RADDS controller?

General Electronics chit chat
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jonnybischof
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Re: RADDS controller?

Post by jonnybischof » September 27th, 2016, 3:02 am

The Edison can't compete with the RasPi 3 by a long shot :)

I believe the bare edison module is (while being much weaker overall) even more expensive than the RasPi 3 (which is after all a complete board with connectors and power supply...).

The Edison mostly has one advantage over the Pi - it's a lot smaller. Great for IoT stuff, but I don't think it would be particularly useful to control a 3D printer - at least not in it's current state.

/edit:
Confirmed, the Edison module starts at about 55$ on mouser.com (with different versions available) while the RasPi 3 is still sitting at a beautiful 35$ selling price.
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Jonny

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ivan.akapulko
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Re: RADDS controller?

Post by ivan.akapulko » September 27th, 2016, 3:12 am

Absolutely agree.

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LePaul
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Re: RADDS controller?

Post by LePaul » September 27th, 2016, 9:59 am

Any 3D printers or CNC's use the Pi for a brain?

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jonnybischof
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Re: RADDS controller?

Post by jonnybischof » September 27th, 2016, 10:09 am

Haven't heard of any. Like mentioned before, the Pi isn't suitable as a direct controller - because it doesn't have a real-time OS. Even my own platform will "only" use the Pi to shove the gcode data into the FPGA which is the actual real-time controller. (this is simplified of course. The Pi does in fact do more than just that, but it doesn't do any of the control tasks itself)
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Amedee
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Re: RADDS controller?

Post by Amedee » September 27th, 2016, 11:53 am

LePaul wrote:Any 3D printers or CNC's use the Pi for a brain?
Machinekit (if you are brave)
Phil.

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jonnybischof
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Re: RADDS controller?

Post by jonnybischof » September 28th, 2016, 3:06 am

Amedee wrote:
LePaul wrote:Any 3D printers or CNC's use the Pi for a brain?
Machinekit (if you are brave)
Haha, the term bloatware comes to mind :P
This thing really tries to do everything at the same time. Wonder when that's ever going to work well :)
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Jonny

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Meduza
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Re: RADDS controller?

Post by Meduza » September 28th, 2016, 6:51 am

I actually see machinekit as very interesting as it is a fork of LinuxCNC that are rewriting stuff to be able to run on embedded systems and get better separation of backend/frontend.

To me most of the controller boards are totally uninteresting for CNC use, since i cannot hookup a monitor and a control panel, where i can see DRO, use MDI mode, preview my gcode etc. It also got a very nice hardware abstraction layer and a software PLC to program event chains for toolchangers, automatic tool measuring etc. Fire-and-forget does not work in the same way for a CNC mill as for a 3D Printer, i do not get people that just run GRBL on a arduino and run a gcode file without any feedback, that is scary stuff...

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jonnybischof
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Re: RADDS controller?

Post by jonnybischof » September 29th, 2016, 2:35 am

True, I would never run a CNC on something as crude as a 3D printer controller :D
On that note - I'm going to use an EdingCNC controller for my CNC build (which may or may not be finished by the end of this year :P)
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Jonny

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