Here’s DXF design of Joerg’s original design. The holes in the file are 3.5mm but those are bit tight for 5mm tube that I used. I suggest 4.5mm – 5mm holes if you use 5mm silicone tube.
Here’s DXF design of Joerg’s original design. The holes in the file are 3.5mm but those are bit tight for 5mm tube that I used. I suggest 4.5mm – 5mm holes if you use 5mm silicone tube.