Print problems

[fma]

Also check the FET maximum current!

[roberlin]

Yeah, 30 amps through the azteeg seems like a no-go.
And I think I am too lazy to build an amp.

[brnrd]

At 24V, your main concern would be heat. Most PCB material can only work at sustained temperature to around 120C or so. I'm not sure what the Helios PCB is rated but I'm guessing that 200C is beyond that. As long as your thermistor, the electronics and the fw are working right, then 24V should be fine. But if not and it runs at that high temperature for a long time, I would guess that your board will start to degrade.

[enmity]

I was running 24v and didn't see any issues with the heated bed warping or becoming damaged hitting 200c, I had to switch to 12v when my 24v power supply started smoking. The only difference I can see is the heat bed takes alot longer to heat up about 15 minutes as opposed to about 8 with the 24v. I've been having issues with the thermistor on the extruder what happens is when its been printing for more than a couple of hours the temp stays stuck at 160c even though the nozzle is cool to the touch. I had to disconnect the thermistor from the azteeg, check the temp, and re install which seems to fix it for a while. I checked with a thermocouple and the temp is correct when it reaches 230c which is just weird.

[brnrd]

How did you know that your bed was at 200C? What did you measure the temperature with?

[enmity]

I had to take it to work and use the thermal imager's we use to do heat break down testing and it was getting to the 200c. I also took my multi-meter that I was using to do temp testing to see if that was also off but it was within 1 deg c at 150c. I've been inspecting the heated build plate and it seems that I've definitly damaged it, the ENIG plating is changing colors and the traces are wavey but still flat overall.