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Discussion Starter · #1 ·
My X axis is failing to respond, Z and Y are fine. I have checked wiring on the side for loose connections, they seem good. When I Home All on UCCNC the software co-ordinates are moving on the PC but the AR8 is not. When the machine is on I am able to move X by hand which seems strange.The machine is approx 2 years old but only used as a hobby toy maybe 1 weekend in 4, havn't even worn out the bits that came with the machine.If anybody can point me in the right direction, it would be much appreciated, as I live in Australia and help is very scarce.
 

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David - Machinist in wood
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When the machine is on I am able to move X by hand which seems strange.
That certainly sounds like either the stepper isn't getting power or the stepper is bad. Any chance you can switch cabling between X and Y to see if the same thing occurs with either Y not moving or being able to move Y by hand with power applied?
 

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G'day @Mic666 , welcome to the forum.
 

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Discussion Starter · #6 ·
That certainly sounds like either the stepper isn't getting power or the stepper is bad. Any chance you can switch cabling between X and Y to see if the same thing occurs with either Y not moving or being able to move Y by hand with power applied?
Just done that,now x works and y does not,and i can push y by hand and noyt x, think it maybe the board
 

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David - Machinist in wood
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Just done that,now x works and y does not,and i can push y by hand and noyt x, think it maybe the board
So at least now you know the X stepper is good. I realize you checked the connections but is it possible to switch out the cables end to end to verify the cable is good?
 

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Pull the side cover off of your machine (left side facing machine) and there should be a multi-pin connector for the motor and the wiring harness. Use a VOM to check continuity on the cable running from your board to the multi-pin connector at the motor end. If all is good then it sound like your board is bad. Hopefully you're not running a Rich Auto hand held setup like here in the states, as those units are all one piece inside the control box.
 
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