Figured it out.
I believe the PT100 wire gauge was too small to make a good contact in the connector.
It was good enough for resistance reading but not when things were powered up.
I seperated out the PT100 wires out and used a smaller JST plug and it's all working now.
Thanks for the patience.
@calvinx Welcome to today's world.
I'll just leave it there.
Just thought I would post to wrap up my problem and incase anyone else runs into the same issue.
I was using a Makerhive Yellow Jacket Quick Clip.
It seems like the gauge of the PT100 wires was too small. It made just enough contact for the resistance measurements, but failed when powered up.
When I routed the PT100 using a seperate JST plug, it all works correctly now.
@TwoTone David, after a good calibration, if nothing changes what do you think would cause the probe to not trigger.
We printed a pretty good layer test after a good calibration. See image.
The next night went to calibrate and on the first point it didn't trigger and pushed the hotend into the bed. Nothing had changed.
Ran a calibration again tonight, worked perfectly twice.
Tried a third time and same thing, first point didn't trigger.
Bed cold.
@dc42 Thanks again for all the support.
Worked perfectly with bed off.
@dc42 This is the bed heater.
Thk
@dc42 the commissioning went well. I noticed a large difference in the amount force of the tap needed to trigger it vs the first V3 I received.
@TwoTone David thanks again for the help.
Still having issue with the installed V4.
I can heat the hot end up, fan and LED running and no issue, the probe reading stays at 0.
When I started to heat the bed the probe would start fluctuating between 0-1000 stilling still in the homed position.
I double check all the wiring and the probe wiring wasn't running near any thing else that should cause interference.
Just to be sure, I ran new probe wires outside of the machine, away from any other wires and still have the issue.
Any thoughts?
@dc42 Thanks for the quick response.
@dc42 it's a v3. The vender chose to send another v3 replacement.
The bed is screwed in and then I have an AL heat spreader and glass plate which a just clipped to the bed.
@dc42 I received the new effector and had the same issue at stock sensitivity.
Lowered sensitivity to 30 and the first probe was perfect, kissed the bed and moved to the next point.
2nd point false triggered after only going down around 5 mm.
3rd point touched the bed, with very slight effector tilt.
4th point another false trigger.
5th point basically smashed the bed and I had to turn off the machine.
Seems really inconsistent.
I added the nylon spacers and I did notice a difference in how hard I had to hit it to trigger it.
But when doing the calibration, it still doesn't trigger until well after the entire assemble has starting tilting.
