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Chris Humphris

Semi Retired. Ex RAAF RF Technician, Project Management in Microwave Communications Design and Manufacture. I have always had an interest in all things mechanical.

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Brisbane, Australia

Models

12 Way Screw Terminal Strip

Jaycar Part Number HM3194 6 Amp 9.5mm Pitch

4 22 0

Panel Mount 3 Pin Socket (AS/NZS 3112)

Used in Australia & New Zealand, this 240VAC outlet is available from Bunnings (Part No 4430697)

0 4 0

RXLG 100Ohm 400W Braking Resistor

Used to dissipate energy during rapid deceleration of 3 phase motors. I use this resistor to safely brake a 2.2kW 3 Phase motor on my lathe.

1 15 0

Diamond Drag Engraving Tool

My version of a Diamond Tipped Drag Engraving Tool. Uses a modified inexpensive diamond dresser Part No GH7-1.

2 19 0

Concrete Screw Anchors M8 x 50, M10 x 60, M12x75

I modelled these common sizes for my library of fasteners.

0 80 0

Utensil Storage Tray for Ziegler & Brown 2 Burner BBQ

I recently replaced my original Ziegler & Brown 2 Burner BBQ. The original had a Utensil Storage system, however the new one did not. I misse...

2 13 0

Electronic Leadscrew Manual ER32 Collet Lathe

I have spent some months designing my version of an Electronic Leadscrew Manual ER32 Collet Lathe. The design utilizes Electronics and Firmware dev...

56 261 2

ER32 Hex & Square Collets suitable for common stock sizes. 3D Printed in PETG.

8 Hex Collets sizes range from 5mm to 9/16 inch (14.3mm). 7 Square Collets sizes range from 1/4inch (6.35mm) to 9/16inch (14.3mm) Labeled ER32 Co...

7 63 0

Vice Grip Slide Hammer

Thanks to Samy (for his excellent model of Vice grips. Link here): https://grabcad.com/samy.youssef-1 Here is a version that converts the tool to a...

3 44 0

Centre Drill Index

Printed in PETG. My Centre Drill Index accommodates drills ranging from 1/8" to 1/2".

6 29 0

Spot Drill Index

Printed in PETG. My Spot Drill index facilitates Spot Drills in both 118° and 120° Tip Angles. Sizes accommodates drill ranging from 2.5 to 16mm ...

9 32 0

GD-60S Adjustable Retractable Levelling Castor

I spent some time reversing engineering this castor. It is a reasonable facsimile of the real thing, close enough to use in your designs.

3 67 0

Diecast Aluminium Enclosure CU-124

CU-124 Diecast Enclosure

0 29 0

Fly Press

Convert your cheap 1 Ton Arbor press into a small Fly Press. A couple of tapped holes added to the Arbor Press Frame enables the Fly Press compone...

10 73 0

TR20 x 8P4 2 Start Trapezoidal Lead Screw & Flanged Nut

200mm Long Double Start 20mm Trapezoidal Leadscrew with Brass Flanged Nut. DIN103-9

3 223 0

6mm Ball Oiler

Commonly used on Lathes and Milling Machines. This version is 6mm Diameter x 6 mm long.

2 33 0

EG23-G50-D10 Planetary Gearbox Assy

Reduction 50:1. Modelled from available diagrams on the net. Does not feature internals.

1 83 0

Rotating 130mm 3 Jaw Chuck for 3 Morse Taper Tailstocks

Designed for lathes with a 3 Morse Taper Tailstock. Uses 3 oil lubricated 7203 Angular Contact Bearings with provision to add or drain SAE90 Oil. D...

19 407 0

Toolpost Mounted Drill Chuck

My version of Stefan Gotteswinter's method of drilling holes on a lathe without the use of a tailstock. Adapted to use in my lathe. The arbor is ma...

2 39 0

Machinist Jack Height Range 95 - 140mm

My version of a Machinist Jack that suits my Milling Machine needs.

5 28 0

Generic 12.7 (1/2") Keyless Drill Chuck

Features 1/2" 20TPI Thread

5 219 0

Mini Press used for inserting Heatsert style Nuts into 3D Printed Parts

Initially designed to fit caps to Right Angle SMA Connectors during Coaxial Cable assembly, I recently added a fitting so that a Hakko 907 solder ...

12 111 0

Hakko 907 Soldering Iron Handpiece

Hakko 907 Soldering Iron Handpiece. For those interested, the internal thread of the nut & matching external thread on the handpiece is non-sta...

2 102 0

Reduced Shank Drill Index - 3D Printed

I recently designed & 3D Printed parts to make a drill index for my reduced shank drill collection. Shank size is 12.7mm (1/2"). Accommodates ...

2 24 0