When comparing compound bows, we use a standard measurement called IBO speed. Your stance, draw length, and anchor point all need to be the same with every shot if you want to become more accurate. When a bow designer creates a solid wall, it encourages a consistent draw length. This is a very good thing for the archer. This stops the motion, giving the bow a solid back wall. These are pegs that are designed to come in contact with the arm of the bow or the harness. Sometimes the bow designer includes draw stops to intentionally give the bow a rock solid back wall. A round shape will give you more of a mushy back wall that allows you to keep pulling. A more flat shape will make the bow feel like it has a hard back wall.
Compound crossbow diagram full#
This is all determined by the shape of the cam where it meets the harness when you are at full draw. Others are softer and allow you to keep pulling if you desire. Some feel like they are locked in place and cannot be pulled back any further.
One of the first things you will notice when testing out compound bows is that each bow feels differently as you come to full draw. Here’s our guide to finding your ideal draw weight. Let-off occurs when you have the best mechanical advantage giving you maximum leverage. It allows you to store more energy in the bow with less strain on your shoulder. This explains why you feel more weight when you first draw the bow, but feel let-off when you get to full draw. If you watch the draw of a compound bow, you will notice that the harness starts out away from the axle and moves towards it, while the bowstring starts close to the axle and moves away. In this case one branch of the teeter-totter extends from the harness to the axle and the other one extends beyond that from the axle out to the bowstring. If the weight moves further from the axle, lifting becomes more difficult. If one weight gets closer to the axle, it becomes easier to lift that weight. This is a simple lever rested on an axle with an opposing weight on each side. To explain how let-off works, I want you to imagine a teeter-totter (see-saw). When using hunting bows, these two factors are huge in determining accuracy and arrow penetration. It can also adjust the let-off allowing you to hold more weight longer as a target comes into view. By adjusting the shape of the cams, you can increase the energy stored which makes for a faster arrow speed. The shape of the cams is what determines the speed of your arrow along with how the draw feels. In this case, there are actually two harnesses that work to create energy. As you draw the bowstring, you wrap the harness around the cam and pull the arms towards each other. In a conventional two cam compound bow, the harness is attached to the cam on one arm and the axle on the other. This system always has a string, one or two cams, and one or two cables or harnesses. The compound bow was designed based on a mechanical system called the Eccentric System. The limbs are pulled toward each other instead of back towards the archer. Compound bows are designed in more of a ‘C’ shape. Pulling the bowstring back creates energy which is then released as the arrow flies.
Long bows and recurve bows work by using the arms of the bow as springs. I instantly understood why the recurve stayed in the closet.Īny bow works by storing energy and then releasing it. He also had a recurve bow, but he rarely used it, and I always wondered why? As I got older, I had the opportunity to draw back both bows. As a child I remember watching my father shooting his beautiful wooden compound bow in our back yard. Since I was just a boy I have loved and respected archery. If you’re just looking to simply identify the parts of the compound bow, check this out instead.
How are they calculated? What do they mean? Why does it matter to you? We’ll cover everything from the basic principles of the compound bow through all the specification figures you’ll often see printed on bow literature. You might know a little or you might know a lot. Modern crossbows can have crossbow scopes attached so the archer can quickly aim and take their shot.In this article we’re going to introduce you to compound bow basics. Crossbows are preloaded with crossbow bolts before an archer has to pull the trigger. Crossbow Parts and Accessories need to be replaced as well.Ĭrossbows allow bowhunters to hunt sooner, longer, and with deadly accuracy. If you're looking for crossbow parts, you've come to the best place on the internet for archery equipment! The Most Commonly Needed Crossbow PartsĮvery tool for hunting or shooting has parts that need to be replaced due to wear and tear and other parts just simply need to be improved for superior accuracy. Have a successful hunt this season with all the crossbow parts you need to ensure your arrow flies straight.
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