tinkergnome 927
2 hours ago, noctis said:manual readings are 43,8k for the Extruder and 117,5k Ohm for the custom heated bed.
If I check the temperature in Cura it says 1100°C for the Bed and 0°CV for the head.
The MINTEMP error is normal is it reads 0°C or less on the nozzle.
UMO+ uses the same mainboard as the UM2 and this works with PT100 temperature sensors, is this right?
But the resistance would be somewhere between 100 and 200 Ohm in this case (not kOhm).
I guess you are using something different, but then it's not an UMO+... ?
2 hours ago, noctis said:I assumed the Arduino has a problem, but I changed that already.
You said " modified UMO+ " - what does this mean? Which kind of mainboard is used and which type of sensors?
And which kind of firmware is installed on the (new?) board - is it modified too?
And does the configured sensor type match the actually used sensor type?
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gr5 2,224
Well the mintemp is probably normal. The printer won't extrude when the head is cold so it's probably cold.
If you go into the menu where you control the head and bed temperatures what temperatures does it display? Is it readying room temperature? (around 20C).
So far the only problem I see is that the printer head only moves one direction during homing. It could be the limit switch is not reachable anymore.
Some things to try:
Try pushing the head around and see if it hits all 4 XY homing switches. Listen for the clicks.
Try putting the head in the middle, put your finger on the home switch, start homing and push the switch twice quickly (and get your hand out of there). If things are working it should stop moving towards that homing switch.
Take a video of the homing event so I can see what you mean by "moves only in one direction" (is it X? is it Y? Does it make the horrible sound? Does it make any unusualy sounds? Does it move too slow? Is it erratic (belt slipping)? A video will tell me a lot).
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