SoliForum - 3D Printing Community — Uneven Surface, what's the problem?

Re: Uneven Surface, what's the problem?

2014-02-20T17:31:45Z

davidm wrote:

I have the sd2 Pro w/o any modifications, do you have some links for this because I don't find it with google?

Just use the forum search.... VREF you'll find more info than you need. Also Solidoodle has instructions in their official WIKI.
I adjust mine the way Adrian recommends so pay attention to his posts on the subject.

Re: Uneven Surface, what's the problem?

2014-02-20T17:13:58Z

I have the sd2 Pro w/o any modifications, do you have some links for this because I don't find it with google?

Re: Uneven Surface, what's the problem?

2014-02-20T17:06:20Z

That wavy pattern is what is often referred to as Moire. It is caused by the pulse of the 1/16th micro step of the stepper driver. Basically it pulses as it rotates and causes that pattern. This can be reduced some with proper VREF calibration of the stepper driver. Alternatively you could replace that driver with a 1/32 stepper depending on which board you have this can be a simple and cheap modification. Or you could switch to a geared extruder such as BulldogXL.

Uneven Surface, what's the problem?

2014-02-20T17:00:23Z

Hey, I just solved my issues with top and bottom layers not printing right, now I have to ask why the surface of my prints gets so uneven. I calibrated everything (Z axis offset, extrusion rate and this temperature thing) but the surface is slightly waved. I attached some Photos.
Thanks for your help!