MINTEMP BED/MAXTEMP Errors
I'm getting multiple failures of the printer - first one was thermal runaway, next MINTEMP BED, now MAXTEMP. I've checked connections to the controller board, hotend, etc. I'm getting very disillusioned with this printer, I get more print failures than successes.
Any ideas what is going wrong?
Regards,
Trevor
Re: MINTEMP BED/MAXTEMP Errors
Cable break at the heatbed or bad connection of the plug in the RAMBo box.
Cable breaks in general.
Thomas
Re: MINTEMP BED/MAXTEMP Errors
Thanks for the response.
Latest update. I've checked the connections to the Rambo board and they appear fine, pre-heat works properly with bed and hotend getting up to temperature. Managed to get the XYZ - calibration routine completed again and tried to print the calibration test print however what I'm seeing is the printer go through the pre-print calibration process, the head moves back to point 1 and then everything stops, screen shows 'Prusa i3 Mk2 Ready' and the bed and hotend start to cool down.
Tried a different set of gcodes and the same process happens.
Firmware is updated to latest version.
Trevor
Re: MINTEMP BED/MAXTEMP Errors
Does it happen at a specific temp?
Had a similar problem and it seems was a couple of issues at once. Bed sensor was not working 100%, original bed PID was not ideal.
Cables used for the bed are not the best choice, switched to 16AWG silicone multistrand wire and also added a 6mm cork under the bed to keep the temp there. Last but not least this to me was happening on high bed temps. and it was 100% sure to happen if a minor ABS, Z-Ultrat part was printed close to the sensor position.
After the above changes i saw a brighter heat LED, faster temps on the bed and easier to maintain temp.
If i had to print small part i would choose some corner and also an enclosure.