Hi All,

small stirling engine designed off the plans from James Senft's 'An introduction to Low Temperature Differential Stirling Engines'. A bit of a dog's breakfast unfortunatly - I made the model before I was aware of SketchyPhysics!! Feel free to have a go at animating, playing with, redesigning - whatever.

Cheers,
Pete

handheld stirling.skp

Hi Mr K.,

I took your advice (I think) and rebuilt the screw. The casing and thread are now both made out of the solid floor feature, and all of the animation settings are the same as in the example model you suggested to look at. I still have the problem that the ball passes through either the casing or the thread depending on how i play with the animation settings. Any further advice would be greatly appreciated!!

Thanks,
Pete

Screw.skp

Thanks very much, I'll check it out

Hi,

I'm new to using sketchy physics, but am excited about the possibilities. That being said, I am having a few difficulties animating my Archimedies screw. I can get the screw to rotate, but when I add a sphere to try and make it roll up, the thread just passes through the ball (or the ball through the thread...). I cannot work out the correct combination of settings to animate the ball.

Any help is greatly appreciated,

Thanks,
Pete

(attached is the model so far)

Screw.skp