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General Mach Discussion / Re: RE: z-axis depth problems
« on: November 09, 2010, 11:58:27 PM »
Tweakie
Thanks for your reply. Since my original post I have done some test adjusting the velocity and accel of my z-axis motor. I also switched the x-axis and z-axis drivers. All to no avail. Same problems. I am now back to thinking this is a mechanical issue. I am going to dissassembly my z-axis lead screw, couplers, motor and tighten everything back down. I am loosing between 1/16" and 1/8" on my z-axis over the course of running a program. I am thinking now that the couplers connecting my z-axis motor to my leadscrew might be slipping a little bit and perhaps my motor is a little underpowered and having a little trouble overcoming the initial static friction when it starts to move.
Ah well. That's why we chose to play with these machines because it's fun/frustrating trying to get them to work just right.
Stephen
Thanks for your reply. Since my original post I have done some test adjusting the velocity and accel of my z-axis motor. I also switched the x-axis and z-axis drivers. All to no avail. Same problems. I am now back to thinking this is a mechanical issue. I am going to dissassembly my z-axis lead screw, couplers, motor and tighten everything back down. I am loosing between 1/16" and 1/8" on my z-axis over the course of running a program. I am thinking now that the couplers connecting my z-axis motor to my leadscrew might be slipping a little bit and perhaps my motor is a little underpowered and having a little trouble overcoming the initial static friction when it starts to move.
Ah well. That's why we chose to play with these machines because it's fun/frustrating trying to get them to work just right.
Stephen