floating clamp tightness when stringing crosses?

#1
I've just started stringing with a Gamma X-2 with two floating clamps. When stringing crosses, is it typical to adjust the clamp to be tighter than when stringing mains? It seems like with the mains "in the way", the clamp does not get as much contact with the crosses as when stringing the mains. Thanks.
 

am1899

Hall of Fame
#2
Make sure when you’re clamping the string on the crosses, that you’re getting the string all the way down into the jaws of the clamp. If you’re clamping further up - where the string is in line with the teeth of the clamp, this is not ideal...and sometimes a tighter setting on the clamp is required.
 
#3
I find it's actually the opposite. I need less tightness on the clamps when doing the crosses, since the crosses are weaved through the mains causing friction, thus helping keep the crosses in place. So I am able to start my crosses without fussing with the clamps.
 
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#4
You are correct in your assessment that you have less gripping power when you are installing the crosses because the clamp teeth are tapered and the deeper the bite the more contact you will get. I do my clamp adjustment visually. I have swivel clamps though.

My first adjustment I am relying on marks on the adjustment dial. This gets me pretty close.



Then I use a Flair pen to make marks on the string while the tension head is pulling and watch to make sure there is no movement of the marks when the tension head is released.The mark is placed between the last 2 teeth closest to the tension head.




The object is to eliminate or at least minimize slippage without damaging the string. Over adjustment will cause crushing which is not desirable.
 

kkm

Professional
#5
Right, because the mains are already in, there is less surface of the clamps touching the string when clamping crosses. I usually have to tighten the clamps slightly when doing the crosses - this is on the Baiardo at my main job.
 
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