Re: Prazi BF450 mill

Thanks Ron,

I found some RongFu's, I'll check out Penn Tool.

Alan KM6VV

ron ginger wrote:

>
> The Prazi table is 17" long and 6" wide. The work area is 11.4" x 5.5"
> The Sherline 5000 mill has 9" x 3" travel, so the Prazi is considerably
> bigger. It also weighs over 150 pounds - I had to take the head off to
> carry it.
>
> The Prazi X and Y should be very simple to CNC convert- they have a very
> plain block with a hole bored to hold thrust bearings. It should be
> easy to make a plate with the right size holes and just bolt it on.
>
> Z is another matter. The head is raised by a lead screw, which has a
> simple plate mount and would be easy to add a motor BUT, the head is
> HEAVY and it would take a heck of a motor to raise it. It is also
> REQUIRED that you tighten the head clamp bolts for any milling
> operation, so I dont think this is the way to do Z axis- its just like
> doing the knee elevation on a Bport.
>
> The Prazi has a quill feed of 50mm or 1.9". It has a rack gear on its
> side, and a simple pinion drives it from a handwheel, ala a drill press.
> I think a plate made to clamp around the quill base could have a lead
> screw added, as is often done on Bports.
>
> I believe the RongFu 45 is sold by Penn Tool. I have seen other catalogs
> that list some RongFu, but not the 45.
>
> ron ginger
>
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