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IndustryArena Forum > MetalWorking Machines > Bridgeport Machines > Bridgeport / Hardinge Mills > ANOTHER Bridgeport Mill conversion ( Build )
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  1. #1
    Join Date
    Dec 2006
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    87

    ANOTHER Bridgeport Mill conversion ( Build )

    Hi guys,

    Think i have gathered enough information to throw this post out there.. Picked up a 3 axis tilty head Boss ( will be delivered tomorrow... so pics will follow ) after reading and re reading many of the excellent threads here i feel like i have decided on my upgrade path. First, i want to say that there are more than a few talented people here and i am inspired to up my game after seeing some of the things you have built and designed. and i want to thank you all ALREADY for all the info that i have absorbed ( or at least i think i have absorbed )

    im intimidated on keeping the original servos .. ( im not that good at electronics and the power supply kinda freaks me out ) not to mention all the wiring. )


    so here goes

    Bridgeport Boss 3 axis Mill
    Linux CNC
    Mesa Cards 5 axis ( still on the fence on pci or network )
    DMM Servos

    hoping to have power lube / fog buster / tool height / draw bar automated


    Looking forward to having you all along for the ride !

    Joe

  2. #2
    Join Date
    Dec 2006
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    87

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    Machine is here !!
    Attached Thumbnails Attached Thumbnails 20190126_132344.jpg  

  3. #3
    Join Date
    Dec 2006
    Posts
    87

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    would you guys know if these are steppers or servos ? and what voltage / amps / and how they are wired ? maybe i can keep them and just install new drivers there are what looks like hour meters on the motor housings the x has 700 and the y has 800 wonder if thats all the time this machine has seen.. ways are exceptional

  4. #4
    Join Date
    Dec 2006
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    87

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    here is one of the motors... there are no external tags with model numbers etc on them
    Attached Thumbnails Attached Thumbnails 20190126_132403.jpg  

  5. #5
    Join Date
    Dec 2013
    Posts
    5717

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    This would be a good place to start https://www.cnczone.com/forums/bridg...ko-keling.html
    Jim Dawson
    Sandy, Oregon, USA

  6. #6
    Join Date
    Sep 2003
    Posts
    73

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    That machine has steppers, it looks like a almost new machine, very clean

  7. #7
    Join Date
    Dec 2006
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    87

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    Quote Originally Posted by Jim Dawson View Post
    This would be a good place to start https://www.cnczone.com/forums/bridg...ko-keling.html
    Thanks Jim!

  8. #8
    Join Date
    Dec 2006
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    87

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    Quote Originally Posted by Jonp View Post
    That machine has steppers, it looks like a almost new machine, very clean
    thanks Jon! Yes, I think it just sat. No one knew how it operated.

  9. #9
    Join Date
    Jan 2005
    Posts
    15362

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    Quote Originally Posted by mongoose View Post
    here is one of the motors... there are no external tags with model numbers etc on them
    They are steppers, looks like a well looked after Boss 5
    Mactec54

  10. #10
    Join Date
    Dec 2006
    Posts
    87

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    just pulled off the y axis stepper... reached out to DMM to see what they would recommend

    any reason to try and keep the y axis lock and the travel dial ?

  11. #11
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    Jan 2005
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    15362

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    Quote Originally Posted by mongoose View Post
    just pulled off the y axis stepper... reached out to DMM to see what they would recommend

    any reason to try and keep the y axis lock and the travel dial ?
    750W if you are going with the DMM, is your timing pulleys 1:1 or 2:1
    Mactec54

  12. #12
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    Dec 2006
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    87

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    Quote Originally Posted by mactec54 View Post
    750W if you are going with the DMM, is your timing pulleys 1:1 or 2:1
    mactec, pulleys are 1 to 1

    thank you

    joe

  13. #13
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    Jan 2005
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    15362

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    Quote Originally Posted by mongoose View Post
    mactec, pulleys are 1 to 1

    thank you

    joe
    So your mill is either a Boss5 or older Boss series as Boss6 has 2:1

    Just check I think Dmm may have the right nema size motor flange, you won't need an adapter plate if they have this size mounting flange, they have 2 different motors one is NEMA and the other is ISO/metric
    Mactec54

  14. #14
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    Dec 2006
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    87

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    Looks like they have the high voltage 200 volts model that will fit it is 1.3 kW do i need one with a brake ? or not

    Joe

  15. #15
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    Jan 2005
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    15362

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    Quote Originally Posted by mongoose View Post
    Looks like they have the high voltage 200 volts model that will fit it is 1.3 kW do i need one with a brake ? or not

    Joe
    No that would be way to big 750w is all you need, no brakes needed
    Mactec54

  16. #16
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    Dec 2006
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    87

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    Quote Originally Posted by mactec54 View Post
    No that would be way to big 750w is all you need, no brakes needed
    thanks Mactec.. looks like they only have 1.3kW in that size frame

  17. #17
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    15362

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    Quote Originally Posted by mongoose View Post
    thanks Mactec.. looks like they only have 1.3kW in that size frame
    Are yes, so you will have to make the adapter plates for the 750w motors this will require also a motor shaft extension or a pulley that has an offset boss
    Attached Thumbnails Attached Thumbnails Bridgeport to Dmm Motor Mount-2.jpg   Bridgeport  to Dmm With Pulley.jpg   Bridgeport Pulley modification.jpg   Bridgeport Pulley modification-1.jpg  

    Bridgeport Pulley modification-2.jpg   Bridgeport to Dmm Motor Mount.jpg  
    Mactec54

  18. #18
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    Dec 2006
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    87
    Quote Originally Posted by mactec54 View Post
    Are yes, so you will have to make the adapter plates for the 750w motors this will require also a motor shaft extension or a pulley that has an offset boss
    Mactec, I resigned myself to that... lol I ordered one of the dmm nema 34 servos last nite to get started

    Thank you for the pictures !

    Joe

  19. #19
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    Dec 2006
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    87

    Re: ANOTHER Bridgeport Mill conversion ( Build )

    Mactec, would you make this out of steel or aluminum?

  20. #20
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    Re: ANOTHER Bridgeport Mill conversion ( Build )

    Quote Originally Posted by mongoose View Post
    Mactec, would you make this out of steel or aluminum?
    Most I have done them in 12L14 I think the Y axes is the only one you have to do this way I would not be sure though, some have brought a new aluminum pulley with a boss on it that can make up for the needed extra length, this is about the same amount of work as modifying the original pulley, the adapter mounting plate 3/8 minimum thickness
    Mactec54

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