I enjoyed this build on Ben's show. I think its still possible without the laser cutter, but probably not without a 3D printer. I'm due for one, just waiting for the larger simple metal Printrbot to come down a bit in price, or my saving to go up enough to meet it without dipping into my pinball pockets.
I think you could make a pretty simple pop bumper by printing an inverted cone with a ridge on top, it just needs to pull down and push the ball randomly and reset quickly, that could be done with a spring.
Quoted from lpeters82:
I think it's an interesting project, but after watching the final I'm just not sure it looks like all that much fun to flip.
I always figured it was more oriented as a building/learning experience. I think its useful as that, especially for those of us interested in pinball or wanting to grow other generations into both the pinball hobby and electronics.
However I can see that a portion of his audience probably sees it your way and maybe why it wasn't the hit we imagined.
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