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April 24, 2009
News - October Caption Contest
about 2 years ago
Look! I don’t know what’s about to happen. Better safe than sorry.
News - July Caption Contest
about 3 years ago
You know, because he’s sitting on hay bales. Bad, I know.
News - According to Pete: Transi…
about 4 years ago
Ok, thanks for the update. I’m guessing you can’t have a vcc plane and a ground plane to handle the high current, then two other layers for communication.
Just curious, What happened with the Spectra Symbol contest. Are you guys still working on it, or was it a wash?
News - According to Pete: August…
about 5 years ago
I did some googling, and you’re right. according to this graph, http://www.montana.edu/gps/understd.html#Selective_Availability_(SA) , most of the error comes from the Ionosphere, wich is kindof duh on my part. :)
It almost sounds like you would have to take multiple readings from multiple devices of each satellite, average that out, then send that through the triangulation agriotherium while keeping in mind that the antennas are in different locations. Which is probably not possible with off the shelf hardware. With that being said, would averaging the altitude readings still help. Just guessing here, but the problem with reading altitude is that the satellites are farther away horizontally then vertically. Therefore timing would have to be even more precise. So two gps could help with this, especially if you could make the gps' on an even plane.
But, the gps' won’t be reporting the same reading. Gps is all about timing, precise timing. Since the clock in each gps receiver would wonder, each one will report a slightly different reading. Therefore, if you average out the readings, you would most likely be able to remove some of the noise generated by the varying clock speeds.
I was thinking, if you use two gps' and average out the two, would that increase accuracy? Also, what if you used a raspberry for the controller. Then you could dump all data onto a flash drive in whatever format you want. And you could use a lcd screen to view the data. Then again, it may be overcomplicating things.
News - Engineering Roundtable - …
about 5 years ago
Yea, grinder can be very noisy. Although, with my plasma cutter, if I use a piece of angle iron as a straight edge, it gives me a pretty straight cut; it is at least good enough for welding. Maybe the same technique would work with the oxy/acetylene torch.
You could also have ditch the oxy/acetylene altogether and just used the angle grinder with a cut off blade. Gives a nice cut that is all ready for welding. Thats how I make %90 of my cuts with plate steel and sheet metal. Although; it does take a bit longer, and it doesn’t have the added bonus of playing with fire. :)
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