Re: [CAD_CAM_EDM_DRO] Re: mill drill conversion

On Wed, 10 Sep 2003, Kim Lux wrote:

> I highly recommend ditching the belt on that conversion and using direct
> drive. You might be happy with 100 IPM now, but why not have faster
> rapids ? 2500 pounds of push is way overkill on a mill drill. 1000
> pounds would be lots.

Why not keep the belt drive and just make the drive ratio 1:1? That way
you can play around with it to see what works best.

C|

> On Wed, 2003-09-10 at 10:49, Jon Elson wrote:
> > jroark31 wrote:
> >
> > >I will be replacing the ACME screw with ball screws .2 lead. I
> > >would really like to be able to cut wood and plastic at 60ipm max
> > >and rapid around 100ipm. I would also like to cut Aluminum and Steel
> > >(much slower). I currently have 3 servo motors peek torque of
> > >430oz_in 1700rpm I am using Gecko G320 drives.
> > >
> > If the 430 Oz-In is continuous, that will be more than enough. Even if that
> > is the peak torque, it will likely be enough. 100 IPM requires 500 RPM
> > on the screw, so a 3:1 belt ratio would still allow you to reach that speed.
> > With 3:1 reduction, you get 430 * 3 = 1290 Oz-In at the screw. That
> > is 80.6 Lb-In. That will produce 2535 Lbs of linear force at the machine
> > slide! You say you need MORE than a TON?!!!
> >
> > Jon
> >
> >
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> --
> Kim Lux <lux@...>
>
> 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
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> 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/
>
>
>