Trying to simulate screw motion and getting weird results

[tjtalma]

I'm modeling a woodworking bench. I have successfully design most of it. I am adding a different style vise and am trying to simulate the motion of the vise. I was able to do this successfully in a different area, but I am unable to repeat it. The screw just spins in place.  I am also trying to simulate moving a block that is linked to the screw. But it just spins with the screw. Also when at rest it sits at a weird angle.

Can someone show me what I am  doing wrong. In the picture below I am trying to get the screw to move and slide the block along with it as it moves. 

Model is attached. The screw and block are in the "Wagon vise" component

[davebYYPCU]

Can’t get to the file straight away, 

Screw is ok, if it is a Revolve.

Block needs Slider joint on its rail

Motion link the pitch of the Thread.  

One turn moves the block x distance.

Might help....

[jhackney1972]

The Block needs a Slider Joint to move correctly, not a Revolve Joint.  You then add a Motion Link between the Revolve Joint of the Screw and the Slider Joint of the Block.  Video will explain show better.  Model is attached.

[tjtalma]

I didn't describe the action clearly in my first post. The screw should move out from the "Vise endcap" component with the block "pulled" along by it. The end cap is threaded (the nut) and the block is fixed with a garter.

[jhackney1972]

I do not have time at this moment to do a video, but will later if you cannot figure out what I did.  This type of Motion Link requires an additional component because you cannot apply two joints, to the same component, that conflict.  You use a intermediate component to add the joints preventing interference.  Let me know if you cannot figure it out and I will do the video later.  Model is attached.  I hope I am now understanding your requirements.

[jhackney1972 · Accepted solution]

I found a few minutes to create a video explaining the process I used in my last model.  You have my model so I will not attach it again.  If it solves your question, please be sure to select the "Accept Solution" icon to help other solve similar issues. 

[tjtalma]

Thanks this is exactly what I was looking to do, and I very much appreciate your help!