Triangular wave and print area

Leblond

no improvement

Veti

it seems to be very consistent.

can you turn the glass 90 degrees?

OwenD

Is the X carriage on wheels?
I'm not familiar with the printer and can't tell from the photos I've seen,
Almost looks like an eccentric wheel causing the nozzle to rise & fall with each rotation

Leblond

Leblond

Yes, the trolley is on rails and has eccentrics

peter247

@Leblond

level 3.png

I've had the same problem once , it was the x axis wheels and stopped the ripple with linear rails , but I guess getting better would have fixed it too.

Leblond

@Veti yes I have already tried to rotate it 90 degrees, but no improvement

Leblond

@peter247 in practice they had?

Phaedrux

@Leblond said in Triangular wave and print area:

Yes, the trolley is on rails and has eccentrics

I don't think he's talking about eccentric nuts to adjust wheel tension, I think he means the wheel itself may be out of round.

Is the spacing between the peaks equivalent to a full rotation of the wheel?

Leblond

@Phaedrux ok, but I tried to move it manually without the belt to see if it was free and so it was, do you think the bearings need to be changed?

Phaedrux

Well the real question is does mesh compensation work to produce a good first layer?

Do a test print once with mesh enabled and another with it disabled. You should be able to tell if the mesh is accurate or not.

bedlevel_nozzle_0.4_200x200-0.3-0.8.stl

Leblond

@Phaedrux ok I will try in the meantime I disassembled the x axis turned the bearings
"just to give it a try while I was waiting for some advice from you" and now I've reassembled it and put it back to making a cold mesh to see if anything has changed, then I'll try to print to see if the mesh works or not, tomorrow I will post the results with and without mesh, for the moment thanks @Phaedrux.

Leblond

@Phaedrux looking at the graphic mesh and checking the coordinates of X which are spaced by 20mm, in 60mm the wheel should make a full turn, I did a free test: I lowered the probe stem I raised the Z axis until it touches the flat, at this point I moved the X axis by 60mm and about 30mm it raised and then lowered in the remaining 30mm, you know you were right the bearings are gone

Veti

have you decided what to do about it?
new bearings or linear rail conversion?

Leblond

@Veti think about changing bearings? some idea?

Leblond

@Veti converting it would cost me time would i have to create the pieces and have them made

Veti

@Leblond
depends on where you live
A good place to start are the original openparts store
https://openbuildspartstore.com/metal-v-wheel-kit/
https://openbuildspartstore.com/ball-bearing-625-2rs-5x16x5/
(check that the size is the same as yours)

alternative these are recommended for the voron 2 printer and are supposed to be high quality
https://www.aliexpress.com/item/32991204773.html

look for high quality bearings ABEC-7 or above ( ABEC-9)

Leblond

@Veti I live in Italy, ok I look at it thanks

Veti

@Leblond said in Triangular wave and print area:

converting it would cost me time would i have to create the pieces and have them made

the parts you can print yourself.
eg (there are many others for the troxy)
https://www.thingiverse.com/thing:3855641

the rails would need to be ordered