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Reciprocating Double Rack

Image:
screenshot of the scene

Author: s_noonan

Group: Technical

Filesize: 27.64 kB

Date added: 2011-11-29

Rating: 6.2

Downloads: 1311

Views: 663

Comments: 3

Ratings: 4

Times favored: 1

Made with: Algodoo v2.1.0

Tags:
linkage,
gear

Scene tag
Similar to Number 123 from "Five Hundred and Seven Mechanical Movements" by Henry T. Brown (1871)
Last edited at 2025/04/03 22:36:32 by s_noonan
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Xray
2025/04/03 23:36:08
Very clever mechanism! I'm surprised that I haven't seen it before although you originally published it in 2011.

What do you think is causing that high frequency noise that can be seen in the plot of the Algodoo gears?

What did you do differently for the Algodoo vs the "real" gears?
s_noonan
2025/04/04 11:54:16
Q: What is causing the 2 m/s spikes in both gear plots?
A: That is due to the collision shock between the gear and rack when changing directions.

Q: What did you do differently for the Algodoo vs the "real" gears?
A: Algodoo gears have a trapezoidal profile. Real gears have an involute profile. Algodoo gear teeth slide past each other. Real gears roll against each other with little sliding. Make real gears using Spur Gear Generator II or Mechanical Toolbox.
Xray
2025/04/07 00:34:41
Thanks for the explanation! I almost always learn something from your scenes. _o_