Hello,
I had an issue and started a ticket with Langmuir and am impatiently waiting on the response.
I believe I might have bearing issues but I am not sure just how loud or what a normal machine sound like after about 5 hours of total cut time /light wear. I performed the break-in as described in the assembly guide and have only done about 1 30-40 minute job per day on aluminum and all chip loads far under suggested and usually give it a warmup at the 5000 RPM toggle for about 10 minutes before starting. Now I cant know if I was really lucky or just the normal break-in of the bearings was unusually quiet during the first times I have been using it but I had an incident where the motor stalled out I am assuming because it overheated after a 27 minute job with a .25 4 flute endmill with .001 chip load passes. It was running fine and the spindle just cut out and the XY kept going but I acted quick and hit pause the coolant kept running on the bit but the spindle only tried to restart briefly once after pausing and then just wasn’t turning on anymore so then toggled it off on cut control and went to grab a thermal camera. Everything was at about 157F from what it could scan with the cover on. I took it off and did not see any higher than that anywhere. Now my machine sounds louder than before or higher pitched even after a day cooling?! https://photos.app.goo.gl/JzJoYyjz4VPS6dSs8 I was having trouble in the wait for their tech support so I took this video and then dug the forum and I saw how people had removed the motor and so I began to look for the tensioning features . I first stuck a screwdriver in the slot on the side of the belt cavity and was able to deflect the belt by about a quarter inch with very low pressure. So I tried to loosen the bolts and pull tension on it and try again. I achieved very taught belt / hard to deflect from the side and it still made the same noise as the video I linked. Then removed the motor and spun it freely and it felt relatively smooth like a motor should but noticed the belt had frays (https://photos.app.goo.gl/xNEehLAeKPBLwAAe6) and that the pulley on the motor had these weird small foldovers at the top of the pulley sticking into where the belt area would be? see here https://photos.app.goo.gl/2FCaAJB5R9jo62m1A
Also I observed that there is almost a clicky feel to the spindle assembly. What is it supposed to feel like?
https://photos.app.goo.gl/877KDwYdD915TqFYA.
I also made a folder so the photos and videos are all here https://photos.app.goo.gl/7ZTqidzCwX4EZqDm6.
Any help would be appreciated in calming me down while i wait lol I gotta finish parts by hand now the engineers are breathing down my neck for their prototypes!
Thanks,
McG