The circuit can handle 2.5A, so when supplied from VIN higher currents can be switched. the 12V limitation is based on the on board power supply. Obviously the lower limit of the two applies for 12V, that applies to any pins that are set to use the on board 12V supply.

Hi Joshua, please use the forum (forum.duet3d.com) for support questions.

Yes it does.

Bed heater (up to 18A1), 2 x extruder heater (up to 6A each), also 15A for bed, 7.5A for stepper drivers and extruder heaters, 1A for fans.

Please see: Duet 2 WiFi/Ethernet Hardware Overview

Please check out: https://www.duet3d.com/GenuineResellers

Some of our resellers have them already and others will be getting stock soon.

As long as it does not interfere with the pins that the SBC <-> pi interfaces uses it should be fine.

Thanks, fixed that.

Hi Sean, yes for a thermistor T1 is paired with T2 and T3 is paired with T4 using the jumpers so its effectively a 2 wire connection. check continuity between T2/T3 and the Duet. If you still have an issue please use the forum for support:

forum.duet3d.com

not in the object model, and please use the forum for support questions, thanks.