calulating accurrcy for cnc build | |
need help calculating my accuracy? not sure if i did this correctly
rack and pinion set up
info
30 tooth spur gear 20 deg pressure angle, pitch dia. 1.5"
gear ratio 7.2:1
calculations
1.5x 3.14159...=4.71238898 inches for every rotation of spur
4.71238898 /7.2 gearratio=.654498469 inches of axial movement per rev
gecko step (2000) 0.654498469 /2000=.000327249 inchs pers step |