I have a bad ball screw on my left Y axis, machine is only 6 months old. Grinding noise, wobble, tolerances off by .02 at times….
What can I do to replace? Langmuir support has been essentially worthless. 5 days to reply to a simple email. Anyone?
I would email them again or call on Monday morning. I have never had an issue with Langmuir.
Who knows what happened? @langmuir-jake langmuir-jake is one of the big cheeses 
How many hours do you have on it about? Regularly lube it? Is everything tight?
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Like mentioned, I would just call.
I emailed about an item that showed as “delivered with shipment” when it in fact wasn’t in the shipment received. Email was sent after hours (Thursday evening) and I got a reply the next morning.
I called that day as well to ask if they sold banners (which they don’t). I only mention this because when I call, they answer right away and this was yesterday.
In my experience their customer support is crazy fast to answer whether via email or phone.
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I have about 40 hours total time on the machine. It’s a nasty grinding noise on the left ball Y axis ball screw….i am just frustrated as all of my parts are out of tolerance now and the machine is sidelined. I’ll call on Monday….
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Have you greased them yet? You need 4 mm x .07 metric grease zerks for the ball carriage. I would say that at almost 50 hours, it is due. The zerks are a pain to find, if I remember correctly. McMaster Carr is where I got mine.
Isnt that just for the linear rails? Other than manually lubing the screws (which I have done); there is no way to lube the ball nut - which is where my grinding is coming from.
I’m sure they will send you a new one. Maybe a ball bearing has failed? They are pretty bulletproof, though.
Just for future reference, my machine uses a M6 x 1mm fitting (not M6 x 0.75mm like I had ordered!).
Just closing the loop here - Langmuir sent out a new ball screw at no cost. I have not yet had time to install but am appreciative of them sending it!
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A few tips from my personal learning as you use the new ball screw:
- My ball screws became loose and I was getting bad repeatability on my parts. I was unaware that the tightening nuts on all of my screws were loose. These are the nuts at the opposite ends of where the steppers are.
- If you’re hearing noises, then the ball bearings are shot. You’ll need to replace them
- Shot ball bearings happen from a few things - Overtightened nuts causing excessive load on the bearings. And cutting fluid getting inside the ball bearing over time blows them out.
- I always keep spare ballbearings
- I check the tightness of the nuts at least once a week if I’m running lots of parts.
Hope that’s helpful.
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