Re: BOSS5 to Mach2/Gecko

Brady:

I run API CMD-260 drives (pretty similar to the Geckos for the
purposes of this conversation). I'm using the original NEMA 42's at
half winding. I built the power supply (67 volts DC) and I think I'm
running the drives at 4 or 5 amps if I remember right. This
Bridgeport "can" run scary fast (I won't bore you with the specs
because the original dovetail table has been replaced with one on
linear rails, so iuts kinda unique), but I've slowed it down to about
80 ipm. I run MACH2.

The NEMA 42's are fine, the Geckos should be fine. Given the
relativly low cost of a new power supply (I was able to salvage the
transformer, bridge and capacitors from the original NC setup, but it
may differ in your case) compared to the cost of Gecko smoke, I'd be
tempted to chuck (and/or canibalize) the existing supply and build a
new one. My understanding is that, while the original power supply
ran at a higher voltage, the way the Geckos work, a lower voltage
power supply should give you adequite performance.

Jeff

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "braidmeister"
<braidmeister@y...> wrote:

>
>
> I need some help/advice regarding the conversion of a BOSS5
> Bridgeport to Gecko/Mach2 control. I plan on retaining the BP power
> supply and steppers and running Campbell's breakout board, Gecko
> 201/210s and Mach2. Has anyone done this sucessfully? I don't know
> much about the BP power supply or steppers (other than they are
> NEMA42 frame), and that both are good from what others tell me. I

am

> not sure if the BP motors require more amperage than the Geckos can
> put out. Can anyone help me out who has done this?
>
> My other option at a higher cost is to run Larken drivers which are
> beefier than the Geckos. Max they will do is 1/8 step, no 1/10.

They

> will handle 16A/phase, although some tell me that they are a bit
> noisy compared to the Geckos.
>
> Not interested in servos. Not interested in off the shelf kits.
>
> Thanks!
> -Brady