Bridgeport Series I questions

[turbostang]

I am looking at a BP series 1 that is going to cost me about 500$ and a few hours of work. Nothing major. The machine is said to run but that doesn't really concern me too much - I have plans of adding an Ajax/Centroid controller which should do away with all of the outdated controlls.

The questions are - What is the air cylinder for that is on the front/top/left of the machine? Is it for the PDB?

Question #2 - what is the cylinder with the attached hoses on the oppsite side of the head? Spindle speed control of some sort?

Question#3 - What taper should this machine have? (it appears to have some sort of quick change small taper on it now, something like a quarter turn to release the tool..I thought it said something like "quick change 20", but I can't find it anywhere)...

Assuming all of the controls were no good but the ways, ballscrews, and motor are in great shape - would this thing be worth 500$??

It is just like the BP in this link:

http://www.centroidcnc.com/bridgeport_boss.htm

[machintek]

Question 1: brake air cylinder.
Question 2: speed change air motor.
Question 3: Either a QC30 or a Universal Quick Switch 200.

George

[turbostang]

Ok, I looked up the Kwik switch 200 stuff and those things are tiny! Is there any advantage to using or not using the 200 stuff?

[cut more]

Kwik switch 200 goes up to 1" shank.
That is tiny?
Cutmore

[turbostang]

The taper itself is tiny, Not to mention the spindle looks like it's smaller than normal. Well, I should say I've seen smaller mills with bigger spindles.

In other words, I plan on running it pretty hard and those things may pose a problem, not to mention the avaialbility of the qwik switch tooling doesn't seem to be as readily avaialble.

[cut more]

try this place for tooling, they also have a page that shows the different machine tapers so you can tell what you have. Just don't buy all the kwik switch 200's on me!
http://www.tools-n-gizmos.com/store/..._sale&ppinc=MT
Cutmore

[turbostang]

Thanks for the link! I don't know that I'll even get that machine, so those tools will be safe!

Does that type of tooling perform pretty well? PRetty rigid?

[cut more]

Yes these tool holders are plenty stong enough, I was using a 3" diameter face mill planing the end of a quick change axle adapter. I only had 3 clamps on the part. The part loosened up & my face mill hung-up and stopped my 2hp spindle! This bent the shank on the facemill adapter but the toolholder & luckily the spindle were fine.
So I would say you won't have a problem with this type of toolholder.
Cutmore

[turbostang]

ouch!