Depression on bed corner - Vcore4 500 hybrid
Hello I've been watching videos on how to address gantry racking and similar but can't get rid of this depression on the back left corner.
I'm printing large ASA parts touching exactly that area and it seems for that reason they warp and come off, specifically there.
I am running the latest updated RatOS, did beacon calibration with bed at 110C and also added scan mesh compensation as per github. Scan compensation doesn't seem to fix completely that depression.
First layers in general come out fine it seems, but that defect screws up my variance and I'd love to fix it. Is it worth messing with the frame at this point ? I am afraid that lowering one corner as shown in the guide and videos could rise the right one.
I applied the gantry alignment techniques in the guide and both parts touch at the same time. Also, get results with lots of ringing, maybe it is related to some belt path ? I controlled them and I don't know what else I can do....
6 Replies
I had something similar. I loosened the couplers on that corner and a couple of upward taps with a deadblow hammer and it came flat.
But first adjust the leveling feet. A 500 is big enough to bow with all four flat, but unequal pressure.
which couplers did you loosen exactly ? Shouldn't I loosen instead the quick connectors of the two corner extrusions ? the guide mentions that:
Should I loosen the quick connectors of the central back extrusion as well ? I think in a suggested video they do that buut I don't want to screw up all the work done so far...
I just did the red ones. But do the feet adjustment first. Literally adjust one and see what happens. Once you know how that affects things, you can make an informed decision about adjusting the other feet.
It sounds stupid, but I saw another printer get fixed just from one foot adjustment. Dude was stunned
honestly I don't know how I could adjust the feet. It's also complicated by the 55 kilos of the printer now. What's the rationale behind the feet adjustment and how wouuld that affect that depression on the corner ? Are you suggesting to empirically tighten or looosen the back left foot or..?
Undo the lock nut, lift the corner enough to be able to spin the foot, rotate it one full revolution, direction doesn't matter, then re scan.
If the mesh got better, go some more in that direction
If the mesh got worse, go the other way
I& nothing changed try another foot.
Basically the printer is big and heavy enough, that the feet don't just affect the level (as in a bubble level on the frame), they can skew it.
It's like belt tension, but for the extrusions