Hello Daggs,
What is the wattage of your power supply? it could be underpowered.
What is the resistance of your heated bed, it might be too high of a resistance.
Here are some resistances for reference, if you have a multimeter it would be a worthwhile check:
[reprap.org]
It's strange that an aluminium bed would take that long? Unless the aluminium heated bed in theory would have a higher thermal conductivity than a PCB heated bed, which could explain why even with a insulated aluminium bed, it
takes longer to heat to 100degrees compared to a insulated PCB bed because the conductivity actually dissipates heat better? For comparison, it takes roughly 8 minutes to heat up to 100 with a glass plate on, for my printer.
Is the Z min endstop held on a clamp on the Z threaded rod? such that you can slide it up and down as a "rough" endstop adjustment (not suggesting this is the solution).
Regards,
DennyP
What is the wattage of your power supply? it could be underpowered.
What is the resistance of your heated bed, it might be too high of a resistance.
Here are some resistances for reference, if you have a multimeter it would be a worthwhile check:
[reprap.org]
It's strange that an aluminium bed would take that long? Unless the aluminium heated bed in theory would have a higher thermal conductivity than a PCB heated bed, which could explain why even with a insulated aluminium bed, it
takes longer to heat to 100degrees compared to a insulated PCB bed because the conductivity actually dissipates heat better? For comparison, it takes roughly 8 minutes to heat up to 100 with a glass plate on, for my printer.
Is the Z min endstop held on a clamp on the Z threaded rod? such that you can slide it up and down as a "rough" endstop adjustment (not suggesting this is the solution).
Regards,
DennyP