It could be a good option so I do not need to have a large computer for a small 
machine. As is know it is more a question about how to ideally 
increases/decrease step rate for a stepper motor?



On Fri, 18 Mar 2016 16:05:31 -0400
John Alexander Stewart <ivatt...@gmail.com> wrote:

> Just FYI - about a year ago or so I purchased from Jeff @xylotex a BBBlack
> and DB-25 cape - ran my Unimat SL CNC'd lathe just fine (feeding a spare
> Gecko G540, 2 axes of which were unused)
> 
> BBBoard from Xylotex came with LinuxCNC Machinekit on a little SDCard. An
> out of the box solution.
> 
> 
> 
> On Fri, Mar 18, 2016 at 3:50 PM, John Dammeyer <jo...@autoartisans.com>
> wrote:
> 
> > You might look at the Replicape and a BeagleBone Black.   There are several
> > other capes including one with a standard DB-25 parallel port that run
> > LinuxCNC on the Beagle.   Search for MachineKit.
> >
> > John
> >
> > > -----Original Message-----
> > > From: Nicklas Karlsson [mailto:nicklas.karlsso...@gmail.com]
> > > Sent: March-18-16 12:27 PM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: Re: [Emc-users] Stepper, ideal pulses without feedback
> > >
> > >
> > > Nice box and standard port is always good, I should think about it.
> > Steppers
> > > are for an xyz engraver so it is essentially a mini CNC machine without
> > tool
> > > changer.
> > >
> > >
> > >
> > > On Fri, 18 Mar 2016 12:00:55 -0700
> > > "John Dammeyer" <jo...@autoartisans.com> wrote:
> > >
> > > > You are welcome to look at my Electronic Lead Screw Code.  Follow the
> > > link
> > > > to the code.  It's written for a PIC in C.
> > > > John
> > > >
> > > >
> > > > "ELS! Nothing else works as well for your Lathe"
> > > > Automation Artisans Inc.
> > > > http://www.autoartisans.com/ELS/
> > > > Ph. 1 250 544 4950
> > > >
> > > >
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: Nicklas Karlsson [mailto:nicklas.karlsso...@gmail.com]
> > > > > Sent: March-18-16 11:46 AM
> > > > > To: emc-users@lists.sourceforge.net
> > > > > Subject: [Emc-users] Stepper, ideal pulses without feedback
> > > > >
> > > > >
> > > > > I am planning to use a micro controller for stepper step pulse
> > generation.
> > > > I
> > > > > have considered to use an inverter card but special purpose stepper
> > > > circuits
> > > > > are cheap so I use one of these instead. It should be possible to
> > feed
> > > > timer
> > > > > values then toggle should happen via DMA timer output compare values.
> > > > >
> > > > > Can anyone suggest how an ideal step generation curve should look?
> > > > > Constant acceleration up to top speed? Constant deceleration from top
> > > > > speed to zero? Or just stop generating pulses?
> > > > >
> > > > > Regards Nicklas Karlsson
> > > > >
> > > > >
> > > >
> >
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> Accelerate data analysis in your applications with
> Intel Data Analytics Acceleration Library.
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