Subject:
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Re: !!! Laser attachments for Mindstorms !!!
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 9 Oct 1999 06:40:03 GMT
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Original-From:
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Chris Osborn <fozztexx@fozztexx.SAYNOTOSPAMcom>
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Viewed:
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571 times
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One of the early things I did with my laser pen was rubberband one
of the 5 stud long "helicopter rotor" plates to the side of it. I
never got it balanced *perfectly*, but it was close.
I then stuck the axle from the older 9 volt technic motor straight
into the axle hole on the plate, and hooked the motor to my train
controller. Then I turned the laser on, and turned off all the
lights and started up the motor. It was neat cuz at the really low
speeds it would leave a slow trace, and when you turned it up, it
made a nice line all the way around the room.
The next thing I did was I mounted a mirror on the end of the motor
axle instead of the laser. I actually just broke an AOL CD to
get the mirror. AOL CDs make really good mirrors, and I was able
to file it down to about the size of a 2x2 plate.
One of the things I did though was to setup a method so I could
vary the angle of the mirror on the end of the motor *while* the
motor was spinning. I wanted to be able to aim the laser straight
towards the motor, and have it bounce off and make a cone. But I
needed to be able to adjust the diameter of the cone on the fly.
The whole idea was that somehow I would get this thing suspended
over the top of a Christmas tree, and use the laser to mark where
it needed to be trimmed. This has yet to happen however.
My parents grow Christmas trees in their backyard, but almost never
go out and shape them. And of course I thought a perfectly shaped
tree would be cool.
One of the neat things I found though was that if I bounced the
laser from an angle, I could get cool eliptical cones. Probably
even better for Christmas trees, you'd have flattish trees that
you could smash right up against the wall or window.
---
Chris Osborn FozzTexx Enterprises
707 226 7629 - Voice 2136 Coronado Ave.
707 581 1797 - Fax Napa, CA 94559
<fozztexx@fozztexx.com> <http://www.fozztexx.com/>
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Message has 2 Replies:
 | | Re: !!! Laser attachments for Mindstorms !!!
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| Okay. The adress for that OpteK Technology is www.optekinc.com . They have other sensors too, for magnetic and infared needs. Intresting place to go for position sensors. The products have possibilities. Andy (25 years ago, 9-Oct-99, to lugnet.robotics)
| | | Re: !!! Laser attachments for Mindstorms !!!
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| In lugnet.robotics, lego-robotics@crynwr.com (Chris Osborn) writes: <...snip> (...) This is the best use I've heard of yet for an AOL CD! (...) And if you use one of those nifty, high-powered, rock-vaporizing lasers, you won't even need to bring (...) (25 years ago, 9-Oct-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: !!! Laser attachments for Mindstorms !!!
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| (...) I was actually working on something like this using one of those cheap little $8 laser pointers. The idea is to use a pair of mirrors that can be rotated to specific angular locations to build an X-Y Laser Plotter. One mirror rotates (...) (25 years ago, 9-Oct-99, to lugnet.robotics)
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