The plans for the tennis ballista have now been proved and the machine is operating beyond expectations, so now you can get the revised version along with a photo rich set of instructions for the bargin basement price of $10 (thats US for the moment untill someone works out that Obamabucks are being printed on an HP2000 in his office)
Just keep in mind that what you do with it if you don’t follow my instructions is your fault. And I mean that in a very real and legally binding sense. Contact me directly to make a purchase. 22adartillery AT gmail DOT com
I can’t tell you what the effective range is for this thing but we’ve reduced a wall made of wooden bricks inside 150 hits at about 60′-70′ on the indoor range at the museum.
In other plans related news Tinys plan has been downloaded for free over $2,000 times now. With not one paypal donation so its user pays from now on. Shameless capitalism at work.