cedar turtle
Hi. I had pretty fine for me 0.121 variation, but trying to fix my belt tension I:
Before my bed mesh was looking like so:
No I have this:
Before there was no such lake in the middle
So the real question, is there chance that I managed to bend 6mm aluminium bed by print head, or this changes in bed mesh are rather caused by other factors?
Did I bent the bed? (300mm)
heavy void
I think its easy enough to check. If you have an engineers square, or something else thats reliably straight you should be able to push a 0.2mm feeler gauge under it in the middle of the bed.
I doubt thats the case. I think its more likely that the little accident offset the gantry in the middle due to the crash.
cedar turtle
I think its easy enough to check. If you have an engineers square, or something ...
the bed has heater and PEI sheet on it... Dont think that this would work
heavy void
What I would do if I were you is loosen all the bolts on the gantry rail, except 1 in the end. Move the printhead close to the second screw, tighten it, move to the third, tighten it, etc all the way to the end. Then test the mesh again
heavy void
the bed has heater and PEI sheet on it... Dont think that this would work
if the probe can measure 0.2mm variance, so can you, as long as your square is long enough to go across the bed
cedar turtle
I will try. Though I have a problem... I managed to damage several screws on Y axes, which made then unscruwable...
cedar turtle
if the probe can measure 0.2mm variance, so can you, as long as your square is l...
got it. will try
heavy void
shine your phone's flashlight behind the square you should also see the light come through in the middle
you might have to hold it on an edge for that though
cedar turtle
okay, will try. Any suggestion how to unscrew screw with broken head?)
heavy void
what is broken?
cedar turtle
I managed to damage "head" of the several m3 screws by screwdriver, which hold mgn12 Y rails
I tried to unscrew them already, with no luck
heavy void
can you make a few pics?
if you bent screws you may have crashed it harder than I imagined
i need to walk the dog .... 😉
hes getting impatient and commanding me with earpiercing barks haha
cedar turtle
cedar turtle
i need to walk the dog .... 😉
have a good walk😉
cedar turtle
if you bent screws you may have crashed it harder than I imagined
No, I mean that I fasten screws a bit too much before, and damaged hexagon hole in them
But it is different question unrelated to the mech, so, thank you for your time
Will try to unscrew them somehow and realign rails
cedar turtle
I managed to unscrew and reattach x rail, and got this:
Which is far from perfect, but better
Probably I will stay with it, because unscrewing y rails would be a nightmare (around 6 stuck screws)
Maybe though I will follow vidio and will try to lower/rise one of the corners to fix this red bump
dense hedge
So the real question, is there chance that I managed to bend 6mm aluminium bed b...
No... No chance of that really... More likely you bent your gantry and it now has a slight upward bow
cedar turtle
No... No chance of that really... More likely you bent your gantry and it now...
Thank you. Got it
heavy void
0.16mm variance is really not bad and if you use https://github.com/HelgeKeck/pam it will be perfect for smaller prints. Also, it might get a little better when its all warmed up
