interesting development

[Roy Nielsen]

https://www.arrow.com/en/products/bbblue/beagleboardorg

I wonder if this might work - possibly with ROS to control the firepick . . . nice that it has jtag support.

Regards,

-Roy

[Michael Anton]

Sure, if we could ever figure out how to calibrate the FPD, and get rid of all of the error sources...

[Karl]

Cool board. Agree with Michael.

Currently testing neural net and genetic algorithms for FPD calibration. Beastly complicated. 

[Roy Nielsen]

So, has everyone given up except the most die hard?

Thanks,

-Roy

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[Joshua Pritt]

I'll never give up!  I will keep helping as much as possible!

[Karl]

Yes. It's hard. But I'm not dead yet.

[Douglas Pearless]

Hmm,

Maybe I should come a wee bit out of Stealth mode and share that I am slowly working on a Raspberry Pi + FPGA implementation for real-time motor control (and also has a OpenCV camera interface) and a port of Smoothie.  It will also be possible for Karl to control all of the real-time stuff via PERL, provided the source system can keep up… 

This gets rid of those seriously underpowered ARM processors for real-time work where they simply run out of computing horsepower to do all the stuff we want...

Cheers

Douglas

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[Karl]

:o

[Rich Obermeyer]

@Douglas,

Curious why you didn't go with a Zynq type solution ranther than Rasp PI.

I assume you are thinking the FPGA can handle the stepper motors.

What else can the FPGA do for you in this APP?

I invested in snickerdoodle some time back and its about to ship! 

 

https://www.crowdsupply.com/krtkl/snickerdoodle

Its tiny, powerful and has lots more IO than you would ever need for this.

Wondering if it would be a better choice than trying to kludge up an FPGA to a Rasp PI.

I have a Rasp PI driving my SeemeCNC Delta 3D printer already using AstroPrint.

Would be very cool to have the 2 functions combined.

I use wireless to drive it now.

Anyway looking for your feedback on pros and cons you went through.

On Tuesday, March 14, 2017 at 1:47:46 PM UTC-7, Douglas Pearless wrote:

[Charles Steinkuehler]

On 3/14/2017 3:47 PM, Douglas Pearless wrote:
> Hmm,
>
> Maybe I should come a wee bit out of Stealth mode and share that I am slowly
> working on a Raspberry Pi + FPGA implementation for real-time motor control (and
> also has a OpenCV camera interface) and a port of Smoothie. It will also be
> possible for Karl to control all of the real-time stuff via PERL, provided the
> source system can keep up…
>
> This gets rid of those seriously underpowered ARM processors for real-time work
> where they simply run out of computing horsepower to do all the stuff we want...

Are you aware Machinekit runs on Soc+FPGA parts from Xilinx and
Altera. It incorporates the open-source Mesa.net FPGA motion control
code:

https://github.com/machinekit/mksocfpga

...on top of the Machinekit HAL and hard-real-time layers. There's
also a full gcode and CNC stack, but you can pretty easily port
whatever you want to run on top of the real-time layer.

I've also made an adapter card that lets you hook any of the Mesa DB25
daughter boards to a Terasic DE0-Nano-Soc:

http://blog.machinekit.io/2016/11/you-will-recall-that-while-back-charles.html

--
Charles Steinkuehler
cha...@steinkuehler.net

[Karl]

Charles, thanks for the MachineKit link. I will rely on that for firenodejs inspiration. :D

[Douglas Pearless]

I was not aware of this 😄

Time to investigate!!!

Sent from my iPhone