Help with sketchy physics

[humpmetwice]

Hi I am new to this forum and Sketchup.I have been using Sketchup for about 3 months now and I love it! I came across this plug-in (sketchy physics) and it makes me love it even more!! My problem I need help with is I'm trying to make a nut tighten up on a bolt. I was able to get the nut to turn using the motor but wasn't able to get it to move up the bolt. Any help would be greatly appreciated!

[Gaieus]

SketchyPhysics is quite a special plugin and not used by everyone so we made a special subforum for it under "Extensions and Applications..." forum.
I am moving your topic there and hope all the SP enthusiasts will be able to help.

[fanka]

I'm quite new with SkechyPhysics, so I could be wrong, but in your model there are at least to problems:
1- nut is not centered referring to the screwing axis (it can be clearly seen when you click on play)
2- bold has not a real thread ( ///// ) but a sequence of pararllel discs ( |||||| )

Try to fix these two bugs and maybe you will solve it at all

[chaosss]

I agreed with fanka but there is biggger problem.
SP recognize your bolt and nut as a "ball" shape, not the way they looks.
collison area is the problem. search with the word on this board.
In fact, it is very hard to make a body with complexs and concave shape in SP.
For example, if you model a car in sketchup, not with sketch physics tools(box,cone..etc),SP recognize it as simple 'box' shape.

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