gr5
gr5
Actually I think it's more likely to be only one bad bit so probably it would move 10,20,40,80cm. Definitely not 15cm. You said it happens when "retraction is supposed to...
If you are right, then doing a factory reset will fix this. It fixes those eeprom values. Basically as long as you upgrade marlin from an older version to a...
The problem is a bad bit in the ascii gcode. So there will be something like G1 X123.455 Y93.212 E777.111 7 is an ascii 55 but more importantly the last...
It's more likely to be in the circuit board that holds the SD card. Or maybe a cross talk problem with the 2 ribbon cables (how they are routed -...
If you remove that "sd" card board (probably called the "display" board) then there is a trick to get the knob off - you can push it off from behind...
I've seen this on most of my UM2 printers - I've never printed through USB so it's only been through printing from SD card. What happens is it's getting read...
Once it happens once or twice per hour of printing it's much too excessive and time to repair that printer. But all my printers have done it occasionally - e.g....
It's not a pause. It's a pause in the "song" of 3d printing but it's not a pause - it's a massive retract. The problem is that bytes change. And...
The problem is frustratingly difficult to diagnose. I kept notes and the one key thing was cleaning out the SD card slot. I know for sure there are bad bits....
Before the cleaning I tried moving the ribbon cables, changing SD cards. The cleaning was the first thing that made a difference.