- The structure of the drawer must allow simple and fast production from widespread materials (e.g. sheet metal, plastic etc). It must allow simple assembly, installation and replacement of the drawers.
- With a usage frequency of 2-3 times per day, it must be possible to give the drawer solution an 8-year guarantee, and an average lifetime of 10 years.
- The weight of the drawer solution should not exceed 5 kg per slot.
- All parts of the drawer and its system must be replaceable from the front without moving the terminal.
- Any oversized parcel that is inserted into the drawer must not stop the adjacent (above/below) drawers from opening.
- The drawer must be able to open to its maximum and cannot sag due to the weight of the inserted parcel (up to 5kg).
- There must be no protruding parts or sharp corners inside the drawer that would cause the parcel to get stuck while opening the drawer.
- The drawer must not open by a handle or latch.
- The amount of power needed to be applied to close the drawer must be as little as possible so that different users can push it closed (children, the elderly, etc.).
- The drawer should close smoothly and quietly.
- Third persons must not be able to remove the drawer from the terminal, nor gain access to the adjacent (above/below) drawers or the items held in them.
- The locking system of the drawer solution must be electronic with the electrical characteristics of 24VDC and maximum 1A. The length of the signal should be 200-300 ms. Molex Micro Fit 3.0 series connector must be used for connecting the lock.
- Added Jan 16: A new lock or locking system must include electrical feedback switch from slot or/and lock position.

DEADLINE OF THIS CHALLENGE EXTENDED TO FEBRUARY 16, 2015.

Requirements

  • Your entry must include:
    - STEP or IGES version
    - Rendering of your design

  • Winning designs will:
    1. Allow the drawer to open at least 30 mm, even if an oversized/expanding package is inserted.
    2. Maximize the size of package that can be inserted without jamming the drawer.
    3. Guarantee the safety of the contents of the drawer(s).
    4. Minimize the cost of the drawer solution in quantities of 1/100/1000 pcs.
    5. Allow easy and fast production and assembly.
    6. Make use of widespread materials.
    7. Prevent the drawer from damaging itself in the case of misuse.
    8. Have a drawer load bearing capacity of at least 5kg (∽11 lb).

Download specification

Rules

  • ENTERING THE COMPETITION
    The Challenge is open to everyone except employees and families of GrabCAD and the Sponsor. Multiple entries are welcome. Team entries are welcome.

    By entering the Challenge you:
    1. Accept the official GrabCAD Challenges Terms & Conditions.
    2. Agree to be bound by the decisions of the judges (Jury).
    3. Warrant that you are eligible to participate.
    4. Warrant that the submission is your original work.
    5. Warrant, to the best of your knowledge, your work is not, and has not been in production or otherwise previously published or exhibited.
    6. Warrant neither the work nor its use infringes the intellectual property rights (whether a patent, utility model, functional design right, aesthetic design right, trademark, copyright or any other intellectual property right) of any other person.
    7. Warrant participation shall not constitute employment, assignment or offer of employment or assignment.
    8. Are not entitled to any compensation or reimbursement for any costs.
    9. Agree the Sponsor and GrabCAD have the right to promote all entries.

    If you think an entry may infringe on existing copyrighted materials, please email challenges@grabcad.com

  • SUBMITTING AN ENTRY
    Only entries uploaded to GrabCAD through the "Submit entry" button on this Challenge page will be considered an entry. Only public entries are eligible.

    We encourage teams to use GrabCAD Workbench for developing their entries.

    Entries are automatically given the tag "cleveron" when uploading to GrabCAD. Please do not edit or delete this tag. Only entries with valid tag will participate in the Challenge.

  • AWARDING THE WINNERS
    The sum of the Awards is the total gross amount of the reward. The awarded participant is solely liable for the payment of all taxes, duties and other similar measures if imposed on the reward pursuant to the legislation of the country of his/her residence, domicile, citizenship, workplace, or any other criterion of similar nature. Only 1 award per person. Prizes may not be transferred or exchanged.

    All winners will be contacted by the GrabCAD staff to get their contact information and any other information needed to get the prize to them. Payment of cash awards is made through PayPal. All team awards will be transferred to the member who entered the Challenge.

    We will release the finalists before the announcement of the winners to give the Community an opportunity to share their favorites in the comments, discuss concerns, and allow time for any testing or analysis by the Jury. The Jury will take the feedback into consideration when picking the winners.

    Winning designs will be chosen based on the Rules and Requirements.

  • EXTENDED 1 WEEK! This Challenge ends on February 16, 2015 (23:59pm UTC).

    Winners will be announced by March 16, 2015.

  • Void where prohibited.

Prizes

$7,500 total prize pool

1st Place

$3,000

2nd Place

$2,000

3rd Place

$1,000

4th - 6th Place

$500

About Cleveron

The mission of Cleveron is to make sending and reception of parcels as fast, convenient and cost effective as possible by offering the modern technology based solutions.

www.cleveron.eu

101 comments

  • Ardo

    Ardo almost 3 years ago

    Why use locked drawer when working solution is locked door and fixed shelf.

    Ardo has uploaded 16 CAD models & has left 6 comments.
  • Nadre Davani

    Nadre Davani almost 3 years ago

    The fitting of the package is not the issue here, retrieval of items from upper drawers is the problem. Based on what I see the parcel needs to be sorted and then inserted in the lower pick up area, this involves a conveyor mechanism, Further more division of the packages to small, medium, large / weight etc. Additional software driven sensor and sorting system (not a complex task for programmers) is crucial.
    Essentially there will only be few lower pick up area and not individual drawers.
    I will provide more ideas on this system upon feedback from the community.
    I am not interested in the prize money but to create a possible alternative direction for others to use to take the idea to final.

    Nadre Davani has uploaded 0 CAD models & has left 2 comments.
  • Arthur Loginow

    Arthur Loginow almost 3 years ago

    I don't really see the point of doing this other than thinking, as Ardo said the solution is to use doors instead of drawers, and they already have models like that. The only advantage of a drawer over a door is the organization (as far as I can think right now) and they don't need it because they are working with packages. I would like to read any other advantages that anyone can think of.

    Arthur Loginow has uploaded 0 CAD models & has left 1 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    Main reason for using drawer solution is to offer smaller slots. The problem is that if you make a similar low slot with regular door, your hand simply will not fit into it to reach the parcel, specially when courier has punched it deep inside the slot.

    At the same time remarkable amount of parcels going through these terminals are not bigger than a book or CD. Smaller slots / drawers will make the parcel terminals much more efficient.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Leandro Fernandes

    Leandro Fernandes almost 3 years ago

    Hi! This sounds like an interesting and fairly rewarding challenge. However I'm really ignorant and I've never seen in real life a system like this before. So I have a few questions:

    1) can the package be inserted into the drawer from the back side (automatically by the terminal) or it can only be inserted by the front side?

    2) if the drawer is to be mounted from the front what prevents a thief from, well, stealing the drawer?

    3) when the drawer is half open and a user inserts his hand (lets assume there's enough space for it) inside the drawer and tries to touch the top surface that resides above the drawer (when it's closed) will the user touch a horizontal partitioning wall of the terminal or the bottom surface of the drawer above the current one?

    4) is there a soft closing device in the terminal or should it be installed in the drawer?

    5) should the participant select or design the locking system or is the locking system already defined?

    6) everything sags! It's just a question about what maximum sag/displacement is acceptable?

    7) what type of misuse are you referring to, that the drawer should withstand?

    8) what does it mean to "guarantee the safety of the contents of the drawer"? Isn't the terminal a static device, in which case the condition of the packages upon insertion will be the same as the condition upon retrieval? Or is it a guideline to tell the participants that if the drawer is opened/closed too fast it can damage the goods?

    9) should the frontal face of the drawer make an air-tight seal against the face frame of the terminal?

    Leandro Fernandes has uploaded 11 CAD models & has left 20 comments.
  • Steve Wegener

    Steve Wegener almost 3 years ago

    I was just to lazy to ask for it, so I just skipped this challenge in my head. But Leandro just asked the questions, that firstly came into my head. No more need to say something as I fully approve to Ardo, Nadre and Arthur.

    Steve Wegener has uploaded 7 CAD models & has left 188 comments.
  • Kamen Rusev

    Kamen Rusev almost 3 years ago

    Everybody, do your own concept for the challenge. You don't have to follow all the "rules" ...you may end up with better idea. The current one is straight forward...nothing innovative.

    Kamen Rusev has uploaded 51 CAD models & has left 260 comments.
  • Ian Sayers

    Ian Sayers almost 3 years ago

    what is the heaviest package they'll accommodate? Should the drawer have a furniture grade drawer slider or a high load industrial grade one?

    regarding fasteners, sliders, and other standard components, is there a preference for either metric or imperial standards?

    Any extra points for a secure ground fastening system?

    Ian Sayers has uploaded 46 CAD models & has left 43 comments.
  • Ian Sayers

    Ian Sayers almost 3 years ago

    do you have a specific gauge of sheet metal and frame stock in mind for the drawers and the main chassis? Does it need to be waterproofed against weather and vandalism?

    Ian Sayers has uploaded 46 CAD models & has left 43 comments.
  • Ardo

    Ardo almost 3 years ago

    To offer smaller slots I would use fixed shelf and mechanically movable rear side.

    Ardo has uploaded 16 CAD models & has left 6 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    Answers to Leonardo´s questions:
    1) Packages can only be inserted from the front side. Parcel terminals usually stand with its back side next to a wall.
    2) This is a problem to solve in your designs. Currently screws are unreachable when drawers are locked.
    3) We have tried both solutions in our prototypes. It is up to you, which solution fits better with your design and solves the problems better.
    4) There is no specific soft closing device you have to use. You can choose or create your own, if you need one in your design.
    5) Locking system is not defined. Follow the guidelines given in challange description.
    6) In acceptable design sagging doesn,t affect the drawers work. Drawer must open and close easily with 5kg parcel in it.
    7) People are creative in misusing things so it is difficult to write down all the possible cases. Most common situations are trying to press too large package into the drawer or just closing it with smash.
    8) It´means that drawer or some other parts may not damage the parcel and the drawer together with locking solution should offer some reasonable protection against theft.
    9) No, it doesn´t have to be air-tight.

    Answers to Ian:
    1) Drawers must work perfectly with parcels up to 5kg. Components must match the expected usage frequency and lifetime given in challange description.
    2) Metric system is preferred
    3) Solution doesn´t have to be waterproof but being weatherproof and vandalism resistant is an advantage.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Steve Wegener

    Steve Wegener almost 3 years ago

    Hi Lauri,
    thank you for answering the questions. But there are some more basic problems. You already have your own straight concept of organization and that kills any creative area of freedom. And with such tough rules that more look like instructions, this whole work is maybe better done by commissional work. Some people will still upload their concepts anyway, but that wont fit your imaginings. Please don't misunderstand me, I wish you good luck for your parcel system anyway! (Sorry for my english)

    Steve Wegener has uploaded 7 CAD models & has left 188 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    I agree that there are some things you have to keep in mind but those rules were more to describe what we already have and what standard our clients expect from Cleveron´s products. But if there are any new ideas how to improve the drawers or some creative ways to solve some problems or even change the whole concept, you are welcome to participate with it.

    Sorry Leandro for misspelling your name in my previous comment.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Abhijeet Das

    Abhijeet Das almost 3 years ago

    Can I design something better, will try to make it as economical & useful as possible or I have to be constrained to guidelines mentioned by you? Also how many drawers it should have in a single terminal?

    Abhijeet Das has uploaded 23 CAD models & has left 254 comments.
  • RF_Design

    RF_Design almost 3 years ago

    Hi, most electronic lock catalogs I'm searching don't say anything about the "length of the signal", or anything with the unit "ms". Can someone please explain this specification?

    RF_Design has uploaded 48 CAD models & has left 171 comments.
  • Leandro Fernandes

    Leandro Fernandes almost 3 years ago

    Lauri Hirvesaar,
    1) I didn't ask if there was a specific soft closing device we should use. I asked if that device was mounted on the terminal or on the drawer.
    2) "3) We have tried both solutions in our prototypes. It is up to you, which solution fits better with your design and solves the problems better. " -> does this means that we can suggest the terminal should have horizontal partitioning walls between drawers?
    3) what type of drawer slides are currently used?

    Btw, yeah it's really bad that you can't afford to spend 2 seconds to confirm the name of the person you're responding to. It makes you wonder how much effort has been put into this parcel delivery system..

    Leandro Fernandes has uploaded 11 CAD models & has left 20 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    Answer to Abhijeet Das:
    Jury evaluates your designs by the criterias mentioned in the challange description. If your design has some really creative solutions in many criterias but also some minor shortages in others, the overall result may still be good.
    Parcel terminals are modular and number of columns or number of drawers in one column varies. Set with at least 4 drawers is required, please check the step model for dimensions.
    Answer to Leandro Fernandes:
    1) There is no soft closing device mounted in the terminal which must be considered. If your design needs one, please add it to your solution.
    2) Yes, you can suggest it. Designs can be different, some may need partitioning walls, some not. Choose what fits best with your design.
    3) Current solution has custom made bended sheetmetal slides, similar to most common furniture drawer slides.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Sara Sigel

    Sara Sigel almost 3 years ago

    @Leandro Fernandes Typos happen to the best of us :P I'll do a round-up of all this information and add it to the Challenge description and Requirements where needed. Thanks for hopping in and answering questions so thoroughly @Lauri Hirvesaar. I think we'll get some great ideas going once we do some more fact finding!

    Sara Sigel has uploaded 1 CAD models & has left 1898 comments.
  • Abhijeet Das

    Abhijeet Das almost 3 years ago

    It is mentioned that "The specification and requirements of this Challenge will be updated by January 16 based on the questions and feedback." So my question is should we start our work or should we wait till 16th and share our views till then?

    Abhijeet Das has uploaded 23 CAD models & has left 254 comments.
  • Abhijeet Das

    Abhijeet Das almost 3 years ago

    One more question, do we need to design a whole different way of parcel delivery system or should we just find the solution to the problems you mentioned above and make some more upgrades too?

    Abhijeet Das has uploaded 23 CAD models & has left 254 comments.
  • Cecil Van Der Merwe

    Cecil Van Der Merwe almost 3 years ago

    I'm trying to download the specifications, I'm getting this (ISO-10303-21;
    HEADER;
    /* Generated by software containing ST-Developer
    * from STEP Tools, Inc. (www.steptools.com)
    */

    FILE_DESCRIPTION(
    /* description */ (''),
    /* implementation_level */ '2;1');) doesn't make sense to me. Do I need special software to open this?

    Cecil Van Der Merwe has uploaded 19 CAD models & has left 30 comments.
  • Abhijeet Das

    Abhijeet Das almost 3 years ago

    @cecil:- It's quite simple, just open you CAD software>then click open>go to the folder where you downloaded the .STEP file>Click the file and open it>then your CAD soft. will process the file and shows the CAD part.

    Abhijeet Das has uploaded 23 CAD models & has left 254 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    to RF_Design:
    Length of the signal is actually not very important criteria in choosing lock as most of the locks open right at the same moment when the signal comes. But you can consider it if you can get this information about your lock. Our controllers send the signal just during this short period of time given as "signal length" and lock has to be able to open within this time.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • RF_Design

    RF_Design almost 3 years ago

    Ok, thank you @Lauri Hirvesaar.

    RF_Design has uploaded 48 CAD models & has left 171 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    to Abhijeet Das:
    In this challange we expect drawer solution designs that meet the criterias written in challange description. Also we have to follow these points while evaluating the designs. If you have solutions in mind, that may be useful or improve the whole concept, you can of course present them but evaluation criterias will still be the same.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Jonathan

    Jonathan almost 3 years ago

    I have a really revolutionary idea....and I'm not sure if its been done before.....ok here goes...

    A human being brings you the package at your door step.....you sign a paper or pay them for said package, ask them how the weather is outside and wish them on there way...

    yes. yes. I know. it's out there but I think we can make it happen.

    Jonathan has uploaded 197 CAD models & has left 2144 comments.
  • siemon janssen

    siemon janssen almost 3 years ago

    @Jonathan :)
    That only benefits people who sit all day at home no job.

    siemon janssen has uploaded 0 CAD models & has left 2 comments.
  • Steve Wegener

    Steve Wegener almost 3 years ago

    @Jonathan
    There are still too much resources in this earth we can waste, instead of using this stupid solution
    ..
    :)

    Steve Wegener has uploaded 7 CAD models & has left 188 comments.
  • paultahar

    paultahar almost 3 years ago

    production cost limit for each drawer?

    paultahar has uploaded 0 CAD models & has left 25 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    To keep the cost comparable to the current solution, it should not exceed EUR 45 / pc in serial production. (e.g in series of 1000 pc at a time.) It is not certain limit, however, the better price is always an advantage.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    Clarification: This price includes drawer materials and a lock

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Abhijeet Das

    Abhijeet Das almost 3 years ago

    @Lauri Hirvesaar - Thanks for reply!

    Abhijeet Das has uploaded 23 CAD models & has left 254 comments.
  • Erik Janssen

    Erik Janssen almost 3 years ago

    @Steve Wegener: not reproduce works much better for saving the earth.

    Erik Janssen has uploaded 0 CAD models & has left 8 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    Thank you for the first entries to this challange! I draw attention to the fact that, first and foremost, we expect innovative drawer solutions in this challange. The whole parcel terminal design or concept should only be changed if it has a good drawer solution inside, that really needs this change.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Abhijeet Das

    Abhijeet Das almost 3 years ago

    Yeah sure!!

    Abhijeet Das has uploaded 23 CAD models & has left 254 comments.
  • Ridwan Septyawan

    Ridwan Septyawan almost 3 years ago

    Interesting challenges, want to join

    Ridwan Septyawan has uploaded 186 CAD models & has left 1751 comments.
  • Cadstorming

    Cadstorming almost 3 years ago

    How is decided in which drawer the parcel is inserted?

    Cadstorming has uploaded 38 CAD models & has left 100 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    To Cadstorming:
    Packages are pre-sorted and labelled by size, and the software opens a suitable size door or drawer from its free slots after parcel is scanned at the parcel terminal. This video may give an idea of how the filling process goes by courier: https://www.youtube.com/watch?v=qgQ0f-bTQ1o

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Jonathan

    Jonathan almost 3 years ago

    But, in this video, it seems like you have everything under control already....

    4. Minimize the cost of the drawer solution in quantities of 1/100/1000 pcs.
    5. Allow easy and fast production and assembly.
    6. Make use of widespread materials.

    What is wrong with the current version?

    Jonathan has uploaded 197 CAD models & has left 2144 comments.
  • Cadstorming

    Cadstorming almost 3 years ago

    Thanks for this quick reply Lauri. If the process is as explained, how does an oversized package end up in a drawer? I don't see where human error could happened except during the pre-sorting and labelling process???. Sorry to sound skeptical, no harm intended! I just want to better understand the requirements so I can push my design in the correct direction.

    Cadstorming has uploaded 38 CAD models & has left 100 comments.
  • Abhijeet Das

    Abhijeet Das almost 3 years ago

    This machine is meant to send and receive parcels so, We cant predict which size of parcel a customer gonna put inside the drawer. Yeah parcels from courier are sorted and also might be under size regulation.

    Abhijeet Das has uploaded 23 CAD models & has left 254 comments.
  • Shaun Stone

    Shaun Stone almost 3 years ago

    An oversized package can end up in a draw if someone measures a package incorrectly or try to send it as a smaller package for cheaper fees :)

    Shaun Stone has uploaded 5 CAD models & has left 18 comments.
  • Cadstorming

    Cadstorming almost 3 years ago

    Thanks Abhijeet and Shaun for the replies. So the problem mainly comes from "non-courier" parcels. Can I make the assumption that there is a prompt for the non-courier user (correct terminology?) to choose the drawer size for his package? If not what is the process then?

    Cadstorming has uploaded 38 CAD models & has left 100 comments.
  • Abhijeet Das

    Abhijeet Das almost 3 years ago

    @Shaun- That's why we need to design a drawer solution to prevent them, ( i too looked after it in my design) . BTW good point you raised!!

    Abhijeet Das has uploaded 23 CAD models & has left 254 comments.
  • Abhijeet Das

    Abhijeet Das almost 3 years ago

    @cadstorming- I dont know that!! only Lauri can answer that. But I guess there could be a prompt to choose the size range of the package. Then also this whole concept is cool and easy to use, +1 to cleveron!

    Abhijeet Das has uploaded 23 CAD models & has left 254 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    When private client sends parcel to another client, he or she can first measure the package with a ruler printed on the parcel terminal. Next step is to insert the destination details and to choose the suitable slot size from touchscreen. There are usually 4-5 size options (from XS to XL) with dimensions written next to button. If it turns out that the parcel doesn´t fit into chosen slot (e.g size M), user can cancel the inserting and choose larger slot (e.g size L). As the price depends on size, some people still tend to press too large parcels into small slots with force. This is one problem we sometimes have to face with. And the last step is the execution of payment.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Ridwan Septyawan

    Ridwan Septyawan almost 3 years ago

    1. "Allow the drawer to open at least 30 mm, even if an oversized/expanding package is inserted."

    Does this mean the drawers automatically open about 30 mm and then we pulled himself to open more ?

    If the drawer should open automatically as a whole , whether we are allowed to use stepper motors on each drawer ? Does not this make the production costs swell ?

    2. Are we allowed to use sensors?

    Ridwan Septyawan has uploaded 186 CAD models & has left 1751 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    To Ridwan:
    Yes, correct. Current solutions drawer opens enough to get fingers behind it and then it is manually pulled to fully open. You are allowed to use motors or sensors as you like, just follow the main points in challenge description. Also I suggest to think about safety issues when there will be motorized or fast moving parts in your solutions.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Ridwan Septyawan

    Ridwan Septyawan almost 3 years ago

    wow, thanks for fast response Lauri Hirvesaar

    Ridwan Septyawan has uploaded 186 CAD models & has left 1751 comments.
  • Just-in

    Just-in almost 3 years ago

    looks like a good challenge

    Just-in has uploaded 15 CAD models & has left 249 comments.
  • Allar Õunsaar

    Allar Õunsaar almost 3 years ago

    What kind of material is used to for terminal sidewalls and for shelf base/top parts? According to .step fail side wall is 16mm and parts between 8mm.

    Allar Õunsaar has uploaded 6 CAD models & has left 5 comments.
  • Valerie Yi Mei

    Valerie Yi Mei almost 3 years ago

    Hi are there any information on current locking system? I am keen on this challenge but I do not know much about locking systems.

    Valerie Yi Mei has uploaded 6 CAD models & has left 14 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    To Allar:
    This .step file is simplified model just to show the dimensions into which the drawers must fit in our current solution. Existing solutions sidewalls are made from laminated chipboard. Also we have tested a solution with sheetmetal plates between the drawers.
    To Valerie:
    You can find some general information about our door lock from challange description. Existing lock is a custom design, made specially for Cleverons parcel terminal doors. I suggest to design your own or find some OEM product that fits best with your drawer solution.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Rein Maekask

    Rein Maekask almost 3 years ago

    To Lauri:
    May I ask you what was the drawback of installing sheet metal plates between the drawers?

    Rein Maekask has uploaded 1 CAD models & has left 2 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    To Rein:
    Mostly just the cost of plates and installation time plus some extra effort on designing the plates. Current drawers with open top clearly work better with plates between the drawers.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Jonathan

    Jonathan almost 3 years ago

    This reminds me of the problem I have with my screw cabinets, try to pack them too tight and you're in for a fun time trying to get them open again... lol :)

    Jonathan has uploaded 197 CAD models & has left 2144 comments.
  • Jonathan

    Jonathan almost 3 years ago

    anyone want to team up with me for this one?

    Jonathan has uploaded 197 CAD models & has left 2144 comments.
  • Valerie Yi Mei

    Valerie Yi Mei almost 3 years ago

    Hi, is there a system to detect if no parcel has been placed in the drawers? I mean if the user picked a drawer that is smaller than his parcel, is he able to choose another larger drawer in the system?

    Valerie Yi Mei has uploaded 6 CAD models & has left 14 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    to Valerie: There is no automatic parcel detection system in current solution. If user sees that parcel doesn´t fit, he has to cancel the previous choice and pick a larger slot on terminals touchscreen.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Mohomed Nusry

    Mohomed Nusry almost 3 years ago

    I just wanted to know why you prefer drawers over door type lockers?
    Door type lockers design will solve many of your problems such as over sized parcels, disturbance to adjacent lockers, production cost, ease of manufacturing, high load capacity, etc...

    Mohomed Nusry has uploaded 23 CAD models & has left 76 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    To Mohomed: Please check my first comment here, I answered to the same question.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Mohomed Nusry

    Mohomed Nusry almost 3 years ago

    Sorry, I didn't notice it before. Yes, I got your point.

    "Main reason for using drawer solution is to offer smaller slots. The problem is that if you make a similar low slot with regular door, your hand simply will not fit into it to reach the parcel, specially when courier has punched it deep inside the slot."

    If a door type design combined with another mechanism is capable to overcome this problem, will it be accepted for the challenge?

    Mohomed Nusry has uploaded 23 CAD models & has left 76 comments.
  • Valerie Yi Mei

    Valerie Yi Mei almost 3 years ago

    Hi, Are we allowed to edit the dimensions of the drawer front plates in the STEP files provided?

    Valerie Yi Mei has uploaded 6 CAD models & has left 14 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    To Valerie: Try to keep the dimensions same as provided, otherwise it´s impossible to align the drawers with existing door sizes.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Jonathan

    Jonathan almost 3 years ago

    "- All parts of the drawer and its system must be replaceable from the front without moving the terminal. "

    "- Third persons must not be able to remove the drawer from the terminal, nor gain access to the adjacent (above/below) drawers or the items held in them. "

    Wouldn't this be impossible to do? the drawer will have exposed screws when open to allow for servicing, but they could be tampered with by people.

    Jonathan has uploaded 197 CAD models & has left 2144 comments.
  • Alberto Beretta

    Alberto Beretta almost 3 years ago

    jonathan,

    the solution is ... I invent a screw with a key attached to the drawer .... or we use the magic

    Alberto Beretta has uploaded 26 CAD models & has left 183 comments.
  • Jonathan

    Jonathan almost 3 years ago

    it's gotta be magic

    Jonathan has uploaded 197 CAD models & has left 2144 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    Thanks for the designs already entered! We just discussed them a bit with our development team and I can now give some general feedback here. Hopefully you’ll get some tips and ideas on how to fine-tune your work.

    Many of your solutions are using various drawers hatches. In some designs, it was not so clear how the hatch actually opens, closes and locks while in use (automatically or manually). Drawers should be able to be used with one hand since the courier or client is usually holding the parcel. Using the drawer shouldn´t take significantly more time or effort than current locker. I suggest to check this video of how a courier currently works with the parcel terminal. https://www.youtube.com/watch?v=qgQ0f-bTQ1o

    Another very important issue is the opening of the drawer. Some of the works presented only how the drawer slides in and out but these entries were yet missing the part that actually makes it move. Drawer has to open automatically at least 30mm before it can manually be fully opened, if needed. User doesn´t know which drawer will open and this 30mm opening is also critical to find the right drawer. The pushing force should match 30N.

    Speaking of safety - if you are using regular drawer slides, you should think about the additional „secret locking“ - solution that does not allow the drawers to be easily removed. It can also be central system for all the drawers. Like previously discussed here, it may look like magic, but actually there can be some simple mechanical solution – some flange or bar that blocks the drawers from being pulled out. Another solution would be that maybe you would need to open next drawer to reach the screws. A small hint is that the authorized technicians can also open all the other drawers / lockers plus the free space above the top locker and the ceiling plate (covered with aluminium slate on our current parcel terminals)

    Talking about some general topics, I recommend you not to put too much emphasis on designing high-tech parcel measurement system or similar, which would make the machine considerably more expensive. The current solution works well. The same story is with slot sizes - they are developed according to our clients requirements and parcel statistics. We wish you the best and success in this process!

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Abhijeet Das

    Abhijeet Das almost 3 years ago

    'Secret Locking' looks appealing and will think of something! thanks for sharing your views to us!

    Abhijeet Das has uploaded 23 CAD models & has left 254 comments.
  • John Harald Schjelderup

    John Harald Schjelderup almost 3 years ago

    Lauri, I just saw this challenge just now and I don't think I have enough spare time to propose a design. Just one tip to possibly make things a bit simpler for your company and the contestants. Instead of having the drawer open automatically 30 mm to indicate which drawer that is to be opened further manually by the user I would suggest having a manual handle for doing this and a simple green LED light to show which drawer that has become automatically unlocked. Or alternatively just a message on the screen saying "D-42" for instance. Just my two cents worth. Be weary of patents though since that would be very similar to systems used in automated train station storage lockers. Good luck - like the concept!

    John Harald Schjelderup has uploaded 2 CAD models & has left 14 comments.
  • Cadstorming

    Cadstorming almost 3 years ago

    Ha ha! Lauri, I love the way you pointed out one of the limitations of my design!

    Cadstorming has uploaded 38 CAD models & has left 100 comments.
  • Tommy Mueller

    Tommy Mueller almost 3 years ago

    I know it's a little early to suggest, but can the community get an extension for this challenge? My opinion is that we need more time producing the "mechanical" aspect of the drawer system and a few extra days to deliver the goods... thoughts?

    Tommy Mueller has uploaded 185 CAD models & has left 1714 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    Tommy, I agree that some extra days may be really useful. We have already thought about it and I´ll soon let you know what we can do.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • Valerie Yi Mei

    Valerie Yi Mei almost 3 years ago

    yes please do extend the competition's submission deadline if possible. would appreciate it :)

    Valerie Yi Mei has uploaded 6 CAD models & has left 14 comments.
  • Jonathan

    Jonathan almost 3 years ago

    stl files mandatory? seems like an odd format for something like this.

    Jonathan has uploaded 197 CAD models & has left 2144 comments.
  • #David

    #David almost 3 years ago

    I agree with Tommy as well. Doing so will benefit both the engineers/designers working on their designs, at the same time ensure you guys also get your moneys worth.

    #David has uploaded 32 CAD models & has left 343 comments.
  • Alberto Beretta

    Alberto Beretta almost 3 years ago

    increased competition time of ten days good move

    Alberto Beretta has uploaded 26 CAD models & has left 183 comments.
  • Philip LaRoach

    Philip LaRoach almost 3 years ago

    is this true, we've got more time? Thank you.

    Philip LaRoach has uploaded 29 CAD models & has left 122 comments.
  • A D Lekhi

    A D Lekhi almost 3 years ago

    Thank You

    A D Lekhi has uploaded 29 CAD models & has left 18 comments.
  • #David

    #David almost 3 years ago

    Cool, thanks!

    #David has uploaded 32 CAD models & has left 343 comments.
  • Sara Sigel

    Sara Sigel almost 3 years ago

    It's true! Based on your feedback, the Challenge is now extended to February 16th at 23:59 pm UTC, so you all have a chance to iterate after the feedback from Cleveron. Go forth and design!

    Sara Sigel has uploaded 1 CAD models & has left 1898 comments.
  • Robert Dietz

    Robert Dietz almost 3 years ago

    Hmm I dont see 5 winners within specs here ...maybe 2 or 3, does that mean 2 people will get $500 for just drawing a drawer?

    Robert Dietz has uploaded 6 CAD models & has left 38 comments.
  • Lauri Hirvesaar

    Lauri Hirvesaar almost 3 years ago

    Thank you all for your entries! It was a pleasant surprise to see almost 70 designs here in the end of the challange period.

    Lauri Hirvesaar has uploaded 0 CAD models & has left 52 comments.
  • #David

    #David almost 3 years ago

    Thanks for the extension brother...I really wanted to build this thing ; )

    #David has uploaded 32 CAD models & has left 343 comments.
  • Abhijeet Das

    Abhijeet Das almost 3 years ago

    Thank you Lauri for this great challenge!!

    Abhijeet Das has uploaded 23 CAD models & has left 254 comments.
  • Philip LaRoach

    Philip LaRoach almost 3 years ago

    The extra time definitely helped a ton, with work and family sometimes the biggest challenge is finding time to complete an entry.

    Philip LaRoach has uploaded 29 CAD models & has left 122 comments.
  • Stefan Gales

    Stefan Gales almost 3 years ago

    After 48 hours of work, my PC was able to finish the the explicative animation.
    Good luck to everyone !

    Stefan Gales has uploaded 74 CAD models & has left 161 comments.
  • #David

    #David almost 3 years ago

    @Stefan, I think it's time for an upgrade ; )

    #David has uploaded 32 CAD models & has left 343 comments.
  • Stefan Gales

    Stefan Gales almost 3 years ago

    I already upgraded, for several hours he sat in the snow to cool down :)

    Stefan Gales has uploaded 74 CAD models & has left 161 comments.
  • Sara Sigel

    Sara Sigel over 2 years ago

    Finalists are announced!
    http://grabcad.com/challenges/the-parcel-delivery-system-challenge/results
    .
    Thanks to everyone who participated! There were so many unique solutions for this tough, mechanical challenge. We believe these finalists are the best solutions. Next we'll be taking an in-depth look at all of the technical specifications and how each entrant performed in those areas. Which one is your favorite? Let us know in the comments!

    Sara Sigel has uploaded 1 CAD models & has left 1898 comments.
  • Jonathan

    Jonathan over 2 years ago

    great choices, will give feedback when I have time.

    Jonathan has uploaded 197 CAD models & has left 2144 comments.
  • Abhijeet Das

    Abhijeet Das over 2 years ago

    From now on no more challenges for me.. Worked really hard for this challenge...hoped for positive result! Anyways Congrats Winners!!

    Abhijeet Das has uploaded 23 CAD models & has left 254 comments.
  • Alberto Beretta

    Alberto Beretta over 2 years ago

    I had understood that it had to be an economic solution, instead I saw connecting rods, pulleys, gears, springs, sensors ...... qualc lacked only one who was planning a laser sensor and then there are all the possible technologies

    Alberto Beretta has uploaded 26 CAD models & has left 183 comments.
  • Philip LaRoach

    Philip LaRoach over 2 years ago

    Alberto the rules only asked for an electronic latch/lock, the rest of the solution could have been mechanical. electrical or a combination. Figuring out that balance was the fun part.

    Philip LaRoach has uploaded 29 CAD models & has left 122 comments.
  • Jonathan

    Jonathan over 2 years ago

    glanced over all the finalists, honestly can't really choose my favs...I would need to have a load more time to look into each design more carefully... but all seem like they have good mechanical design idea's.....best of luck to the finalists...

    Cleveron, could have made it easier on yourselves and just used a sensor! :P:P
    good luck making your choices!

    Jonathan has uploaded 197 CAD models & has left 2144 comments.
  • atas ring

    atas ring over 2 years ago

    This would be my choice for the winners:

    1: The Parcel Delivery System
    2: Keep It Simple Drawer
    3: 0127
    4: Cleveron's parcel terminal drawer concept
    5: https://grabcad.com/library/just-a-drawer-1
    6: Drawer solution
    7: SGCHL CLEVERON Parcel Delivery System
    8: Parcel Delivery System Challenge Entry

    But the jury has its own considerations and evaluation criterion. Good luck all.

    atas ring has uploaded 2 CAD models & has left 7 comments.
  • Ben Ewing

    Ben Ewing over 2 years ago

    Hi everyone. With the amazing quality of entries that we received for this challenge, the judges are having a tough time deciding the winners! Given this, we will be announcing the winners on Friday, March 20th rather than today. I hope you are all excited!

    Ben Ewing has uploaded 1 CAD models & has left 310 comments.
  • Ben Ewing

    Ben Ewing over 2 years ago

    We've just released the winners to The Parcel Delivery System Challenge: https://grabcad.com/challenges/the-parcel-delivery-system-challenge/results!

    Congratulations to all of the winners! We took an in-depth look at all 8 of the technical specifications and rated each entry on a scale from 1 to 10 based on how it performed in those areas. Thank you to all participants for making this challenge an exciting one!

    Ben Ewing has uploaded 1 CAD models & has left 310 comments.
  • Stefan Gales

    Stefan Gales over 2 years ago

    Thank You CLEVERON ! Thank You GRABCAD ! This is a great honor for me.

    Stefan Gales has uploaded 74 CAD models & has left 161 comments.
  • #David

    #David over 2 years ago

    Wow!!! Thanks Cleveron and Grabcad and congrats to all the winners! I'm a bit speechless, but can say that I'm definitely overwhelmed with appreciation and feel incredibly honored. You never really know how these things are gonna end up no matter what you do and I'm considerably grateful for how it turned out. This was a fun, interesting, and exciting challenge with the perfect amount of incentives in my opinion. Thanks again to Cleveron for giving us this opportunity to design and create. We all hope you've had a nice and satisfying experience here and do hope you can come back to give Grabcad more business and us more work. Cheers!

    #David has uploaded 32 CAD models & has left 343 comments.
  • Ridwan Septyawan

    Ridwan Septyawan over 2 years ago

    congrats to all winners

    Ridwan Septyawan has uploaded 186 CAD models & has left 1751 comments.
  • Please log in to add comments.

    Log in
We have updated our terms in order to better protect your hard work and keep our challenges running smoothly! To submit your challenge entry, please read and accept the new Challenge Terms and Conditions.

Save Cancel