3D Printing Asked by Rosalie W on December 1, 2020
I am converting an old Makerbot Replicator 2 to Marlin Firmware and everything works. The printer heats up, auto bed levels, and starts the print. However, after a couple minutes (usually after the 1st or 2nd layer), the printer crashes and stops. It does not continue printing and I have to restart it again. It crashed for every single print, I have not had any successful prints yet.
Here is a video showing the issue:
The camera was started right when the print started. After about 1.5 minutes, the printer crashes, and the lcd screen freezes.
Here are photos of a couple of prints that crashed:
I have all of my code here: https://github.com/RosalieWessels/Marlin_MakerbotReplicator2
My models are sliced with Cura and printed in PLA.
I tried hotend temperatures of 200, 210, and 220 degrees. My print speed is around 50 or 60 mm/s.
Here is a sample sliced file that was used:
https://filebin.net/df33a3jjwgemz0m8
Thank you!
I see a couple likely culprits for a hardcrash like this
Answered by Trish on December 1, 2020
Few things to try,
Check G-Code - Verify that the slicer is not the problem, slice using some other program / make a new default profile and re-slice.
3D File - Also In parallel with the above point, I would get a standard test cube STL to start with. This will be a simple quick print to get a solid reference.
Voltages - Get a Multi-meter on the Regulated Voltage rails, 5V Rail, 12V rail / 24V rail. See if at the moment of crash a voltage rail collapse, the most likely one would be the microcontroller rail, but you may be able to see the problem somewhere else.
Current - If possible, measure the current draw of the printer either from the mains or after the AC/DC regulator. Its possible something is going horribly wrong and current limiting.
Serial Port - Possibly connect the printer to a PC via its serial port and open a com port. See if the printer spits out an error code at the time of crash?
End Stops - Double check that none of the End Stops are accidently being triggered (Although this should not crash the system, it might be part of the problem)
Verify Sensor Readings - Check all end stops, check the bed temperature readings, check the nozzle temperature reading. Maybe a sensor has failed and is causing the controller to crash out.
Answered by Jack Soldano on December 1, 2020
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