Great solution.
BTW, I don't suggest you guys choose PVC pipes because heat stabilization of PVC is not good, and PVC may degrade as temperature is higher than 60 degrees. Furthermore, PVC will soften when temperature is higher than 80 degrees.
So I suggest you to use PE or PP pipes, and I think it's easy to get small PPR pipes for hot and cold water from some building material stores.
Actually, I am using a modified DN250 (wall thickness about 23 mm) PE pipe segment(Orange gas pipe) to hold my blades. I will have a try to build a PPR system like Phil21.
Thanks! I just checked PVC pipe temp rating, and it looks like they are rated at 160 to 180 degree continuous use. Melting temp (and I assume fire risk) is around 360. Degrees in fahrenheit.
I think you'd likely be fine with these temp ranges from what I've seen, but if you can find better materials for cheap it can't hurt. I've been using similar PVC frames for my GPU boxes for the last 2 years, and they've held up well under hotter temps than these.
I got some 120mm cheapo fans from Microcenter I'll try out tomorrow strapped to the "fan rail". They are not particularly powerful, 50cfm or so - but a quick test with one seems like they'll provide decent cooling. If it works as proof of concept I'll then order some Delta ~150cfm fans since I won't care about noise where this is located
If noise is a concern I would design in a fan rail on both sides to push/pull air through with slower, but quieter fans.
Still can't find my IR probe, was hoping to report temps here but I guess that will have to wait.