Okay, these are my boards and power supply for a kit printer that I bought. I realize that it was probably ill advised, but I’m enjoying playing with it and setting it up and everything as much as I’ve ever imagined myself enjoying a bunch of little plastic things, so I’m not upset or anything, and I’m actually looking forward to pulling out the meter and testing things, but I thought I’d ask here first before I got too far into it.
I tried twice to do a sample print, but on the first one the extruder didn’t ever heat up enough and on the second attempt the whole thing powered off suddenly and without warning. The red flea light on the white board still comes on, so there’s some amount of power somewhere although that doesn’t tell me if there’s enough. Any troubleshooting advice from anyone here?
Be warned. Using a 12volt heatbed will melt and burn the fuses on that thing. It just don’t support the current.
I had a 200mm diameter pcb heater (coils was about 190mm) on a delta. Caught it just in time to find it smoking while heating the bed. If you are not doing a heatbed it should be fine.
It is the 2 surface mount clip in fuses next to the power socket. The traces and the holder are not properly sized which causes excessive heating when passing large currents. They eventually get really hot and start smoking. The fuse for the hotend is fine as it is low current but the bed fuse is poor design. You could maybe use a bent leg blade fuse and replace the current fuse holder entirely but this means soldering work of course ( if you need the heatbed )
