Memo to 9.5: if your machine is in decent shape and still has the factory stuff and has NOT been "improved upon" by a well intended but ill equipped techician, you should not have much to worry about.
Anytime you start letting non-factory people work on machine tools, you'll never know if they KNOW what they're doing or are simply using your machine for OJT (on the job training).
There are people out there who KNOW how to service BPT's. THere are folks out there who THINK they know how to service BPT's. There are folks with skills anywhere's inbetween.
How you find the experts takes luck and, perhaps, a lot of phoning to check up on so-called experts. Any technician should be happy to provide you with references. Naturally, they won't give you the bad ones. HOwever, if you ask around to other shops, you just might find a common consesus.
WE did exactly that with some trick heat treat sources that we needed and had real good results. We also went an interviewed the place BEFORE we sent the stuff there. Clean, well lit shops tend to do good work. Shops that look like they are a dungeon and walk around with grimey greasey clothes generally do not do brain surgery-like work.
References, multiple in some instances, are always prudent to check out and/or verify.
I sure hope V488 used a credit card to pay for his spindle rework. The credit card company can apply some "leverage" when prompted (as in holding up payment) if the customer is unsatisfied with the work/service.  |