I've just installed a new 12 V hotend for my Prusa i3 MK8. So, now the new hotend can't achieve temperatures above 190-200 °C and it takes about 30 minutes to achieve 200 °C. The thermistor and heating element both touch the hotend securely. The heating element gets 12 V all the time. PID changes don't seem to affect anything. Can it be fixed or do I have to change the hotend?

  • 1
    $\begingroup$ If the MK8 is a typographical error and should be MK3. Prusa MK3 printers are 24v. Confusing the issue is that you've noted you measured 12v (?) which implies it's a different model than a MK3. $\endgroup$
    – fred_dot_u
    Commented Oct 22, 2022 at 18:55
  • $\begingroup$ Have you installed a 24V heater cartridge into a 12V printer? That will turn a 40W heater into a 10W heater, $\endgroup$
    – Mick
    Commented Oct 24, 2022 at 10:50


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