Re: Timing Pulleys - Camshaft?

Hello,

No, it's not nuts... Camtech in Canada sold hundreds of machines
which used #25 chain and sprockets instead of leadscrews or
rack/pinion. Many are still in use all over the world...

And the hobby machine Autoroute also use chain drive.

Hope this helps,

Ballendo

FWIW, newer Cam tech machines use rack/pinion.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Markwayne <markwayne@m...>
wrote:

> Would it be nuts to use roller chain and sprockets in small sizes,

like

> 10 or 20.
>
> Mark
>
> turbulatordude wrote:
>
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "vrsculptor"
> > <vrsculptor@h...> wrote:
> >
> >>Most overhead cam engines today use timing belts. This should
> >>provide a cheap source for 2:1 timing pulleys. Do any of you know
> >
> > if
> >
> >>they are standard profiles? They would be a great solution with
> >
> > just
> >
> >>a little hub work if you could get the right size belts. I don't
> >>think you can shorten / splice a fiberglass backed timing belts.
> >>
> >>I freaked when I saw the price of pulleys for my mill's knee

axis.

> >>More than the motor, encoder and Gecko combined. If camshaft
> >
> > pulleys
> >
> >>won't work I will cut my own.
> >>
> >>Roger S.
> >
> >
> >
> > Where did you look and what sizes are you looking into ?
> >
> > and you are realizing why so many buy bigger motors and use

direct

> > drive.
> >
> > DAve
> >
> >
> >
> > 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@a..., timg@k...

> > Moderator: pentam@c... indigo_red@q... [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/

> >
> >
> >