Penny Ballista

Oye! Oye! Brenda the articulated battle tardigrade has been released into the wilds of 3D printing! Join the Horde to be among the first humanoids to learn about the next epic project from Zheng Labs! We now return you to your regular model description. This nefarious device can easily launch a U.S. penny across a room when printed at 1:1 scale. It's the first upgrade many Seej players seek when they need a little more oomph than the Zheng3 Penny Catapult can provide. Seej is an open-source tabletop wargame based around 3D printing. Rules for Seej are at s33j.net Do you need this in your arsenal? Yes. Yes you do. Penny not included! Instructions http://zheng3.com/?p=361 Construction is really simple! Needlenose pliers are recommended, but not strictly necessary. You'll need two elastic bands to complete this ballista. Tie a single band through the bore on one of the two D-shaped locking keys. Repeat the process with the other locking key. Feed the end of one band through the rectangular bore on the ballista's left post. Insert the tenons of the locking key into the square mortises on the post to lock the band in place. You'll be tempted to repeat the process with the other side, but don't give in. It will save you precious minutes of frustration. Unlike the Zheng3 Penny Catapult, these locking keys should be a snug fit. If some settling of the plastic during printing has made the mortises too small, trim the tenons a bit with your blade of choice. Center the nock on the knot that connects the two rubber bands. Make sure that the penny's cradle is facing forward. Feed the end of the band that's been locked down through the rectangular bore on the nock. Tie the free end of the band to the second band. Now feed the free end of the second band through the outside of the rectangular bore on the right post and loop it through the second locking key. The nock has a wee nub on its underside. Slide this nub into the ballista's firing groove; it will improve accuracy. Load a