Posted 03 November 2014 - 09:45 pm
What about this idea, which is what I have inside my shed, which I shoot at from 40 yards away in my house! I find that shot on shot pellets soon penetrate 4 carpet tiles, so I did the following.
I have 6 off 600x600 carpet tiles. I have printed targets on standard printer paper. You could fit 6 paper targets on the carpet face, but if instead of just sticking multiple targets to the carpet face, you arrange a system where the paper target Is held in a stationary holding frame and the carpet tiles are made to move horizontally 400 mm and vertically 300 mm, then wherever the carpet tile holder is within the 300 x400 movement It will still be fully behind the paper target. Two separate 12 volt motors make the tiles move left and then right an at the same time, up and then down The horizontal and vertical movement have limit switches that control geared motors from car seat mechanisms, and each motor is run at a slightly different voltage so they do not go at the same speed, (otherwise the pellets would just draw a 45 degree line)Then, to make things even slower, there is a sound operated switch, and a timer circuit so each time a pellet hits the tiles, each motor runs for a fraction of a second and stops. This way the carpet tiles move in a random fashion about 5 mm after each shot, so even if you do pellet on pellet shots in the same place for several tins the shots hit a new bit of carpet every time, and draw out wiggly lines of holes all over the carpet a bit like those Spirograph things that draw patterns!
My seat motors are designed to drive [BANNED TEXT] threaded bar, but you could have strong thread pulling and lifting by having it wrap around a thin (3mm) bar instead, a bit like a clock pendulum that swings left to right and also goes up and down.
How's that for mad!!! I bet Tron is going to take one look at this and tell me to "f*^k off as well!