First night building.

I got the full kit from EEM-LLC last night and started building.

I worked on it for a few hours and I got done with the 1st page

(1)X-left-instructions-2a.pdf

I spent a bit of time trying to match screws, spent time with calipers measuring sizes to make sure I am using the right ones.

As others have mentioned sometimes getting the captive nuts in is challenging. I have not tried it yet, but I am wondering if a soldering iron on the nut would soften the plastic enough for the nut to seat. I did have a little breakage (crack) around the outside of the nut holder on the x-base left shaft lock. However it doesn't look like it will be a big deal.

One thing I found out much to my chagrin is that backing the ball screw out too far leads to a disaster. I was trying to get the ball screw out of the way so I could get channel locks on step 5, which I did out of order and had already installed the balls crew and nut. Not sure how many balls I lost, but I am sure its more than a few. I found a video on youtube on re-balling your nuts, however I didn't feel up to it and order a new ball nut from Amazon.

I do have a question on the NEMA motor installs, any suggestions on left, right or center for the wires?

Finished the right, and y carriage.  Well the Y isn't done because I may have the wrong ball screw.

Anyway here is a picture of the cracks, I have them on both sides.  Again, it doesn't impact getting anything tight so its just superficial.

Assuming you have all parts ready (e.g. printed) how long does it take to build do you think?

I don't know, I have done it over several nights, and its not done yet (missing parts).

I would say 8 or 12 hours. Assuming you don't put it together backwards a few times.

this is a weak point in the design.. same exact thing happened to me. i just backed it off and built it up with epoxy to avoid wasting the time of printing another. all it has to do is sit there. not really a lot of stress happening at that particular point.