SV05 X and Y axis guide rail wheels

Sovol SV05 Cubic DD
1

I just received my SV05 and after assembling it, I noticed that when moving the X and Y axis, there is a very noticeable “bump”.

I have determined that the bump occurs on every revolution of the tapered guide rollers ( 3 on the X axis and 8 on the Y axis) that ride on the edges of the aluminum channel.

I think they are too tight and are flat spotting when the machine isn’t moving. This will cause big problems when printing as the motion will not be smooth.

I noticed the bottom bearing mount for the X, and the inside 4 bearing mounts for the Y, are on an eccentric spacer that can set the tension/spacing of the rollers.
What is the best method to set the tension on these eccentric posts?

If a pic would help, let me know!
Thanks.

2

I had the same experience, had to play with the eccentric adjustments until all wheels were rolling smooth but not too loose. A bit of a fiddly game but I was able to get it right in the end. Also check if your extrusions are straight, parallel and square.

3

Thank you for the reply.
I went ahead and adjusted mine so that there was no “play” and just a very slight amount of slipping when turned by hand.
Seemed to fix the problem for me.