One option is to find the local freight companies in your area. A friend told me that he goes to a monthly auction at a freight company. seems if a package breaks, and they have no way to identify the parts, they sell them at auction. I haven't looked at this but it is a possible local source. Also, check in the local paper for other auctions. you may find something neat. And don't forget yoru scrap yard. Mine has a full height (6 foot) rack with clear plastic door. I think he wants $100.00 for it. nothing inside and it's been in the weather. He gets others that are pulled from old telco stuff. Dave --- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan <stefan_trethan@g...> wrote: > thanks for the tip.. > > but surplus market is, letc call it nearly non-existent. > well such markets are for car parts, household stuff, and lots of other > things. > but seldom for technical parts. > > there are some professional surplus resellers but the prices are way too > high. > > the only option i know is ebay... > > but thanks for the idea, maybe someone else can get such a rack... > > regards > stefan > > > > On Thu, 31 Jul 2003 18:17:55 -0400, GraySoul Dragon <danbarlow@r...> > wrote: > > > Quoting Markus Zingg <m.zingg@n...>: > > > >> Hi Stefan > >> > >> I figure CNC drilling is definately on topic - at least if using > >> lasers to drill and "mill" PCB's is on topic too :)) (sorry guys, > >> could not resist - AND it was interesting) > >> > >> With regard to the slides, the slides used in the link are NOT those > >> I refered to. The ones I refered to DO NOT use ball bearings. Instead > >> the balls are palced along the whole slide making it extremly stiff > >> and precise. > > > > I don't know how the surplus market is in your area, but here we have > > a semi-monthly auction for surplus goods from all over the state as > > well as the state university system. > > > > There are often mainframe racks with very well engineered rack slides > > going for US$10 or less for the whole rack. Using the standard rack > > as the mechanincal base is easy, just lay it on its back. Most of them > > are steel. If you get one of the smaller hard drive units it has > > four very nice slides in it that are rated for several hundred pounds > > and are very smooth so as not to crash the drive heads. > > > > Other surplus equipment can have very good positioners also -- I once > > got a Matrix camera for $10 that had meter-long threaded rods with > > recirculating ball bearing mounts, and the complete motor and driver > > schematic taped inside the door. > > > > Sometimes scavenging gets you a lot more than you'd think. ;) > > -Dan Barlow > > > > > > Be sure to visit the group home and check for new Bookmarks and files: > > http://groups.yahoo.com/group/Homebrew_PCBs > > > > To unsubscribe from this group, send an email to: > > Homebrew_PCBs-unsubscribe@yahoogroups.com > > > > > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > > > > >
Message
Re: drawer slides for cnc
2003-08-01 by Dave Mucha
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