mechanism simulation & prototype 2

mechanism simulation & prototype 2
Published on Dec 27, 2020 by Jiaolyulu

Prototype 2 in Solidworks

It is still the same lever idea but this time I want to make a nice track so that when it rotate, the shaft could stay at its own track.

the concept

the concept

Lasercutting drawing

I ordered lasercutting servis using Taobao and the thickness is 3mm. This is the drawing.

the concept

connectors

I also use these connectors to try to make the rod have freedom while its connection to the track can always be perpendicular to the track surface.

the concept

I also use bearing inside the track so as to reduce all the possible frictions.
the concept

I also use this at the end of the connector to reduce friction.
the concept

Why fails?

I am sorry because I did not take a picture of this prototype although I assemble it. Because it fails, so I did not take any picture.

No matter how I tries, it would never be smooth. I realize this kind of movement can only be achieved when the track is horizontal so the distribution of the gravity would be even. Therefore, there would not be additional friction add to the side wall of the track. However, because I am using this lever to get a movement I want, I do not want the movement to be moving in XY plane. So I realize I need to totaolly change the mechanism.

Conclusion

I learn a lesson that the simulation from Solidworks would not work at all when it comes to physical things.
I need to totaolly change the mechanism.