Re: What cnc setup to buy for my sherline mill?

At 21:11 11/10/2002 +0000, you wrote:

>Darrin, if youre willing to spend the kind of money
>that those systems you mentioned cost, then why not
>buy this one
>http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1774801450
> off of ebay.com for $599.00. it comes with
>everything you need to get you going, besides the
>motor mounts and those can be bought form sherline
>relitively cheap.NOTE, this auction closes in 4 hours.
>There is another setup thats a unilopar system on Ebay
>for 200.00 dollars, that also ends in 4 hours, but i
>wouldnt recommend a unipolar system anyway.the one i
>first mentioned is a chopper typre system. thats what
>i suggest.
>besides with the money you save on the system at Ebay,
>you can buy some nice ballscrews down the road if you
>want any real accuracy why dont you just buy some
>ballscrews to put on that puppy too.

Bear in mind that the Sherline mounts will be NEMA 23 size; the motors on
offer above are NEMA 34 (3.4" body diam vs 2.3" diam) and, judging by their
rating of only 160 oz-i, are pretty wimpy for motors of that format (top of
the range NEMA 23 motors will get you ~220 oz-in, or ~1000 oz-in for NEMA
34 motors).

For $600 you can do a lot better than this.


Regards,
Tony