Help with motion links between slider and revolute joints

[ggray10]

I have an assembly with three revolute joints driven by a slider joint with motion links.  The joints all work as expected until I ground the two revolute joints on the end.  I can ground one end and the drive joint still works, but revolute joint on the opposite ends changes position.  If I fix the position of the end joint, none of the joints animate.  I suspect some of the motion links need to be non linear, but I don't know if that is possible.

This is my first post so please let me know if I am in the correct forum and have properly uploaded the design file.

[j_d_olsen7]

You'll want to export your file as .f3d and attach it here so people can see what your working with.

[davebYYPCU]

Export the file, then attach it with the word Browse under the message box.

New to Fusion?   Your pic is blank.

Delete the Motion links, let Fusion work it out.
Ground a Joint is not possible.  Can be suppressed or Locked.  
A compression strut, jointed to a grounded frame and moving lid, would not need motion links.  

Drive any Joint Fusion will provide the correct animation.  

Might help….

[ggray10]

Browse:  Added Assembly file

[ggray10]

I added the file as a new reply, thanks for guiding me to the correct file to upload.

[ggray10]

Yes, I am new to Fusion - I added what I think is the proper file as a new reply.  I couldn't figure out how to add it to the original post.  If I delete the motion link, the slider joint has no effect on the three revolute joint.  I think I understand what you are saying about grounding in that the joint itself is not grounded so I have the origin pin on the outside revolute joint grounded and that seems to work.  Thank you for your reply, 

[jhackney1972 · Accepted solution]

Your model does not need an Motion Links.  The main thing is to get the Cylinder assembly working correctly and then apply it to the top level assembly. 

Model is attached.  I will caution you as I am returning your assembly as a F3Z file.  I would suggest you Upload it to a separate folder to keep this model and yours separate.  If you upload it to the same folder, it will duplicate your components and you will have a mess.

[ggray10]

Thank you so much, I struggled for hours with motion links I didn't need.  I just never thought of keeping the motion joint at the component level.