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Author Comment Last activity Moderation
danbeavers "The cheapest flow meters in the appropriate range that I could find: $18.90 http://www.ebay.com/itm/0-1-1-5L-Oxygen-Air-Flow-Meter-Gas-Flow-Meter-..." | Read more » over 7 years ago
danbeavers "Mathew: The "super simple" flow meter you linked to is what DavidMack was describing in the first post comment. That is real good to calibrate a ..." | Read more » over 7 years ago
danbeavers "Warren: I don't have the complete setup here that Nick has been using. I have 1 unused and one used tube and the rest of the equipment shown in my..." | Read more » over 7 years ago
danbeavers "The iCal is broken here also. " | Read more » over 7 years ago
danbeavers "The iCal is incorrect " | Read more » over 7 years ago
danbeavers "Answering my own question: "The KITAGAWA air sampling pump reproducibly draws 100cc of sample air" So that would be 90 pump cycles thus makiing i..." | Read more » over 7 years ago
danbeavers "Mathew: Perhaps I am not understanding some objectives here. Is the idea to be able to use one of our measurements in court? I doubt that that i..." | Read more » over 7 years ago
danbeavers "Mathew: Why would you doubt the accuracy of a stepped bore? A reamer will provide very accurate hole size and ball bearings have very accurate di..." | Read more » over 7 years ago
danbeavers "Another approach to this problem would be essentially what Drager does. We could construct a manual vacuum pump. It would essentially be like a b..." | Read more » over 7 years ago
danbeavers "Thanks Nate for posting my thoughts. I wanted to comment on Mathew's idea of calibrating the pump before shipment. I assume what is meant is that..." | Read more » over 7 years ago
danbeavers "I did not think about measuring the AC duty cycle. I think the most influential observation was the front door being open 8 to 10 inches. By the ..." | Read more » over 7 years ago
danbeavers "Oh, I was making assumptions. I had not seen a pump that was set up to have 2 different attach points. So never mind about my comment! " | Read more » over 7 years ago
danbeavers "On reversing the aquarium pump: Be sure and reverse both diaphragms! " | Read more » over 7 years ago
danbeavers "Here is my contribution about how I got started with PublicLab: http://youtu.be/mIS1TbFraqU And here is a very memorable incident with PublicLab:..." | Read more » over 7 years ago
danbeavers "Not certain but perhaps. " | Read more » over 7 years ago
danbeavers "I will be attending! " | Read more » over 7 years ago
danbeavers "That is really an interesting idea to measure water height with capacitance and a 555! " | Read more » almost 8 years ago
danbeavers "The colors are fantastic! " | Read more » almost 8 years ago
danbeavers "I just now found you note. Sounds like you had a good time. Thanks for coming out. " | Read more » about 8 years ago
danbeavers "I will be attending! " | Read more » about 8 years ago
danbeavers "I will be attending! " | Read more » about 8 years ago
danbeavers "Nicholas - There are a lot of how-to instructions on etching circuit boards on the Internet if that is what you want to know. I plan on documentin..." | Read more » about 8 years ago
danbeavers "Good presentation. I saw a couple of quick flips between Jeff and the slide that could have been on my end or not. " | Read more » about 8 years ago
danbeavers "I may be really off base here so play nice if I am. What sort of literature search has occurred regarding peak detection? I did a search and imme..." | Read more » over 8 years ago