Re: [CAD_CAM_EDM_DRO] Z-axis stepper size?

Hi Peter,

YES! See Randy's posts of about a year ago! OK, might be on Sherline
list. Basically, Randy made a counterbalance for the Z axis of his
Sherline mill.

Randy Gordon-Gilmore wrote:

>
> I've uploaded a few pictures and drawings to the files folder
>
> http://www.egroups.com/files/sherline/Counterbalance+springs%2C+take+2/
>
> showing the completed second version counterbalance.
>
> Again, I used "on-hand" bearings for this one, in this case .500 OD x .187
> ID radial ball bearings.
>
> The parts I didn't draw are the spring retainer pins -- .187 DIA x .250 L
> pin with .625 DIA x .040 L flange, and the bearing axle -- .187 DIA x 2.50
> L, with the last 1/8" threaded 6-32.

I don't think this link is good anymore, perhaps Randy can expand on
this.

Alan KM6VV


Peter Seddon wrote:

>
> Is counterbalancing an option for the z-axis ? This is what thefullsized
> machines do and considerably reduce the axis power requirements.
>
> Regards Peter