Subject:
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Re: Revamped webpages
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Newsgroups:
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lugnet.technic
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Date:
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Fri, 5 Jan 2001 07:30:02 GMT
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Viewed:
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809 times
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On Thu, 4 Jan 2001 18:50:37 GMT, Jennifer Clark
<jen@vulture.dmem.strath.ac.uk> wrote:
> You mention that the compressor for the bipedal walker was too weak to power
> the model properly, but I've managed to build some pretty serious
> compressors, albeit with several motors. The one for the excavator was
> powered by two old style 9V motors, and is capable of producing a pretty
> good flow of air which is powerful enough to blow the hoses off the
> cylinders if you set the pressure cutoff point too high. I've actually found
> that the old 9V motors are superior to the new 9V gear motors when it comes
> to compressors... I suspect they are actually more powerful in general cases
> too.
Hmm I'll have to try that out now that I've got my controlcenter. Your
compressor is one pump pr. motor? I've managed four pumps with one of
the new motors, but with significant loss of speed at high pressure
(and not quite as noisy as the ones you use in your videos:)) I'm
tinkering with a design that disables some of the pumps at high
pressure, wich should give a lot of air flow at low pressure, but the
possibility of a higher max. pressure. My first problem is to figure
out how to construct a swich or gear changer with hysteresis.
Kind regards
John Jensen
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Message has 1 Reply:
 | | Re: Revamped webpages
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| Ross, John: I've tinkered about with loads of variations on the compressor design, but my measurements are pretty subjective, certainly compared with the tests done by CSSoh on his pneumatic page. The first compressor I built was a modification from (...) (24 years ago, 5-Jan-01, to lugnet.technic)
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Message is in Reply To:
| | Re: Revamped webpages
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| (...) I really do like the miniature Supercar, and I know exactly what you mean when you say you can't figure out the workings since you built it a year ago... It was interesting to read the bit about printing out plans of a model to the right size (...) (24 years ago, 4-Jan-01, to lugnet.technic)
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