Subject:
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Re: Compressors, Valves, and Other Wishes
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 4 Aug 1999 06:37:46 GMT
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Original-From:
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Ben Williamson <BENW@spamcakePOBOX.COM>
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Viewed:
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1319 times
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On Wed, 29 Sep 1999, Ian Sinclair wrote:
> The best solution I've seen is Linc's micro motor controlled valve at:
>
> Hmm, it seems to have moved again... now at:
>
> http://www.members.home.net/ourcreations/linc/linc02.html
>
> I have built this valve control, but find the action between the gear
> and worm gear less than ideal because of the stresses causes by the
> very stiff valves.
Agreed. I just built it too, and had problems with the micromotor
shutting off and refusing to start again, even in the other direction.
I also noticed that the center of the 24t gear isn't lined up with the
pivot point of the valve, which leads to the arm twisting a bit and moving
in a few big jerks. I guess my valves are a bit stiffer than Linc's!
So I modified the design a bit, and added a touch switch to sense the
center position. I also added a support on the end of the axle with the
24t gear, to make it a bit more solid. The result is a stud thicker than
Linc's design, so he still wins the "most compact" prize. :)
There are a bunch of photos of the new valve on my web page, including
building instructions. There is also a new rotor for the 8444 helicopter.
Hey, I quit my job on Monday so I've got time to burn, okay?
- Ben.
P.S. Linc, thanks for a cool design!
-------------------------------------------------------------------
Ben Williamson benw@pobox.com http://www.pobox.com/~benw/
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Message has 1 Reply:
 | | Re: Compressors, Valves, and Other Wishes
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| (...) Excellent Ben, I'll check those out... Off topic, but... Have you people seen the satire/black comedy American Beauty yet? I highly recommend it. Ben, perhaps Kevin Spacey's character inspired you to quit your job and lead a fuller life to (...) (25 years ago, 30-Sep-99, to lugnet.robotics)
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Message is in Reply To:
| | Compressors, Valves, and Other Wishes
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| (...) Yes, this is still a difficult problem. The best solution I've seen is Linc's micro motor controlled valve at: Hmm, it seems to have moved again... now at: (URL) have built this valve control, but find the action between the gear and worm gear (...) (25 years ago, 29-Sep-99, to lugnet.robotics, lugnet.build)
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