Curve which keeps constant length ?

 From:  TOM (SIRTOM)
8414.8 In reply to 8414.6 
<Interesting topic! May i ask for what you need this?>

Thank you for the tip
Well i am working on a desogn where I need variations of a part
which should have the same length just think of a a bundel of wires of teh same length
which should be bent into different shapes