Re: [CAD_CAM_EDM_DRO] DRO questions

Doug,
Right I got that from you earlier.
Don't you think that uploading an array of coordinate will help keep it accurate and avoid operator error ?
Thanks for the offer to help with the arithmetic... I'm sure I can handle it :-)
Best Regards
Hans W


Doug Fortune wrote:

> Hans Wedemeyer wrote:
> >
> > Jan,
> > OK I understand, but just how would you determine that X,Y is correct without
> > first having entered data for it... ? Entering data by the DRO keyboard has to be
> > cumbersome and error prone.
> > Anyway, I'm planning to allow the user to upload a file of X,Y coords. to the DRO.
>
> Hans:
>
> Here is the step by step way a bolt circle is done on a commercial
> DRO:
>
> #1 Position the mill in the center of the hole, hit reset
> the DRO now says 0.0000 , 0.0000
>
> #2 Go to the first bolt circle hole (usually straight up or down in Y,
> or straight left or right in X), whereupon one of the scales reads the
> radius. If not, go to an X,Y on the drawing (offset from the center)
> and the radius is sqrt (x^2 + y^2) but the human doesn't worry about
> that, the DRO just uses this info to get the radius
>
> #3 Enter the number of holes (say 5). Then you hit "next"
>
> #4 The DRO now says (X,Y) and you handcrank it over to
> 0.0000, 0.0000 (or close to that).
>
> #5 Then you drill, then you hit "next"
> Loop back to #4 as many times as it takes (5 holes in this example).
>
> >From beginning to end it takes maybe 30 seconds plus the time it takes
> to physically drill the hole. Time is ticking. The boss is watching,
> you have 70 more of these to do before lunchtime.....
>
> Hans, contact me offline and I'll give you the source code for the
> math (sines and cosines and all that jazz)...
>
> Doug Fortune
> http://www.cncKITS.com
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> .
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@..., timg@...
> Moderator: pentam@... indigo_red@... [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> 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 to be 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........
> bill
> List Mom
> List Owner
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/