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Posts: 79 | Thanked: 719 times | Joined on May 2014 @ Buenos Aires, Argentina
#10
We have a first prototype of the spacer frame. There are still a few small errors and missing features in the model, but by and large this is what we expect to use in the end.

First the ray-traced CAD model:
https://neo900.org/stuff/werner/spac...ray-traced.png

The blocks in the keyboard and display opening reduce the volume the CNC mill has to remove, making the milling faster. I'm using transparent acrylic. Next, the mill did its work:

https://neo900.org/stuff/werner/spac...-it-begins.jpg
https://neo900.org/stuff/werner/spac...ours-later.jpg
https://neo900.org/stuff/werner/spac...t-the-dust.jpg

After cleaning and a slight modification (there is one cut the mill can't make, so I did it manually) it looks like this:
https://neo900.org/stuff/werner/spac...th-key-mat.jpg

And this is what the whole assembly looks like:
https://neo900.org/stuff/werner/spac...-05-closed.jpg
https://neo900.org/stuff/werner/spac...er-06-open.jpg

If anyone wants to try it on their 3D printer, here is the STL:
https://neo900.org/stuff/werner/spacer/1/spacer.stl

And the scripts that generate the model in FreeCAD are here:
https://neo900.org/git/?p=misc;a=tree;f=spacer

- Werner
 

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