Even with these helps I'm still having a very hard time identifying the newest SketchyPhysics download. Is it SetupSketchyPhysics3x-Apr2.exe @ this page?
Dying for SketchyPhysics IV. Seeing small SketchyPhysics solids fall through the floor in the version I have installed now 
Argh. How cute.
So now I'm thinking of using some debugging tools, finding the responsible byte(s) and) patching SketchUp.
That would be an inflexible solution.
Circle, Arc, and Polygon segment number defaults would best be a user-configurable setting (and not just per session - I mean a permanent setting or option), and/or API-accessible.
Next question: has that (option) been put on the API wish list I saw over yon? I know, I could read the whole wish list.. 
At least this script here just saved me time reducing polys from extruded circles.. thanks!
I've posted a question here - but I think I'll post it more broadly here as a newbie question:
Scripting the creation of an 8-sided circle doesn't seem to be a way to change the default number of segments in a circle: it still remains the default 24 for any user-created circles.
How could I automatically change the default number of segments in a circle and/or arc? By "automatically", I mean that this happens when SketchUp loads: a script (I'd think) changes the default circle segments to 8 (or any other number I'd like to script).
Or has somebody already scripted a solution to this, and if so, what is the solution?
Thanks!
I've tried making a script that automatically creates an 8-sided circle in a group at sketchup start, to see if all circles created by a user would then be 8-sided as well. They aren't - scripting an 8-sided circle still leaves the default sides at 24.
I tried changing the sides of a circle with this script as well - Sketchup still leaves the default at 24.
How can I change the default sides of a circle? 
@sgal said:
can move linearily along his axe.. The object axe points to the joint.. the Universal joint won't allow the object to rotate around his axe.
I believe you mean "axle", not "axe"? 
@kwalkerman said:
Right now it looks only at the front side. I could do another run that looked at the back side, if that would help?
(Extremely late in reply - sorry)
Yeah, that would help - and then two options or modes depending on the result. 1) If the material on the back side is the same as the front, group it with everything else that has that material. or, 2) If the material on the back side is different, group it separately (in a group with all faces that have this back/front combination). That would be great.
@thomthom said:
That's not something I can control. It's how SketchUp works. All tools that use the VCB acts like that.
Ok. Thanks.
Responding to the previous - CloseOpens is, uh, I dunno either.. do you mean Close Edge Gaps? The video gives at least good guidance on figuring it out.
I posted, then thought I found the answer, then deleted, then thought I don't have the answer.. 
Which version is newer: V6 at the first post here, or V2 found at the plugins index of the site linked from the last post here? -
http://rhin.crai.archi.fr/rld/plugin_details.php?id=671