diy
diy


Author Comment Last activity Moderation
warren "Ah, i see you've already approached this topic, sorry to repeat! " | Read more » about 8 years ago
iamkat "Ah that's really helpful to know, thank you! " | Read more » about 8 years ago
cfastie "Thanks for the details. After you use a CFL to calibrate the spectrometer, replace the CFL with another light source. If the spectrometer is not d..." | Read more » about 8 years ago
iamkat "Hi Chris, what do you mean by a standard lycopene extraction? The UV spec of lycopene in ether can be found here http://link.springer.com/article/..." | Read more » about 8 years ago
cfastie "Kat, Do you have a standard lycopene extraction? How do know what the spectrum of lycopene should look like? Are you using a fluorescent lamp to ..." | Read more » about 8 years ago
mathew "I think there are a couple ways to read the straw-on-keel construction detail, I'm not sure either of us got it right the first time. i covered the..." | over 8 years ago
ecta64 "I did decide to retrofit the keel spars onto my horned Allison kite. I'm now curious to see what performance advantages it might have over one with..." | over 8 years ago
ecta64 "That looks fantastic!!!!!! Awesome job! This design can get pretty up there in terms of flying angle. Due to some oversight I left out the keel spa..." | over 8 years ago
mathew " I made and flew a horned allison today! it has a good flying angle, 55+ degrees and very stable. While it hunts for the wind and responds to cha..." | over 8 years ago
ecta64 "My experience has been quite good in gusty conditions so far. I added a design overview video where you can get a better look at the kite. It pulls..." | over 8 years ago
mathew "Excellent! I gotta try the scalloped one. Everywhere i fly here in portland is pretty gusty, and I have the same issue with tails getting stuck d..." | over 8 years ago
ecta64 "I'm likely going to be doing just that. I also got a suction cup window thermometer so now I can get data on wind velocity/direction and temperatur..." | almost 9 years ago
mathew "Neither an anemometer nor a rain gauge require power. Placing a camera indoors and pointed at such a setup through a window would be a pretty reas..." | almost 9 years ago
ecta64 "Glad to hear that people like this simple rig. It seems you get what you pay for with sensors and that frustration has led me to things like this t..." | almost 9 years ago
wjw "This is a great idea! Simple concept with lots of options for data acquisition and logging I think. I purchased a three sensor weather station fo..." | almost 9 years ago
ecta64 "Thanks. I gotta work out a few improvements but it does seem to function quite well and gives rather accurate data. I may mount it on the Public La..." | almost 9 years ago
mathew "I love this! " | almost 9 years ago
khufkens "On the raspberry pi camera there is no real focus, so you either unscrew the lens assembly (google macro lens / macro photography and raspberry pi ..." | Read more » almost 9 years ago
cosettespafford "Can you let me know how you focused your camera? I just finished my spectrometer yesterday; I can take spectral images at this point, but they need..." | Read more » almost 9 years ago
gpenzo "Hallo Jose. It is indeed a ELP camera. I had one laying around here. jewelry spectroscope I bought form aliexpress. But you can find them anywhere..." | Read more » over 9 years ago
H3nkt "Hello @mathew, First of al thank you for writing. If you increase the flow pulses will be schorter. But the amplitude of the pulse should be the ..." | Read more » over 9 years ago
JoseBarreiros "Nice work!. That camera seems to be an ELP camera?. Could you share the files of the enclosure. I want to try your design with an Aptina AR0130 th..." | Read more » over 9 years ago
khufkens "There are three variables in this setup: 1) the light source's output, which needs to be characterized or idealized (you could use the sun as a re..." | Read more » over 9 years ago
warren "Uh, perhaps I am not fully understanding on my initial readthrough, but since we have a big need to characterize sensitivity in the webcams we use ..." | Read more » over 9 years ago