How to build a roman crossbow

By Yozshujora | 07.07.2020

how to build a roman crossbow

Roman Crossbow Reconstruction

Mar 18, Drill two 3/inch holes in the bow (the inch-long dowel), each about ?-inch from one end. Insert the bow into the ?-inch-diameter hole in the crossbow body, until it is centered halfway. Take the stirrup and bow irons together, as shown in Fig. 61 and, with center of the back of the bow being against the base of the stirrup, pass the bow through the irons. Place the base of the stirrup and the bow in the opening (A, Fig. 46), in the forehand of the stock, with a bow iron on each side of the stock.

Last Updated: July 25, References Approved. To create this article, 31 people, some anonymous, worked to edit and improve it over time. This article has been viewedtimes. Learn more A crossbow is a weapon that has a horizontal bow mounted on a stick, called a stock. It shoots projectiles, called bolts, at a target. Modern crossbows are compound crossbows which have stiffer limbs to make the bow more energy efficient and a string attached to a pulley system to make it easier to draw back with increased power as the bolt is fired.

The pulley system also ensures a smooth release of the bolt. Using supplies from your local hardware store, you too can make your own crossbow. Once you have your pine board, you'll need to figure out where you want the trigger and handle, which you can do by holding the stock against your shoulder.

After cutting the trigger and making a groove in the stock to hold the string, create a grip by adding another piece of wood to the bottom of the stock. Finish your crossbow by attaching PVC pipes and pulleys to make the bow. To learn how to make the bow what is the meaning of a 21 gun salute PVC pipe, keep reading! Did this summary help you?

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How to register to paypal without a credit card image may not be used by other entities without the express written consent of wikiHow, Inc. Measure wood for the stock.

You need to have the stock a comfortable length for your arms. Hold it in your hands similar to a rifle with one end pressed against your shoulder and your hands gripping the wood. Find a comfortable length and mark the wood where you want it cut.

The longer your stock is, the more power you will achieve. However, it is not wise to go over 1 meter 3. Saw off the extra wood. Use a circular or hand saw to cut the wood on the mark you made for length. Use safety goggles to make sure you don't get how to build a roman crossbow in your eyes.

Saw in a well ventilated area. Mark the area for a trigger. Hold what does omnes mean in latin the wood again as you would a crossbow stock, with one end pressed against your shoulder and your hands gripping the wood. Make a small mark where it feels comfortable to have the trigger and the handle. Draw a rounded rectangle shape in the center of where you marked the trigger.

This needs to be drawn on the top of the pine wood, not the side. The rectangle should be around 4 inches long, and 1 inch wide. Make sure the rectangle is drawn in the center of the wood where you have marked it. Cut the rectangle out of the wood.

Using a chisel, drill and wood rasp, gouge out the wood within the rectangular area while being very careful not to split the wood. Use a combination of all three tools to slowly remove the wood inside the rectangle until you have a rectangle shaped hole. Use sandpaper to smooth the area around the hole after you have finished.

Make the groove to hold the string. The groove will create a place for the string to rest horizontally across the rectangle hole. Sand the groove after it is cut. Cut the groove that holds the bolt. This grove will be centered and how to apply gcash card from the rectangle hole to the end of the wood. Find and mark the center of the end of the wood, farthest from the string groove.

Find and mark the center of the end of the rectangle hole, farthest from the string groove. Draw a straight line between the two marks. Sand the groove until completely smooth. Create the grip to hold when shooting. Use a second piece of pine wood to make the grip. Cut the wood to be around 8 inches long. Use PVC glue or wood glue to attach it to the bottom of the stock, making sure it is centered.

Leave the glue to dry for at least an hour. Protect how to remove stains from alloy wheels wood with sealer. How to build a roman crossbow varnish, wood stain, or another wood sealer to ensure the wood will be protected from the elements.

Wait until the glue has dried completely before applying a sealer. Part 2 of Cut the PVC pipe. Cut a groove into the ends of the PVC pipe. On each end of the PVC pipe, use a hacksaw to cut a small groove just large enough to fit a small wood screw. Attach the pulleys.

The pulleys are attached to either end of the PVC bow, and the string will feed through them. Insert a small wood screw on both ends of the PVC pipe. Attach the pulleys to the wood screws on either end of the pipe using wire ties. Thread the string. The nylon string needs to be threaded through both pulleys correctly for the crossbow to be able to fire. Securely tie one end of the nylon string to the wood screw on the left side of the PVC pipe. Bring the string across to the pulley on the right end of the PVC pipe, and loop it in and around the pulley.

Bring the sting back to the left side and loop the string in and around the pulley on the left. Finally, bring the string back to the right and tie it securely to the right wood screw. Do not pull the string tightly when you wrap around the pulleys or you will not be able to pull it back to fire the crossbow. Check the string for accuracy. It's important to have the string threaded correctly. The string should run across the PVC pipe 3 times.

Do a quick test to make sure you have threaded the string correctly. Pull on the string coming out of the pulleys. The PVC pipe should flex like a bow. If the pipe does not bend slightly like a bow would, pull the thread out and start again. Part 3 of Create a groove for the bow on the end of the stock. The wood of the stock needs to have a groove carved in for the round PVC pipe to snugly fit. Use a wood rasp or chisel to carve out a rounded groove wide enough to fit the pipe on the end of the wood stock.

The groove needs to be deep enough to fit the PVC pipe securely. Carve slowly while repetitively checking how the pipe fits. This will ensure you end up with the perfect fit.

Longbow Vs. Crossbow

Aug 28, Crossbow Building Wiki is a community site that anyone can contribute to. Discover, share and add your knowledge! Designing medieval nut and trigger crossbow locks - Crossbow Building Wiki This article describes design aspects of a simple nut and trigger lock commonly seen on medieval crossbows. Part of the above mentioned crossbow wiki, this. Gather your spring tighteners, 4 finish nails, bow limbs, springs and a 60" length of para-cord casing (pulled off the springs in previous step). There are notes on the pictures below for reference. Attaching the limbs. Thread one of the spring tighteners into the loop of strings.

Years ago I found this image of a 4th century AD Roman crossbow, taken from a bas-relief in France and reproduced in a 19th century text, Dictionnaire des antiquites grecques et romaines: Arcuballista, Manuballista according to wikipedia. I was drawn to making it because it was such an odd little beast. Unlike later crossbows, there is no shoulder stock or stirrup.

It appears to have a rolling nut and a groove for the bolt. It also looks like the string passes inside the stock, but I'm going to assume that was artistic license on the part of the stone carver. I made the stock out of oak, then put the project aside for a few years because I didn't feel up to tackling the prod bow.

So unfortunately I do not have any photos of the early stages of construction, but it's pretty straightforward. I did the inner shaping first just a simple slot for the trigger , then sandwiched the two halves together. I turned it on a lathe to create the handle, and that's about all it took to make the stock, as I recall. I would like to mention at this point that I made the thing way too small. As such, this is a very, very low power crossbow.

It is still fun for paper targets though. Don't worry, no GoPros were harmed in the making of this video. In the photos you can see the channel for the cylindrical nut. I made the nut from oak dowel of the same diameter, then shaped it carefully with a bandsaw to make the prongs that hold the string.

I also inserted a short length of all-thread through the nut from top to bottom to form the 'face' that the tickler trigger rests against. I placed a little section of spring in the slot below the roller nut channel to return the trigger mechanism. Given the low power of the bow, brass would have been fine. You can see how the tickler is held in place with a nail that it pivots on. The idea is that the end of the tickler, held up by the spring, rests against the all-thread face of the nut, preventing it from rotating until the trigger is pulled.

I was finally motivated to finish the crossbow when I learned you can make functional bows with some PVC plumbing pipe, a heat gun and a couple of clamps. PVC is easily flattened and shaped when hot. I will not go into detail here because there are already quite a few Instructables on the topic and lots of resources out there and I am not an expert.

I highly recommend Nick Tomihama's "Backyard Bowyer" books for anyone who wants to learn more. The prod sits in a slot in the front of the stock, at a slight angle to prevent string friction. I bound it in place with polycord which I also used to make the string. It's not ideal because it is too stretchy but I just wanted to see if it worked. Reply 3 years ago. This is really cool! What did you do to make the trigger mechanism? It turned out looking awesome! I'd love to see more pictures of the build process if you have them.

Reply 5 years ago on Introduction. Unfortunately I don't have any photos of the interior construction, it was too long ago. But if you check the wikipedia article on 'crossbow', under 'construction' there is a vector graphic of the roller nut trigger mechanism - that's exactly what I did.

Introduction: Roman Crossbow Reconstruction. By spookylean CookRookery Follow. More by the author:. Also please do note crossbows are dangerous weapons and may not be legal where you are.

You can also find a scalable vector graphic of this idea on wikipedia. It did! Thank you for reading. Did you make this project? Share it with us! I Made It! Light Up Plaque by kaitlyn.

Kid Name Circle Board by julien. Reply Upvote. Edbed 5 years ago.

5 thoughts on “How to build a roman crossbow

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  2. Maujin

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  3. Ditilar

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