View Single Post
Unread 02-14-2006, 02:23 PM   #58
bigben2k
Responsible for 2%
of all the posts here.
 
bigben2k's Avatar
 
Join Date: May 2002
Location: Texas, U.S.A.
Posts: 8,302
Default Re: Wind Tunnel Construction

I was afraid of the Helander prices. I'm going to buzz Jon. Taps are out, but the plugs are a common hardware store (Lowe's) item, albeit maybe not in all sizes.

http://www.electricmotorwarehouse.co...e_inverter.htm
I'm thinking variac with the 1/2 HP 120v motor; think it'll work? I need a cheaper option than $150. Even a belt or chain drive with stepped wheel would be cheaper than that converter.

Keeping my fingers crossed on the blower; am being outbid. Hopefully the seller has more (been listing them for a while now).

Good find on the concrete former; local? Can we split one, or is 6' too short? Darn, it's a bit short... Really need 7 feet, at 32".

I could make bulkheads from commonly available plexiglass sheets, cutting and stacking multiple parts. A bit tricky, but cheapest of all. Thinking fiberglass & resin to seal the bulkhead to the tube. I'd have no problem using JB Weld on alu (the stuff is available in larger quantities).

I believe that standard/common screens are of the 75 or 67% opening, variety. Again, cheaper to stack them, and combine an egg crate. i.e. 2 stacked before the egg crate, then 3 stacked after. (duplicated on both sides of the nozzle wall). Any thoughts?


Am planning a stop for the phenolic this week, and possibly some surplus shops for the egg crate, time permitting. I believe that CDscrapmetal is closer to you.


Got a new toy: http://tasktoy.com
bigben2k is offline   Reply With Quote