About the OpenBuilds Lead Screw Customization.

About the OpenBuilds Lead Screw Customization.

Good evening.
I&#;m currently assembling an OpenBuilds LEAD . Today I assembled the Y-axis actuators. One of the lead screws was very tight, but I did manage to get it installed.

The other was much tighter. Impossible to turn with my hands. I got some rubber gloves, still couldn&#;t turn it. Tried putting two tension nuts on the end in a &#;jam-nut&#; configuration and turning it that way. Didn&#;t work. Finally, I sprayed some dry-lube on the screw threads and in the nut block. Then I was able to turn it with the rubber gloves on, but only barely and with tremendous effort. It took a long time.

When squaring the gantry (step 23 in the build video, I think), in order to move the gantry to front of machine on that side, I had to rotate the screw by using a 13mm open end wrench on the tension nut. The other screw rotated by hand with no problem.

I have two points here:
1: Despite &#;customization, the screw/nut block was just too tight in this case. Tight is good, but immovable is not.
2: I hope it operates properly when completed. Having to disassemble back to this point and reassemble with another screw would be highly frustrating. Having to disassemble even further back to replacing the nut block would be significantly worse. I will spray all the screws with dry-line before I boot it up and jog it for the first time.

Thx, rink.

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