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3D printed HDD slots and slide lock for Power Macintosh G3

Forums > Vintage Apple > Macintosh > Macintosh LC & Performa

ArjenCNX
Tinkerer
--------
Joined: Oct 20, 2025
Posts: 63
Likes: 55
Dec 4, 2025 - #1
Hi there All,

I have a Power Macintosh G3 in and the plastics are very crumbly, so i have spend a few hours to make the needed parts in CAD and i have test fitted them. a few revisions down the line, they are ready to print.

Here to share:

- HDD slide in brackets (the ones that live on the metal frame)
- Slide lock to lock the swivel frame in place
- HDD bracket for mounting to the drive

0.4mm nozzle, 0.1mm step height, ideally PETG material print with supports. please check slicer image for best print orientation.

Happy printing!

Arjen.
Attachments:
Power macintosh G3 parts.zip (137.4 KB)
IMG_0700.JPG (972.2 KB)
IMG_0701.JPG (566.9 KB)
IMG_0702.JPG (631.8 KB)
IMG_0703.JPG (679.7 KB)
Slidelock+brackets print oriontation.JPG (334.1 KB)

Liked by Scorpio_ny,Nitram78,Fizzbinnand 1 other person

ArjenCNX
Tinkerer
--------
Joined: Oct 20, 2025
Posts: 63
Likes: 55
Dec 8, 2025 - #2
I have also drawn up the Motherboard supports and the Motherboard clasp as they are also crumbly

print with 0.4mm nozzle at 0.1mm layer height out of PETG material
Attachments:
Powermac G3 mobo clasp.JPG (185.4 KB)
Powermac G3 Mobo support.JPG (103.2 KB)
Powermac G3 Mobo support rev 1.1.stl.zip (13.1 KB)
Powermac G3 Mobo clasp rev 1.1.stl.zip (6 KB)
IMG_0707.JPG (640.8 KB)
IMG_0709.JPG (620.8 KB)
IMG_0712.JPG (679.8 KB)
IMG_0714.JPG (1.1 MB)
IMG_0715.JPG (802.6 KB)

Liked by Scorpio_nyandNitram78

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