Hello and good morning,
I am a newbie and play with K8200 now for a few weeks collecting experience. In general I am amazed with this nice product!
After a period of well printed objects I discover a problem with the bed-temperature that is shown in repetier host:
at 19° it shows 31.4° (extruder temp shows correct 18.8°)
when disconnected it shows 24°, when short-circuited it shows 761°
I switched the cables of both NTCs at the board but still the same effect. The extruder temp works as expected, but the bed-temp brings false values.
I measured the NTC (at the end of the wire) and it shows ~110K at 19° so I suppose that is not the problem.
Has anyone an idea what to do?
btw: where do I find instructions to upgrade Marlin? I looked at velleman h/p and K8200.eu but with no success.
Thanks in advance, Mike