Making Bulletproof Wood [video] • Hacker News Board

Re: Making Bulletproof Wood [video]

#41

Post by sumtechguy » Thu, Nov 02, 2023, 2:18 PM UTC

langsoul-com wrote: post #37

A_D_E_P_T wrote: post #23

I hate to rain on his parade, but as a bulletproof material that stuff is effectively worthless. An equal density of plain transparent polycarbonate has substantially more ballistic resistance, and is far easier to make and mold to shape. The same can be said for equal densities of steel, aluminum, magnesium, titanium, etc. However... As a material for musical instrument construction, that hyper-densified wood might…

It was never about practicality, it's more about the interest and whether it can be done. Otherwise just go buy a normal bulletproof vest and be done

exactly. this is the same guy who bought lab grade reference materials to make a cookie. Think that cookie cost thousands. Where as you can follow the recipe off the back of a bag of chocolate chips and get a better cookie for cheaper. He knows it. He is just playing around with fun things.

Re: Making Bulletproof Wood [video]

#42

Post by mcpackieh » Thu, Nov 02, 2023, 2:21 PM UTC

gambiting wrote: post #40

mcpackieh wrote: post #31

Earlier quoted context omitted.

What are anybody in this thread on about with 45 centimeters? He stopped a 9mm with about four cenitmeters. Skip to 53:00

You are literally replying to a comment thread where OP said [about plywood] "While not suitable as personal armor due to thickness (generally around 1.5ft/45cm)" Did you skip that entire part of the conversation and just went to the final comment in the tree?

Spacebacon said:

> From my experience shooting plywood, the 9mm would have no problem going through the same thickness. He is legitimately on to something with his process.

He's obviously talking about nilered's result. I have no idea what you people are on about with 45cm, 45cm of anything besides styrofoam will stop a bullet.

Re: Making Bulletproof Wood [video]

#43

Post by mcpackieh » Thu, Nov 02, 2023, 2:23 PM UTC

spacebacon wrote: post #8

intpx wrote: post #3

Earlier quoted context omitted.

my back of the napkin math only puts this around the same stopping power as plywood of similar thickness. Sand bags work a lot better and are a hell of a lot easier and cheaper to produce

From my experience shooting plywood, the 9mm would have no problem going through the same thickness. He is legitimately on to something with his process.

When you say "his process", you're talking about nilered's process right?

Re: Making Bulletproof Wood [video]

#44

Post by csours » Thu, Nov 02, 2023, 2:25 PM UTC

mondocat wrote: post #36

It seems there was a conflation of two expectations. The first being a material so hard that bullets just bounced off of it. The second being a material so effective at dispersing energy that bullets could not penetrate it. Kevlar is the well known example of the second category. In the end, the compressed wood seemed to improve a little in both categories, but not much. For reference from the video the same bullet t…

I was disappointed that the 7 untreated boards were not glued together.

Re: Making Bulletproof Wood [video]

#45

Post by moolcool » Thu, Nov 02, 2023, 2:26 PM UTC

blamazon wrote: post #26

Regarding the interior of the wood not being soaked by the stuff when it was cut open. (35:32) I suspect moisture content of the wood is a factor. A similar challenge is faced when cooking French toast, with particularly thick slices of bread. When making French toast, you want the custard to fully soak the bread, but a similar effect occurs if you use moist bread, where the middle is not soaked as well as the outsid…

I wonder if soaking it in a vacuum pot would help, similar to how a lot of epoxy craft people do it.

Re: Making Bulletproof Wood [video]

#46

Post by jeffbee » Thu, Nov 02, 2023, 2:28 PM UTC

I guess if your goal is to bloat up a video until it's an hour long, then you have to add a segment about how to open a crate. Then literally show a video of reagents dissolving.

Re: Making Bulletproof Wood [video]

#47

Post by a2tech » Thu, Nov 02, 2023, 2:32 PM UTC

h2odragon wrote: post #20

"Computer Shopper" magazines made for great backstops when zeroing scopes in a .22lr rifle. I suspect layering paper with a squishy resin in multiple layers would be very effective armor. Is paper close enough to call it "from wood"?

My grandfather was a gun smith and he hated going outside in the winter to test out guns so he had a thick stack of old phone books in his basement outside his gun room and he'd fire into them semi regularly while building/repairing guns.

Those phone books would easily stop even semi 'serious' rounds.

Re: Making Bulletproof Wood [video]

#48

Post by nabla9 » Thu, Nov 02, 2023, 2:47 PM UTC

What is missing is comparing against other types of wood of same weight, some wood floor laminates, or the same food without treatment for example.

It looks like the wood after treatment is not much better than the same weight of plywood.

Testing Penetration With 30 Layers of Wood: 9mm vs. .357 Sig vs. .45ACP https://www.youtube.com/watch?v=j4EeZUPDaNc

How much wood will a 9mm bullet go through? https://www.youtube.com/watch?v=9A6ZLDEooEk (full metal jacket 9mm 115 grain is not going trough 4 inch plywood).

how many 2X4s does it take to stop a bullet? https://www.youtube.com/watch?v=1-rTvzHQa1Q (answer 4)

Re: Making Bulletproof Wood [video]

#49

Post by tanvach » Thu, Nov 02, 2023, 2:50 PM UTC

nabla9 wrote: post #48

What is missing is comparing against other types of wood of same weight, some wood floor laminates, or the same food without treatment for example. It looks like the wood after treatment is not much better than the same weight of plywood. Testing Penetration With 30 Layers of Wood: 9mm vs. .357 Sig vs. .45ACP https://www.youtube.com/watch?v=j4EeZUPDaNc How much wood will a 9mm bullet go through? https://www.youtube.c…

He did the comparison at the end of the video no?

Re: Making Bulletproof Wood [video]

#50

Post by [deleted] » Thu, Nov 02, 2023, 2:57 PM UTC

tanvach wrote: post #49

nabla9 wrote: post #48

What is missing is comparing against other types of wood of same weight, some wood floor laminates, or the same food without treatment for example. It looks like the wood after treatment is not much better than the same weight of plywood. Testing Penetration With 30 Layers of Wood: 9mm vs. .357 Sig vs. .45ACP https://www.youtube.com/watch?v=j4EeZUPDaNc How much wood will a 9mm bullet go through? https://www.youtube.c…

He did the comparison at the end of the video no?

[deleted]