I am running a tiled job on my OneFinity Woodworker running 1.0.9 release. The job size is 32 inches by 66 inches. The job was designed with VCarve Desktop Pro version 11.014. While running a tool the machine will just jump to a random new position and the program continues from this new incorrec…

Hey John after you’ve setup again with replacement controller, could you check back again on this thread to confirm that it resolved the problem? It could give some help in the future should the same kind of thing pop up for others. I’m with you on the 1F support team.

The log files as noted above. As soon as I referenced the error the only remaining issue was if the would cover the faulty part under waranty, which was about 45 days over the year of ownership. So if you guys check your Error log and contact customer service. It looks like a known issue. I will be…

The new controller arrived today. Within the first few movements, after connecting the new controller, my X Axis jumped and lost its home setting. I have retraced all the wiring on my X axis and the cable plugging into the back of the controller to where it plugs into the tube, I read 0 ohms except…

Hey John, [image] eJohn: I have retraced all the wiring on my X axis and the cable plugging into the back of the controller to where it plugs into the tube, I read 0 ohms except one leg of this cable is reading 69 ohms. Don’t know if this is significant but I thought it was worth sharing. Fr…

At the X axis tube end connection I measure 1.9 ohms between the top row 2 pins (coil A), 1.9 ohms between the bottom row 2 pins (coil B) and no connection between the top row pins and bottom row pins. It’s worth noting there is a connector inside the tube about 8 inches from the stepper motor. Yo…

Hey all, I would say you don’t need to disassemble the plastic end caps nor to reach the connector inside the rail to find shorts between stepper wires and rails. If there is a short, you’ll measure it from outside. If there is none, the ohmic value measurements you reported of the motor coils is a…

You do not but in this case he’s measuring 69 ohms when 1.9 ohms would be expected on one coil which is an indication of a connection issue not a dead short. My suggestion is to reduce the circuit and test at the connector inside the tube to see if he has similar results which will narrow it down f…

Hey Derek, I did not understand where @eJohn measured the 69 ohms. The method I describe here to check for shorts to rails is what I would do before measuring the coils (given the fact that the motors operate) and this method does not require to disassemble something except unplugging the stepper …

I used the lowest setting on my digital multimeter. With both ends disconnected I read each lead from one plug to the other. Three of them had no resistance, or zero Ohms, but the forth lead read 69 Ohm. I have bypassed that whole cable and have dry run, Z axis set 1.00 above zero, for about an hour…

Random position shifts

Original/PRO Series (Buildbotics) (Gen 1) Controller (Buildbotics) Discussion

OnefinityCNC (Onefinity CNC Official ✅) December 7, 2022, 6:08pm 55

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Random position shifts

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