Re: HTD belts vs GT2 on Bridgeport

Thanks Ron,

I was thinking about replacing it with a bench top variety knee
mill, but for the stuff I am doing with it, I changed my mind and
decided to stick with it. Virtually all of the work I do on mine is
all fun-n-games type stuff for around the shop and I have no desire
to making money with it.

I will check out the servos at that website.

Thanks!

Chris



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

>
> Chris,
>
> The JVM-836 is a bigger mill than a RF. It weighs like 1600

lbs. It's referred to as a "Baby Bridgeport", looks just like one
although scaled down a bit and obviously of lesser quality. Still a
very good little machine though.

>
> If you have an RF with a round column, I would definitely

consider trading up to the RF-45? like Indutrial hobbies sells. With
the dovetailed column. The round column is troublesome in that if
the head needs to be moved during an operation, X and Y reference
are lost. I sold mine on Ebay for $1k. Another problem with it is
with heavy cutting, the head can slip radially on the round column.
Not good. Having said all that, it made alot of parts as a manual
machine.

>
> Dan Mauch/Camtronics sells servos for that size machine. I was

going to get these thru him and then the customer didnt want it,
then he did, then he bought his own and it was one of those fun
deals.

>
> Ron
>
>
>
> lcdpublishing <lcdpublishing@...> wrote:
> > The JET 8X36 mill I retrofitted with NEMA34 servos (14 lb-in)

last

> summer used 15mm HTD belts and there is zero backlash. > Ron
>
>
> Hi Ron, That Jet 8 X 36, is that comparable in size / capacity to

the

> bench top Rong fu machines? I am hoping to retrofit mine later

this

> year. I have some really good servo drives for it and most of the
> electricals. I don't have servos or screws yet.
>
> Do you have a suggestion for servo motors for this size machine?
>
> Thanks!
>
> Chris
>
>
>
>
>
>
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