A week or so ago a fellow Hamber showed some interest in gaining a little knowledge about using math and machines. It occured to me that probably most Hambers have never gotten the opportunity to use real industrial machinery or struggle with how to make accurate cuts with small home machines. So in that vein I decided to try and create a thread that shows the basic Trigonometry (keep reading) and how simple it can be. Hope I didn't make any obvious mistakes here, but I tried to put this together so that its easy to understand. If anyone has any questions about how to do basic machining, I'd be glad to try and help them. Anyway, here are some pictures that I hope will help anyone wanting to give machining a try.