Subject: Re: CCMC Sherline Mill

From: [email-masked] (WRitt)
Date: 28 Apr 1996 17:04:40 -0400

In article <[email-masked]>, Dan Mauch
<[email-masked]> writes:

>Yesterday a guy from Portland Or drove all the way up to Seattle to 
>have me set up his Sherline milling Machine. He bought the stepper 
>motors and stepper motor mounts from [email-masked] and got the 
>three axis controller from me. The extrusions that Bill provided we 
>beautiful and the installation was quite simple and easy to accomplish.
>I added the stepper motor controller and we ran the unit. It ran 
>beautifully. This guy had mounted a homemade DRP using digital vernieer 
>calibers. It was a joy to setup with the DRO. The bottom line is that I 
>was very impressed with the Sherline Mill and with Bill Griffins stepper 
>motors and mounts. If you have a Sherline or planning to buy one and you 
>want to convert it to CNC drop Bill or me a line. We can help you get up 
>and running.

What kind of  speed did you get? How did Bill's motor mounts bolt on? Did 
this setup use thrust bearings? TIA.

Bill Rittner

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From: Dan Mauch <[email-masked]>
Date: Sun, 28 Apr 1996 06:49:53 -0700

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From: [email-masked] (Edward Haas)
Date: 29 Apr 1996 18:30:30 -0700

--I think maybe what irks people about the prices of these 
retrofits is that some "scaling" would seem to be in order. I mean, you can 
get a Fanuc control for just 2x or 3x the price of the $5k Sherline price 
that would drive about 5 hp worth of stepper motors, i.e. you could do some 
serious hogging at that point... What's needed is something with a little 
more *oomph* than those mickey-mouse little motors for the $5k that 
they're socking you... Good value for money, in other words... 
-- 
	"Steamboat Ed" Haas	:	Last Law of Product Design:
	COMING SOON		:	If you can't fix it, feature it.
	http://www.west.net~steamer  	
		---Decks a-wash in a sea of words---

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From: Dan Mauch <[email-masked]>
Date: Tue, 30 Apr 1996 16:44:59 -0700

WRitt wrote:
> Bill RittnerI did not measure the speed but it looked like it was at least 12" per 
minute. Faster than the Sherline can cut. The extrusion are square 
tubing that match up to mating flanges a really nice setup. I forwarded 
your post to bill to get a better explantion but yes it does have thrust 
bearings.
Dan

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From: [email-masked] (WRitt)
Date: 1 May 1996 00:45:21 -0400

In article <[email-masked]>, Dan Mauch
<[email-masked]> writes:

>I did not measure the speed but it looked like it was at least 12" per 

Thanks Dan.
Bill

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From: [email-masked] (WRitt)
Date: 1 May 1996 02:01:45 -0400

In article <[email-masked]>, [email-masked] (Edward Haas)

>they're socking you... Good value for money, in other words... 

Exactly Ed. Instead of paying 5k for a  retrofitted Sherline (miniature)
why not go  for 6k and buy a used Boss Bridgeport. A lot  more bang  for
your  buck. You can retrofit a kneemill for  5k. Why buy a  little
Sherline?  I'm not  knocking the Sherline machine. I own 1 and am buying
another. They are great little machines for what they were designed for.
But, 5k  for a machine with an envelope of 9" X 5" X 6.5" is  ludicrous, 
even if you are working on miniature parts, when it can be done very
nicely for  less than half of that. Just my opinion based on 30+ years of
machining.

Bill Rittner