Hello from Boynton Beach, FL

[Boyntonstu]

This video gets the most smiles:

[Jon]

Hi Boyntonstu - welcome to HomemadeTools.net


Alright, I'll admit you got a smile out of me on that video . How'd you build it?

[Boyntonstu]

Elevator by Stu Lieberman | Photobucket

[kbalch]

Hi Boyntonstu,

Welcome!

OK, that's a pretty neat home improvement. What else have you built around the house?

Ken

[Boyntonstu]

This is another fun project:

[DIYer]

Cool build, Boyntonstu! And still going strong after all these years huh? Welcome to the forums.

[PJs]

Welcome Boyntonstu. Liked your elevator. Do the wheels mark up the walls? Have been thinking on building one for a while but thought about using a pulley and counter weight system that could either be done by hand or with a small dc motor. The winch seems like a cheap and cheerful way to do it too.

However I got a bigger giggle out of the shot gun...too much fun but not enough physics. Thanks for Sharing! ~PJ

[Boyntonstu]

I attached a pair of 3 x 1/8 tacks painted black.

No more tire marks.

Not enough physics?

Perhaps that is why I retired as a research physicist?

[PJs]

Thanks about the tacks...cheap n' cheerful.

No reflection on your background and did check out your YT channel...fun inventive stuff! Newton's second law came to mind with how tight the vice was for somewhere between 8-11kpsi for a 12ga. shotgun shell depending on how much and what type of shot, powder charge, etc. to the mass of your gun as to what reaction force might be...so the vice/clamp could hold it. ~¿@ The other part was the firing pin didn't seem to be secured so I assumed it shot back into the PVC stock, unless there was some kind of stop in it. Just a giggle and glad no one was hurt.

Me...I'm an old geezer R&D electro/mechanical engineer...having fun in my little shop and here on the forum. ~PJ

[Boyntonstu]

There is a steel cap on the 101/4 nipple. The firing pin cannot penetrate the cap.

When you mentioned physics, my first thought was about barrel burst.

AAMOF This shotgun is far superior to store bought guns in burst safety.

Watch this video:

And then this

The 10" steel nipple receiver around the barrel acts as a burst safety.