It's not pretty. But here is progress so far on my Peltier cooling cap.
Liberal use of duct tape is due to the plastic cracking while being drilled. If the concept works, I may use the old plexiglass as a pattern to make one from lexan.
The peltier unit is mostly hidden under the heat sink, which is bolted to the plexiglass with nylon screws. I'm hoping they do not soften overmuch due to heat.
Hanging the external fans from bungees is not aimed at vibration control as I don't expect to image with the peltiers running anyway. I originally planned to bolt the fans, heat sinks, and peltiers in place with one set of long nylon screws and so sized the heat sinks for the fans. This went awry when I couldn't find nylon screws long enough. I'll try to post a pic when complete to show the whole gizmo with much smaller internal fan on standoffs.
As I said earlier, if this works it should prove that almost anyone can build a Peltier cooler.
-------------------- Jim Fisher
If you're not part of the solution, you're part of the precipitate.
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If the concept works, I may use the old plexiglass as a pattern to make one from lexan. 
