Re: [CAD_CAM_EDM_DRO] Re: Source for Baby Bridgeport Ballscrews?

Jon, Scott, The Rockford screws I have on my other B'port have a yoke that is pretty flimsy looking too. Even less substantial than the stock Acme yoke. Although if you look at how it mounts in the mill. It's quite adequate. The mounting holes to ballnut axis distances are very short and well supported. It;s kind of a deceiving design. If you take into consideration the directional forces and look at the casting and how it's made it makes sense.

No luck on a set that will just drop right in on the Baby bridgeport yet.

I'll wind up making them from stock screws and nuts from Mcmaster-Carr. Just a matter of hotsawing them to length and turning/grinding the ends down. Hopefully they are like Thompson shaft and once the .080" case is turned back the center can be machined and threaded. I'm assuming the are to prevent warpage during heat treat. I'll be finding out. I'll keep everyone posted.

Ron





Jon Elson <elson@...> wrote:
Polaraligned wrote:

>Price is right. I just think the yoke looks a bit wimpy.
>http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7521132928&rd=1&sspagename=STRK%3AMEWA%3AIT&rd=1
>
>

The Bridgeport yoke is pretty winpy, too. I made a much more stout one for
my retrofit, and lost 2 inches of Y travel in the process! I'm not sure
you can
add a lot of beef to the yoke without causing interference.

Jon



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









[Non-text portions of this message have been removed]