Quadrocopter Build - Part 12 - Thrust testing

I have built a bit of a collection of propellers and I have wanted to build a thrust test rig for a while. This video helped guide me in the right direction:
Flite Test : Measuring Thrust - FLITE TIP
http://www.youtube.com/watch?v=uxTq3rNDc5g

There are many threads on RCGroups.com and many other RC sites on how to test props. Some I liked, some I did not. I took the parts I had available to me and built this thing.

I built a thrust tester and tested the props I have with one of my XXD A2208 1200KV motors. I used a Hobbywing Skywalker 20A and a Turnigy 2200mAh 3S 40C LiPo. The results were:
8x4.5x2 - 1 lb 7.6 oz (669 grams) of thrust
8x4x3 - 1 lb 3.8 oz (561 grams) of thrust
9x5x3 - 1 lb 11.8 oz (788 grams) of thrust
10x6x3 - 2 lb 3.7 oz (1012 grams) of thrust


Here are more pictures of the rig. I also have videos is anyone is interested.

I am interested to see what would happen if I put the 10x6x3 props on the quadcopter. I had thought that the motors would be too fast for these props to catch the correct amount of air for the about of tilt and surface area of the props. However this test seems to imply that they would actually do fairly well. Could be a good test if I get the time.

Also, my X525 quadcopter is for sale to free up cash for the new carbon fiber quad that I have started.



Kijiji post:
http://kitchener.kijiji.ca/c-buy-and-sell-hobbies-crafts-X525-Quadcopter-W0QQAdIdZ382623941

Quadrocopter Build - Part 11 - Progress on new frame

Hello,
Here is an update on the new frame I am working on. I have been looking for a place to cut it and I have had a few interesting options.
1. Someone an hour and a half away offered to cut it for me once he fixes his CNC machine.
2. Get a local shop to cut it (looking like $100+).
3. Possibly get help from a local hack-lab where they have a CNC machine. However they have high membership fees and I don't know any members that could help me out. They do have an 'open house' every Tuesday. Maybe they would help me out. But carbon fiber could be rough one their bits and it is messy.
4. Cut it my self and make it ugly :P

Here is the latest frame design.

I still need to put in some locations to be cut out to save weight. I also need to build it out of cardboard and test fit everything. That's for another day...