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

I was talking about an Jet 8X36.... Ever seen one?

Ron


ballendo <ballendo@...> wrote:
Ron,

There is no "yoke" on an RF-31. You must be speaking about the
larger BP clone mills made by RF and others...

Re the RF-31/g1006, hf2119, etc.: Cardinal engineering has
retrofitted many hundreds of these for individuals and companies
such as Flashcut. So have others.
While there are variations, it IS possible to provide a kit that
works reliably.

Ballendo

--- In CAD_CAM_EDM_DRO@yahoogroups.com, R Rogers
wrote:

>
> I considered offering a kit for these types of mills, I had a Rong-

fu and I retrofitted a Jet 8X36. Starting out, I wondered why no
kits were available. I soon found out and nixed my plans to produce
retrofit kits.

>
> There is very little that is consistent on these regarding dims.

As in the JET for example. The Yoke in the saddle, all the holes
were drilled by hand. Hand tapped, and then they drilled two 5mm
holes on angles and not in reference to anything, and drove roll-
pins in them to keep the yoke from moving around. How would one
produce a replacement yoke for this that accepts ballscrews? I spent
$90 on a yoke from Hiwin thats in a box under the bench. It wouldnt
fit anyway I tried it. I machined a bit of it and can't return it. I
wound up taking the stock yoke and boring it and removing material
to make clearance for the recirculation tubes. I thought about the
amount of support involved with selling a kit for something like
this...no way..

>
> However, they are retrofittable. But if you are looking for

something turn-key, I'd advise finding an old Bridgeport. At least
the holes and dims are all consistent.

>
> I'm not familiar at all with the kit from CNCmasters. They may

have found a way around inconsistencies, just sharing my experiences
with chinese machines.

>
>
> Ron
>
> joe camel wrote:
> Hello everyone,
>
> I'm back at it again. I've been trying to find a
> documented list that shows all the parts needed and
> the places to purchase the parts from and a totalled
> price for everything. I am unable to find this. I find
> books on ebay how to cnc this and that, but nothing
> about the Rong Fu 31 mill/drill. I need a parts list
> with specific parts and where to get them from. I'm
> sure that I can build the decoder box myself given a
> schematic. but I would rather buy one.
>
> Seems like the more and more time I put into this the
> more and more the cncmaster retro kit for the Rong Fu
> seems like a better deal.
>
> Can someone help me out finding a completed list of
> eveything needed to complete my converion of my rong
> fu 31? Or is the cncmaster the best and only way to
> go? I don't mind ordering a bit here and there, but I
> want a completed list of everything needed and where
> to get it from.
>
>
> thx
> Dan.

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