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.
-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:
-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)
-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)
::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.
-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.
-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!
-The bamboo should be strung with reef knot ties.
Step 5: Finishing Tips and Saftey
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.
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
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