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Airbus Challenge: Design a Water Pump for a Flying Product

Medium

The goal of this challenge is to design a water pump that fits the given requirements in order to be installed on one of our flying products.

The challenge concerns the availability of a quick acting electrical water pump without limitation linked to absence of specific lubrication.

Requirements

  • JUDGING CRITERIA:


      1) Does this submission meet technical and file submission requirements?


      2) Would this be cheaper to produce than other submissions?


      3) Does this weigh less than other submissions?


      4) Would this be more reliable than other submissions?
    ____________________________________________

  • SUBMISSION FILE FORMATS AND DELIVERABLES

    - 3D model (CAD files “.model” format).


    PLEASE INCLUDE TECHNICAL DESCRIPTION DOCUMENTS:


      - Description of the pump with rationale for design.
      - Bill of Material.
      - Compliance matrix to specification and explanations.
      - Cost.
      - Manufacturability.
    ____________________________________________

  • TECHNICAL REQUIREMENTS:

    Note: Before you submit, please check if you meet export control restrictions of your country, if any.
    __________________________________________
    Mechanics:
    - Capability to regulate a flow between 7 to 11 l/min.
    - Establish a stable flow (+/-5% to nominal).
    - Capability to establish flow, taking into account a counter pressure of 5 bar minimum (10 bar if possible. If 10 bar not reachable, maximal counter pressure to be provided).
    - Capability to sustain a blocked flow at exit.
    - If possible, self-priming capability.
    - Inlet and outlet internal diameter: between 6 and 10 mm.
    - Limitations related to installation/operation of the pump have to be provided.


    Power:
    - Power input is 28 V Direct Current.


    Weight:
    - Nominal weight ≤ 4 kg.


    General size:
    - Should be limited to 2l.


    Fluid:
    - Capability to be used with water.
    - If possible, capability to be used with glycol and iso-propanol additives up to 50% concentration.


    Control:
    - Capability to establish the flow in less than 0.2 sec.
    - Capability to regulate a set point sends through electrical command.
    - The setpoint will depend on atmospheric pressure and outside temperature.
    - The setpoint will be constant during the use of the pump.


    Environment:
    - Normal operating ambient temperature: from 0°C to 55°C.
    - To operate without restriction for Altitude/pressure: -2 000 ft to +10 000 ft.
    - Storage: No damage encountered in case of storage at low temperature (till below -10°C)


    Lifetime:
    - More than 10.000 cycles of 10 sec.
    - If the pump is not able to establish the flow in less than 0,2 sec, cycle duration becomes 10 min in continuous operation.


    Maintenance:
    - On-condition maintenance only.


    Storage:
    - No specific storage conditions.


    Regulations:
    - At least compliant with CS 29 amdt 3.


    Marking:
    - The marking will indicate
    - Manufacturer name
    - Manufacturing date
    - Manufacturer serial number or batch number
    - Customer serial number or batch number
    - Designation
    - Empty space for a casual amendment number/ derogation number
    - Checking hallmark
    - The indications shall be clear and indelible under environmental conditions specified.
    - Labeling material shall comply with environmental requirements.

Rules

  • ENTERING THE COMPETITION:


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


    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. Warrant, to the best of your knowledge, your work is not, and has not been in production or otherwise previously published or exhibited.
      5) 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.
      6) Warrant participation shall not constitute employment, assignment or offer of employment or assignment.
      7) Are not entitled to any compensation or reimbursement for any costs.
      8) Agree the Sponsor and GrabCAD have the right to promote all entries.


      AIRBUS CHALLENGE SPECIFIC ENTRY AGREEMENT:
      By submitting an Entry in the Airbus Challenge, each Entrant grants to Airbus (Sponsor) and its designees a worldwide, non-exclusive, sub-licensable, transferable, fully paid up, royalty-free, perpetual, irrevocable right to use, reproduce, distribute, create derivative works from, publically perform, publically display, digitally perform, make, have made, sell, offer for Sale and import the Entry and to develop or have developed the technology described in the Entry, in any media now known or hereafter developed for any purpose whatsoever, commercial or otherwise, without further approval by Entrant (“Non-Exclusive License”).

      If Entrant’s Entry is awarded a prize in the Airbus Challenge, Entrant agrees to and does hereby grant to Sponsor and its designees a worldwide, exclusive, sub-licensable, transferable, fully paid up, royalty-free, perpetual, irrevocable right to use, reproduce, distribute, create derivative works from, publically perform, publically display, digitally perform, make, have made, sell, offer for Sale and import the Entry and to develop or have developed the technology described in the Entry, in any media now known or hereafter developed for any purpose whatsoever, commercial or otherwise, without further approval by Entrant (“Exclusive License”).

      By submitting an Entry, Entrant represents that is has the right to grant these rights and the Exclusive License.

  • 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 "airbuswaterpump" 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.

  • Unlike previous challenges, we will only be announcing winners and will not be announcing finalists, so please make sure to share your 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.

  • This Challenge ends on June 24th, 2018 (24:00 EST.) The Finalists round will be skipped with this challenge. Winners will be announced July 2nd, 2018.

Prizes

Prize Winnings

$10,000 in Prizes!

1st Place

$6,000

2nd Place

$3,000

3rd Place

$1,000

About the jury?

Airbus

About Airbus

Airbus is an international pioneer in the aerospace industry. We are a leader in designing, manufacturing and delivering aerospace products, services and solutions to customers on a global scale. We aim for a better-connected, safer and more prosperous world.

63 comments

  • sayeem

    sayeem 4 months ago

    their any price for participation and what if i came 4th then their no price for me sir

    sayeem has uploaded 68 CAD models & has left 44 comments.
  • sayeem

    sayeem 4 months ago

    and what is type of water pump do you required

    sayeem has uploaded 68 CAD models & has left 44 comments.
  • MAB  ( Mehmet )

    MAB ( Mehmet ) 4 months ago

    you are mot paying 50 dollars how you will pay 6 000 dollars :)))))))))))))))))))

    MAB ( Mehmet ) has uploaded 3854 CAD models & has left 20779 comments.
  • geo

    geo 4 months ago

    I don‘t understand the problem. By patentoffice you found 1000 different, finished and tested pumps.
    Better, you never fly with my pump-design :-)

    geo has uploaded 12 CAD models & has left 495 comments.
  • Abe Gladstone

    Abe Gladstone 4 months ago

    Hi Sayeem,
    There are one prizes for 1st, 2nd, and 3rd place designs.

    Abe Gladstone has uploaded 0 CAD models & has left 18 comments.
  • Eric Albin

    Eric Albin 4 months ago

    @sayeem: Our system is a spray system (open loop system, not a close loop system) and the counter pressure depends on the downstream part of our system (design consequence). It’s mainly resulting from the pipes diameter downstream to the pump, with strong integration constraint.
    Anyway, considering our system, our goal is to regulate a constant water flow during about 10 min. Constant means that the setpoint will only depends on atmospheric pressure and outside temperature but will be constant during the use of the pump.

    Eric Albin has uploaded 0 CAD models & has left 4 comments.
  • Abe Gladstone

    Abe Gladstone 4 months ago

    @MAB( Mehmet) h 1st prize is $6,000, 2nd place is $3,000, and 3rd is $1,000. Once winners are selected the prizes are paid out via PayPal.

    Abe Gladstone has uploaded 0 CAD models & has left 18 comments.
  • Jagadish Raju

    Jagadish Raju 4 months ago

    @ Eric Albin: your system is for the fuel spray system or what? let me know about ur requirements please give us a brief description about your system

    Jagadish Raju has uploaded 21 CAD models & has left 17 comments.
  • Jagadish Raju

    Jagadish Raju 4 months ago

    or share some sample images of water pump system

    Jagadish Raju has uploaded 21 CAD models & has left 17 comments.
  • Fahad Rafi

    Fahad Rafi 4 months ago

    What you mean royalty free?

    Fahad Rafi has uploaded 241 CAD models & has left 438 comments.
  • Ananth Narayan

    Ananth Narayan 4 months ago

    @Eric Albin: What do you mean by the statement: To operate without restriction for Altitude/pressure: -2 000 ft to +10 000 ft. Whether the pressure of inlet and outlet at -2000 ft and 1000 ft. I need to understand this. Please elaborate. Any one can do this.

    Ananth Narayan has uploaded 32 CAD models & has left 95 comments.
  • CadCloud

    CadCloud 4 months ago

    I really dont understand the Competition, you know that there are so many water pumps out there that fit your requirements, its like trying to invent the wheel and say its your unique design. You would need a army of patent lawyers to scrutinise your design to see if its not been done before.and Airbus would never ever use a Aircraft part designed in a Forum. All I can say is good luck to members who attempt to do this competition.

    CadCloud has uploaded 163 CAD models & has left 433 comments.
  • CadCloud

    CadCloud 4 months ago

    Just did a quick search for 28 v water pump Ungefähr 140.000.000 Ergebnisse (0,29 Sekunden) so do I have to research them all to see if Iám not breaking any patent rights ?

    CadCloud has uploaded 163 CAD models & has left 433 comments.
  • Abe Gladstone

    Abe Gladstone 3 months ago

    @Fahad Rafi - This means that your payment for the submission would be the challenge winnings, there wouldn't be any future royalty payments on the design. Essentially saying that there will be a one time payment rather than numerous future payments.

    Abe Gladstone has uploaded 0 CAD models & has left 18 comments.
  • Eric Albin

    Eric Albin 3 months ago

    @jaga swavi: our system is not for the fuel, the aim is to send water in a powerplant system

    Eric Albin has uploaded 0 CAD models & has left 4 comments.
  • Chris Tziros

    Chris Tziros 3 months ago

    1} Do we need to also design the electric motor that powers the pump?
    2} Does Weight and Size restrictions refer to the pump itself or to the complete system pump+motor?
    *Weight: - Nominal weight ≤ 4 kg.
    *General size: - Should be limited to 2l.

    Chris Tziros has uploaded 10 CAD models & has left 32 comments.
  • Vlad Syrkin

    Vlad Syrkin 3 months ago

    Dear colleagues,
    The document that is mentioned in the task CS 29 amdt 3
    https://www.dropbox.com/s/osu0hrbhls89m8d/CS-29%20Amendment%203.pdf?dl=0
    (I do not advise you to read, you can not make it to the end of the challenge :-)

    Vlad Syrkin has uploaded 113 CAD models & has left 116 comments.
  • Arul Ananth

    Arul Ananth 3 months ago

    plz give bench mark product deimension

    Arul Ananth has uploaded 5 CAD models & has left 1 comments.
  • James

    James 3 months ago

    "JUDGING CRITERIA: 1) Does this submission meet technical and file submission requirements?" "SUBMISSION FILE FORMATS AND DELIVERABLES - 3D model (CAD files “.model” format)." .MODEL??? You mean to tell me this contest is only applicable to CATIA users? Or those who MAYBE might be able to export a viable MODEL format file?

    James has uploaded 0 CAD models & has left 5 comments.
  • Fahad Rafi

    Fahad Rafi 3 months ago

    May be they want a royalty free pump.. :)

    Fahad Rafi has uploaded 241 CAD models & has left 438 comments.
  • Nathaniel Andresmooi

    Nathaniel Andresmooi 3 months ago

    If the buyer Airbus does not award prize the it is a non purchase. In order to post a project to the competition you are making it public domain. "Only public entries are eligible." Providing the world with "non-exclusive" access. If you do win then they own your idea upon receiving payment.

    Nathaniel Andresmooi has uploaded 5 CAD models & has left 243 comments.
  • Nathaniel Andresmooi

    Nathaniel Andresmooi 3 months ago

    Which part of "CS 29 amdt 3" need the pump adhere to? The document seems to include a very wide range of standards unattached to a water glycol and iso-propanol pumping system on an aircraft.

    Nathaniel Andresmooi has uploaded 5 CAD models & has left 243 comments.
  • Francois CHERY

    Francois CHERY 3 months ago

    @Nathaniel Andresmooi: main CS29 requirement lies in the CS29 Subpart F where equipment shall fulfill general DO160 criteria and EN 2282 as typical examples.

    Francois CHERY has uploaded 0 CAD models & has left 8 comments.
  • Francois CHERY

    Francois CHERY 3 months ago

    @Chris Tziros: the expected design shall include the assembly of a pump and its drive (28VDC). Weight and volume target are for this assembly (including also any electronics required for controlling the electric motor).

    Francois CHERY has uploaded 0 CAD models & has left 8 comments.
  • Francois CHERY

    Francois CHERY 3 months ago

    @Anul Ananth: a typical dimension for the pump assembly would be 120mm diam. by 180mm length, but other similar dimensions are acceptable depending on pump selected technology.

    Francois CHERY has uploaded 0 CAD models & has left 8 comments.
  • Francois CHERY

    Francois CHERY 3 months ago

    @Ananth Narayan: with respect to altitude of -2000 ft to 10000 ft, it has to be considered for pump installation conditions.
    The pump will use water stored in a tank at the ambient pressure resulting from the operating altitude, then the water will be dispensed in pipes at a pressure increased by 5 bars (minimum) up to 10 bars (desirable).

    Francois CHERY has uploaded 0 CAD models & has left 8 comments.
  • Jace Owens

    Jace Owens 3 months ago

    What specific regulations do we need to follow in CS29 amdt 3?

    Jace Owens has uploaded 2 CAD models & has left 6 comments.
  • Jace Owens

    Jace Owens 3 months ago

    What is the amp input requirement?

    Jace Owens has uploaded 2 CAD models & has left 6 comments.
  • Chris Tziros

    Chris Tziros 3 months ago

    I think it is pretty clear but i just need a final clarification.
    Is ".STL" or any other CAD file format except ".model" ACCEPTABLE (yes or no).
    Just asking due do the majority of the people uploading in .STL
    Also what is the file format needed for the electrical schematics?

    Chris Tziros has uploaded 10 CAD models & has left 32 comments.
  • Passemard Cyril

    Passemard Cyril 3 months ago

    Both "STL" and ".model" format are acceptable. Regarding electrical schematics, ".pdf" is ok.

    Passemard Cyril has uploaded 0 CAD models & has left 3 comments.
  • Passemard Cyril

    Passemard Cyril 3 months ago

    Regarding CS29 regulation, this was answered previously by Francois:"main CS29 requirement lies in the CS29 Subpart F where equipment shall fulfill general DO160 criteria and EN 2282 as typical examples."

    Passemard Cyril has uploaded 0 CAD models & has left 3 comments.
  • Christine Annette LaBeach

    Christine Annette LaBeach 3 months ago

    Are STP or CATPart files acceptable?

    Christine Annette LaBeach has uploaded 0 CAD models & has left 1 comments.
  • Passemard Cyril

    Passemard Cyril 3 months ago

    @Christine. Yes for both.

    Passemard Cyril has uploaded 0 CAD models & has left 3 comments.
  • Francois CHERY

    Francois CHERY 3 months ago

    @Jace Owens: there is no requirement on the amp. value for supplying pump electrical power. It will derive from the combination of delta pressure, mass flow and pump efficiency, considering that the power supplied is under 28VDC.
    The installation of the system on our aircraft will take into account the necessary amp. required.

    Francois CHERY has uploaded 0 CAD models & has left 8 comments.
  • Tarik C

    Tarik C 3 months ago

    The necessary power to do the job for an efficiency at 100% is +/-200W.
    How is piloted the motorisation of the pump (flow control): PWM signal, potentiometer..? Does the operator is located closed to the pump or in the cockpit?

    Tarik C has uploaded 11 CAD models & has left 60 comments.
  • Tarik C

    Tarik C 3 months ago

    Also, the best technology in this case is the one used in the "karcher": plastic axial piston pump. Also, to stay reliable (leaks) after 10.000 cycles of 10 sec, this is not an easy task (seals wear, leaks...)
    To produce a quality job, the delay is very very short...! I do not know yet if it's worth it that I start going to the drawing board!

    Tarik C has uploaded 11 CAD models & has left 60 comments.
  • Fredrik Lie Larsen

    Fredrik Lie Larsen 3 months ago

    To me this seems like a really bad deal. Here Airbus is asking you do fully design and vet a ton of requirements, some of which are pretty hard to simulate for. Developing a pump like this seems more like a job for a team of your engineers, not a job done by randoms for a mesely 6 grand. Trying to save on labour cost`?

    Fredrik Lie Larsen has uploaded 10 CAD models & has left 31 comments.
  • Francois CHERY

    Francois CHERY 3 months ago

    @Tarik C: the pump is expected to be piloted by either an analog input (voltage control for example) or ideally a digital input (e.g. ARINC429 protocol).
    Indeed, the pump will not be piloted directly by an operator but through the aircraft avionics.

    Francois CHERY has uploaded 0 CAD models & has left 8 comments.
  • Yashaswi Sharma

    Yashaswi Sharma 3 months ago

    "The challenge concerns the availability of a quick acting electrical water pump without limitation linked to absence of specific lubrication."

    1) According to the brief are we being asked to design a pump that does not require lubrication or a lubrication system.

    Yashaswi Sharma has uploaded 0 CAD models & has left 6 comments.
  • Marco Boer

    Marco Boer 3 months ago

    I hope it will not be judged on the best render..

    Marco Boer has uploaded 3 CAD models & has left 18 comments.
  • Nathaniel Andresmooi

    Nathaniel Andresmooi 3 months ago

    @Yashaswi Sharma Would assume they mean its a sealed non serviced pump. You don't grease or lubricate it.

    Nathaniel Andresmooi has uploaded 5 CAD models & has left 243 comments.
  • Nathaniel Andresmooi

    Nathaniel Andresmooi 3 months ago

    @Francois CHERY Will the pump be allowed to drain? Is this the ideal storage state? Or will some (non freezing) working fluid remain in the pump. This effects the ability to prime. It was asked if we needed to design the motor. Sounds like we can specify a manufactured drive motor but total build needs to be within "4 kg" and "2 Liter build volume" including motor. Another useful item that should be mentioned would be the water line fittings you want the pump to mate to. For example a link to the fitting on a parts catalog like https://www.mcmaster.com/mva/library/20110822/3861t810l.gif or a resource with a picture is easiest for understanding.

    Nathaniel Andresmooi has uploaded 5 CAD models & has left 243 comments.
  • Chris Tziros

    Chris Tziros 3 months ago

    Is there a production number you are looking to produce. Since some of the parts are not catalog parts, production methods and therefore cost/unit definetely gets affected by the target production number.

    Chris Tziros has uploaded 10 CAD models & has left 32 comments.
  • James Swarthout

    James Swarthout 3 months ago

    So...It needs to be submitted in Catia file format...no problem. They get to retain all rights to the design that has been submitted; even if you don't win! No thanks!...I'm not going to grant you the right to make a few changes to my design without getting paid for the concept.

    By submitting an Entry in the Airbus Challenge, each Entrant grants to Airbus (Sponsor) and its designees a worldwide, non-exclusive, sub-licensable, transferable, fully paid up, royalty-free, perpetual, irrevocable right to use, reproduce, distribute, create derivative works from, publically perform, publically display, digitally perform, make, have made, sell, offer for Sale and import the Entry and to develop or have developed the technology described in the Entry, in any media now known or hereafter developed for any purpose whatsoever, commercial or otherwise, without further approval by Entrant (“Non-Exclusive License”).

    James Swarthout has uploaded 0 CAD models & has left 1 comments.
  • Nathaniel Andresmooi

    Nathaniel Andresmooi 3 months ago

    Aren't most things submitted in an open format on grabcad? Ie a non-exclusive license? In which case when you submit a project you are in effect making your models public domain.

    Nathaniel Andresmooi has uploaded 5 CAD models & has left 243 comments.
  • Francois CHERY

    Francois CHERY 3 months ago

    @Nathaniel Andresmooi: both design solution are equally acceptable: either the pump drains fluid so that no adverse effect of freezing is feared or the pump design retains some fluid and is freeze resistant.
    Water line fittings are free to select as long as it fits the 6 to 10 mm (approx. 1/4 to 3/8 inch) water line internal diameter for input and output.
    With respect to drive motor design, it is not mandatory to design this part but it is expected to identify off-the-shelf equipment and to design the proper interface with the pump itself.

    Francois CHERY has uploaded 0 CAD models & has left 8 comments.
  • Chris Tziros

    Chris Tziros 3 months ago

    @Francois CHERY: Is there a production number you are looking to produce. Since some of the parts are not catalog parts, production methods and therefore cost/unit definetely gets effected by the target production number.

    Chris Tziros has uploaded 10 CAD models & has left 32 comments.
  • Francois CHERY

    Francois CHERY 3 months ago

    @Chris Tziros: yearly production number would be less than 100 units.

    Francois CHERY has uploaded 0 CAD models & has left 8 comments.
  • Prashanth Balasubramanian

    Prashanth Balasubramanian 3 months ago

    can we submit multiple entries for this competition ?

    Prashanth Balasubramanian has uploaded 0 CAD models & has left 1 comments.
  • Abe Gladstone

    Abe Gladstone 3 months ago

    @Prashanth Yes, you can submit multiple entries.

    Abe Gladstone has uploaded 0 CAD models & has left 18 comments.
  • Yashaswi Sharma

    Yashaswi Sharma 3 months ago

    Hey GC and contest holders, any chance of extending the deadline. It would be very helpful. I've been working on the contest but I don't think I will be able to finish my work by then. Thanks

    Yashaswi Sharma has uploaded 0 CAD models & has left 6 comments.
  • Abe Gladstone

    Abe Gladstone 3 months ago

    Hi @Yashaswi Sharma, unfortunately we are unable to extend the deadline as Airbus has a deadline for this file that requires the challenge to end on June 24th at Midnight EST.

    Abe Gladstone has uploaded 0 CAD models & has left 18 comments.
  • Jay Ambaram

    Jay Ambaram 3 months ago

    AH! I keep coming across these challenges at the last minute. Any way to create an alert for challenges as they become available? I'll work on this problem nonetheless :)

    Jay Ambaram has uploaded 1 CAD models & has left 2 comments.
  • f234k

    f234k 3 months ago

    Ah, So Sad, I just know this challenge Exist, only 4 hours left, better luck for me next time.....

    f234k has uploaded 3 CAD models & has left 11 comments.
  • Bill Kapok

    Bill Kapok 3 months ago

    This time again, the Ending time was misrepresented.
    EST = Eastern Standard Time.
    At 20:24 EST, when I checked, the challenge was already ended.

    Bill Kapok has uploaded 0 CAD models & has left 7 comments.
  • Tarik C

    Tarik C 3 months ago

    P(W) = Q(m3/s) x P(Pa)
    =>

    11l/min = 0.000183m3/s
    10bars (relative) = 1000000Pa

    0.000183x1000000=183Watt !!!

    Tarik C has uploaded 11 CAD models & has left 60 comments.
  • Hein Miessner

    Hein Miessner 3 months ago

    Good luck to everyone who enterred the challenge and thanks to airbus and grabcad for hosting this challenge. It was a lot of fun to take part and submit an entry for this. Great to see so many minds and talented designers get to work and put solutions together. Great grabcad community at work again :)

    Hein Miessner has uploaded 29 CAD models & has left 66 comments.
  • Andrie Safargi

    Andrie Safargi 3 months ago

    can you show me.
    until when the deadline?

    Andrie Safargi has uploaded 0 CAD models & has left 2 comments.
  • Matt Firmani

    Matt Firmani 3 months ago

    Hey Everyone! I'm the Community Support manager at GrabCAD, and I wanted to pass along word that the winners of this challenge have been announced! Click over to the "Results" tab and take a look!

    Congratulations to our winners, and thanks to everyone who put their time and hard work into participating. We have more challenges on the way, and we hope to see you all there!

    Matt Firmani has uploaded 1 CAD models & has left 23 comments.
  • Ilirjan Leci

    Ilirjan Leci 3 months ago

    Some of the results do not met the requirements,if you had something else in mind say so,and some did great job...

    Ilirjan Leci has uploaded 103 CAD models & has left 172 comments.
  • Dmitriy Reschetnikov

    Dmitriy Reschetnikov 3 months ago

    Нет ни одного решения. Ни один не соответствует заявленным требованиям.
    Здесь не должно быть победителей. Ни по габаритным, ни по техническим требованиям предъявленным в задании. Как Вы вообще выбирали - по каким критериям???

    Dmitriy Reschetnikov has uploaded 4 CAD models & has left 7 comments.
  • Marco Boer

    Marco Boer 3 months ago

    Next time I will spent more time rendering..But still I want to congratulate all winners, nice job.

    Marco Boer has uploaded 3 CAD models & has left 18 comments.
  • Peyman Sohrabi

    Peyman Sohrabi 3 months ago

    Congratulations to the winners👏🏼👏🏼👏🏼

    Peyman Sohrabi has uploaded 2 CAD models & has left 5 comments.
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