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'[EE]: Electronic gyros Fw: [AR] Gyro Hunters'
2002\11\18@062714 by Russell McMahon

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Claimed to be useful gyro building blocks (see discussion below)
       http://www.spp.co.jp/sssj/sirikon-e.html

Certainly look "fun" for experimental use.

But also see John Carmack's comments at end - and he has hands on practical experience (including manned rocket only supported flight, *so far* for less time than the Wright Brothers first flight).
           RM

_____________________


----- Original Message ----- From: Scott Bowers To: spam_OUTAROCKETTakeThisOuTspamHOME.EASE.LSOFT.COM Sent: Sunday, November 17, 2002 2:45 PM
Subject: Re: [AR] Gyro Hunters


I am not really the electronics guru. I have a friend in the aerospace industry who pointed them out to me. The price was approx. 37.00 dollars each, and you need three. John made a gyro unit for his rc helicopter. He designed the board and firmware himself. He put the thing upside down and locks it in and it stays there, pretty impressive.
He will eventually be manufacturing some. He said they have a sample rate of about 90 times per second, and should be fast enough with the right servos to steer a rocket.

We worked out an idea for X, Y, and rotational axis control using only two servos and a link similar to what they use in tailless planes.

Been one of my goals to do this, may actually get around to it someday.

Scott
 ----- Original Message -----   From: Brian Feeney   To: Scott Bowers ; .....AROCKETKILLspamspam@spam@HOME.EASE.LSOFT.COM   Sent: Saturday, November 16, 2002 5:20 PM
 Subject: RE: [AR] Gyro Hunters


 In a write up on their site they compare the different technologies employed in gyros. They claim to have solved the problem of external vibration normally causing the Vibration style to be ineffective. Have you flown this and or know of its use on rockets aka was it really effective in the context of the vibration from the rocket. How much were you paying for them?   Cheers,
 Brian
 The da Vinci Project

 bfeeneyspamKILLspamdavinciproject.com
 http://www.davinciproject.com
   {Original Message removed}

2002\11\18@094833 by rad0

picon face
where can I get one?




----- Original Message -----
From: "Russell McMahon" <.....apptechKILLspamspam.....PARADISE.NET.NZ>
To: <EraseMEPICLISTspam_OUTspamTakeThisOuTMITVMA.MIT.EDU>
Sent: Monday, November 18, 2002 5:18 AM
Subject: [EE]: Electronic gyros Fw: [AR] Gyro Hunters


Claimed to be useful gyro building blocks (see discussion below)

       http://www.spp.co.jp/sssj/sirikon-e.html

Certainly look "fun" for experimental use.

But also see John Carmack's comments at end - and he has hands on practical
experience (including manned rocket only supported flight, *so far* for less
time than the Wright Brothers first flight).

           RM

_____________________


----- Original Message -----
From: Scott Bowers
To: AROCKETspamspam_OUTHOME.EASE.LSOFT.COM
Sent: Sunday, November 17, 2002 2:45 PM
Subject: Re: [AR] Gyro Hunters


I am not really the electronics guru. I have a friend in the aerospace
industry who pointed them out to me. The price was approx. 37.00 dollars
each, and you need three. John made a gyro unit for his rc helicopter. He
designed the board and firmware himself. He put the thing upside down and
locks it in and it stays there, pretty impressive.

He will eventually be manufacturing some. He said they have a sample rate of
about 90 times per second, and should be fast enough with the right servos
to steer a rocket.

We worked out an idea for X, Y, and rotational axis control using only two
servos and a link similar to what they use in tailless planes.

Been one of my goals to do this, may actually get around to it someday.

Scott
 ----- Original Message -----
 From: Brian Feeney
 To: Scott Bowers ; @spam@AROCKETKILLspamspamHOME.EASE.LSOFT.COM
 Sent: Saturday, November 16, 2002 5:20 PM
 Subject: RE: [AR] Gyro Hunters


 In a write up on their site they compare the different technologies
employed in gyros. They claim to have solved the problem of external
vibration normally causing the Vibration style to be ineffective. Have you
flown this and or know of its use on rockets aka was it really effective in
the context of the vibration from the rocket. How much were you paying for
them?
 Cheers,
 Brian
 The da Vinci Project

 KILLspambfeeneyKILLspamspamdavinciproject.com
 http://www.davinciproject.com

   {Original Message removed}

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