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General Mach Discussion / Re: Newbie with TB6560 1st time testing problems
« on: April 02, 2013, 01:51:33 AM »
Hi Gary,
Assuming I understood your description correctly this is how I arrived at the figures…
Your steppers are 200 steps per revolution – that is 1.8 degrees per step.
When you set 1/8 micro-stepping (8 micro-steps per 1.8 degree step) this increases the steps per revolution to 1600.
You have a gear reduction of 20 tooth to 60 tooth which equates to reduction of 3:1
You have a 20 tooth pinion running on a 1.5mm pitch rack so one revolution of the pinion moves it 30mm along the rack. This makes the equivalent lead-screw pitch 30mm.
Tweakie.
Assuming I understood your description correctly this is how I arrived at the figures…
Your steppers are 200 steps per revolution – that is 1.8 degrees per step.
When you set 1/8 micro-stepping (8 micro-steps per 1.8 degree step) this increases the steps per revolution to 1600.
You have a gear reduction of 20 tooth to 60 tooth which equates to reduction of 3:1
You have a 20 tooth pinion running on a 1.5mm pitch rack so one revolution of the pinion moves it 30mm along the rack. This makes the equivalent lead-screw pitch 30mm.
Tweakie.
