Newbie- 3 phase to single phase on a boss 3?

[jcox1968]

I recently bought a BP Boss 3 with variable speed head. I was wondering if anyone here has ever converted one of these from a 3 phase spindle motor to a single phase motor and if so, what would be the best way to go about it? Is it so much of a hassle that I would be better off spending the money to run a phase converter all the time instead or is there some ready made kit that would make this easy to accomplish?

[Bpt Service]

Sorry, but the only motor that was made in a single phase package by Bridgeport was for their J-Head. That was a different frame type motor and was a 1 HP. Your only option is to purchase and run a phase converter.

[jcox1968]

Guess I should have explained my question a bit better. I HAVE a 2 h.p. motor with a VFD that is currently on a small benchtop CNC Masters mill. I was toying with the idea of trying to modify that so that it could run the Boss. Does this sound like a stupid idea?

[Bpt Service]

Well anything is possible. You would have to handle mounting requirements and then make the shaft of your existing motor match the Bridgeport Pulley or make the Bridgeport Pulley match the other motor shaft. Down side is these things are balanced and have no run-out. You could do all this work and wind up with vibration issues. If it were me, I would just get the converter and be done with it, plus then if you ever need parts you won't have a one of a kind thing. Good Luck

[mactec54]

jcox1968

Your motor from your bench top would not be suitable for the Bridgeport variable speed drive machine, but if your VFD is the right size, HP for the Bridgeport motor, then you could use that to run the motor only, there are many that have done this, & are running there Bridgeport Boss machines, on 220v single phase

[jcox1968]

WOW MAN! That sounds like its right up my alley. I am going to assume that this would be at a loss of speed and power. Is this correct? I could go for a deal like that if it was not a ridiculous loss. My intentions are to retro fit this BOSS 3 with a brand new controller, servos and drives(CNC - MachMotion.com) which are 120 v single phase. I have 220 running there now on the benchtop which I want to replace with the boss. And I have been sitting around scratching my ass trying to decide what to do. Would you have any idea if this wiring configuration would cost more to run than going with a phase converter? And also where I could look to find info on this? Thanks to all for the replies.

[mactec54]

jcox1968

You could also look at Dmm Technology for your conversion
This would be a better choice

Motion Control Products - DMM Technology

[kben77]

Originally Posted by mactec54 jcox1968 You could also look at Dmm Technology for your conversion This would be a better choice Motion Control Products - DMM Technology

Mactec54 have you used this system before ? I see it mentioned in a few posts and it seems to fit the bill for a Boss Conversions. I am thinking about buying one but would like to talk to some that has it installed on a Bridgeport.

Regards,
Kevin

[mactec54]

kben77

I have not put this system on a Bridgeport, but some others have, I have the Dmm system on other machines, & so do other zone members, they are easy to set up & run great, once you have had them you would never go back to a stepper system

I will find out who has it on a Bridgeport for you

[kben77]

Originally Posted by mactec54 kben77 I have not put this system on a Bridgeport, but some others have, I have the Dmm system on other machines, & so do other zone members, they are easy to set up & run great, once you have had them you would never go back to a stepper system I will find out who has it on a Bridgeport for you

Cool Thanks. I just want to make sure it is powerful enough for the Bridgeport and will provide good IPM. I am new to all this and don;t want to start out purchasing an under powered unit. As I said before it looks great and the price is decent especially for four Axis !

Thanks,
Kevin

[mactec54]

kben77

The 900watt motors would give you just over 200ipm, they have just over 1000rpm

This is more than enough power for your Bridgeport, I only have 850watt on mine,you can see it in the photo gallery