Algodoo

Good job! There are a few misspelled words, but that can easily be cleaned up. The readout is now in units that are expected (RPM).

In the scene, your text reads, "Each time you create new bend with target it shows diffrient so you have to find it for your self." That is because when you create a new circle, it will almost never be created with its angle at zero degrees. And so what I do when I need to use the Bend function of an axle, after creating the circle, I go into the script menu and I set the angle to zero. Then when I attach the axle to it, the bend target zero point will always be in the same spot every time, and you will not need to add an offset to the target like you do now! Try it!

the number 190 always is for a displacement of 30 degrees or it depends of the rotation speed?
If not, how do you do to find this number?

P.S: I still sent to you a private message

Or you can use shift when you're making the circle so that it's perfectly at zero degrees

The Linkage - I tried that but it doesn't work. So, just to make sure that I'm doing it correctly, please give exact details.

This is how I tried it: I clicked on the circle tool to select it. I then pressed and held down the Shift key as I deposited the circle. The angle changed constantly to different values as I moved my cursor around until I deposited the circle. It did not stay at exactly Zero degrees. So what did I do wrong?

this is the most useful scene ever of algodoo it's groious thank you so much