I have had nothing but success for the better part of a year with my table. Came in to the shop this morning to cut a file and the minute i went to drive the Y axis to set a new zero i get the hard alarm warning. The table will now only move an inch, then throw the warning. Seems like its specifically coming from the left side (computer station). When all powet is un plugged the gantry moves freely. No catching. Is this a bad limit switch, motor, or what??? Im at a loss after doing some troubleshooting.
Throw your limit switches away.
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So just remove them?
The top right corner of CutControl. Click on the stacked lines. Turn off soft limit switches.
Problem solved.
A hard stop can be a problem with the lead screw or the lead screw nut. It also can be a power issue. Try the switch thing first. Report back
Checked the lead screws and all corresponding hardware. Also turned off the limit switches. Still catching almost immediately after drying to drive it
Does it move in the X direction?
It could be a bad motor or a burnt pin in the control box. Are both motors trying to turn? Have you checked the couplers?
The carriage will rack if one of the motors is not working.
So if you believe the control box side motor is the problem, you can switch the DB 9 motor connector leads and switch them to see if the problem moves to the other side.
X moves fine. I was trying to problem solve this before disassembly of the gangry to check the motors out. It seems to be just the left side. Swapping the cables doesnt change anything. Its just staying with the red light of death now. Cant get it to move at all.
Check the pins on the control box power supply output inside to see if you have 36vdc. The power supply my not be putting out the correct voltage to run two motors.
Adjusting power supply voltage.pdf (1.8 MB)
It is easier to check before disassembling the carriage. They go bad all the time.
That may be the culprit. Not getting good voltage at all. I think the power supply is toast. Any links to where to get a new one?
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DC DC Switching Power Supply Adapter Amazon.com
You must use this one. A larger wattage unit will not fit inside the enclosure.
Did you try adjusting the trim pot on the old power supply?
The link says dc to dc but its not. Its AC to 36 vdc
120 or 240 by the switch on the side.
One set of pins had fluctuating voltage which i would assume is the issue. The others were stable but still low. I didnt want to mess with it when one set of pins wasnt even working properly
I keep a spare on the shelf. I have gone through two in five years. This is an issue for many guys. The trim pot gets Jared, and the voltage goes from 36 to 24VDC. Then, the motors get really weak and stall. The trim pot is very, very sensitive. The slightest jar can change the supply’s output. The origial unit is 360 watts @ 36 VDC. You can find larger wattage units but they won’t fit inside the enclosure without moving other shit inside. Make sure you set the switch on the side of the supply to the correct incoming voltage. My case its 120v.
I had this same problem. After changing the screw rod and motors it turned out to be the limit switches. You almost have to think of limit switches as a consumable.
I know someone who thinks of them as a ‘disposable’! 
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