Hi, some news:
I found a post where the following maslow.yaml-lines were described:
Maslow_tlZ: 100.000000
Maslow_trZ: 56.000000
Maslow_blZ: 34.000000
Maslow_brZ: 78.000000
They are about the z-distance from the ancor to the sled. I found out, there are 19mm for the plywood.
My ancors are at the same z-level as the sled, so I go 20mm down:
Maslow_tlZ: 80.000000
Maslow_trZ: 36.000000
Maslow_blZ: 14.000000
Maslow_brZ: 58.000000
I although set the retraction force to 2000 (I know, that´s a bit tough).
And now it´s working! All belts are tight when jogging. I will write again after the first cut!
Glad it seems to be working; however, +/-5mm on tensioning is a very large amount. I didn’t have this issue but from research it points to the encoders not accurately reading the belt movement. It should be sub 1mm ideally. This could be caused by magnets that aren’t glued down in the encoder arm, or potentially encoder cables that are intermittently losing connection. I solved a lot of issues with glued down cables, and switching to the JST kit soon.
Someone else can chime in as well, but the machine is set to flag anything outside of 15mm from what it expects, so it will go on with any cable deviation under that which will still cause some issues. I’d imagine inaccurate encoder readings while calibrating will also screw things up.
I’m seeing the same issues with JST running .79 version. I’m attempting again but it seems the bottom right belt is a bit more slack than others and when plotting a straight line it sort of bounces. And center point deviation is also about 8mm for the bottom right on start up. (I rand multiple calibrations.)
Update:
I recalibrate with .84 and center point deviation was 6mm for bottom right.
I opened we up to check the magnet on bottom right to see if our of place or spinning. All looked good.
Put it back together and swapped the BR motor and the TR motor. To see if it is a bad motor. Outcome was the same after running calibration. Infact it does this little bounce during calibration.
I’m at a loss. After calibration I was seeing center point dev for BR is 3.7 and BL -3.13
Good news. It’s fixed! After taking it all apart I found the issue was indeed with the magnets. I had checked this before but must have missed it or got a false positive. Who knows. It’s working now. Glued down well and seated properly.
Though I’m still having some issues with the plunge or even ramp down when initiating a cut. Have you or anyone run into this? I noticed my bottom right belt is not as tight as my others.
As someone who builds cars and motorcycles, I’ve found that if you’re not familiar with working on something, you’re doomed to repeat the job until you get it right! I’m now a pro at dismantling the Maslow for that exact reason. This time the set screw from a gear popped out and I won’t forget to make sure they are tight now. So it goes.
Gosh isn’t that the truth with any maintenance.
This is a very timely reminder on top of reminders I should know well by now. I’m re reading “Zen and the art of motorcycle maintenance”. Can’t recommend enough for many reasons.
