snorkz, Spin control is a bear any way that you look at it. The controls are set up so that the object will spin X times per second. If you are rendering say a propeller, you will need to have a very high value to show the speed of the propeller. Try not to make X the number of Frames Per Second (FPS) of you animation as you might as well not have the spin modifier. If you are trying to get the speed of a planet in space, well, that's a very low value, and I don't mean negative. I'm creating a planet animation and I've found that integer values just don't cut it!! But manual entry of decimal values work REAL well. .5 being 1 rotation every 2 seconds, .25 being 4 rotations per second, and so forth. I've found that .1 or .05 work well for my situation as this slow the rotations to a virtual crawl and makes it seem realistic. Hope this helps! Ken