Many of you will no doubt be familiar with the McMaster-Carr catalog of parts and supplies. They carry over 550,000 items ranging from screws and bolts up through pretty much any industrial part you can think of including lasers.
One incredible feature of their online catalog is that you can download 3D models and 2D tech drawings of thousands of items for free. Here’s a screenshot showing the various CAD formats available for a 10mm hex nut:
As a 3D printing enthusiast, I’ve found this to be a priceless resource. Thought I would share this, as there are many, many ways they could be useful to GF designers.
Take a look at http://www.mcmaster.com
Drill down to a specific part and if CAD files are available, you see something like this: