Re: [CAD_CAM_EDM_DRO] Lathe manual tool changing

We were in the same boat about 4 months ago. We bought a quick change
dovetail toolpost and haven't looked back.

Don't buy the piston type. Buy the type that jams the dovetail. It is
called the wedge type. The positioning accuracy and holding power is
much better with these.

We purchased an inexpensive unit from Enco and are quite happy with it.

The only thing I don't like about these tool holders is that there is no
way to mount a tool at an odd angle, ie 45 degrees, unless it is built
into the tool holder. One can get multi position quick change tool
holders, but they are very expensive.

We had to make a special base to properly mount our quick change tool
holder. We totally removed the compound slide.

WE have a bunch of odd ball tooling that we needed to mounted on quick
change toolholders. We bought a dovetail milling cutter and machined
our own quick change tool holders on our CNC mill.


Kim

On Wed, 2003-12-17 at 06:58, jaimea@... wrote:
> Hi all,
>
> after a quite succesful conversion of my lathe to CNC / TurboCNC, I'm
> now dealing with the problem of tool changing. My 4-way toolposts are
> not precise enough, with a positioning error of +-0.1mm, way too high.
>
> I'm looking at comercial (manual) quick change tool posts, and wonder
> how precise they are.
>
> The toolposts I'm looking at are those with a dovetail, piston type
> or whatever, and cost in the $100 - $150 range.
>
> My lathe is in the 8" range.
>
> Any advise? Will this QCT work? Has anyone devised other simpler
> solution?
>
> Thanks in advance!
>
> jaime
>
>
>
> 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
>
>
>
> Yahoo! Groups Links
>
> To visit your group on the web, go to:
> http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/
>
> To unsubscribe from this group, send an email to:
> CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to:
> http://docs.yahoo.com/info/terms/
--
Kim Lux <lux@...>