Re: [CAD_CAM_EDM_DRO] Re: Counterweighting the Z axis ?; Power off position holding ?

Kim Lux wrote:

>Glad to hear I am not the only one.
>
>The problem with springs is that their force varies with where the head
>is. Maybe they could be adjusted for zero force in the home position.
>That wouldn't help for an EStop though.
>
>A regulated air cylinder could give a constant force with any position,
>but I'm worried the air dynamics would mess up the head motion.
>
>So far the best solution seems to be to counter weight it and/or apply a
>bit of drag to the ballscrew drive.
>
>

Hey, how about a counterweight with a spring between it and the cable or
chain? This would help eliminate the additional inertia of the weight!

Jon