I recently read a good post about nominal screw diameters and hole clearances over at Toolmonger, a blog I personally read. Give it a look if you’re interested. They regularly feature interesting tools, projects, and ideas that engineers would enjoy reading. From Scissors to Shop Class History to Gauge Blocks, they have some great stuff!
Archive for September, 2009
About Machine Screw Diameters
Wednesday, September 23rd, 2009Milled & Vapor Polished Polycarbonate Coverplate
Monday, September 14th, 2009This part is an example of our milling department’s capabilities. It is machined out of a sheet of polycarbonate and vapor polished to a perfectly clear finish. Engineers designing parts that require visually or optically clear finishes should know that polycarbonate is an excellent material choice. Acrylic works well too but polycarbonate polishes to a clearer finish almost every time.
This part is used in a light housing and is implemented as a lens. The inside of the lens has been cosmetically machined to help with light diffusion.
