Re: [CAD_CAM_EDM_DRO] Re: Need help with SuperCam step size settings

Dan,
If you'd like to test out a cue, I'll test out one of your beautiful
rings. I have a cue running on ebay right now, Item #1864180475. Check it
out.

Marv Frankel
Los Angeles

----- Original Message -----
From: "Dan Statman" <dan.statman@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, September 29, 2002 5:32 PM
Subject: Re: [CAD_CAM_EDM_DRO] Re: Need help with SuperCam step size
settings


> If you are not using backlash compensation then how can you accurately
make
> a pocket cut? The cutter is traversing back and forth across the pocketed
> region, or is spiral pocketing where the cutter is on one side of the
> backlash on the left side of the cut and the other side of the backlash on
> the right side of the cut.
>
> There are so many variables in every system that it is difficult to know
> where all the potential problems exist. For example it is possible that
> your cutter is not plumb in the X-direction. If it is slightly slanted
then
> it will cut a slightly wider pocket in the direction of the slant compared
> to the other direction. Have you trammed the head of the mill to ensure
the
> axes are perpendicular?
>
> Another thing that you can do, if you feel the error is truly
reproducible,
> is to just compensate for it in your programming. Diminish your X-axis
> dimensions by 0.1% (or whatever you think it should be). Your CAM program
> should be able to scale any single axis by any amount. This will allow
you
> to work until you figure out where the problem is. This is exactly
> equivalent to your original idea of changing the step size.
>
> If you need somebody to field test one of your cues, I would be happy to
> demo one.
>
> Daniel J. Statman, Statman Designs
> www.statmandesigns.com
> dan.statman@...
>
>
> ----- Original Message -----
> From: "SMW51" <michaelwagner@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Sunday, September 29, 2002 8:00 PM
> Subject: [CAD_CAM_EDM_DRO] Re: Need help with SuperCam step size settings
>
>
> > I currently have no x or y-axis backlash settings. I've had the mill
> > only a few days. Backlash was my next consideration once I could get
> > the x and y travel to be equal.
> >
> > I have just started to sell custom cues to some local customers.
> > I've spent the last 11 months, or so, building cues, testing them and
> > then cutting them up. Except for the ones I use. Most of the others
> > were pretty good, but not good enough. One was used by a player at
> > the BCA junior nationals and a few others are now being used (tested)
> > by local players. I don't have a web site yet. Before I try to
> > market any cues beyond the local area I want a minimum of one year on
> > some of the test cues and then some pretty intense usage (and abuse)
> > of the ones that supply to local pool rooms as demos.
> >
> > I'm almost afraid to ask what else the problem could be, but please
> > enlighten me.
> >
> > --- In CAD_CAM_EDM_DRO@y..., "Dan Statman" <dan.statman@r...> wrote:
> > > Are you using backlash compensation in your controller software?
> > If so,
> > > having it set at 0.001" too high will cause this same problem.
> > What is the
> > > backlash in your system on the Y-axis and the X-axis. I really do
> > not think
> > > your problem is with the threads of the leadscrew, but I have no
> > real basis
> > > for that, just a feeling since there are so many other
> > possibilities for
> > > this problem.
> > >
> > > Do you make custom cues? Do you have a website, I would be very
> > interested
> > > in seeing your work.
> > >
> > > Daniel J. Statman, Statman Designs
> > > www.statmandesigns.com
> > > dan.statman@r...
> >
> >
> >
> >
> >
> > >
> > >
> > > > > >At first I cut circles out of plastic. I marked them with the
> > x
> > > > and y-axis. The diameter on the y sides was acceptable. The
> > > > diameter on the x sides was off. I measured the pockets I had cut
> > > > and found a similar discrepancy.
> > > > Then I cut various sized horizontal and vertical lines
> > through .200
> > > > plastic with an endmill and measured them with dial calipers. The
> > y-
> > > > axis lines were pretty much on each time. The x-axis lines were
> > > > consistently off by .001. I'm making inlays for pool cues.
> > > >
> >
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> >
> > OFF Topic POSTS: General Machining
> > If you wish to post on unlimited OT subjects goto:
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if
> you have trouble.
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> >
> > http://groups.yahoo.com/group/jobshophomeshop I consider this as a
> sister site to the CCED group, as many of the same members are there, for
OT
> subjects, that are not allowed on the CCED list.
> >
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>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this as a
sister site to the CCED group, as many of the same members are there, for OT
subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
>
> Post messages: CAD_CAM_EDM_DRO@yahoogroups.com
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> bill,
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>
>
>
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