Re: [CAD_CAM_EDM_DRO] Re: MachMotion vs. DIY for a Bridgeport

FYI-A Bridgeport Interact is a Hardinge product, it's an enclosed CNC
mill (10kw spindle, 40 taper, etc). It's not a Bridgeport manual mill
conversion.

On Wed, Feb 18, 2009 at 8:30 PM, Danny Miller <dannym@...> wrote:
> OK, I kept thinking that that number wasn't right.
> Haven't seen a Bridgeport either.
>
> So listen to Henrik here.
>
> Danny
>
> Henrik Olsson wrote:
>> Hi Danny,
>> I think you've got that a bit wrong.... The G540 does not contain 4
>> G203's.
>> It contains 4 G250's which are rated at 60% of the voltage and half the
>> current compared to a G203 (50V/3.5A vs 80V/7A), that makes quite a bit of
>> difference when talking about Bridgeport sized machines.
>>
>> I'm pretty sure that a G540 and the 200oz-in NEMA23 motors you referred to
>> are too small for a Bridgeport without going to ridiculous reduction
>> rations
>> between the motor and screw. Most Bridgeport conversions I've seen runs on
>> 600-1200oz-in step motors.
>>
>> /Henrik.
>>
>>
>
>