Jhula principle - increase speed by applying brakes.

[xnonix]

I saw just, the model harti_swinger01.w2d  has the same problems with this joint.
So how do we put now 2 weights together without stumbling onto this bug ?

Easy. We only need 2 pin joint this way.

[hartiberlin]

But why do 2 rigid joints not work  ?

Are the rigid joints buggy in this program ?

How do we make now one way only rotating joints
without bugs ?

[xnonix]

The program is buggy so I only trust what is known as working properly. I won't use rigid joints anymore in my models. The 2 pin joints solution is good enought.
The problem with wm2d are not the polys as we thought, is only those buggy rigid joints.

Cheers,
xnonix

EDIT: For doing one way rotating joints rigid joints function as expected.

[Dingus Mungus]

Or you can use a rotational damper to only enable
one way pin rotation like the solid joint would.

~Dingus

[dailytool]

First post here and i'm thoroughly enjoying all your efforts!

Originally, I was thinking of this pendulum design (jpg attached) to be added to the Milkovic design so you could utilize very little energy to swing the pendulum. It would be a swinging pendulum device per say with very low energy consumption...

But NOW i'm thinking you could possibly extract energy from the swing itself. The overall idea would be to 'brake' the pendulum arm at the top of the rotation point, just long enough to drop the secondary legs down (shown in red - using legs like your legs on a swingset). If you use magnets (shown in yellow) that are strong enough to hold the legs in place, but not strong enough to hold the legs when you stop (brake) the pendulum at the top of the swing, i think the legs would slap to the other side (by way of gravity and inertia) and hold well enough to run another rotation. Maybe it could be done with an alternating electromagnet on each side instead of a permanent magnet.

Food for thought!?!?!