Newbie question about squaring

Show us an end view of that photo from both sides.

I just left my house, but I got some on google

bottom_view

So it’s just a straight shaft for all the wheels? What material is this yellow highlighted portion?

How is the gantry railing (in blue in the picture) attached to the yellow plate?

If there’s no adjustment at all then not sure what option you’d have other than returning the machine or modifying it.

You may want to reach out to Neje support about what you’ve found and ask them if they have a remedy. I’m sure this must be a fairly typical problem.

If you look closely at the top 4 holes they are elongated. For a deviation of 1.3mm it only needs to be 0.34 of a degree off square. I think with patience and trial and error you will be able to correct this…
Jim.

Good catch.

Looks like the yellow highlighted holes allow for adjustment. The round hole I assume is the pivot point.

Exactly, but not such a good system. Not easy to get perfect.

Guys, I finally got it! It turned out that these yellow holes, even though they looked like they would serve for adjustments, had a very precise fit and I couldn’t do much there, but that gave me a different idea, I unscrewed those 2 screws from the image below and managed to place the gantry a little bit aside, a few millimeters, but apparently it has improved the cuts a lot!! there is still a small offset, I would say something around 200 mm, but for my purposes, it is within acceptable limits.

@berainlb
Straight shaft for all the wheels?
→ Yes

What material is this yellow highlighted portion?
→ Some kind of rounded plastic, certainly not made for any “tuning” tool

How is the gantry railing (in blue in the picture) attached to the yellow plate?
→ Fixed by these screws that are circled in the image ( and that was the question that hit the nail on the head)

@Jimcoy

Your tip was very good, looking at the shape of the holes it looks like they were made to adjust the frame itself, you have a very good perception, I disassembled and reassembled the machine a few times didn’t even think about it haha

I would like to thank you guys for your help and immense patience, thank you very much! :tada: :tada: