Automated "lifter"

In CCED, "Graham Stabler" <grezmos@...> wrote:

>a labjack for anything, PnP or laser cutter.

Graham,

How about using an air bladder between two HOME CNC cut plates,
where the two plates are constrained vertically by screws and nuts.
IOW, use four cold forming posts on one plate, which mate with 4
HOME CNC CUT holes on the other plate. Now 4 large-headed screws go
through the plate with holes into the posts, with spacers to keep
everything copacetic. The screw allow fine adjustment of the
planarity between the two, as well as height/lift.

The air bladder applies a quick, repeatable, inexpensive force agent.

Another possible force agaent might be a wire bellcrank to do the
lifting (still between the plates), whose active end is attached to
some nitinol "muscle" wire...

The air gets the nod for applying equal pressure over the whole area
to be spread/lifted, but the nitinol wires and cranks allow for more
control.

FWIW,YMMV,

Ballendo

P.S. In a simpler version, each plate is CNC CUT with two diagonally
arranged strips. Which when mated with a second identical plate at
180 to each other, will allow you to bend the strips over each other
to apply the constraint and guidance. Air bladder between
completes...