RE: [CAD_CAM_EDM_DRO] Re: milling pockets with EMC

Ok, maybe I'm missing something but...

1) Logically, since the cutter radius is just that, the offset is that
radius, right?
2) Can somebody explain how CNC logic perceives a difference between a
"left" radius and a "right" radius?

Thanks,
Andrey

-----Original Message-----
From: Jon Elson [mailto:elson@...]
Sent: Saturday, April 02, 2005 12:45 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Re: milling pockets with EMC


david_margrave wrote:

>
>
>
>>Hmm, must have been too complicated for the author of that book to
>>
>>
>figure
>
>
>>it out. Cutter radius compensation is definitely one of those things on
>>CNC that gets people gnashing their teeth, especially the first few
>>
>>
>times
>
>
>>they do it.
>>
>>
>
>then my next question is, at some point do you have to 'change sides'
>and change from left to right cutter radius compensation?
>

Generally not. The left/right means on which side the cutter is, as seen by
a little person walking behind the moving cutter. So, as long as the cutter
stays in contact with the side of a part, the left/right doesn't have to
change. As long as your cutting direction (and this would mean climb
milling
vs. conventional milling) doesn't change, then you can keep the same
offset side.

If you were cutting alternately with climb and conventional milling,
then this
might be a problem.

Jon



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@... davemucha@...
[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


Yahoo! Groups Links