bed flat/even but bed mash shows different
Hi hope hope anyone can help menwit an idea what the reason could be . Ratrig 3.1 400 Ratos 2.1 with beacon . I installed a new images set all up calibrated the beacon bed mash around 0.3 ( see picture) after some testprints i played a bit around with the bed mashed and get from one mash to the next 1,2mm but in an angle from front to back . checked multiple times allwas around that result . i checked the distances nozzle bed in all corners and all the same the the shown bedmash is wrong . i recalibrated the beacon a few times allways the same result . tried a print one side in air one side nearly milled into the plate . i habe no idea anymore what else i can try only changes on the beacon i did was changing the offset to 30 ( also changes back no difference) and to invrease the ponts in xand y . I realy hope on someone with an idea
BR Thomas
14 Replies
have you run z-tilt?
every time , and for a try i also did without it no changes
I'f you've run z-tilt successfully then gotten a bed mesh at that angle, that is freakin WEIRD
yep thats my trouble , it fully makes no sense , like i wrote i also took a 1 mm sheet metql and set the nozzle to 1mm than checked all corners all the nozzle is in a +-0.1mm range to z tilt is working the plat is even to the nozzle but the beacon is measure that wirred mash ,
When you try to print do you have problems with the first layer front to back?
front in air back nearly milling into the plate
@blacksmithforlife You got any ideas? I've never heard of this and not finding anything on a few searches
@Luchador can you upload your debug.zip?
That second image definitely looks like a z-tilt issue
is the cable pulling at the front and then as it moves toward the back the cable has more slack and thus the angle of the beacon is changing?
I wouldn't expect that to smoothly change the distance, feel like there would be a "step" in the reading once the cable went taut. and according Luchador's measuring with some sheet metal the z-tilt is working; the bed is trammed, it's just the mesh that is failing and in such a consistent way.
Just tossing an idea, could be a step as the gantry moves further back that pulls slightly more on the beacon to cause this. Giving you a "smooth" transition as each -Y movement pulls on the beacon more
But again, how would the z-tilt be successful but not the bed mesh in that case?
Doesn't V-tilt actually contact the build surface? while meshing uses the eddy-current?
I guess I've never really paid all that much attention during either motion
Hm, I'm not sure. If that is true then the theorized tilting of the beacon could be the culprit. I thought contact was only for initial calibration but I could easily be wrong
i can upload the zip and a video of making a mash tomorrow evening , today i cant get to the printer anymore