Re: [CAD_CAM_EDM_DRO] Rong Fu 31 CNC Conversion Kit / Instructions / Help? :D

I made a plate of 1/8 steel to mount between the bed and acme
screw support bearing. The stepping motor mounts to this plate.
I welded a flange around part of the perimeter of the plate to stiffen
it up. I used a toothed belt between the stepping motor and the
handwheel. I bored the gear to slip over the hand wheel and
dimpled the handwheel for the gear setscrews.
This did not keep the machine from being used while I get it
finished. I used Ah-ha control which I have had for many years.

bob mcknight




To: CAD_CAM_EDM_DRO@yahoogroups.com
From: Art Eckstein <a_eckstein@...>
Date sent: Fri, 20 Jan 2006 21:06:44 -0500
Subject: Re: [CAD_CAM_EDM_DRO] Rong Fu 31 CNC
Conversion Kit /
Instructions / Help? :D
Send reply to: CAD_CAM_EDM_DRO@yahoogroups.com

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Dan,
To put it mildly, I did my own thing!
I measured, and made my own ball nut holders and then actually
measured the length of the axis I wanted and cadded all the parts up
and started making scrap metal.

I would be more than happy to share my "working drawing" with you
and
share some of the things that I would do differently if I were to do
it over again (mainly in my X axis mount). For the Z axis, I drove
the micro feed instead of some of the more exotic systems that are
out there, but all in all I am happy with the system I have. In case
you are interested, this is a servo based system but just as easily
could be done with steppers.

Bubba

At 12:11 AM 1/20/2006, you wrote:

>Hello all,
>
> I have a Rong Fu 31. I have been wanting to cnc it
>for awhile now. I have found a few kits for this model
>but they all seem to be around the 3,000+ mark. Does
>anyone know of a kit that costs less than this or
>maybe someone has done a DIY cnc kit for this mill and
>documented where they bought the parts and what they
>had to do to make it work. Any information about
>cnc'ing thing mill would be welcome.
>
>Thanks
>Dan.
>
>__

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