Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: NormB on February 12, 2010, 08:00:27 AM
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Does anyone know what this adjustment is for? I have looked all over trying to figure out what it is supposed to do and cannot find any information on it. I am not sure if I need adjust or not but first I have to find out what I am adjusting,
Norm
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I presume it will be the same as on the G201 drives, the 201 manual details how to adjust if I recall (been quite a few years :) )
Hood
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Found it, thanks Hood..........
I have one more sort of related question. The lead screw being 4 turns per inch if I were to change that to 10 turns per inch the stepper will have to turn faster to move the same distance have I imporved the accuracy. Maybe a better way to phrase that question is "does the lead screw thread per inch have any bearing on the accuracy of the move?
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Hood's having a break. ;D
Yes accuracy improved or actually resolution, but speed slowed
4 / 10 = 40% decrease in speed, 40% increase in resolution
10 TPI for a mill
4 TPI for a router
All other things being equal
Phil
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Thanks Phil, I sort of thought that but for a router I think the 4 TPI is probably the right way to go. that is what I am runningbut have to do some major work on the drive system for more reliability and thought if I need to change them now is the time.
I have couplings connecting the motor to the drive screw and they are split tubes with set set screws at each end and have a tendency to loosen up I have to fix that ..... I am looking now for a better coupling arrangement.
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The couplings I am using now are Single Split Couplings