Hello Mac
Finding a good used Bridgeport mill can be a experiance.
I at one time had the want for a Bridgeport, and I traveled many miles on several occasions. looking at BPs. What I did find was, lots of very worn out machines, and they all seemed to have issues of one description or another. I did find 2 that were in nice shape, but way over priced. I wanted a BP, but wasnt willing to over pay just to have that brand of mill. I looked at so many used BP mills, I thought, what the hell, lets see what these over priced mills looked like.
Now don,t get me wrong here. I like American machinery as much as the next guy, but I have a few tips for you, to keep you from regretting owning a BP. From looking at so many, I can say this. Out of all that I had looked at in the 2000 to 3000 dollar range had very worn ways. I looked at so many in this condition that I was really starting to wonder if all these machines had spent there life machining cast iron, and never getting oiled. I found the X and Y axis ways were all in rough shape. Most had excessive back lash in the screws. And the issues I speak of are small things, but things you would need to repair, none the less. I found many with the quill down feed not working, so much for any boring jobs. J head models with issues getting into back gear, some wouldnt even go into BG. Vari speed head models that made so much racket, it made me wonder , just how long has this machine been run like this,,Yrs?
Seems as though many of these machines come up for sale, but they usually need some work. My best advice I can give you is, First thing to find out, is this machine under power? if not roll the dice, and may gods luck be with you. Look at the ways, look real good at this. That was the worst thing I found , over and over. Makes me wonder if the BP ways were not that great to start with. Run the Xand Y full travel, will it get to full travel with getting tight?
The BP head, J-head or Vari-speed. Check out every function, and dont miss anything. Run at all speeds, check all speeds of the quill down feed too. Listen for odd noises. Make certain it shifts into back gear. Run the thing through all its paces, and then some. After all, its your money. Check the quill for run out, if they claim it has no tooling, bring your own collet and test bar. Bring indicaters to check these things. Beware of freshly painted up machines, they can have a multitude of sins hiding under that fresh paint.
A few other things to check. Make sure the ram moves freely full in and out. Check the tilt and nod as well. I had run into a few that the owns stopped me from checking these things, and addmitted the gear/ or someting was broken, and if I tried to tilt the head, it would just free fall, nice. But if I didnt start to check, nobody was going to confess to anything, again, its your money. I would not even think about a machine that was not under power. I would not concider a machine that you cannot personally inspect. I looked for a used BP for 2 yrs, I couldnt find one that was ready to work, only ready to work on!
I didnt end up with a BP, but thats another story. The advice given here should be all the same, regardless of what brand your looking at.
Good luck in your pursuite of a BridgePort, I hope you find a good one , at the right price.
Paul