THE MOST REVOLUTIONARY DEVICE
The most important accessory you will purchase for your bow is the arrowrest. Other than the bowstring, it is the only link between the bow and arrow. You are now confronted with about two hundred different arrowrests priced from five to one hundred and fifty dollars. Your choice of arrowrest depends upon the type of bow, type of arrow, fletching, nock, whether or not you use a release and your type of shooting, hunting, target or 3D.
Ideally an arrowrest should support
the arrow for just enough distance to establish good flight and then
get out of the way. More than a few inches of "guidance" introduces
the effects of arrow flexing which makes tuning difficult. With presently
available arrowrests, this flexing arrow is forced down and through
two horizontally fixed points (the arrowrest) for the full length of
the arrow. It begins to fishtail and porpoise before it leaves the bow.
Each time any portion of the arrow contacts the arrowrest, no matter
how minute, flight and speed are affected.
Introduction to the AUTOREST
The Autorest is a springless cableslide driven dropaway arrowrest. As the bowstring is drawn back, the cables move the slide which is coupled to the linkage to grab and lift the arrow into firing position.
When fired, the Autorest guides the arrow for a few inches of flight before being driven downward by the synchronous movement of the cables eliminating arrowrest contact with the rear three-quarters of the arrow where most arrow flexing occurs.
The Autorest is not sensitive to arrow diameter or nock to fletching to string orientation. The claw type rest prevents the arrow from falling off or through the rest.
The Autorest linkage weighs about 2 ounces and is supplied with necessary accessories which can include overdraw bracket and cable guard.
The integrated overdraw feature allows one to shoot the shortest possible arrow of any rest system without the associated problems. Because the rest is not in contact with the arrow when torquing occurs, torque related problems are reduced or eliminated. You get all the advantages of overdraw without the disadvantages.
The Autorest is the only arrowrest you will need for hunting, 3d, target
or bowfishing and can be used by finger or release shooters. Autorest
will fit right and left hand bows.
The following is a detailed explanation
Arrow falling off or through the rest:
Upon drawing, the Autorest claw configuration grabs and lifts the arrow out of the shelf and locates the arrow into the vee groove rest, ready for firing.
Because of the vee groove rest, no arrow regardless of diameter, will fall through the rest. The claw portion of the rest prevents the arrow from falling off the rest if the arrow is bumped or if you suddenly turn to shoot.
Fletching and nock contact:
Because the arrowrest is driven down and away from the arrow after several inches of arrow movement, there is no contact with the fletching or nock. Fletching to nock to string orientation is not critical. There is no need to use special low profile or adjustable nocks for clearance.
The Autorest does not contain any springs. A bow is basically a spring that stores and releases energy. When an arrow is pushed from the rear, it compresses and buckles or deflects at its weakest point. It behaves like a spring. It will recover or snap back after a few diminishing deflections. This is where tuning problems arise. Spring loaded and other resilient (plastic) arrowrest try to follow and "smooth out" these "bumps." Trying to tune a spring-loaded rest to follow the flexing arrow is a challenging and sometimes impossible task. The Autorest quickly gets out of the way of these "bumps." This allows the arrow to quickly find its own natural flight path.
The Autorest, due to its springless dropaway operation, is very tolerable
of different spined arrows.
Noise and wear:
The Autorest is rugged and quiet. It is constructed of high performance
thermoplastics and aluminum. The claw and rest portion is made of a
tough wear resistant material. Because the arrow is in contact with
the rest for only 2 or 3 inches of travel, the rest will last for many
thousands of shots. The Autorest does not require any lubrication and
is not sensitive to the elements.
When an arrow is launched from a bow and the bowstring and limbs suddenly
stop their forward motion, a torque or twist is developed in the wrist
turning the bow. This torquing can transmit arrowrest contact to the
arrow which has just left the bowstring but has not yet cleared the
arrowrest. This point of contact, which can be the arrowshaft, the fletching
or the nock is responsible for many tuning problems. This contact problem
does not exist with the Autorest because the rest is driven down and
away from the arrow by the synchronous movement of the cableslide actuated
linkage. In short, there is no rest at that point at that time to affect
Torquing and overdraw
(Keep in mind the previous paragraph.)
For those who do not use or like overdraw,
The advantages of overdraw have long been recognized. A shorter, lighter arrow can be used giving the shooter higher speeds and a flatter trajectory. There is one major disadvantage. As the arrowrest is moved farther from the riser, torque related problems increase. Again, this problem does not exist with the Autorest because there is no rest at that point at that time to affect flight.
The Autorest gives you all the advantages of overdraw without the disadvantages. The Autorest enables you to use a shorter arrow, especially on low brace height bows.
Most overdraw/rest configurations have the problem of the cables hitting the overdraw bracket, limiting the amount of overdraw. The Autorestís rest is between the overdraw bracket and the cables. This arrangement allows for maximum overdraw.
Although Autorest uses an overdraw bracket and a set back rest, it
does not mean that you must use a short arrow. Longer arrows fly extremely
well. The overdraw bracket is primarily used to mount the stop plate
which is part of the elevation adjustment for the arrowrest.
A properly adjusted Autorest will not decrease arrow speed. The Autorest
roller slide contains 2 rollers to reduce friction to a minimum. The
arrow speed increase is a result of the quick dropaway feature, which
reduces arrow to rest friction by 70-80%.
Shock and vibration:
When fired, the forward and downward movement of the Autorest linkage
helps to absorb and dampen shock and vibrations developed in the bow.
Elevation and windage:
The elevation adjustment, of the
Autorest, consists of a self-locking pointed setscrew, located in the
main arm, that upon full draw, seats into a vee grooved stop plate fastened
to the overdraw bracket. This approach guarantees exact repeatable arrow
rest height with no horizontal movement. The windage adjustment is a
simple but effective split clamp arrangement.
During a recent rehearsal for a Eastern Pennsylvania TV sports show,
a Buckmaster bow equipped with an Autorest was to be used to demonstrate
broadhead tuning techniques. I later learned that a bow with a high
quality conventional rest had to be used because the shooters could
not get any of the various hunting arrows to fly poorly with the Autorest.
Conclusion: The better an arrow is launched, the better it flies.
Comments from users:
Thank you for reading this report explaining how and why the Autorest differs from every other arrowrest.
Several years of intense research and development
have led to the development of the Autorest to eliminate all arrowrest
related problems and make archery a more enjoyable sport for all.
President, A Design Inc.