Re: [CAD_CAM_EDM_DRO] mini-mill converson data

turbulatordude wrote:

>Hi,
>
>I am looking for data on converting a mini-mill to steppers.
>
>can anyone offer some links ? or recomendations on stepper sizes ?
>
>I was thinking of starting with some NEM34's 150 in-oz because I have
>them and could always swap out for larger units.
>
>

This is on the borderline of being too small, but might work OK, depending
on what you will be making.

>Also, what is the best way to automate the Z axis ?
>
>

I think the only right way is with an anti-backlash ballscrew attached
to the column, and driving the head directly. All attempts to use the
rack and pinion drive seem bound to have much backlash and positioning
errors.

Jon