Modelling the Amiga: Amiga 1000 front flap for modification

After being tempted for years to tinker with a 3D printer, I took the plunge last Autum.  But what am I doing with it?  Printing all those bits that you need, but can’t find…

Part 1: the front cover for the Amiga 1000.  Quite a few 1000s seem to be missing this part as they are wont to fall off in storage, or whilst being transported, or wherever.

I have a GBA 1000 which adds (amongst other things) an IDE interface. on which I use a CF card with an IDE adapter.  I also have a Gotek floppy drive emulator, which has a small display and needs a USB slot, and a couple of buttons…  I have been tempted more than once to make modifications to the front cover, such as cutting a slot for the CF.

But cutting 30 year old irreplaceable stuff is not something I want to do.

A1K RAM Cover

A1K RAM Cover

And hence, I’ve spent an evening with calipers, ruler, and OpenSCAD to model a replacement.   OpenSCAD is an interesting modelling tool, as rather than WYSIWYG editing, you define your model using Constructive Solid Geometry (CSG) primitives – and CSG was the subject of my final year degree project.

So rather than defining polygons, you define a cube, subtract another cube, union with another cube, rotate, translate, iterate… just in text.

The result can be seen here.

I will release the OpenSCAD file eventually, however for now I am making the STL available on Thingiverse   – I have updated to v2, removing 0.5mm width to allow a better fit and adding strengthening for the thin vertical clip pieces.  They are very fragile, so if printing with supports be careful when removing the supports!



Family man, international businessman and geek at heart.

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