Base plate not flat

[brvdboss]

@NeilL

It is as if the homing is not aligning both sides to the same height, which suggests one of other of the linear modules is out by 1mm. But which one?

That is because the axis don’t align automatically. You have to do that manually.

You can find a picture of how you can do it in this post (there are more, this is the first one I could find) :

Milling the cnc wasteboard flat (or so I thought): mis-aligned z-axis modules

I’ve started doing it regularly, in fact. Every week or two using 1-2-3 blocks as parallels [PXL_20201023_022823071.NIGHT]

Personally, I don’t have 1-2-3 blocks and use soda or soup cans (which are often pretty consistent in size)

A bit more explanation in this post :

Z offset Issue after Crash and not able to Print anymore

@Somnium tramming is making sure that the x-axis is parallel with the plane of the bed (note not necessarily the bed itself, because that can woble a bit) So typically the Y-modules. Making sure those are well aligned. If you search the forum you can find some pictures on how you can do it, this is the first one I found: Milling the cnc wasteboard flat (or so I thought): mis-aligned z-axis modules - #16 by brent113 I don’t have 1-2-3 blocks as @brent113 is using in that post, but I use cans of…