[TriEmbed] Seeking Expert for Controlling Stepper Motors.

Carl Nobile carl.nobile at gmail.com
Sun Mar 23 13:00:04 CDT 2014


Jahn,

I'm currently working on a motor controller to use with brushed DC motors,
however, to use it with a steeper motor is a software change. The current
design will handle up to 15 amps, but can go higher with some component
changes. I'm still a month or so away from getting this all to work. This
will use a dedicated Atmel micro-controller. I estimate the board size to
be in the 8 x 10 cm range, one board per motor. Jahn, what are the specs of
the motor you will be using? Do you need micro-stepping. Are the motors
unipolar or bipolar (Number of wires)? Anything else would be helpful also.

Carl



On Sun, Mar 23, 2014 at 1:42 PM, Sofie Permana <shperman at ncsu.edu> wrote:

> An off-the-shelf solution that I used is Little Step-U motor driver
> http://www.parallax.com/product/27938. I use it to control the stepper
> motor on my current project. It communicating through serial communication,
> and already have a complete drive system, can do half/full step, and can
> incorporate emergency switch input (http://www.tla.co.nz/littlestep.pdf).
> You just need to send the desired speed or position and it'll take care of
> the rest (calculating and sending command). It is pretty easy to use and I
> don't need to redo making the driver.
> I connect mine to PC using with
> http://www.ftdichip.com/Products/Cables/USBTTLSerial.htm.
>
> Sofie
>
>
> On Sat, Mar 22, 2014 at 6:07 PM, Shane Trent <shanedtrent at gmail.com>wrote:
>
>> I have a grbl on uno with shield setting on my desk.  Does 30v and 2.5A
>> per coil. Can you share more about your specs and or application?  TinyG is
>> nice and gives you smooth coordinated motion on up to four channels.
>>
>> Shane
>>>> Sent from Mailbox <https://www.dropbox.com/mailbox> for iPhone
>>
>>
>> On Sat, Mar 22, 2014 at 5:47 PM, Jahn <animoduro at gmail.com> wrote:
>>
>>>  We are looking for a passionate expert who is able to put together a
>>> reliable solution for controlling up to three (3) but at least two (2)
>>> stepper motors. We are flexible with the choice of hardware (Arduino,
>>> BeagleBone Black, etc.).
>>> Thank you for your interest!
>>> Durham, Tel: 919-399-1589
>>>
>>
>>
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>>
>>
>
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>


-- 
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Carl J. Nobile (Software Engineer)
carl.nobile at gmail.com
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