Re: Homemade high-speed spindles/speed multiplier. What bearings to use?

Check out Dave's web page.
http://www.buildyouridea.com/cnc/spindle_05/spindle_05.html About a
clear a discription as you'll find any where.

Need some bearings? Try: http://cgi.ebay.com/ws/eBayISAPI.dll?
ViewItem&item=7550420248




--- In CAD_CAM_EDM_DRO@yahoogroups.com, Abby Katt
<cncgroupnospam@...> wrote:

>
> Hi All,
>
> I'm looking at making my own belt/pulley based spindle speed

multiplier

> for my CNC mill, and was wondering what bearings I should be

using? The

> milling cutter itself will be quite small (1/8" or 3mm), and high-

speed

> so it doesn't need to be too-beefy.. the reason I ask is that

angular

> contact bearings are quite a bit larger than regular sealed-race
> ballbearings - and more expensive, I'm not sure though if the

price

> warrants the extra expenditure - a ballbearing based spindle would

be

> more streamline and easier to make...
>
> I've seen some fantastic pages of people (on this list) who've

made

> their own fantastic spindles - so this is why I ask. :)
> I intend to "open source" the design when it's done, and post all

plans,

> drawings, 3D models, construction pics, and a how-to guide on my

website....

>
> Thanks for any advice,
> Regards,
> Abby
> (http://www.silverkatt.co.uk)
>