Re: It lives!

Sure.
Leadscrews are 3/8"-12 (should have went faster). They are attached
using ecomonmy ball thrust bearings, combined with bronze flanged
bearings to support the rod. (would machine a holder for ball and
thrust bearings if I had to do it over)

Nuts are brass ones bought from McMaster, fixed to machined aluminum
flanges (my first lathe project!)

Z slides are scavenged from old printers, as is the Z motor.

X and Y slides are 1-1/2" and 1" respectively, bought on ebay.
Thompson shafting and roller bearings.

Driver, and X motor come from Dan of Camtronics fame. This is his 2A
version, runs the 210oz motor from the same source very well.

Y motor is a high torque one from American Scientific.

Speeds with the scavenged AT power supply (~9v) are: X - 12ipm, Y -
8ipm, Z - 10ipm.


--- In CAD_CAM_EDM_DRO@egroups.com, "Chris Hellyar" <chris@o...>
wrote:

> Very nifty looking..
>
> Can you pass on some technical details? Screw types/sizes, nut

types,

> thrust bearings, drivers, software etc.. I'm sure a few people

would find

> it interesting.
>
> Cheers, Chris.
>
> * Design engineer, Assembly worker, Cleaner.
> * Ohmark Electronics. PO Box 5302, Christchurch, New Zealand.
> * http://www.ohmark.co.nz
> ----- Original Message -----
> From: Richard Spelling <richard@s...>
> To: <CAD_CAM_EDM_DRO@egroups.com>
> Cc: Gregg Carlson <ghartc@p...>; Chuck Leinweber
> <chuck@d...>
> Sent: Wednesday, December 27, 2000 7:45 PM
> Subject: [CAD_CAM_EDM_DRO] It lives!
>
>
> > Cut my first hole under cnc control. Pretty pathetic as holes go,

but,

> still, as a function test for the homebuilt cnc router...!
> >
> > http://www.spellingbusiness.com/robot.jpg
> >
> >
> > Still need to add the second leadscrew for X, put in limit

switches, add

> dust collection, mill a case for the electronics, calibrate

backlash, and

> other tweeks...
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> > Welcome to CAD_CAM_EDM_DRO@e...,an unmoderated list for the
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