Tennis Ball Ballista Plans now for sale.

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

P1070709a

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.

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8 Responses to Tennis Ball Ballista Plans now for sale.

  1. pmofnz says:

    No, I am not driving 150km to rebuild the wall. You knocked it down, rebuild it yourself!

    Pic avail here of prototype on range.

  2. Murray says:

    This is what we have museum staff for.

    Finally found a use for them.

    Picture stolen and reposted. What are you gonna do, fire tennis balls at me?

  3. cha says:

    Great stuff Murray, any video of the beast in action?.

  4. Murray says:

    Not yet, I only just found some batteries for my camera.

  5. David says:

    Will it shoot golf balls?

    Our local gun range has some metal targets set up at about 100′. I think banging them with a golf ball would be much more sonically pleasing than hitting them with a tennis ball.

  6. Murray says:

    Yes it will, in fact I designed it for gold balls and adapted it too tennis balls. Its just a case of adjusting holes in the spreaders and the pouch size.

  7. […] This is a video of Joe and Anthonys first attempt at a twin torsion system using my tennis ball/golf ball ballista plan. (Yours for only $10 US and comes with full on line support – send me a picture and […]

  8. […] 21, 2009 This is a video of Joe and Anthonys first attempt at a twin torsion system using my tennis ball/golf ball ballista plan. (Yours for only $10 US and comes with full on line support – send me a picture and […]

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