No pics to update with this time.. didn't get as much done this past weekend as I had hoped for. It's been miserably hot all week, so I haven't spent much time in the garage working on it. So far, I have cut 5 gallon buckets to use the plastic to make funnels.. quite the interesting endeavour figuring out how to make a funnel from a flat peice of poster board, then transfer it back onto a round 5 gal bucket.. ended up being a lot of trial and error, but eventually came out. Each 5gal bucket ends up having enough material to make a little more than half of each funnel.. but i am cutting them a bit longer than i need to make sure I have enough.. I got my 5gal buckets for $1.50 each, so the material isn't a significant cost.
I'll be using the funnels upside down on the rotors to eliminate windage losses (keeping it from turning into a huge fan hah). Once I get the funnels cut and attached, I'll be finishing the shroud with a top and bottom.
Other changes in the design include flipping the barrel upside down (I don't have a lid for it), cutting a third access door, and installing three additional braces, so that I have a bearing and 2x4 brace between each rotor. This should help deal with the runout issues I was having with the threaded rod, and hopefully I will be able to raise RPM significantly higher.
That's all for now.. I see a lot of views on the thread, not too many comments. Let me know what you guys think! If you have any ideas that might be helpful please chime in.. this is my first time building a centrifuge so it's definitely a learning process.
Also, if I don't get back on here before the weekend, Happy Father's Day to all you dads out there! (I don't have kids)
I have all three rotors built and balanced to within 0.005oz! That should be much better than the 0.1oz I had with the swinging bucket rotor design.