In my off time, the best design I have so far is this: It meats your target but is a ery large spring. Let me know what you think. I work in inches and pounds but if we are close to what you want, I can provide a graph/chart in metric.
The mounting position can be hard to work out in words...
I have a spread sheet I use for things like this (ramp lift assistance spring) I would be glad to try it for you. Let’s see if I have the correct assumptions.
The 15-20 kg you want to counteract is mostly weight at the end of the 600mm long arm, or is it more spread evenly along the 600mm...
Sure I understand.
It’s a good book, but it just occurred to me though that I would feel bad if you got the book just to find out you don’t have enough space. So if you have size constraints, I would be happy to calculate a sample to check for rough fit.
Other info you might need from another...
First I want to say I don’t have much experience with cantilever springs, so if someone else replies with more history defer to them, but that said here is what I found.
If you want fixed predetermined Mass then I think you should expect several trials to get the final result.
Your need appears...
