Re: [CAD_CAM_EDM_DRO] Announcement: Mach3 is now closed loop!

Perfect. If anyone decides that want to add encoder feedback and their
stepper motors are not set up with either a dual shaft or the back is not
machined for the encoder mount then they may want to look at the stepper
motors I sell. The dual shaft versions come with a .250 shaft and has the
back cover machined and drilled for a standard 1.81" bolt circle encoder
mounting flange such as the usdigital E2-250-200-G encoder.

Dan Mauch
Camtronics Inc
www.camtronics-cnc.com
www.seanet.com/~dmauch
low cost stepper motors , cases for gecko drives

----- Original Message -----
From: "R Rogers" <rogersmach@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, July 22, 2005 1:42 PM
Subject: [CAD_CAM_EDM_DRO] Announcement: Mach3 is now closed loop!


> (This was posted earlier under a different subject and Bill asked that I
> post it again.)
>
> Group, I've been holding off announcing this as we are waiting on
> production boards from the manufacturer. Jim Cullins of Sound Logic
> and myself have been working on an encoder interface for Mach
> systems
> which closes the encoder loop back to the software. I'm happy to
> announce
> that after revisions and much testing that an interface does indeed
> exist and works perfectly.
>
> A macropump monitors Software DRO's and Encoder DRO's at 10
> samplings
> per second and faults the system on a discrepancy value set by the
> user.
> A "following error" value is entered into an onscreen DRO. The
> system
> will enter "feedhold/pause" and halt all motion until the situation
> is
> corrected. So this means no more ruined parts on systems prone to
> losing
> position. And that potential exists for practically any open loop
> system. I have been using this on a test machine (Bridgeport) and it
> works
> very well. I adjusted acceleration and velocity higher to purposely
> cause lost postion for testing and over the past few months the
> system has
> performed perfectly every time. The board is connected via a second
> parallel port that must be installed in the PC. This also allows the
> user
> to run at faster feeds and speeds without the fear of losing
> position.
>
> In a count discrepancy, an onscreen LED next to the offending axis
> will
> flash red, the machine will halt all motion on feedhold and a 90 db
> sonalert will sound and alert the operator of the situation. It will
> allow
> the operator to jog cutter away and correct count discrepancy. This
> is
> done by a "sync" key that has been added next to each axis as well.
>
> Mach3 is now closed loop. In addition, the board includes 4 onboard
> output relays to control auxillary devices. And up to 4 additional
> inputs
> for probes, MPG's, OEM triggers, etc. Also provides external power
> supply for the encoders. Which eliminates the need for encoders with
> less
> than 50 ma draw for the Geckos. Can use any encoder now. The
> installation is very easy and I will offer a complete package with
> everything
> needed for a hassle free upgrade. Also with this system. Mach3 may
> be put in "reset" and the controller becomes a manual DRO. I will
> include the macropump and screenset designed for this use.
>
> The board and more info can be seen at:
>
> www.rogersmachine.net
>
> As I stated, we have no boards ready for shipment and I will post
> when
> they are available which should be any day.
>
> This makes Mach a much better system.
> Thank You, Ron
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
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