Chapter 34: Compound Bow

Abel is ready to use this time to strengthen his strength, first of all, in terms of weapons, this battle, if he has a long-range weapon, he can attack the werewolf from a distance, and he can also block the approach of the werewolf from a distance, at least it can slow down the werewolf. Pen @ fun @ pavilion wWw. biqUgE。 info

Abel thought a lot about long-range weapons, and Abel also researched the bow and arrow of this world, but he wanted to make a 70-pound compound bow that he used on Earth.

The advantage of this compound bow is that at 80% of the effort, you only need 14 pounds of tension to keep the bow full (70× (1-80%) = 14), and the user can take their energy away from drawing the bow and let their attention be more focused on aiming and adjusting their posture.

At a 60% effort saving ratio, 28 pounds of tension is required to keep the bow full, the bow will have more energy storage, and the arrow will often shoot faster.

In these two states, you can choose the labor-saving ratio of the bow by yourself, and adjust the high or low labor-saving ratio of the compound bow according to the actual situation.

The current Abel has a very deep memory of the past because of his strong mental power, and Abel remembers the various components of the compound bow and the size of the components very clearly.

The compound bow is composed of falling wheels, power wheels, upper and lower bow arms, bow handles, bow arm seats, bowstring slide sleeves, bowstring shock absorbers, arrow rings, handles, main strings, secondary strings, bow piece shock absorbers, string stoppers and other parts, plus accessories arrow base, arrow platform, sights, hair spreaders, shock absorber rods, peepholes, wrist ropes, etc., it forms a complete modern composite bow.

Although the level of this world is limited, the power that people in this world can exert is much stronger than that of humans on the earth, at least Abel has never heard of someone in the original world who can split people and horses in half with a sword, this is still in the case that Marshall Knight is only an intermediate knight, if it is a more advanced knight, what kind of power will Abel have.

And now Abel's strength is stronger than that of most people on earth, and he is only 13 years old now. Abel now estimates that his strength is probably over 400 pounds, and when he was on Earth, as a fitness trainer, he could only pull a 70-pound compound bow, and a stronger compound bow could not be pulled.

Therefore, although the material of the composite bow cannot be found in this world, because the people in this world are stronger, especially from Abel himself, the composite bow is made by himself, and it can be replaced by a stronger material, without considering the weight.

Abel drew all the components in the same pattern, marked them with dimensions, and considered what kind of materials to use.

With the wheel and the power wheel Abel consider using bearings to make the rotation support of the two wheels, reduce the friction coefficient during their movement, and ensure their rotation accuracy, the two wheels are made of Bailian rough billet.

The upper and lower bow arm Abel is not ready to do it himself, because it is too time-consuming, his idea is very simple, to disassemble two heavy bows, the production of heavy bows takes a long time, and the materials are the best, Abel knows that there are several 200-pound heavy bows in the warehouse, which are the strongest bows in the castle, but those bows are rarely used, because there are not many people who can pull the bow, only apprentices above level 4 can pull it apart, but pulling away and aiming are two different things, and after pulling away, you have to maintain the same force to aim, then the user's strength must reach more than 300 pounds, or even higher to ensure that the use of heavy bows has spare strength。

So those heavy bows have been kept in the warehouse and few people use them, only the weapons custodian in the warehouse do some daily maintenance, Abel thought that if he took two heavy bows apart, he would have bow arms and two bowstrings.

Both the upper and lower bows use the bow arm part of the heavy bow and the bow arms of the two heavy bow are glued together to get a stronger bow arm than the heavy bow bow.

Shock-absorbers, bow blades, and stoppers are made of wood, while bows and arrowheads are made of rough billets.

After Abel planned everything, he began to make compound bows, two heavy bows were found by Abel from the warehouse, and a bow maker was found, Abel himself did not have the confidence to make a qualified bow arm, because the bow arm is the main source of strength of the compound bow, and it is also the guarantee that the power can be exerted after the bow is finally completed, Abel believes that it is better to find a professional person than to slowly fail again and again.

The bow maker he found dismantled the two heavy bows very painfully, and then cut them into the size required by Abel according to the drawings provided by Abel, and then glued the two bow arms together with fish skin glue, and the final product made Abel very satisfied.

As for the shock absorber, bow shock absorber and string stopper, Abel hired a carpenter, and under Abel's guidance, he also met Abel's requirements.

Slowly, the parts were almost ready, and the final bearings could only be made by Abel himself.

It can be said that the bearing is the most important part of the mechanical equipment on the earth, and it is very difficult to make, the bearing is composed of an inner ring, a ball, an outer ring, and there is a raceway between the inner ring and the outer ring, and the ball rolls between the inner ring and the outer ring.

Abel first made balls, and it was very difficult to make balls with current technology, because there were no industrial machine tools, and Abel was also very stressful as a master blacksmith.

He first made a vernier caliper, and then slowly forged a small piece of iron with a sledge, and after it was rounded, he continued to measure it with a caliper, and then forged, Abel did not expect that a standard spherical ball would take so much time, and it took half a day to make a small ball, which was completely spherical in the measurement of vernier calipers.

After completing the production of the first ball, Abel used a mold method of clay green sand mold, using clay and an appropriate amount of water as the main binder of the molding sand, and made a sand mold of thirty balls with the first ball.

Each bearing only needs 12 balls, but Abel is ready to make more spare, originally thought that the most troublesome is to turn iron into molten iron with charcoal, and asked Master Bentham to know that there is a special natural fire additive in this world, if you want to turn iron into molten iron, as long as you put these natural fire additives in the heating process, you can easily turn iron into molten iron.

Abel poured molten iron into 30 ball molds, waited for it to cool and took it out, and then polished it to perfection.

According to the size of the ball, Abel calculated the size of the inner and outer rings, as well as the depth of the raceway, and these fine forgings were successfully completed with the help of Abel's mental power.

The next thing is to combine the inner ring and the outer ring with the ball, which has been introduced in many physics lectures and documentaries, Abel took out some ice from the ice cellar, put the inner ring in the ice, and then put the outer ring in the furnace, after a while, due to the principle of thermal expansion and cold contraction, the inner ring, the ball and the outer ring can be stuck together in order, and after the temperature is normal, the bearing that Abel wants is made.

Press down and fix the bearings and the finished falling wheel and power wheel, and install and shape them step by step, and finally Abel made the world's first composite bow.

Since this compound bow could not be left empty, it was evening time, and Able put the compound bow away.

Early the next morning, after playing with Black Wind for a while, Able took out fifty arrows from the warehouse and came to the archery range to test the new bow, because this compound bow was too weird, so Abel emptied the archery range.

The first arrow was taken out, stuck on the arrow platform, and pulled the hair spreader hard, Abel never expected that the strength required for this bow was so great, the combined strength of the two heavy bows was definitely more than 400 pounds, Abel almost used all his strength to barely pull the bow apart, and when it was completely opened, he felt that he would save effort all of a sudden, as long as it took less than 100 pounds of strength to maintain the posture of pulling away.

Abel aimed the crosshair of the sight at the target at 50 meters, pressed the trigger on the hair spreader with his hand, and the bowstring sounded lightly, and the arrow flew out, and the distance of 50 meters hit the bullseye in a straight line in the air, and then after hitting a round hole in the bull's-eye, he continued to fly backwards, until he hit the parapet wall 30 meters behind before falling to the ground.

The 50-meter target is already the farthest target in the castle, and although Abel has tested the launch and aiming of the compound bow, the longest range has not been tested.

Abel held the compound bow in his hand, looking at the round hole in the center of the arrow target in front of him, the bow and arrow flying in a straight line within at least 50 meters Abel had never heard of it, this compound bow was already the most technologically advanced bow in the world.