Cogs

sbtamu · Post by **sbtamu** » Sat Jun 19, 2010 5:18 am

I thought I would test how accurate the new physics was. I made one cog and just kept duplicating the cog until 1000x the original size and I may add that they actually did a good job. All I can see that could be improved is at very large scale there is some problems with line contours.

I am a teacher, and IMO this Physics could be used in the class room to teach kids gear ratios and in a ways Newtons Laws of gravity.

http://www.youtube.com/watch?v=VpBmvxHJCp8

lwaxana · Post by **lwaxana** » Sat Jun 19, 2010 3:26 pm

Awesome, Sbtamu! This is the most accurate gearing animation I've seen in Anime Studio. And I like the way the camera follows from the driving gear through to the last driven gear. It would be a great instructional tool for gear ratios like the animation on howstuffworks.com. You could probably submit it there. Especially if you provided an explanation with the diameters and angular velocities. It could be used to demonstrate mechanical advantage concepts as well.

I saw that recent thread about designing functional gearing for "physics" and I looked through a bunch of my old books and took notes and was getting ready to try some functional gears with involute tooth forms, but then I realized that the instructions I have for drawing them are for the approximated form. And then I was afraid that they might be off enough that "physics" wouldn't work. Nice to see that you found a shape that works! :D

sbtamu · Post by **sbtamu** » Sat Jun 19, 2010 3:52 pm

lwaxana wrote:Awesome, Sbtamu! This is the most accurate gearing animation I've seen in Anime Studio. And I like the way the camera follows from the driving gear through to the last driven gear. It would be a great instructional tool for gear ratios like the animation on howstuffworks.com. You could probably submit it there. Especially if you provided an explanation with the diameters and angular velocities. It could be used to demonstrate mechanical advantage concepts as well.

I saw that recent thread about designing functional gearing for "physics" and I looked through a bunch of my old books and took notes and was getting ready to try some functional gears with involute tooth forms, but then I realized that the instructions I have for drawing them are for the approximated form. And then I was afraid that they might be off enough that "physics" wouldn't work. Nice to see that you found a shape that works!

Thanks, and the hardest part was finding a tooth pattern that worked but they seem to not match up perfectly. I might try and spend a few more hrs. on it and see if I can match the gears a little better. The curve profile tool works great but it adds a slight curve to a straight line when used on a circle.