Re[2]: [CAD_CAM_EDM_DRO] Re: has anybody converted a bridgeport btc to cnc

JE> bridgeportman21 wrote:

>> --- In CAD_CAM_EDM_DRO@y..., Jon Elson <elson@p...> wrote:
>> > bridgeportman21 wrote:
>> >
>> > > i just picked up a bridgeport btc (tape) machine i would like to
>> > > convert it to cnc. evertthing works so i would like to do it as
>> cheap
>> > > as possible. it will be my first project. any ideas
>> >
>> > Is this 2-axis or 3 under control? Does it have steppers or servo
>> motors?
>> > What control is (was) on it? When you say everything works, do you
>> > mean the control is working, too? That's a bit rare!
>> >
>> > Jon the machine came out of a working shop. it has a tool changer
>> 22 i believe. long black motors i guess they are steppers.

JE> No, the long, black motors are most likely SEM DC servo motors. That makes
JE> it a much newer machine, and more desirable. Don't take them off and put
JE> steppers on it! In fact, I just don't understand what you mean with "convert it
JE> to CNC". It apparently is a fully working CNC machine already.

JE> Jon

As Jon says, the motors on a BTC-1 are SEM servos. The tool
changer is 24 position and is driven by a geneva mechanism and
an air motor..

Larry..