Just a thought, can anyone see any reason why you could not use a legnth of curtan spring as a liner for the wire to run through. and it should be hard enough being a spring, and may be cheaper. any opinions.
Just get yourself a cheap chinese one, they are half the price and work a quarter as well.
Tell me you are joking?! Liners are not expensive to start with. Yorkshiremen
weldequip