Re: [CAD_CAM_EDM_DRO] New to list hello all; smithy conversion combo mill lathe edm

Chris hi

I to have a 1720 and have just about finished with the conversion.I have
put the ball screw on the back of the lathe just incase I need to thread.
I put the cross slide screw in the same location I have made a few changes
so this would fit I mounted the ball nut on the table not I repeat not
the crosslide base I found I was able to get a little more travel check it
out your self first if you think you can do it go ahead and try.You will
have to change the two gears to get the same table speeds with the ball
screw installed.Now for the quill I have not done that as of yet but I
have two different ways that I may try ..I hope I can help a bit I also
will be using stepper s for now since I have them here ..I have three
472oz stepper s two are 6 wire and one is a 8 wire the 8 wire has it own
driver with power supply


John Brauweiler



--- cclanton3000 <cclanton3@...> wrote:

> Hello to all on the list I have been putting off converting a smithy
> midas 1720cnc to computer control for about two years. Well it is
> time, called smithy thay don't sell the machine or the cnc kit
> anymore so I am on my own. I would like to see if I could get some
> feedback on my thoughts on the conversion.
>
> servos for x,y,z + 2 extra for rotary table and wire feeder for edm
>
> gecko controllers
>
> hp power supply for motors
>
> ballscrews I would like to find some that are 6 tpi so I could do
> manual threading or is it really necesary ? And do I need to spend
> serious green or can I get by with something a little less than nasa
> quality? And what about the ways should I be using linear bearings
> instead?
> Thanks for any input you can give :)
> Chris Clanton
> Pensacola Florida
>
>
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