Right, so I made a polaroid pinhole camera, I can get the exposures, and I can get them developed, well sorta.. I'm having a problem releasing the reagent after I expose it. I can get a partial develop, but then it goes wrong. I believe I'm either pressing too hard (I'm pulling it between a book and a counter-top right now), or pulling too slow, or maybe going at it all wrong. Obviously one easy solution would be to buy an old polaroid and take the mechanism at the end apart. Or just convert it into a pinhole. But alas, I'm a broke college student. I don't want to give up or lose faith on this project, any idea what I could do for a cheaper solution?