X axis locking up

Yeah so that mount either shifted during shipping, or the guys misused the alignment fixture (non poke yoke fixture design, i take the blame there). In any case i will let the guys know tomorrow morning to watch out for that.

No worry’s, thanks for the help.

Hi, I finally got to cut a couple things out sunday. Tonight i cut 2 projects out fine. The third one had a circle around it and when it started cutting it ,it went half around and the Y axis stuck. Now it will jog one half a turn on the lead screw in the possative direction at one time. In the Negative it will go perfectly smooth. I greases the lead screw sunday. Tonight i loosened up the lead screw . Made sure everything looked ok . Including the carrier thing with the 4 bolts that the lead screw runs in. I loosened the allen screws that put the tension on the roller bearings. Does the same thing with everything tension free. Any Ideas? Thanks Jim

Ok when i unbolt the 4 cap screws on the thing that the lead screw pushes/pulls with I can barley hold it when jogging machine.( it went on very hard when assembling) I greased it real well and held it with pliers and went back and forth. I have it jogging now . My only concern is the pitch of the sound is real low compared to the X axis motor. Is the sound difference normal because one is moving alot more weight? Looks like it is even running slower. I dont want to burn up the motor. Not sure if its the lead screw or the threaded holder that is making it real tight. Everything was clean. I need to know if I need to just run it that way or replace a lead screw and threaded peice . Thanks Jim

Hi Jim,

Sounds like your lead nut is defective. Was it hard to scrww on?

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Yes Sir, I thought it would wear in with use but i feel its getting worse.

Is the black part of the nut exposed? When you screwed it on the lead screw did you pull the white collar back against the spring so the black fingers protruded a bit? They’re split so they’ll open up around the lead screw and the white collar springs back around to give it some pressure but not too tight.

If you don’t pull the collar back against the spring you can get it on the lead screw but it’s anywhere from wicked tight to OMG I need a wrench on the lead screw to turn it tight :slight_smile:

If it’s on right, you can pull the white collar back against the spring even when it’s screwed onto the lead screw. If it’s not on right (like if the collar wasn’t pulled back when you screwed it on) then you likely can’t move the collar back.

Here are a couple of pictures. One with how it should look at rest and the other shows how the collar can be pulled back and you can see the way the black part extends out.

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Yep did it on the first one after i figure that out it stil went on alot harder than the first. put leather gloves on when puttin it on lead screw was chewin my hands up. thought it would wear in. and the spring works fine. just like the other one. and Thanks for the reply.

Hi Jim,
We’ll get a new one sent out to you today.

Ok Thank you for being such a stand up business. We all do Appricate you all at Ls.

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I am having this same issue with the x axis binding. I have followed all the different steps and no matter what I do all of a sudden there is random binding it just seems to move to different sections of the x axis as i loosen or tighten different components.

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I would also add that my x axis motor is always warm no matter if its moving or not. Is this normal. I have never felt any heat whatsoever from the y axis motor. However after removing the x axis stepper motor it doesnt seem to have any issues and there are definitely dry spots turning the lead screw.

Mine also had a sticky spot and I had to adjust the bearing carrier’s and it resolved that for me. Makes me think that you just have too much pressure on the tubing to roll smoothly.

Cant see if the motor is turning, Sounds like it but the lead screw not moving. Check the locknut on coupling at motor. I had to use locktite to keep them snug.

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Ended up being a deformed lead nut bracket. Chewed up the lead nut pretty bad. Have to get a new one somehow.

It’ll do that if you didn’t pull it back over the collar before threading it on.

I couldn’t even get it to start onto the lead screw until I pulled the collar back. It was the bracket in this case. I basically tore the x axis apart several times trying to fix little issues I found that might be causing it. In the end it was just that bracket being way out of square. Once I put it in my press brake and straightened it it ran quieter than it ever had before.

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Ah. There were one or two reports of that early on but never so bad it destroyed a lead screw. Usually just some binding that was caught & fixed early on.

Ha I’d got to the point I thought it was just noisy and would be fine. First time I let it cut on its own without watching it it destroyed a 24" x 36" piece of 1/2" plate. I had patterned out just by binding a few times. I walked over from my lathe and was like wtf and saw it bind a couple more times in the process. Guess I will babysit it forever now.

Once it’s setup correctly it just cooks along. I keep an eye on it anyway for tip ups but haven’t had a wild cut in along time. But it’s worth watching especially with something big & expensive on the table.