I get the same issue too. After about 2 - 3 hours into a print, I can no longer connect to the duet. It's dropped off my network.
I've tried the "reboot the router" trick to no avail.
As I don't have a screen, I just have to keep an eye on it until its done. So far, each print has finished without issue, but it's a bit annoying when I want to see how long a print has got left.
@st3phen said in Generating Z Offset for BLTouch on Gecko CoreXY:
But, I still have no idea what to set as my Z Offset.
Use the average value of your G30 S-1 results. Around 0.915 ish. You can use the A and S parameters in M558 to increase the stringency of the deviation so that it will probe multiple times until it gets two probings as close together as you specify. That should help reject the large outliers.
then you can use actual print first layer to dial in the height with baby stepping.
It might also be worth replacing the probe.
I followed some advice from here and got some results to report for reference:
Switching to a zero-crossing from random-crossing SSR did not visibly affect the light flicker issue.
Switching from bang-bang mode to PID at the bed heater did not affect the horizontal banding issue.
I was able to further tune the PID and keep light flicker to a minimum.
The Z axes construction was worse than I expected. I could measure +/-50% variation every Z motor revolution with just a basic electronic caliper. Apparently the Z screw rods were misaligned so just a little rod bend was being exaggerated.
The weight of the bed was high enough to press the Z stepper rotor downwards on high acceleration moves (this obviously depends on its construction), so I added some flange bearings at the bottom.
The Z smooth rods were not really smooth in the Z direction and needed some 800 or more grit sanding.
I remodeled and fitted bigger, bulkier variants of all brackets, couplings, etc on the Z axis.
Now after improving 2 out of 4 Z axes the banding is nearly gone!
Awesome. After adding the 1:1 mixing ratio both motors turn.
Great possibility that G1 E10:0/E0:10 to control which motor turns, allthough it might come more handy later to create those extra axes.
Now it looks all set up to get stuck with some other kind of problems than the configuring
Looks like your connection to Duet3D was lost, please wait while we try to reconnect.