What is a Fletching Jig (tool)?

In archery what is stacking?

"Stacking" refers to what happens when an archer overdraws their bow (pulls the string too far back). It gets very difficult to pull back after a certain point, and this rapid increase in draw weight is referred to as stacking.
Credit: What is bow stacking? - Quora

How does a person tell if their bow is "stacking" ?
Is it dangerous...meaning, does it stress the limbs?

You'll feel the bow begin increasing weight rapidly after a given point. The most severe case has been likened to hitting the wall on a compound (OK, slight exaggeration). All bows stack at some point, the trick is to get a bow that stacks AFTER you've reached full draw, then by definition, it doesn't stack - FOR YOU.

The reason for stacking are either surpassing the expansion or compression limits of the back or face of the bow (respectively) or reaching a point where you're actually pulling the limbs apart longitudinally, rather than bending them. While it's not a good thing for the bow.,most production bows are over-built enough where it shouldn't be a problem. Still I can't see repeatedly doing it doing the bow any good and it certainly doesn't help your shooting one bit.

Credit: ArcheryTalk.com

Archery/Bowyer Tips and Tricks: What is "Stack"

Dealing with stacking?

Extremely recurved asiatic composites with string bridges have low leverage early in the draw (functional length of the bow reduced to distance between string bridges), high leverage mid draw, and low leverage at the end. Also when releasing, the functional tip, or so I imagine, experiences low to high to low leverage as the limbs return to brace.

Now my question: wouldn’t this reduction in lever length, when the limbs return to brace, be disadvantageous for arrow speed? After all, a car that wants to get as fast from 0 to 60 mph or 100 km/h does this by continuously increasing gears, not decreasing gear. The faster the tips move, the faster the arrow can be propelled. Recurving has an advantage of having higher string tension, and yielding higher draw weight at the end of the power stroke, but could it be that in strong recurves, there’s a hidden price to be paid of reduced leverage?

Admittedly, at the end of the return of the limbs, the arrow isn’t pushed forwards strongly anymore (as this is determined by the cosinus of the string to arrow angle, which closes in to zero as the angle approaches 90°), so this gearing reduction might be of marginal importance to bow efficiency. But then again, long limbs moving back to brace make for faster tip movement (the tip of a blade of a windmill always moves faster than the mid section of a windmill). My gut feeling tells me this is also the reason why a straight bow is close to the most optimal design in self wood bows.

Credit: TapaTalk.com

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