Scale Wooden Crossbow

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Introduction: Scale Wooden Crossbow

About: I am now an engineering student
version 2

version 1

In this Instructible I will show you how to:

-Create your own scale (1m,1m) crossbow that is powerful enough to punch holes into various items.

-Bow saftey

-where to get materials

-what tools to use

-prices and information

-general tips on fine tuning

(4 years later: please note that I no longer post to this website, I post my projects here now: http://sites.google.com/site/paulmprojects/ )

Step 1: 1: Gathering Materials & General Instruction Information:

Materials:

-a 2/4 (preferrably a soft wood like pine)or any wood that is wide enough for your adapted crossbow.
-at least tow peices of bamboo
-kite string (a nylon string NOT WIRE)
-a wrappable wire
-door latch (see photo)
-string
-assorted nails and screws (of the 2" and 1" varity)

::note::All these materials came from a mere two stores; Home depot(wood and door latch) and Dollarmart (bammboo and kite string)

Tools

-hammer
-screwdriver
-file
-nippers
-pliers
-file (small)
-sandpaper
-saw

::note:: I used a band saw, although it is not made for wood, you can use any other saw you see fit (wood saw that is)

Step 2: Cutting the Board

I cut mine into the firing stage and the butt in one go; the measurements are on the photo (yours can be different!. I used some pine I found, but an equivilant board costs around $5:00.

::NOTE::

-Be careful when cutting!
-use a woodsaw for straight, even cuts
-measure twice, cut once!

Step 3: Assembly: Part 1

In this step you should file the door latch/firing mechanism so that it will let go of the string (less than 90 degrees on mount. First, use those handy 1" nails and hammer in the butt of the bow.(easy)

Next, nail the handle on (also easy)

drill and clamp the four coffee stirrers (or 3 in the middle) and use a drill bit smaller than your nail (obviously).

Now, cut and nail the firing mechanism block to the stage around 20cm away from butt or 5 cm from front.

screw in the door latch to the mount



Step 4: Assembly Part 2

In this step, you will add the most important part, the bamboo.

First, cut notches (carefully) into the ends of the bamboo


secondly,use the wire to wrap the bamboo together (prevents diffrences in spring).

now wrap the center with string to prevent slipping and make it easier to nail.

Finally roping:

-bend the bow firmly (so that the bamboo is strung around 6 cm from front.

-tie string to bamboo.

Now listen to the wonderful sproinging noise!

::NOTES::
-The bamboo should be strung with reef knot ties.

Step 5: Finishing Tips and Saftey

SAFTEY tips:

1. Never, Ever fire at any living thing!
2. when cocking bow, always aim at a target (downrange)
3.when loading bolt, aim carefully at target and load from side (don't put finger infront of bolt)
4. be careful with sharp tools and objects.


Bolts:

simply use pencils as i do, or you can buy some dollar dowling (pencil width) and follow thse steps:

-drill hole in tip

-push nail into hole after nipping-off head

-secure with woodglue

-cut notch into back end



tips:

tuning you bow is the ardest part, I had to re-string my bow until it fired properly.

Step 6: Fire!

heresimply push the door latch to fire! watch the vid on my youtube channel here

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    149 Comments

    No, actually it's called an "elbow catch".

    "This video is private"

    -- YouTube

    I doubt it,

    did you add a like a rail to the firing ditch

    Say, would 1/8th inch 3 strand twisted nylon cord work as the bow string? Cuz thats all that I have, so would it work better or worse?

    Well my Friends sister told about this site and she was right about how awesome it is haha

    I couldn't find peices of bamboo like that anywhere I looked around town. What exactly did you use and what were they called?

    4 replies

    im not sure but would i pvc pipe work

    i just used a piece of bamboo, if you are willing to pay extra, you can grab a tiki torch and cut off the torch part.

    i may have been confused on the thickness of the bamboo than. If at all possible do you think you could give me guestamate of the thickness and length? Thanks for the help :D

    i used rather thin bamboo (didnt last very long) that was an avg of 1.3 cm wide and around 1 m long

    i would recommend getting slightly thicker bamboo (1.5 cm) to avoid any tearing.

    when i built this originally, i used 2 bamboo sticks; just use 1 for better results.

    also (most importantly) don't leave it strung. it will tear and bend. mine has been unusable for years now due to my leaving it strung. (i even took archery back in a summer camp... why didnt i remember that golden rule =/)

    Since the crossbows of old had steel or metal bow bits (I don't know the proper term) is there any instructable that have metal bow on a wooden stock arrangment?

    6 replies

    by bow bits do you mean the limbs and the trigger?

    yeah, I probaly maen the limbs

    If youwant to use a car spring, iy's going to have to be de-tempered, rebent, and tempered again. I saw one made on TV. Meanwhile, try<br/><a rel="nofollow" href="http://blog.modernmechanix.com/2006/08/01/build-a-hunters-crossbow/?Qwd=./MechanixIllustrated/12-1953/crossbow&Qif=crossbow_0.jpg&Qiv=thumbs&Qis=XL#qdig">http://blog.modernmechanix.com/2006/08/01/build-a-hunters-crossbow/?Qwd=./MechanixIllustrated/12-1953/crossbow&amp;Qif=crossbow_0.jpg&Qiv=thumbs&Qis=XL#qdig</a><br/>

    I plan on making a proper X-bow with a car's leaf-spring for the bow part, but it'll have to wait until I'm less busy there aren't any instructibles I can think of, no.

    and when ur done that post it aswell please? :D