Parts by Geci

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Parts by Geci Parts by Geci creates reproduction and custom car parts for the classic and retro car enthusiast.

There is nothing worse than a k**b missing from your classic radio in your old Holden! I produced these k**bs as a repla...
26/09/2026

There is nothing worse than a k**b missing from your classic radio in your old Holden! I produced these k**bs as a replacement to the black plastic k**bs found on Air Chief radios in 70’s to 80’s era Holdens. They are designed from a Philips CS822A model with a 3/16” (4.76 mm) split shaft. See the close up image of the shaft in the product listing.

Finish: Raw 3D printed
Colour: Black
Material: Nylon PA12
Supplied as a pair
Designed in Australia

Likely compatible models: (please verify before ordering)

Holden HJ (1974–75)
Holden HX (1976–77)
Holden HZ (1977–80)
Holden WB (1980–84)
Holden Sunbird (1976–80)
Holden UC Torana (1978–79)
Holden VB Commodore (1978–80)
Holden VC Commodore (1980–81)
Holden VH Commodore (1981–84)
Holden VK Commodore (1984–86)
Holden TD Gemini (1978–79)
Holden TE Gemini (1979–82)
Holden TF Gemini (1982–84)
Holden JB Camira (1982–84)
Holden KB Rodeo (1980–88)

29/08/2026

How I do it!

Where possible I try to make my parts work with the factory mounting points. That way you can always return it to stock if you need.

There’s nothing worse than screw holes in your dash from some dodgy old accessory you no longer have!

If you’ve got any video requests let me know! Have a good one! Cheers! ✌️

26/08/2026

Don’t overthink your projects!

I’m the worst at this. This is how my brain works:

I need new tyres. But I don’t want to put new tyres on these old rims. So I should get new wheels. But if I get new wheels then I should upgrade my brakes at the same time because that will change my offset. To do the brake upgrade I need to change the axels. So while the diff is out then I should put in an L*D.

Before I know it, I’ve gone from new tyres to a full rear end rebuild and upgrade.

This is the enemy of progress! So take my advice and take on smaller projects. Your car will stay on the road for longer and you’ll actually get to enjoy it more.

Anyway, thanks for watching. Have a good one! Cheers! ✌️

Reverse engineering and prototyping this part took me back to why I got into this hobby to begin with. Tinkering, trying...
24/08/2026

Reverse engineering and prototyping this part took me back to why I got into this hobby to begin with. Tinkering, trying things out, and just seeing what would happen. I’m very happy with the end result and hopefully they can breathe some new life into some old cars.

Available now on the website! To suit Holden Gemini.

Finish: Raw 3D printed
Colour: Black
Material: Glass Reinforced ABS
Mounting Hardware: M4 Stainless Stud, Washer, & Nyloc Nut
Designed in Australia
Made in Australia

22/08/2026

Print settings ⬇️⬇️⬇️

I saw this material on a YouTube video and thought I’ve got to try that.

TPU usually is tricky to print with and requires special setups. But this Siraya Tech TPU-GF is AMS compatible.

I did have to dry it thoroughly to get the best print possible print quality but that is typical of TPU.

Printer: Bambu Lab X2D (0.4mm nozzle)
Filament: Siraya Tech TPU-GF (black)

Layer height: 0.20mm
Walls: 4
Top/bottom layers: 5 / 3
Infill: 25% grid

Nozzle: 260°C
Bed: 35°C (textured plate)
Flow ratio: 0.96
Max volumetric speed: 12 mm³/s

Outer wall: 120 mm/s
Inner wall: 150 mm/s
Infill: 150 mm/s
First layer: 50 mm/s

Cooling: 30–75% (100% overhangs)
Brim: auto, 5mm

12/08/2026

Extract entities is one of those essential tools in that I couldn’t do without. This is a simple use case which shows just how quick it can make reverse engineering in SolidWorks.

That’s the end of this 3 part series! If you enjoyed this content leave a comment down below and I’ll keep bringing more of it!

If you ever want to chat about anything 3D scanning, 3D printing, or reverse engineering, I’m here to help! Let’s chat! ✌️

11/08/2026

Hands down the most useful tool in for me is the cross section tool. Especially since SolidWorks on its own does such a bad job of this.

If you are working with a high density 3D mesh, the built in SolidWorks cross section tool will make a line for every intersecting mesh triangle. This will explode your computer immediately and send your graphics card into the stratosphere.

QuickSurface however makes a light weight reference sketch you can extract shapes from and sketch over the top of. I never want to go back to the old way of doing it!

If you ever want to chat about anything 3D scanning, 3D printing, or reverse engineering, I’m here to help! Let’s chat! ✌️

Address

Mount Compass, SA
5210

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