I have a PM949TS (Bridgeport clone) and I have gotten my R8-ER32 collet holder stuck on the draw bar.
I'm not sure how I managed to do this. My guess is something to do with using backgear to hold the spindle from rotating while tightening the ER collet holder, and I turned the mill on before moving back to the normal gear by accident. But I've done this before and the drawbar did not get stuck. (I'm not sure if I did this right before it got stuck)
The drawbar does not budge in the slightest. I've tried the normal 16"? double end wrench with a mallet and an pneumatic impact wrench. I've also tried letting the spindle run for 10mins to warm up, but still nothing.
Last resort is to cut the head of the drawbar off and hammer it out. But I'd like to avoid that.
The R8-ER32 collet holder was in good shape with no burrs/dings and had been in and out of the spindle a few times before I got the drawbar stuck. I don't feel like I over tigthened either the collet holder or the drawbar. I had made a few tool changes between the ER collet holder and a drill chuck before this happened.
Any advice on what I should try next would be appreciated.
I'm not sure how I managed to do this. My guess is something to do with using backgear to hold the spindle from rotating while tightening the ER collet holder, and I turned the mill on before moving back to the normal gear by accident. But I've done this before and the drawbar did not get stuck. (I'm not sure if I did this right before it got stuck)
The drawbar does not budge in the slightest. I've tried the normal 16"? double end wrench with a mallet and an pneumatic impact wrench. I've also tried letting the spindle run for 10mins to warm up, but still nothing.
Last resort is to cut the head of the drawbar off and hammer it out. But I'd like to avoid that.
The R8-ER32 collet holder was in good shape with no burrs/dings and had been in and out of the spindle a few times before I got the drawbar stuck. I don't feel like I over tigthened either the collet holder or the drawbar. I had made a few tool changes between the ER collet holder and a drill chuck before this happened.
Any advice on what I should try next would be appreciated.