contrary constraints

[DAVID-INVENTOR]

Good evening,
I would like by constraint or joint, to make the stems of 2 cylinders move like this: when one climbs the other goes down.
cylinders are not parallel to each other, through any plane.
I thought: to a cylinder I give a hole constraint with the limits or a cylindrical joint, and to the other I do the same, but instead of using numerical limits, I give how variable the movement quotas of the other.. On the contrary.
I'm not wrong, but nothing happens, how come? Thank you.

 

[Zac69]

the bond of cylinder 1 will be called d25 (you can rename it as a race if you want). search for cylinder 2 bond and rename it from dxx to cylinder 1. the movement will be commanded by cylinder 1

 

[DAVID-INVENTOR]

Thank you, but that's what I wrote.. :
these cones the bases of the inventor.

I would need to understand why the formulas, so put, do not activate.
Thank you.

 

[Cast16]

If you train a simple set with your formulas, maybe someone can help you.

 

[Sergio.D.Suarez]

hi, I was in 3d modeling for 15 years, Italian is not my native language (Excuse me for my mistakes)
for what you propose, I think you need the stroke of the cylinders, that is the maximum shift of the cylinder, for example l = 180 mm.
one of the cylinders would have commanded the other. we then position a "d1" restriction between the cylinder surface and the cylinder cover that ranges from 0 to 180 mm (l).
in the other cylinder would place the same restriction, only that the formula would be "d2" = l-d1, which would be the same as placing d2 = 180-d1.
something to keep in mind is that this move of both described cylinders is linear. for a more complex scheme, we should design the rest of the parts and limit them correctly.
I hope to be clear and that this can help you, say hello!

 

[DAVID-INVENTOR]

allego.. bn evening and thanks cmq for help.
example apart, in reality cylinders do not have common faces among themselves.

What I need is that the movement happens when I move the first cylinder. Thank you.

 

[Sergio.D.Suarez]

Hello, excuse me for the delay in the answer.
I come from the old school, that's why I use constraints instead of joins.
I'll show you a video about how I'd do something like that in your video.
the cylinder stroke in the example is 10 mm

I hope it can be useful, and maybe give you an idea to solve your problem.
Bye-bye!

 

[DAVID-INVENTOR]

Thank you for filming.
with cinematicism I see the movement of cylinders... My problem is that I needed something like that during the 3d assigned, through the "flexible" command.

I was convinced that, giving a formula, the computer would move "by itself" the stem of the second cylinder, to the change of the first.

I then asked who gives us autodesk products and told me that you can't do it.. "Resolved" problem.

thanks to everyone, next