Re: USB 2.0 CNC control and high speed stepper driver

Hi,

I called Sensa today, and they only sell the complete system
including, drivers power supply and software for something around
8500 euro. That's way more than the cost of my complete machine, I
will just have to wait untill the G2002 is finished.
If USB is so much better (faster) then the parallel port, is it
possible to use the USB-port with USB to parallel port cable, and
then connect the driver (or break-out board)?

Hugo


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "hugo_cnc" <Hwatering@h...>
wrote:

> Hi all,
>
> If anybody has more questions post of mail them, I will contact

them

> on monday and will try to get some answers. The high torque at high
> speed is mostly a voltage thing (I think), I remember they use the
> Powermax steppers and used 160 V at 12 A, to make sure they

wouldn't

> overheat they used heatsinks and fans direct on the steppers.
>
> Hugo
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Carlos Guillermo
> <carlos@v...> wrote:
> > Hi Hugo -
> >
> > Cool! We'd all love to hear more about this, but the language
> > barrier might be a problem. There seem to be some skeptics of
> > running steppers at 2400rpm and 80% rated torque, so if you can,
> > could you get more details on that?
> >
> > Regards,
> >
> > Carlos Guillermo
> > VERVE Engineering & Design
> >
> > -----Original Message-----
> > From: hugo_cnc [mailto:Hwatering@h...]
> > Sent: Friday, March 07, 2003 3:23 PM
> > To: CAD_CAM_EDM_DRO@yahoogroups.com
> > Subject: [CAD_CAM_EDM_DRO] Re: USB 2.0 CNC control and high speed
> > stepper driver
> >
> > Hi
> >
> > I know one company who use their systems, I've visted them about a
> > year ago, the control they used cost about 5000 dollar, I'm not
> > sure
> > what their prices are now. The motors they use get indeed very
> > hot,
> > so they use a lot of cooling (cooling body and a fan), I also know
> > they done a lot of searching of finding the right motor (low
> > resistence). The video is very impressive and I will contact them
> > next week, easy for me because it is a dutch company and I'm also
> > dutch. I will let know the results.
> > Thanks you Carlos for post.
> >
> > Hugo
> >
> >
> >
> >
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, Carlos Guillermo
> > <carlos@v...> wrote:
> > > Hi Jon -
> > >
> > > No idea about the cost. I considered calling them, but I've
> > gone
> > > off on too many tangents recently, and need to get some work
> > done!
> > > Is anyone familiar with the gantry machine they show? It says
> > > "Stolle" on the base casting, but I couldn't find any info about
> > > CNC machines on their website.
> > >
> > > Regards,
> > >
> > > Carlos Guillermo
> > > VERVE Engineering & Design
> > >
> > > -----Original Message-----
> > > From: Jon Elson [mailto:elson@p...]
> > > Sent: Friday, March 07, 2003 1:47 PM
> > > To: CAD_CAM_EDM_DRO@yahoogroups.com
> > > Subject: Re: [CAD_CAM_EDM_DRO] USB 2.0 CNC control and high
> > speed
> > > stepper driver
> > >
> > >
> > > Carlos Guillermo wrote:
> > >
> > > >Hi all -
> > > >
> > > >Anyone familiar with these guys? They seem to have some very
> > > >unique stuff, such as a way to drive steppers at 80% torque up
> > to
> > > >2400rpm, and a USB 2.0 CNC control board. They also have a
> > > >picture of an interesting 3-axis gantry, and a video of it in
> > > >action.
> > > >
> > > >http://www.marketplace.nl/sensa/index.html
> > > >
> > > >
> > > Very impressive! But, I suspect they need special motors to get
> > > this
> > > performance.
> > > I doubt you could get this with standard steppers, although the
> > > 120 V
> > > supply will
> > > help speeds a bit. The motors will likely run REAL hot when
> > > running, though.
> > >
> > > Any idea what all this costs? They don't seem to say anything
> > > about that!
> > >
> > > Jon
> > >
> > >
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