X Y slipping skipping or other

in the love hate relationship with my vcore 500 a new problem occur:
i was trying to print the square tower of the pressure advance calibration protocol when i notice i was regularly shifting in diagonal.
i don't understand as i heard no noise from the motors, the grub screw are real tight and the belt tension seems fine ( can deflect to the point of touching the other when pinched, but don't flop ) i had done a frequency test: see pictures
and now i notice one of the belt is quite mangled and it as worked for like 1 h top... i have moved the gantry by hand before to feel any grab or anything and it was fine, i did checked because after initial install i had a belt slipping onto the edge of one of the guide bearing causing a bad grabbing so i re-did all the belt install . had it deformed the belt ? ( i heard that it was not so rare)
i wrote this post because i would like to found the cause of the problem so it doesn't show up latter.
i will had pic of the belt as i unbolt everything

lillianOP•6/27/23, 1:20 PM

redoing all the motors cages i found out that the lower belt drived by th right motor want to run over the shoulder of the bearing every now and then so i checked the height of the motor pulley and it was as instructed but i tried to lower it as it want to go up .... it seems to have done it the belt stay at is place but i still got a consistent layer shifting

lillianOP•6/28/23, 9:58 AM

Anyone can tell what could cause this kind of layer shifting they are really uniforms and no motors skip

lillianOP•6/28/23, 10:01 AM

I think it is caused by the drag of the filaments as i swithed side for the older the way of the shifting change too but it is not normal for the printer to shift with so low force applied to it

lillianOP•6/29/23, 8:32 AM

i am still working on this problem and now one of my motors gave me this error TMC 'stepper_x' reports error: DRV_STATUS: c0130090 s2vsa=1(ShortToSupply_A!) olb=1(OpenLoad_B!) cs_actual=19 stealth=1 stst=1

lillianOP•6/29/23, 9:00 AM

i checked the wiring everything seems good so that indicate a defect to the driver ?

lillianOP•6/29/23, 9:10 AM

now the printer is skipping like crazy

standard-azure•6/29/23, 9:45 AM

First of all, you're grossly overextruding, you should calibrate extrusion before going after pressure advance.

lillianOP•6/29/23, 9:50 AM

nope just checked when told to do 100mm a 100mm went out

lillianOP•6/29/23, 9:51 AM

the first pick look gross beacause of a recycled petg filament that i don't get to work on any printer

standard-azure•6/29/23, 9:52 AM

Good, but after that you should set up extrusion multiplier by observing printed test parts

standard-azure•6/29/23, 9:53 AM

Your top layer is bulging a lot, which suggests you should extrude less.

lillianOP•6/29/23, 9:53 AM

ok is there any reference test to do when my printer is up and running again ?

lillianOP•6/29/23, 9:53 AM

yeah i see what you are saying

standard-azure•6/29/23, 9:55 AM

https://youtu.be/rp3r921DBGI?t=504

YouTubeTeaching Tech

3D printer calibration revolutionised - Step by step to better prin...

This started with a request by my Patron magruder13: make an all in one calibration video to avoid needing to go through multiple old videos. Rather than just rehash into one video, I’ve gone a lot further:

https://teachingtechyt.github.io/calibration.html

UPDATE: This site has received a major update. https://youtu.be/9kDK7czgMxc

Say goodbye...

lillianOP•6/29/23, 9:56 AM

but for now i can't even home the printer it is skipping like crazy

lillianOP•6/29/23, 9:56 AM

and i don't understand why

standard-azure•6/29/23, 9:57 AM

stealth=1 stst=1 are you using stealth chop? Try disabling it!

lillianOP•6/29/23, 9:58 AM

i don't know what this is so unless it come std on it no

lillianOP•6/29/23, 9:58 AM

i read about it on some forum but as i sure not enable it i overlooked it

standard-azure•6/29/23, 10:01 AM

I think it's default for standard setup, performance disables it, but it requires active cooling for steppers

standard-azure•6/29/23, 10:02 AM

"c0130090 s2vsa=1(ShortToSupply_A!) " usually means bad or faulty wiring, you said you checked it, did you check the connector?

standard-azure•6/29/23, 10:03 AM

If you're suspecting driver, you can switch it with extruder's driver and see if it will work

lillianOP•6/29/23, 10:03 AM

yeah all pin are in and no wiggle

lillianOP•6/29/23, 10:04 AM

i will unplug all and check continuity with a multy meter

lillianOP•6/29/23, 10:11 AM

all 4 wires have good continuity from one plug to the other

lillianOP•6/29/23, 10:18 AM

how do i disable stealthchop to go to spreadcycle mod ? : i quote klipper 3d "It is recommended to always use "spreadCycle" mode (by not specifying stealthchop_threshold) or to always use "stealthChop" mode (by setting stealthchop_threshold to 999999)" i go in overide and wrote a stealthchop treshold=0?

standard-azure•6/29/23, 10:28 AM

Yes

[tmc2209 stepper_x]
stealthchop_threshold: 0

[tmc2209 stepper_y]
stealthchop_threshold: 0

lillianOP•6/29/23, 10:36 AM

yep fixed the skipping

lillianOP•6/29/23, 10:37 AM

... hate prog man you look for 1 h a the hardware because of the sound of it and 2 line of code make it go away ...

lillianOP•6/29/23, 10:38 AM

anyway thanks that one part of the problem done i will try to reprint something and see if the shifting is still there

standard-azure•6/30/23, 7:07 AM

To be honest, it shouldn't have fixed. There's probably excessive movement resistance. Probably belt is binding somewhere or you overtightened one or several bearings.

lillianOP•6/30/23, 7:48 PM

it doesnt have much resistance moving it by hand

X Y slipping skipping or other

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