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Assemblies - sub-Assemblies

Old Geeser

Old Geeser

Senior Member
I am trying to learn Alibre assemblies so I can animate an engine I designed years ago. I created a sub-assembly of the of the piston and rod (with lots of help from David on this forum) and it works great in the sub-assembly, but when I insert the sub-assembly into the final-assembly I no longer have the motion between the rod and the piston. Does all motion have to be in the final-assembly?
Thanks
Karl
 
Old Geeser

Old Geeser

Senior Member
In doing a little research I get the idea that is possible to get one component to continuously rotate. But I'm getting conflicting ideas of whether not I have this feature in Design or do I need to have Expert to get it. It looks like it has some way to set a calculation for the number of rotations to make. Can you direct me one mor step.
Thanks
 
J

JimCad

Senior Member
Also look at the "Walschaerts (Resolved)" thread.
By: shmbry

Walschaerts (Resolved)

Has anyone had any success in modelling Walschaerts valve gear ? I keep reaching a point where constraints become over defined no matter how much I change the order of assembly or way parts are structured into sub assemblies. There are no design relationships, patterns or arrays in any sub...
www.alibre.com

That's the sort of thing you're after. Not an easy option but doable.
Probably already asked but @Max; Would animation be a possible in future versions?
Such a useful tool.

Jim
 
M

MilesH

Alibre Super User
Old Geeser said:
In doing a little research I get the idea that is possible to get one component to continuously rotate. But I'm getting conflicting ideas of whether not I have this feature in Design or do I need to have Expert to get it. It looks like it has some way to set a calculation for the number of rotations to make. Can you direct me one mor step.
Thanks
Click to expand...
IDSLK's script is a better way to do things now but even18 years ago we could do animations: https://www.alibre.com/forum/index.php?threads/inherent-kinematic-ability.1431/#post-7076
 
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