universal coupling

chand_basha

hi, 
    I designed a universal coupling every came good enough but the output shaft is revolving instead of rotating about its own axis. 
someone help me out 
  here is the link 
       https://cad.onshape.com/documents/e5b7eab217a3012659cad55a/w/36556c2741fa813cfaeb654a/e/1dd8e90d759b2f35cdc60790

philip_thomas

@chand_basha - You will need to make that Document 'public' for others (myself included) to see it!

philip_thomas

@chand_basha - You will need to make that Document 'public' for others (myself included) to see it!

shrekant

I have another problem related to the universal coupling!
When all the constraints are applied, the mechanism isn't working as intended. Even though I have double checked it from all points of view. Kindly help me rectify it. 

I need to share the file to students so that they can interactively watch the mechanism work on their mobiles. 

Here is the link (I have made it public already)...
https://cad.onshape.com/documents/9f4b177ec255ce0352d5d12b/w/1cca9239a71dae6c0d26f4c2/e/b43a2ec92d2e2ebe524577e3

Regards.

owen_sparks

Hi, you've shared that as a view only link.  please will you just copy the url from the top of your browser?  Ta, Owen.

MBartlett21

@shrekant
You will need to mate the green bit so it won't slide.
You could probably use a mate connector between entities on the red parts

chand_basha

Hi @shrekant,
                          There is nothing wrong in your design, but the thing is you have to use two universal couplings for making input and output shafts to rotate in their true axis.  And you can observe the same thing in Automobiles also. 
                      Hope This will Help !.

Cheers,
chand.

gerhard_swanepoel

Hi,

Was intrigued and put something together. Maybe this will help:

https://cad.onshape.com/documents/c363338064ee15c193b392f5/w/1d3835a1cf1d86fc6377efcc/e/93d86caa41186a405178b5ca

chand_basha

Hi @gerhard_swanepoel

I saw your design it is nice. But I have a doubt, There is no fixed reference part through which the shafts are rotating. 

I have tried fixing this problem, I don't know how far I succeeded.  Please check this design and let me know your opinion.

https://cad.onshape.com/documents/e5b7eab217a3012659cad55a/w/36556c2741fa813cfaeb654a/e/1dd8e90d759b2f35cdc60790

*Revolute 5, 6 belongs to shafts.

Thanks