X axis lead screw broke off at motor inside coupler

X axis lead screw broke off at motor inside coupler. I am waiting on tech support ticket to go through and see what is needed but checking to see what you guys suggest as the fastest way to get back running. I haven’t measured the milled down part of the shaft at the motor coupler side, looks like .25". On the opposite side looks more like 8mm not sure yet, will check in a bit. It snapped off while cutting a part mid line, didn’t hit anything. Actually it may not be milled down, maybe they drilled it and stuck a dowel inside it.

Get the correct one from Langmuir. Yes, the machined end is .250. I have only seen it several times on the forum. They can overnight one pretty fast.
I don’t know the acme size and pitch. Some of our rocket scientists will know if you want to make one yourself.

Thanks. I had a 1/4 to 1/2 coupler laying around and it fit perfectly. I’ll see what they say when they get back to me from tech support tomorrow but it may be fine as is.

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Always good to save good shit. Loose couplers lying around are a plus…

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I had this happen to me before. We did a temporary repair and Langmuir was kind enough to send out a replacement.

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I think the 1/4" shaft is inserted into the end. Mine broke off the same way as your photo. These McMaster parts fit perfectly to join the 1/4 motor shaft to the 1/2" shaft.

McMaster Parts to fix broken 1/4" end section

9845T2 1/4" inside diameter
9845T2 1/2" inside diameter
9845T14 spider