I had to replace my hot-end this past week (long story there, but not important)… while I had that apart I was just tired of the probably 1/16" of vertical and forward play that I had in the X axis… it was all from those IGUS (I think better termed I_SUCK) bearings.
The major problem with the ones that Lulz uses is that they are the ones that are suppose to be used in a “compression” not free floating. They - IGUS actually makes one that can be used in free floating applications. I didn’t try that, but may at some point.
Anyway, I had ordered some of the 10mm linear bearings from china and Ebay and so while I had most of the X AXIS apart I replaced the IGUS bearings with the linear ones.
WOW, why did I wait so long!!! I was able to get just about all the noise out of the system with a little playing with how and in what order I tightened the screws putting it back together… It look was was easily 10 thousandths or more probably closer to 20 out of the bearings and made it zero (or close to it).
After I got it back together, I dial calibrate checked the level of the X axis to the Y Axis smooth rods and tweaks just a smidge of difference out of that. Then I releveled the bed.
Now I need to make 1013’s other mods, but it was amazing the difference. Where I was wiping the nozzle before and you could just feel everything move forward and up, it doesn’t do that any more.
If they want to stay with the plastic bearings at least move to the ones that aren’t made for compression fit.
I’ve got enough linears to do all the other axis’s as well which I’ll do at some point in time…