I have a reel-to-reel tape recorder which had one of its reel shafts hit during the transportation and now the thread fot its reel tightening cap is off-center as a result. It doesn't cause problems with operation or reel tightening, but is not very pleasant to look at. How can i fix this without compromising th reel's integrity?
>>2995776are you positive its not just the threaded stem out of the knob thats bent? straightening shafts is an art and you need a very controlable press a set of non marring vee blocks and at least 1 dial indicator. it requires the shaft be disassembled so nothing inside gets fucked up and youre not torquing on the fine bearings
>>2995779>just the threaded stemThat's exactly it, the big hunk of metal that is the shaft itself is fine (and can be taken off the motor shaft).In theory i could screw a bolt into it and apply force to it, but i really want to weigh my options other than this one.
>>2995776torch and vise lmao
>>2995780>can be taken off the motor shaftSo that central threaded part is actually the motor shaft? That could be a problem, since it could require replacing the motor. Or disassembling it.I'd need to see what the internal part of that threaded piece looks like. Straightening might be out of the question. If you are lucky and there's enough straight motor shaft left, a good machinist might be able to make a new front part, center bore and tap it and affix it to the (unbent) motor shaft, cut off.
>>2996042>So that central threaded part is actually the motor shaft?The entire reel slips off the motor shaft, fortunately. Threaded part is a part of the detachable reel, the motor shaft itself is good.Internally it looks like this and the shaft does not enter the threaded bit (+ a drawing)
>>2996063Good. If you can figure out how the bent threaded bit is fit into the reel, maybe it comes out easily. Maybe a couple of jam nuts on the thread to get a grip on it and it unscrews. Tape around the reel so pipe wrench doesn't mar it. Then take bent part to a machinist and ask to have a straight one made. Looks like nothing more than a bolt with a centered female thread down the middle. Simple project on a lathe.
>>2996068One thing I noticed: The reel might be made of two pieces. There are three little cam pieces visible on the back side, lower left frame of >>2996063 Some red loktite holding them in place. There may be screw heads (hex, whatever) accessible from the deep holes from the front side. Make sure these don't hold anything important together before going gorilla with the pipe wrench. OTOH, they might have something to do with the reel brake (pic just above) and don't need fiddling with.
