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Topics - skimann20

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General Mach Discussion / X-Axis Motor Tuning help.
« on: January 02, 2015, 05:08:42 PM »
Hello all,  I really didn't want to start this one but i searched and tried solutions that others have suggested and none are working for me.  I think mine might be deeper.  I'll try my best with supplying info to you and will get you as much as I can.  (photos/videos too if needed) I'm really a new user to CNCs.

I have ZERO issues with my y and z axis on the motor tuning. they move super smooth. my x-axis seems to fail here and there and it's just killing my CNC production work when doing 3D work.

The motor is a IDC P33V-CO Part number is 801-307.  It is connected to a screw drive that is about 6' long.  my initial thought was it was binding because the the drive was not completely square. I've fixed that issue and I still see skipping (mainly only in 3D).  I would think this motor should be strong enough to kill me but I can stop the movement of the carriage with little effort with the current tuning. Is it getting to little of power? 

The drive I'm using is a Geckodrive G540

CNC table is ~7'x2.5'

X-axis settings:
Steps per: 78.80090284
velocity: 4000.2
acceleration: 900
step pulse: 1
Dir Pulse: 0

if you need more info and/or any suggestions please let me know.
 cheers.
~Brad

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General Mach Discussion / Y Axis Help
« on: September 27, 2013, 11:16:21 PM »
I bought my CNC used and am VERY new to it.  He showed me how it works and it worked great for him...

I'm having different results.  here is what is happening.  when i move the y axis with Shift/arrows it moves smooth as butter. One thing that it sometimes does is when I press up it moves one direction then when i push down it still moves the same direction i have to press down again and it changes direction.   I'm sure this is something with my real issue.

my real issue is when I process a GCode (simple circle or square) the x and z moves great, Y sounds like its going to vibrate the machine apart.  doesn't move at all. 

I'm sure you are going to need more info so please let me know and I'll do my best to get the info for you.  Z and X axis is a Gecko stepper motor drive G723-400-4

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