Re: [CAD_CAM_EDM_DRO] LEAD SCREW"

Probably a micrometer thread.

At 10:42 PM 1/15/03 EST, you wrote:

>In a message dated 1/15/2003 11:52:22 AM Central Standard Time,
>peja@... writes:
>
>
>> I can buy one meter long screw, 20 mm diameter with four triangular tooths
>> per milimeter. (I think it's used in wood constructions).<<
>
>This would be 0.25 mm per thread? That is VERY fine, as would be used on

1.0

>mm. screws! Are you sure you don't mean four mm. per thread? I use 20 mm.
>dia. screws with 4 mm pitch on my machines (but ACME threads).
>
>> It seems to me usefull as axis leading screw. HOW MUCH IT CAN BE

PRECISE ?

>
>If this material you describe is simple V-thread "All-Thread" ("Fastener
>stuff"), it is not only probably not very precise, but the surface of the
>threads is rough, intended for fastener-nuts which are turned with a WRENCH
>("spanner" in England), and let remain still forever!
>
>Jan Rowland
>
>
>
>
>
>[Non-text portions of this message have been removed]
>
>
>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@...
>Moderator: jmelson@... timg@... [Moderator]
>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/
>
>
>
>

Regards, Hoyt McKagen


Anti-virus request: Please do not add this email addy to address books
Belfab CNC - http://www.freeyellow.com/members/belfab/belfab.html
US Best MC - http://www.freeyellow.com/members/batwings/best.html
Camping/Caving - http://www.freeyellow.com/members/batwings/caving.html
Religious strife proves there's no god