How to design an accordion claw design?

[Andrewluckey]

Hello,

I am having diffculty cadding the design I want which is shown later here. Please help?

[jhackney1972]

No pictures or drawings?  Please re-post.

[TheCADWhisperer]

@Andrewluckey 

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

[Warmingup1953]

Like this on grabcad?

[Andrewluckey]

Yes, something similar to the design printed above.

I'm attaching my current work for reference (has a lot of bugs because of the timeline), here's the link to it: https://a360.co/3WhCoIS

[jhackney1972]

Pretty nice design!  All you needed to do was add a whole bunch of Revolve Joints and then add a component to control the motion.  I used a fixed bar with a Pin-Slot Joint but you may want to do something different.  Model is attached.

[Andrewluckey]

Thank you! The only thing is that I'm trying to make it so that the front of the claw stays straight while everything else moves... I was hoping I could use a mix of rigid and revolve joints but not much is happening...

here's where I am now for reference: https://a360.co/3WhCoIS

[jhackney1972]

You need to attach your model as the link you gave is not working at this time.  If you do not know how to attach your Fusion 360 model follow these easy steps. Open the model in Fusion 360, select the File menu, then Export and save as a F3D or F3Z file to your hard drive. Then use the Attachments section, of a forum post, to attach it.

By the way, do not use the "Quick Reply" icon to respond to a Forum post, it addresses your post to YOURSELF.  Use the "Reply" icon on the post you are responding to so it is addressed to the person you are writing to.

[Andrewluckey]

Like this？

[jhackney1972]

Yes, but you did not read the rest of my message, you are still addressing your Forum post to yourself.  Use the "Reply" icon not the "Quick Reply" icon.

[Andrewluckey]

Ah sorry.

[jhackney1972]

Your main problem is your Jaw, which may seem like multiple components, is only one!  How do you think it could possible move as you desire.  You copied it from somewhere, outside this assembly, so it has to be rebuilt.

[jhackney1972 · Accepted solution]

I did a very quick and dirty job of the modeling, of what I see, as needed to keep the jaws parallel.  Please note there are overlaps, and spaces in the jaw joints and I left a lot of pins out.  All I was trying to do was to present my concept design for you desired motion.  If this suits, I will leave it up to you to work out the final modeling.  By the way, your base slot and slider joint is not long enough to allow it to close completely.   Model is attached.

If this solves your issue, do not forget to Accept Solution.