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Can someone help with 2 questions?

Question asked by 1-QSSKVI on Dec 16, 2010
Latest reply on Dec 16, 2010 by Deepak Gupta



My first question:


Is it possible to make a pulling spring which can actually compress and decompress in an assembly? I made a roller chain and at the end there is a

spring attached. When I pull the chain, the spring will decompress.When I release it, the spring will compress again. The picture will tell the story:



2nd question:


Can you limit a rotation in the assembly? See image below. I want to twist the "steering knob" sideways and it must stop at, let's say, 20°.


Thank you very much in advance!


With kind regards,




Ps: I'm not English so maybe some things are spelled wrong or something