Newbie here. I have to say this has been a lot of fun to build. I printed all the parts myself using my Bambu PS1. The directions have been solid. I am getting ready to square up the gantry. The squaring has been the most difficult concept for me to put into practice. I am attaching a link to a video that shows my question. Any pointers on squaring would be most appreciated as well. Thanks for helping me!
Square it up.
The play in the Z looks a.bit much to me. I can hear the bearings clicking as well.
That’s either the gantry bearings bolted to the core, or the Z axis tube bearings being a bit loose.
Both of those can be adjusted, and you’ll want to do that so that all of the 608 skate bearings touch their respective rails.
These are very small adjustments. You don’t want any actual force feom the bearings to the steel, but you want them in contact. The instructions have information on where to tighten them.
In the case of the core bearjngs to the gantries, the jnstructions say to leave the nuts from the vertical bolts off at first. The nuts there with even very light pressure will pinch the bearings together onto those tubes. Turn these just a tiny bit at a time until all 3 bearings touch steel, this will probably take care of it.
Note that the top of the Z tower has a lot of leverage on the Z axis, don’t attach anything to the top aside from the Z motor wire.
This is very helpful - Thank you!
Hello 
I am really happy that you are enjoying building and printing your parts with your Bambu PS1! Squaring up the gantry can indeed be a bit tricky, but with some patience, you will get it right.
I took a look at your video, and here are a few tips that might help:
- Make sure you’re using a high-quality precision square. This can help ensure your measurements are accurate.
- Measure the diagonals of the gantry to ensure they are equal.
- Make small adjustments and recheck your measurements after each adjustment. It might take a few iterations to get it perfect.
It is a crucial step for accuracy. If you still have trouble, feel free to share more details or ask any type of questions. The community here is very helpful.
Good Luck!
Respected community member 