Zaxis stall and flash card

[Dave D Jessa-Loop Designs]

I have recently been getting a z-axis Stall that happens at the same point no matter which project I am carving. The first thing I tried was reformatting the flash card and re-uploading the project. This allowed me to complete 2 signs before it went back to stalling at the same point. I clean the rails and lubricate regularly. At this point, I ordered and replaced the FFC cable. Still stalling. I had gotten a trojan virus on my computer that I used malware bytes to remove. there is no more trojan being detected, my computer still runs very slow. Some times when finding the bit, the z truck will move in a jerky fashion. Is it a corrupt flash card that needs to be replaced? or something worse? Any insight on this would help tremendously. I have a bunch of orders to get out and don't want to miss out on taking more orders this weekend. Thanks.

[fwharris]

The jerky motion could be dirty rails or bearings. You might also try reflashing the firmware and verify that you are running the most current version, check for updates. Verify that you do not have a cracked/torn FFC cable and that it is seated properly in the connection on the back of the Z truck.

[Dave D Jessa-Loop Designs]

I did reflash the firmware, replaced the FFC cable with new one yesterday. I have not updated to 1.188 still running 1.187. connections are good. rails are clean. bearings seem fine. ztruck test results A=79.68 M=201.58 moved smooth during that test.
I have two new flash cards on order and will ukpgrade the firmware to 1.188

[fwharris]

I did reflash the firmware, replaced the FFC cable with new one yesterday. I have not updated to 1.188 still running 1.187. connections are good. rails are clean. bearings seem fine. ztruck test results A=79.68 M=201.58 moved smooth during that test.
I have two new flash cards on order and will ukpgrade the firmware to 1.188

Okay, it sounds like you have checked/done a lot of the most common causes. I suggest doing the upgrade to the latest version of designer as that will have a new firmware version. Worth a try even before you get the new cards.

[Dave D Jessa-Loop Designs]

I will give it a try. i think my card got corrupted from computer virus.

[Dave D Jessa-Loop Designs]

After Upgrading to 1.188, still stopping in the same spot z axis stall. I will hope then new memory card will do the trick.