The table in my workshop/man cave was in desperate need of some cable management. The best way I could see fixing this problem is by running some of my cables down through the desk. The only issue with this is that I would then have a huge ugly hole in the middle of my desk. So this was the good news moment of my day.
Good News: I had a white 2â€³ desk gromit I could use to fill the hole and class things up a bit.
Bad News: My desk is black.
I had some black ABS already loaded in my Thing-o-Matic so I took the next logical step and reached for my digital caliper to get modeling. In about 15 minutes I was able to make a nearly exact scale model of my white desk gromit in Google Sketchup.
You can read more about my design process in this blog post:
The top fits snuggly into the base without being too hard to remove. It actually holds on a little better than the store bought model.
This model can be scaled up or down to fit various hole sizes, the full size model will fit a 2 inch hole.
I've also included my SketchUp model if you would like to make modifications beyond scaling.