Re: [CAD_CAM_EDM_DRO] 20 degree gear racks

Tyson,

Please take a look at the Ez-Router web page www.ez-router.com . Then look
at the belt reduction drives that they have. I am impressed with the
drives. I plan on buying two along with the 6' rack soon.

Robert Colin Campbell
Bob Campbell Designs
www.Campbelldesigns.com
Mach 2/3 breakout boards
Relay boards
Spindle Speed boards
Stepper motors
Plasma Torch Height control

----- Original Message -----
From: "Tyson S." <timbercutter@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, November 08, 2006 6:47 PM
Subject: Re: [CAD_CAM_EDM_DRO] 20 degree gear racks


>I am not opposed to using anything at this point. It's just that all
> the posts I have read indicate that 20 Degree is the new way to go for
> smoothness. But if I can get accuracy and good life expectancy from
> 14.5 degree then that is fine by me. I plan to spring load my final
> drive pinion gear into the rack to eliminate backlash. This is my first
> machine so it needs to be on the cheap. If the whole cnc thing works
> out for me then the next machine will involve things like Blanchard
> Grinders and Ball Screws instead of Sand Paper and Gear Racks :)
>
> Tyson, Rainy Oregon
>
> --- Robert Colin Campbell <bob@...> wrote:
>
>> Tyson,
>>
>> Let me jump in here with a different suggestion that may help
>> someone.
>>
>> John Johnson at Ez-Router will sell their very nice belt reduction
>> drives
>> and 6' of track. They use 14.5 deg rack and pinion gears. After
>> talking with
>> John, he has me convinced that 14.5 deg is the way to go.
>>
>> Their rack is not drilled, but I have been assured that only the
>> outside is
>> hardened and once you get through the surface the drilling gets
>> easer.
>>
>> I have a project coming up soon and I will be taking John up on his
>> offer.
>>
>> Ez-Router also uses Bishop Wisecarver wheels.
>>
>> Robert Colin Campbell
>
>
>
>
> __________________________________________________________________________________________
> Sponsored Link
>
> Talk more and pay less. Vonage can save you up to $300 a year on your
> phone bill.
> Sign up now. http://www.vonage.com/startsavingnow/
>
>
> 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
>
>
>
>