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On my i3 clone I've been trying to add the Anycubic i3 Ultrabase to my RAMPS 1.4 board and after adding the necessary configurations in the Marlin firmware I can heat up the bed. The issue is that it is very slow - it gains about 1 °C every 20-30 seconds - and the indicator LED and LED 2 on my RAMPS board blinks randomly whilst it is heating. Furthermore when the LCD is powered from the printer it starts flickering too. I'm guessing this is a power issue, especially since when I plug it directly into a power source (instead of a splitter) the LED blinks less often and if I unplug the bed but 'turn it on' the LED is solid, but I'm not sure what can be done.

Upon further inspection - the voltage input to the board is a constant 12 V however the output from D8 is ranging from 5 V to 12 V and fluctuating rapidly.

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  • $\begingroup$ I think I may have fixed it by doing a PID autotune, the numbers were drastically different - makes sense why it was so slow. $\endgroup$ – Cowmanroo May 12 at 20:46
  • $\begingroup$ Please add an answer in the answer section, the comment section should not be used for answering questions. Be more descriptive what you precisely did and what the results are. It is perfectly fine to answer your own question, you can even accept it after 48 hours. This way, others facing similar problems may learn from your question and vote up the answer. Please take the tour. Thanks! $\endgroup$ – 0scar May 13 at 8:55

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