What does adding or removing twists from your cables do to. The binary cam is a design for the pulley system of a compound bow. It is the changing diameter of the cam that is critical to compound bow function. An example of a roller guard can be seen on a mathews z7, bear attack, bear carnage, mathews z7 tactical, and other bows. The greater the diameter of the cam the less cam rotation required to deliver a length of bow string. Single cam for a compound bow 3d cad model library grabcad. Especially on onecam bows, this method will prove to be much more reliable. Compound bow timing single cam timing dual cam timing. The pse madness 32 is a compound bow of mediumlength. Hoyt does not recommend using any parts on a bow that were not originally available on that particular model from the hoyt factory. Creep tuning for twin cam bows archeryfixarcheryfix. With compound bows there a three adjustment points, tiller, cam wheel timing. More accurate than traditional bows, compound bows are also more complicated instruments and require expertise and skill to properly maintain. As a rule, i only sight in at one range per shooting sessionagain, to reduce fatigue.
This tends to give the bow speed similar to a two cam bow, and accuracy similar to a round wheel bow. Martin archery bow module f7 single cam replacement f series. While some cam and limb models may have similar dimensions and physically fit on another bow, adding those parts can cause negative effects to both the performance and the safety of the bow. In the mid80s, bow manufacturers began making eggshaped cams, which helped increase speed. It is in the ready to be strung position prototype triple limb one cam bow 1995 prototype triple limb one cam bow 1995. Here are 12 simple steps to bulletproof bow tuning that any archer can do themselves with a few simple tools. We were playing with many single cam prototype designs at that time, as well as replicating others to see if we could get performance out of them. Randy ulmer also wrote an article about it some time ago. In order to properly set the timing of your single cam bow you will first need to observe where the timing holes on the cam are in relation to the bowstring. However, it is always wise to check your cams for signs of wear both on the server of your bow string and bow cables, the axles that run through the cams, and the limbs as well. The most accurate and sought after cam system on the market today. This can result in rotated cams, shifted nocking points, deflexed limbs, and even a. Early one cam design made from kamact this is the original photo taken by len subber. Hi david, cant recall exactly, i worked for golden eagle now defunct back in the late 90s.
Larry wise is a world field archery and national target archery champion who knows and understands the bow tuning and performance problems archers encounter. Looking at the big picture, single cam bows may be the biggest advancement in the archery industry since compound bows. Single cam bows are also known as one cam or solo cam bows. The binary cam system is comprised of two perfectly symmetrical cams that are slaved to each other, forcing the cams to turn in perfect synchronization. Hang a plumb bob on one of the arrows in the center of the group figure 1.
The single cam design may eliminate the timing factor in tuning and may decrease the frequency with which a bow must be retuned, but to the extent a single cam bow follows the modern trends toward faster, lighter, and shorter, tuning a single cam bow can still be a challenge. Reilly shows how to check cam timing on a drawboard and demonstrates how to fix out of sync cams. The faster a bow, the more aggressive the draw will be in order to store more energy through the draw cycle. Tuning timing the elite compound bow bow tuning elite compound bows along with several other manufacturers use the binary cam system, nothing i can say would describe it better than the words of the inventors, so below i quote bowtech archery direct. When you try to paper tune one of these bows you are not only fighting the. A fast bow is a fast bow, whether its a singlecam or a doublecam. Bowhunting tuning single cam bows part 1 tuning single cam bows part 1 though timing is less critical, attention to cam orientation, strings, rests, draw length, vibration control, and shooting form are essential components to sharp, consistent shooting. There are over products listed here, so please scroll down or click page 2 at top or bottom of page.
And single cam bows come with their very own tuning considerations. Paper tuning is one of the most common ways compound archers using mechanical releases determine whether their arrows are leaving their bows in a straight line. And while singlecam designs tend naturally to be quieter, these aftermarket devices further reduce recoil, shock, and noise. The support we have received from those in the archery community has been overwhelming, with many opening their homes to us if need be. Follow this stepbystep process and your bow will be shooting bullet holes in no time. The advent of the compound bow began with all bows having two round cams. Tuning a bow is not the easiest thing to do for many. Legion is a single cam bow and thus requires minimal maintenance and eliminates the necessity of cam synchronization. Bowtechs diamond core rak package is a fantastic single cam compound bow with ready to go accessories factory installed.
The most important thing to do is establish a chronological order for tuning a bow. When you are coming to full draw, in many two cam bows, your cam s draw stops are what establish the wall at full draw. French tuning your arrow rest french tunning you arrow rest this is my favourite way of setting my dynamic centre shot, the dynamic centre shot process sets your arrow directly in line with your bowstrings line of thrust. A guide to tuning and shooting compound bows dec 7, 2010 edition. Compound bow diagram, parts of a compound bow compound bow diagram. With you bow sighted in for twenty yards and your cams timed correctly your good shots should hit at the same height when you draw hard against the cam stops or if you allow the string to creep forward a little. Craig yehle, director of research and development at bowtech archery, received a patent for the design on december 11, 2007. Shooting a compound bow with fingers is more like shooting a recurve bow, and lancaster archery supply recommends bareshaft tuning in such cases. An archery trade show is an excellent way of testing new bows. With single cam compound bows you dont have to worry about cam wheel timing but you do need to ensure the arrow is leaving the bow in a straight line and not with an up or down action. At 20 yards from the target, shoot at a dot and adjust the sight until you group your arrows around the dot. Surprisingly, you can find out what adjustments to make to your bow by shooting an arrow.
This timeline can be used with any compound bow to simplify the process while tuning a bow. One of the main things is that the single cam bows do not have an issue with cams being out of sync, which would require tuning to correct. We ship every elite bow with the cam lean set to a predetermined specification. This design features a round wheel on one tip of the bow and an elliptical shaped pulley cam on the bottom. It could be a single cam, twin cam, hybrid, cam and a half, soft, medium, hard, or no cam at all. Yoke tuning can play a big role when it comes to paper tuning your bow. The idler wheels or single cams and an elliptical powercam on the bottom are designed respectively on each end of the bow. If you shoot a compound bow, this book belongs in your archery tackle box. Cam lean is a characteristic of the compound bow that needs to be understood and utilized as a method of tuning. Fix the cam timing, and those holes should become perfect assuming the arrow spine is correct for a given bow, and assuming the archers shooting form is solid. When it comes to tuning a bow, there are thousands maybe that is an exaggeration of ways to tune a bow.
Competitive archery shooters are lining up to shoot the single cam technology and hunters interested in a new bow for 1997 owe it to themselves to at least shoot a single cam bow before making a purchase decision. Single cam compound bows are very popular with archers as they are easy to maintain as they dont require cam synchronization, are quieter, and are usually machined to provide a smoother draw. You wont even be able to tune them well if you dont have reasonably good shooting form. It is a practical, easytofollow, well illustrated guide on high performance tuning for target archery, field archery and bowhunting all compound bows, all bow limb cams.
This bow string option is for single cam bows that have a roller guard. This provides for flawless nock travel and tuning that you can set and forget, maximizing accuracy and consistency. Yoke tuning for a hybrid and single cam bows, you will obviously only need to adjust the top yoke. A comprehesive guide to help you make an informed decision about which compound bow is right for you.
That small piece would be replaced with others for adjustment of draw length. Inspect the bow to insure that the cables and string are in their tracks on the cam and attached to. This is the level we have found to be the most forgiving to get a bow to tune easily. It is easier to maintain and is quieter than twin cam design, since there is no need for cam. I picked up a mathews drenalin single cam with similar specs to what you seek, and love it. Make offer vintage martin archery micro tune overdraw w centershot arrow rest lh.
But dual cam bows can reportedly develop higher speeds at the top end of speed bow designs. Properly positioned away from the grip, they can in effect simulate longer limbs. Paper tuning a bow how to paper tune a bow bow tuning. What archers need to know about cam timing lancaster. These timing holes provide a point of reference and should run parallel with the bowstring while in the resting position. And while single cam designs tend naturally to be quieter, these aftermarket devices further reduce recoil, shock, and noise. Ive seen single cam target bows with the bottom limb bolt two full turns tighter than the top. For single cam compound bows the same principle applies, although for a slightly different reason. Approximately six inches from the top, the cable splits into two, and the two cables are attached to either side of the top limb. Book tuning your compound bow 5th edition by larry wise with a foreword by respected archery expert and technical advisor, norb mullaney. The arrow should sit parallel to the shelf of the bow. Compound bow cable slide bow string separator protector aluminium alloy archery compound bow string splitter roller glide.
On target for tuning your compound bow larry wise on. When things go wrong you will have a quick and easy method of checking your cam timing. Bow tuning is more than just a good idea, it is required if you hope to reach your potential as an accurate bowhunter. Bowtech started equipping its bows with the new cam design in the 2005 model year. The pulley cam system grants the user a mechanical advantage, and so the limbs of a compound bow are much stiffer than those of a recurve bow or. Aug 30, 2007 single cam single cam bows have been very popular for several years. A stepbystep guide to get your bow shooting perfectly. Adjusting a single bolt will raise or lower the nock point quickly on a single cam. The main two marketed bows are for adults and for children. The string feed cam turns the bottom cam assembly as the archer pulls on the bow string green line is the bow string in the figure above. You can also use a draw board which mechanically lets you crank the bow back to the full draw position. The single cam is still a favourite choice on compound bows today. Today, most of the hunting bow industry has moved into some shaped cam designed to store more energy in order to make the arrow release faster in the process.
Properly tuning your bow could spell the difference between shooting your. In general, compound bows are widely used in target practice and hunting. After tuning your bow, check out your strings, cables, arrows and grip on a regular basis to ensure a perfect hit every time. Remove bow from plastic bag and remove the owners guide and other promotional material from the bow. Cam system type really has nothing to do with the relative stiffness of the draw cycle or more appropriately the draw force curve. Piranha custom bowstrings will not be held liable for incorrect bowstring lengths provided by the customer. Refer to this chart when selecting your string color option. Also spray the arrow rest and the shelf the flat part of the bow under the arrow rest. We will also go over the different parts of a compound bow. These bows have a cam at the end of one limb and an idler wheel or round wheel at the end of the opposite limb. A bow press was not needed to adjust or take down to put into a case. The ez center shot tuning tool establishes center shot by a mechanism that attaches to the limb bolts. This page will help breakdown the differences in adult and youth bows.
The single cam compound bow is extremely reliable however some models will be better than others with regards to maintaining level nock travel. In modern archery, a compound bow is a bow that uses a levering system, usually of cables and pulleys, to bend the limbs. Yoke tuning a compound bow to correct arrow flight before attempting yoke tuning, be sure you are shooting with good form and have a torque free gripping style. Follow this step by step bow tuning guide to get your compound bow tuned for the next bowhunting season. French tuning your arrow rest archery tips archery. These timing holes provide a point of reference and should run parallel with the bowstring while in. The archery trade association has an updated list of archery trade shows happening around the country annually. Bowstrings custom made for single cam bows like mathews, pse. If you shoot a compound, this book belongs on your book shelf or in your tackle box. With a draw weight range of 40lbs to 70lbs and draw length from 25 to 30 it is great for most adults and easily adjustable for various situations. When you paper tune your bow, cams that are out of sync can cause tears that are unfixable by adjusting the arrow rest or nocking point. It is all in the design of the cam or cams on the bow, not whether it is a single cam, dual cam, or hybrid. Can i do the same tuning to get my broadheads closer to my field points with this method with my bow. Cam idler single cam compound bow terminology limb buss cables limb weight adjustment bolt weight locking screw sight window bow string cable guard bar cable guard glide.
Compound bows come in a variety of sizes, draw weights and draw lengths. Most of todays bows tune easily when you use the correct initial settings and good shooting form. If your arrow is showing a nock right tear, add a twist to the right. Wide drawlength range from to 31 huge drawweight range from 5 lbs. I have tiller tuned a time or two on my single cam bow. In the olden days, we used to tiller tune our two cam bows to fine tune the cam timingsynch so. We are truly blessed to be able to be a part of a community like this and have made the friends we have. This thorough archery lesson covers how to tune a compound bow single or double cam, from checking for issues to fine tuning the yoke. All this talk of late about super tuning your hunting rig. Most modern compounds are designed with a cable that runs from the bottom cam up to the top of the bow. With single cam compound bows you dont have to worry about cam wheel timing but you do need to ensure the arrow is leaving the bow in a. Single cam bows and todays hybrid cam bows have a much smaller chance of going out of tune than traditional two cam bows. A gear heads analysis of compound bow function technical. Fixing cam lean on an ok archery compound bow duration.
The strings and cables will stretch as you start shooting, and any tuning that you do will be out the window 10 to 15 arrows later. Thanks to its hybrid cam, this bow adjusts like a single cam, but gives you the high performance you want from a hybrid cam bow. Unlike single and hybrid systems, there was no splitharness on the original binary cam system just two cam to cam control cables. A fast bow is a fast bow, whether its a single cam or a double cam. Tuning and timing the elite compound bow binary cam system. A guide to tuning and shooting compound bows nov 15, 2010 edition. It allows for half inch increments in the rage of 26. A compound bow is an advanced type of bow that uses pulleys and stiff limbs, rather than bent limbs, to produce adequate force to shoot an arrow. I have noticed that all the bows being tuned are dual cam. Tuning your compound bow by larry wise is a must have book if you are serious about the sport of archery. Single cam single cam bows have been very popular for several years.
Timing a bow with two cams will require a friend to observe your draw stops while you are drawing the bow. Included you will find information on cam timing, arrow rest position, arrow nock position, paper tuning and much more. When all compound bows had two wheels, tuning one was a complex process best left to a pro. You may test one bow that is bad and then grab an identical bow off the shelf next to it from the. Whether you use your bow for target practice, bow hunting or fishing, learning to tune a bow can be a worthwhile endeavor. The drawback to single cam bows is that the nocking point does.
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