VC4 300 unenclosed (just back panel)
Have had some issues trying to get the printer to have a semi decent graph on the resonance test. Keep having issues with unsynced resonance and split tips.
Ive leveled the gantry a few times and made sure that the y rails are decently in the middle of the extrusions
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im just gonna include a few ones here to not bog down the thread but this one was before the latest realignment.
I loosened the belts a bit and aligned em with the back of the machine by tightening/loosening the belts. After which i aligned one of the z rails as noted in another thread i saw here.
Im starting to think that one of my belts is longer than the other (i thought i confirmed that they were in fact the same but now im unsure) Am i right in thinking that the lower belt might be a tad longer?
I checked the gantry alignment after this below test just to try and confirm that it was still leveled and it looked like it was
thought id include some shaper graphs in they give any more info to anyone
ran the test again after the shaper graphs and got a different result
I then tried loosening the top belt one tooth and realigned the gantry
which resulted in this
after more fiddling this is where ive ended up for now
should have left thing well enough alone but back we are just had to fix a few small things.
Now it looks like this again.
left image after aligning. Right tensioning a quarter turn
tensioned a quarter more and ended up with this
loosened slightly and realigned the gantry
loosened a bit more
the gantry is square against the back correct? If so you can try aligning one of the y rails to see if its binding. Thats what solved the last bit of my problem as something was binding and dampening one of my belts and causing some strange noise elsewhere. How I did this was loosened my lef Y rail, leaving the belts fully tensioned. Once it was loose I pushed the gantry all the way against the y endstop and loosely tightened the first screw. I then moved the gantry all the way to the back and carefuly brought it back to the front and then left it slighty in front of the 2nd screw. I then used a torque screw driver to fully tighten the first screw and then did the 2nd screw and kept moving the gantry out and tightened a single screw at a time until I was done. That cleared up the last bit of my problems
hmm did that before which was what got me the second spike back. Might just do it again if i cant figure anything else out
swapped the rail guide.
looks a bit better
progress
