RCX programmable brick : 105


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Subject:	RCX Controlled Air Compressor Tester
Newsgroups:	lugnet.robotics, lugnet.build, lugnet.robotics.rcx
Date:	Tue, 28 Sep 1999 01:12:23 GMT
Viewed:	796 times

Hi, all pneumatics fans, For some time I've been trying to figure out how to objectively compare the performance of the various air compressor designs especially the ones using the large pneumatic hand pump which seem to be coming into fashion lately. After much thought and several failed attempts, I've come up with an RCX Controlled Air Compressor Tester. The details and test results on a number of the commonly air compressor designs are presented at: http://web.singnet.com.sg/~cssoh/actest.htm I believe there is need for a re-think on air compressor designs. Your friendly critique and comments are most welcome. -- C S Soh http://web.singnet.com.sg/~cssoh ... where air is power

Message has 7 Replies:

		Re: RCX Controlled Air Compressor Tester
Wow. Did you do that for a paper or thesis? Very worthy research with a surprising outcome. I am sure most of us would surmise that the big sprung cylinder would give more efficacious designs because the displacement would be larger. This site (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx, lugnet.technic)

		Re: RCX Controlled Air Compressor Tester
Thanks for the great comparison between compressors! I have been wondering which one was actually the best. Now to make a better one! One question though, what is the set number for the Advanced Pneumatics Set? Great Work! John Matthews C S Soh (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)

		Re: RCX Controlled Air Compressor Tester
Nice work! For a while it looks that you could travel back in time using this recording device, before you realize that the pen draws an arc when the paper doesn't move ;-). Could it be possible to add a rotational sensor and datalog the time and (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)

		Re: RCX Controlled Air Compressor Tester
A Lego testing machine for Lego compressors... wow, one of the coolest Lego things ever seen around! I love the idea and love your implementation, and find your results very useful. BTW, I think that the Ralph Hempel's double-action compressor (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)

		Re: RCX Controlled Air Compressor Tester
(...) You might want to use a sliding mechanism on the pen to eliminate the arc that it draws. It will skew the measurement (no longer quite linear scale) but not so badly that it will be useless. Straightening the lines out will help make the (...) (25 years ago, 28-Sep-99, to lugnet.robotics)

		Re: RCX Controlled Air Compressor Tester
(...) Hi Chio Thats a pretty interesting design. Nice work! (URL) Here is a link to some pictures of the two stage compressor I built. Hopefully there are enough details shown to reconstruct it but if you have any questions let me know. The actual (...) (25 years ago, 29-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)

		Re: RCX Controlled Air Compressor Tester
(...) I wonder how this compressor stacks up to the others that were reviewed. C S Soh? Joel Shafer joel@connect.net (25 years ago, 29-Sep-99, to lugnet.robotics)

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