[obfuscode]

Hey guys, long time reader, first time poster.

So... being the obstinate SOB that I am, I decided to do things completely backwards. I got all my electronics and started building my gantry without following a plan or cad drawing.

I have neither the proper tools or space to build anything decent so I was hoping to kind of fudge it enough to use the first machine to build a better second machine but I'm having major issues.. the whip on my 3/8 all-thread is so bad that when the gantry gets even half way down, the motor (270oz NEMA 23) starts grinding and either turns super slow or not at all. I don't currently have ABEC bearings with a large enough bore to fit over the lead screw so the only connection points are at the motor (lovejoy 3/8 -> 1/4) and the nut under the gantry.

Do I just need to get larger bore bearings and put them into a wood block with two 3/8 nuts on each side?

So regardless of fixing the whip, does this design even look feasible? When the gantry does move, it's very jumpy.