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  #11  
Old 04-21-2017, 09:53 PM
luke strawwalker's Avatar
luke strawwalker luke strawwalker is offline
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Quote:
Originally Posted by Doug Sams
<scots>
Hello, computer
</scots>

Doug

.


A keyboard... how QUAINT!!!

LOL OL J R
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  #12  
Old 04-21-2017, 11:46 PM
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mojo1986 mojo1986 is offline
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<When I watched him saw the motor in half with a table saw -- well, I cringed!>


Yeah, me too! I'm surprised he got away with it! Wonder if there was some kind of low friction coating on the blade..........
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  #13  
Old 04-22-2017, 08:56 PM
olDave olDave is offline
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Default What makes you think gluing half a motor to the glass

would make any difference?

My money is on the very high probability (IMHO) that the motor case delaminated from the propellant grain during the saw cut. Doomed from the very start.
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  #14  
Old 04-23-2017, 09:41 PM
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Quote:
Originally Posted by olDave
My money is on the very high probability (IMHO) that the motor case delaminated from the propellant grain during the saw cut. Doomed from the very start.


The "trick" I used to safely cut the motors was also intended to help keep the case and propellant bonded. Here's a photo that offers a clue to what I did:


But, I think you're correct. Even with the motor encased in a wood block, the propellant probably came lose from the tube when it was cut.

-- Roger
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  #15  
Old 04-23-2017, 09:46 PM
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Here's a video from my attempts:

https://www.youtube.com/watch?v=YiFGwZMYiF4

It's actually a composite of three videos plus a photo of the cutaway motor. I used a high-speed video of a Solar Igniter burning and parts of two "inside the motor" video attempts.

-- Roger
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  #16  
Old 04-23-2017, 09:51 PM
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Here's what the epoxied-to-lexan setup looked like after the fact:


-- Roger
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  #17  
Old 04-23-2017, 10:31 PM
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Jerry Irvine Jerry Irvine is offline
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Are we discussing this?
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