What is happening towards the y axis?

[plush mason]

Restored our Cr-10 s4 after being unused since 2020 but when i started a print to test this happened twice and im not sure what is going on here it’s moving towards the y axis.

I used orcaslicer printed from sd card and the hotend is stock creality with direct drive, bullseye and dual 5015 for cooling if that helps.

[manic sorrel]

That looks like either the stepper motor loosing steps/skipping (either dud or vref too low) or your belt tension on which axis is layer shift is loose (tighten your belts)

[plush mason]

Sorry late response its on the y axis and I’ve already ordered a new y axis motor/linear rails to switch it instead of v wheels on the y axis.

As for the dud or vref too low what do you mean by that is it firmware? Used to print without issues back before it got abandoned haven’t modified anything software now after restoration still the same as before.

[manic sorrel]

If its the stock board, its physical, adjusting the vref via the potentiometer in the board, if its the newer ones, you can adjust it via software, but yeah other issue might include mechanical issue

[violet gate]

Belt tension

[manic sorrel]

Most likely

[plush mason]

Back then did a swap to a skr mini e3 v2 running marlin, as for the belt did tighten it issue still occurred unfortunately

[manic sorrel]

I see, then it's either vref or vrollers needs adjustment/bent frame

[plush mason]

Y axis extrusions bent?

[manic sorrel]

A possibility yeah, or it's just a case of worn v rollers or just out of adjustment

[plush mason]

Im changing to linear rails as I’ve noticed the wheels some of them were not touching and after adjusting them they also returned to not touching so assumed it was the wheels being bad?

[manic sorrel]

Not technically bad, prob out of adjustment, the eccentric nut would fix it, if it's worn, no matter how much you turn the nut, it won't make contact (or bearings making the crunchy sound)

[plush mason]

Did adjust them but tried to print after and it still failed then checked them again and some stopped making contact again not sure why

[manic sorrel]

Huh, sounds like the nylon nut securing the eccentric nut is worn causing it to turn over time

Or uneven wear on the v roller

Or yeah, bent frame

[plush mason]

Wouldn’t think its the wheels as i did replace them had a set of new ones but ill check if the frame sits flat today hopefully would be visible.

wheels will be replaced with 4 linear rails and 8 carriages instead just waiting them to arrive

[violet gate]

Thr powersupplys suck hard on the cr10 maybe it degraded. Or you have to high acceleration. The s4 printbed is quite a mass to move

[manic sorrel]

Yeah that too, had a dude who has an issue with their psu (specifically the caps) bulging

[manic sorrel]

Although he did stated it works before , it only happened after a long storage

[violet gate]

Degradation happens over time usage just accelerates it.

[manic sorrel]

Yeah, although that much layer shifting is nuts for just 4years of storage (assuming its stored in an ideal condition)

Prob yeah, prob need to visit every motion components, and of the psu (till then, lower accels and jerk settings)

[plush mason]

Sorry forgot to show This is a pic after adjusting the belt and v wheels

I never thought psu would be an issue everything works like it did before neither the x or z axis have issues only Y

[violet gate]

How fast are you printing and can you take some pic of your printer? Maybe i spot something

[plush mason]

hey heres my speeds im using a cr-10 v2 profile as there's no cr-10s haven't changed the speeds just bed size and temps in it

as for printer pictures ill send tomorrow as printer is at work and I've left if u have specific area to show would be better currently bed is taken apart still

[violet gate]

Yeah no wonder you can try 250 acceleration of you are lucky

[plush mason]

Its going good

Still doing linear rails as the extrusion is kindof bent but thank you

It seems to be going good

Cleaned and lubed the pulley also found it to be tough to spin

[violet gate]

glad iit works now 🙂

[plush mason]

All looks good so far but i assume this is underextrusion?

[violet gate]

at first glance id say you are a bit too cold

[plush mason]

Ah really thought i was a little too hot first layer is 220 and rest 210

km guessing go up to 230 would be good?

[violet gate]

yes but dont lower the temp

it doesnt save a lot and youll only get issues

[plush mason]

Have done a temp tower now but 180 failed so stopped it

[violet gate]

Not surprising with 190 beeing the lowest for pla

[obsidian oracle]

We need to rid of that shadowing, can't see best temp from that, but 210 is a good start point, have we done flow rates?

[plush mason]

I do print on 210 i did temp tower and 20mm xyz cube only