Re: [CAD_CAM_EDM_DRO] 3 axis 9x49 retrofit recomendations.

Hi dan;

Your first issue is the "crappy leadscrews", if your really want to go
CNC these should be changed to ball screws. That would be my first
investment.

I have mixed feelings about linear scales on a CNC system, you should be
able to get better resolution with rotary encoders on your leadscrews or
motors. On top of that there are a whole host of issues related to
aligning and maintaining linear scales.

It is a given that the ball screws are not economical, but if your at
all serious about CNC I would think that they would be a requirement.
The motors and drives are much more difficult to make suggestions on as
there are numerous possibilities.

Dave


Dan Sergison wrote:

>Sorry to ask such a general question, but there is SO much
>information, I'm having trouble processing it all.
>
>I have a plain old 9x49 enco mill. I'd like to retrofit it to 3 axis
>cnc. (maybe 4 w/rotary table)
>I'm perfectly capable of fabricating all the brackets and hardware
>but I'm over my head on the controll system. I believe I'd like to
>have linear positioning feedback from some dro, not rely just on my
>crappy leadscrews. also would need to be able to use the mill
>manually most of the time, and have a dro function.
>
>I'm a solid modeler by trade and fairly handy with computers, I have
>a few pc's and a hpux workstation, or could set up linux.
>
>what would you recomend for a somewhat economical approach?
>
>thank you very much,
>Dan
>
>
>
>
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