On Fri, 12 Jun 2009, Wayne Patterson wrote:
> Date: Fri, 12 Jun 2009 09:04:39 -0500
> From: Wayne Patterson <way...@wavelinx.net>
> Reply-To: "Enhanced Machine Controller (EMC)"
> <emc-users@lists.sourceforge.net>
> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
> Subject: [Emc-users] X2 conversion
>
> Hey Guys,
> I am at a point that I need to convert my Sieg X2 mill to CNC control. I
> have found two kits/plans online and wanted to know if anyone on the
> list has used them? They are the "Steele Company's" conversion kit/plan
> and the "FigNoggle Designs" kits/plans. For what it is worth I plan on
> building the parts so I will be using the plans and not the kits.
> Right now my biggest concern is the electronics. While I am confident in
> building parts for the machine, the electronics is some what daunting. I
> have bought three "Linistepper" driver boards and assembled them with
> satisfactory results. But I 'm lost when it comes to the controllers.
> From what I have read I am leaning to the Mesa 7I43 to connect the
> driver boards to the PC. I also want to add DRO using ShumaTechs
> DRO-350. And was wondering if that could be integrated into EMC some
> how. If anyone has used any of these parts and/or plans and could give
> me some advice it would be greatly appreciated. My funds are limited and
> I don't want to waste it on things that will not work or conflict with EMC.
> Thanks in advance for any help!
> lennywayne
>
The 7I43 is probably overkill for what you are doing. EMC is quite capable of
driving your stepmotors up to stall speed via direct parallel port connection.
The 7I43 makes sense if:
1. You have microstepping or high voltage-high performance driver so you need
more than 20-50K steps/sec
2. You have a servo system
3. You need more or specialized I/O
Peter Wallace
Mesa Electronics
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