I have just acquired a bridgeport mill. Is the quill supposed to retract
when the lever is released (like on a drill press) ?

Also what do people recommend for converting single phase power to 3 phase?

Thank you

Robert Then

"Robert Then" wrote in message
...
I have just acquired a bridgeport mill. Is the quill supposed to retract
when the lever is released (like on a drill press) ?

Also what do people recommend for converting single phase power to 3
phase?

Thank you

Robert Then

No, the quill should stay where you stop it, although the weight of the
handle, which is easily relocated, may influence it slightly. You want as
much "feel" as possible in the quill of a "drop spindle" mill like a
Bridgeport, for you rely on your sense of touch to drill tiny holes without
breaking the drill.

Static phase converters work fairly well for fixed loads, but you give up
some horse power. That can be a serious issue if you use your mill to
capacity. You're going to hear from lots of guys that have rotary phase
converters in their shops, many of which can provide the necessary
information to build your own. I have three phase service so it's never
been a consideration for me.

Good luck with the new (to you) mill!

Harold

Check out KB Electronics, their inverters will run a 3 phase on single
phase. I've been using one for over three years without a hiccup.
http://www.kbelectronics.com

Rex the Wrench



Robert Then wrote:
I have just acquired a bridgeport mill. Is the quill supposed to retract
when the lever is released (like on a drill press) ?

Also what do people recommend for converting single phase power to 3 phase?

Thank you

Robert Then

I have just acquired a bridgeport mill. Is the quill supposed to retract
when the lever is released (like on a drill press) ?

probably the quill spring had been replaced with too much preload.

[posted and mailed]

"Robert Then" wrote in
:

I have just acquired a bridgeport mill. Is the quill supposed to
retract when the lever is released (like on a drill press) ?

Also what do people recommend for converting single phase power to 3
phase?

Thank you

Robert Then



The spring does not retract the quill on a Bridgeport. It counterbalances
it. It should theoretically not move from where you set it. If you have a
1hp motor, go buy a VFD from http://www.dealerselectric.com TECO Westing
House units are great value.

Also, for you Bridgeport fans, be sure to order the catalog from High
Quality Tools, http://www.hqtinc.com great supplier of OEM Bridgeport
parts and their catalog has an exploded parts list for the Step Pulley
and the Variable Pulley machines.

Marty

Marty