Re: [CAD_CAM_EDM_DRO] Re: RoboFac / Stewart-Gough Platform / Hexapod Milling Machine

----- Original Message -----
From: "Simon Arthur" <chroma@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, September 27, 2005 2:11 PM
Subject: Re: [CAD_CAM_EDM_DRO] Re: RoboFac / Stewart-Gough Platform /
Hexapod Milling Machine


> Mike wrote:
>
> >As someone who makes their living writing code for embedded Linux
> >devices, I can't completely disagree with him, except when he says
> >that EMC doesn't have the capabilities he needed for his machine. It
> >almost certainly does.
> >
>
> Let me be specific. EMC uses constants for the endpoints of the heapod
> actuators. In order to run a hexapod that has different dimensions than
> what is defined in advance, you have to re-compile EMC.
>
> The RoboFac software lets you define your own hexapod geometry using the
> GUI. It also has a calibration feature so that you don't have to build
> your hexapod to exact dimensions.
>
> I tried re-comiling EMC on a BDI box, but the compile didn't work; it
> errored out.
>
> I wanted to develop my control software on my regular development
> workstation, not on the EMC-BDI machine down in my workshop.
>
> I found EMC's GUI to be confusing and ugly. Only one of the several GUIs
> for EMC supported hexapods at all. The configuration files are also
> confusing when it comes to setting up hexapods.
>
> These were some of the reasons I chose to develop from scratch, rather
> than adding to EMC.
>
> > [...]
> >Granted, it's a complex thing to control a machine tool and the code
> >will reflect that complexity. But EMC is an example, IMHO, of what I
> >call "professor code" or "PhD programming".
> >[...]
> >
> >
>
> If I had an ordinary 3 axis milling machine, I'd probably use EMC to run
> it. I was impressed by its features and I occasionally refer to the
> source code to see how they deal with certain problems I have with
RoboFac.
>
> And I have yet to have a single person ask how to use RoboFac to drive
> an actual working hexapod or ask me how to use the calibration system.
>
>
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