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Spring Rope

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Author: s_noonan

Group: Default

Filesize: 85.9 kB

Date added: 2023-10-14

Rating: 5

Downloads: 462

Views: 149

Comments: 4

Ratings: 1

Times favored: 0

Made with: Algodoo v2.1.0

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Spring Rope inspired by UnityDogGaming04.
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This scene is a response to:
Title Author Rating Downloads Comments Date added
Scripted rope and uhhhhhh reverse rope UnityDogGaming04 5.6 (2 votes) 634 2 2023/10/12 21:18:44
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I see that you attached the ends of the springs to hidden pulleys that are behind the metallic-looking pulleys. Did you do that because you were not able to wrap one long spring around the two pulleys? Would it produce a different result if you had done that? :s


For anyone interested, here's an excellent article on the Block and Tackle
Last edited at 2023/10/14 16:22:59 by Xray
Q: Did you do that because you were not able to wrap one long spring around the two pulleys?
A: Yes.

Q: Would it produce a different result if you had done that?
A: No, I would expect pulley rotation and "rope" tension to be about the same, but springs don't wrap in Algodoo.

I added the metallic pulleys so that the pulleys would appear to be in synch with the "rope".

Thanks for the article link. Why Snatch Blocks are AWESOME (How Pulleys Work) - Smarter Every Day 228 is also good.
"Smarter Every Day" is one of my favorite YT channels. It's educational, understandable, and even entertaining at times.


"springs don't wrap in Algodoo."

True. They don't flex, and they don't collide with anything. SOOOooooo.... I tried an experiment. I made a "spring rope" out of a number of very short sections of springs with a small circle in between the links in order to provide a collision layer for the "rope". It almost worked. The problem I was having was the chain of springs was very unstable and tended to shake itself apart. I finally got it to settle down by damping its shaky behavior with air friction. Simply increasing the spring damping factor for all the springs did not seem to help the situation. When I finally got a long, stable rope spring with about 60 to 70 segments, I found that it was extremely weak. Trying to use it as a rope in a block and tackle assembly just did not work. No mater what I tried I could not make it do what I was hoping it would do. :(
Last edited at 2023/10/14 22:49:48 by Xray
I did something similar in Massive Spring and resorted to air friction. I'm not sure how spring dampening scales.