2010/12/13 Ulf Dambacher <[email protected]>:
> The catches may also move interpolated to not loose the sheet.
> Then the hydraulics moves up, the catches are repositioned and the
> worker will change part or reposition for the next move.

I was in an exhibition few weeks ago and I was watching bending press
in action and the thing I do not understand, is why do You want to
have 2 catches?
If I understand correctly, catch is the part, against which the
operator positions the edge of the part, so that the bend is done in exact
distance from the catch - material edge, which is held against
the catch.

So why do You need 2 of them? To bend two different parts together?

> And yes, both catches can collide. (which has to be rejected by the machine)

The only way I see is some limit switches on the edges of catch on
those sides, where they can collide.
And that would be just an "avoid the consequences of mistake" measure,
since it would stop catches, but would not fix the wrong commands in
the g-code.
Recently there was a discussion on similar topic - the only way to
limit certain axis/joints is min_limit and max_limit in INI file.
Unfortunately it is not possible to create some "map", where the
limits for X would change in accordance to Y position, e.g., if Y is
in 0, then X limits are 0 and 20, but if Y is in 30, then X limits are
0 and 50.

> anyway, Thanks for all your answers, I will have to look if I can use
> abc for linear motions and do a G1 z1,c1,w2  together at defined speed.
> I think the best way would be to do a simulation first.

Could, You, please report of Your success? I am thinking about
something similar - using A, B and C for linear axis - so I would like
to know, how EMC handles that.

Viesturs

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