Solidworks - rope mechanism for a finger

SOLIDWORKS How To Questions
1

Hi everyone! I got stuck somewhere in our prosthetic robotic hand project for disabled people which I am doing by using Solidworks software. The finger moves as I want, but I have to add a “simple rope mechanism” as an animation. I have also drawn the necessary channels for the finger to pass the rope, but I am having a problem in drawing the rope, passing it through the channels, and casting it into animation. Unfortunately, there is no such video about animation on Youtube and other platforms. Any help is appreciated!
part_3.SLDPRT (206 KB)
Index_assemb.SLDASM (323 KB)

2

[quote=seizerr post_id=18323 time=1646768678 user_id=1452]
Hi everyone! I got stuck somewhere in our prosthetic robotic hand project for disabled people which I am doing by using Solidworks software. The finger moves as I want, but I have to add a “simple rope mechanism” as an animation. I have also drawn the necessary channels for the finger to pass the rope, but I am having a problem in drawing the rope, passing it through the channels, and casting it into animation. Unfortunately, there is no such video about animation on Youtube and other platforms. Any help is appreciated!
[/quote]
Cool project!

There is this pulley example that might be helpful:

<LINK_TEXT text=“https://www.youtube.com/watch?v=0Cd7z5S … dknowledge”>https://www.youtube.com/watch?v=0Cd7z5SVFls&amp;ab_channel=Cadknowledge</LINK_TEXT>



You could also export the STL files and use Blender to make the animation, will be much better than SW, but you will have some learning curve to go through.



Btw, you could use the Gear Mate to make them move together:
[attachment=0]image.png[/attachment]

3

Here you go, paste them in a different folder because I didn’t rename your files.
Also this one is with Splines, first I tried with Arc. I think splines looks more realistic… you might get better results after some adjustments.
image.png
image.png

  • I had to make the sweeps inside each part because was the only way to snap the cable relations trough it.
  • Depending on the position you will blow up the sketch and have to manually fix it.
  • You need to adjust the pipe length in part 2 for a better movement.
    UU
    part_3.SLDPRT (215 KB)
    part_2.SLDPRT (224 KB)
    part_1.SLDPRT (437 KB)
    cable.SLDPRT (187 KB)
4

Thank you so much!

5

Glad to help UU