wessonsmith
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New cardboard #8 power detonator video
https://youtu.be/6P4yiN_A-o4
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Gargamel
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Test vs. Witness plate?
I know NHN is supposed to be safe, but I still don't like that view of holding the device in your fingers while pressing...
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wessonsmith
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Quote: Originally posted by Gargamel  | Test vs. Witness plate?
I know NHN is supposed to be safe, but I still don't like that view of holding the device in your fingers while pressing...
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NHN isn't going to be set off by pressing a wooden dowel down in a paper cartridge. Nowhere near enough friction energy, not even close. If you are
using anything other than NHN as a primary, no matter how safe you think your being, you are not safe enough. XeonTheMGPony is the only person on this
board that I have seen that uses sensitive primaries like Lead Azide and has the elaborate equipment setup to safely use them. I did put a disclaimer
on the video stating that the method I was using isn't safe for any other primary.
[Edited on 19-2-2020 by wessonsmith]
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Gargamel
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| Quote: | | NHN isn't going to be set off by pressing a wooden dowel down in a paper cartridge. Nowhere near enough friction energy, not even close
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I know. But the feeling about it is not good anyway 
Still I'd be curious if this only creates a firecracker or actually goes high order.
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wessonsmith
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| Quote: Originally posted by Gargamel | | Quote: | | NHN isn't going to be set off by pressing a wooden dowel down in a paper cartridge. Nowhere near enough friction energy, not even close
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I know. But the feeling about it is not good anyway
Still I'd be curious if this only creates a firecracker or actually goes high order. |
This video should answer that question. And oh yes, it's one hell of a LOUD firecracker as well!
https://youtu.be/BzCQxxl_dw0
FYI, I removed the hot glue bottom for the test because it creates a 4mm standoff distance for the secondary charge in the detonator. With a 4mm
standoff, the detonator won't damage the witness plate. For initiating plastic, the 4mm bottom doesn't matter.
I removed that standoff distance by cutting off that 4mm at the bottom. I wanted to show just how powerful these detonators are.
[Edited on 19-2-2020 by wessonsmith]
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Gargamel
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Thanks for sharing.
I was under the impression that NHN needs strong confinement, that's why I tossed the idea of using it some time ago. So obviously that's not always
true...
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wessonsmith
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| Quote: Originally posted by Gargamel | Thanks for sharing.
I was under the impression that NHN needs strong confinement, that's why I tossed the idea of using it some time ago. So obviously that's not always
true... |
I think that idea got started because it wasn't being properly made. I have plenty of video evidence that shows that a cardboard tube is all you need
to go high-order on a powdered secondary like PETN or ETN.
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