It's not my photo, but I have the same problem.

3D Printing
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1

It’s not my photo, but I have the same problem.
Look on flat top with 3 holes, that printed like vertical, so look on small wave on all way from left to right.
What is it?
How to make it flat?
It’s looks like wrong stepper current, but how to calibrate this?

d952104a8f7b4ab641e99035ee7eec1f.jpeg

2

Are you printing infill without an angle? Without an angle you might be getting waves because the line position may be restricted to multiples of the stepper. Print at 45 degrees and this might go away. If it’s still present you may need to turn up the extrusion by a few percent to get more fill and flatness.

3

No it’s not from infill.

  1. Infill angle 45
  2. Infill only 20% and wave like 80%

It’s not a TOP side - it’s a wall so it’s look like when head go by X axes and has a little frustrate on Y axes.

4

Backlash
It’s because the belts are slightly flexible. This means they are acting like a spring when you accelerate or decelerate your print head. Increase the tension or decrease the acceleration could help.

5

Look at left hole here a 3 dark line it’s a belt wave. And I clear this with acceleration. But wave skin not gone away I think it have another reason

6

Ah, now I see what you mean. To be honest, the pic is not the best :wink:
But yes, this seems to be a stepper rpoblem.

7

Yap picture is not special for this. But how to calibrate this is there any how-to or somth.?

8

Yap it’s yours :slight_smile: thank you for the photo. I found one solution and test it tomorrow. Write here if it help me

9

Here’s a blog post that has some things to try:
http://wiki.arcol.hu/blog:printing-reasonance

10

I believe @Thomas_Sanladerer recommends looking at your firmware’s XY jerk settings in his firmware tuning video. Apologies if I’m remembering poorly.

11

Jup, jerk/acceleration might be a part of the problem, but likely the current setting of your stepper drivers (just try a lower/higher setting and see what happens) also plays its part. Ans as usual, check that your belts and pulleys are tight.

12

Solution found.
Lower down current on X & Y driver as much as possible (now it’s impossible to destroy some planet with force of driver as that was before)

I made just a little bit more than need my end-stop press. Wall made a lot better but still not ideal (I don’t touch E-drive current on my direct drive it’s impossible to lower this)

13

Bad solution : )))))))))
right now when printing Angkor wad - it’s destroyed on middle of printing due to the step missing. Return back 0.4V