On 22/12/2018 17:24, Gerhard Reithofer wrote:
> Hi Theo,
> On Sat, 22 Dec 2018, Theo wrote:
>> Gerhard Reithofer  wrote:
>>> Sounds interesting, but how do I controll these shields with a
>>> raspberry?
>>
>> Using Arduino firmware like Grbl:
>> https://github.com/gnea/grbl/wiki
>> or other G-Code interpreters
>> https://wiki.shapeoko.com/index.php/G-Code_Interpreters
>
> That's realy interesting but it's strongly NC oriented. I can control my
> 3d-printer via USB by sending S3G commands (sailfish fimrware) but
> that's too specific bound to the hardware and to the XYZ thinking.
>
> What I'm dreaming of is a controller which allows defining a step input
> (including speed and maybe acceleration paramaters) and the motor moves
> to the position without any additional input. The final positition is
> sent back or confirmed on request via the used interface.
> Think of an axis contorl of a robot arm. The combination of several such
> modules can be controlled by a raspberry because the hardware part and
> the real time components are not important on that level. As example it
> I would be very simple add a GUI for programming, etc.
>
> Is there a cheap solution known?
>
With that spec I'd certainly be thinking 'arduino or picaxe and stepper
motors'



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