Wednesday, December 30, 2015
Milling Time Calculations
The program that I wrote for generating gCode to excavate material: I added some code to figure out how long it would take. For every operation I know how many inches the mill is moving and the feed rate. Knowing when to return to the mill is a great advantage. So I tested it last night. Th program computed 23 minutes to do the operations. t actually took more like 26 minutes. My guess is that while LinuxCNC lets me set feed rates as high as 100 in/min, the Sherline mill may not actually move that fast, making the calculations bogus. I guess today I will measure to see what the actual maximum speed is. Actual max speed is 20 in/min.