Reply To: Lowering the Cost

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I bought 2 pi in the form of Kano Computing kits for my kids. The experience was underwhelming for them. Compared to ipods and laptops etc. it just didn’t grab their attention. Lag was a big part of that. (*I* thought they were cool, but my first computer cost $7k, took 3 years to pay off, and at 50Mhz was full order of magnitude and then some slower.)

Anyway, back to topic: what’s this about fresnel projectors?

Doesn’t take long to find some interesting starting points. Anyone here actually build or use one? (mount LCD under old style overhead projector) (put display inside cardboard box, pointed at fresnel lens)

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