Canadian Truckers "Freedom Convoy"

[donquixote99]

Originally Posted by Ol' Ken

How it all started..

Good one!

[nailer]

Originally Posted by BigElCat

It's an intriguing concept, but I can't picture it mentally.

I'd need to see some kind of pictorial or video demonstration.

I think an origami caltrop has potential. Sold as parts with instructions, manufacturing a shipping cost will be minimal. They can be built as a fun family bonding activity. Up-selling fancy looking paper should be highly profitable.

[BigElCat]

Originally Posted by donquixote99

Good one!

It's like trying to explain why there can be no Independent Trucker's Union.

Even attempting to explain is impinging their freedom.

[donquixote99]

Originally Posted by BigElCat

It's an intriguing concept, but I can't picture it mentally.

I'd need to see some kind of pictorial or video demonstration.

Here you go.
(Note, for some reason, when I upload these they rotate. Turn them back 90 degrees clockwise)

[mpholland]

Originally Posted by BigElCat

Your "bend" is actually called a 'brake'. The tool that makes the brake is also called a brake.

I get the feeling you haven't stuck a 1" sheet metal square into a brake diagonally.

And then you'd have one half of a Caltrop that would require a jig to weld to the other half.

I use a brake every day. I fail to see a problem forming a 1" square diagonally. I do much more difficult things on a daily basis. However. if the purpose is to puncture tires I would use a bigger square. The only way they will be very effective is if they have a flat side down. The sin of a 45 degree angle with a 1" side would give .707", which would be just over 5/8" max to puncture with 16ga metal. I would think you would want at least a 1" tall point which would require a 1.5" square, minimum.

[mpholland]

Originally Posted by donquixote99

Here you go.
(Note, for some reason, when I upload these they rotate. Turn them back 90 degrees clockwise)

That would be the worst position for them to fall. A tire would make them try to rotate, forcing an attempted flattening of the sheet metal by trying to force the brake out.

[BigElCat]

Originally Posted by mpholland

I use a brake every day. I fail to see a problem forming a 1" square diagonally. I do much more difficult things on a daily basis. However. if the purpose is to puncture tires I would use a bigger square. The only way they will be very effective is if they have a flat side down. The sin of a 45 degree angle with a 1" side would give .707", which would be just over 5/8" max to puncture with 16ga metal. I would think you would want at least a 1" tall point which would require a 1.5" square, minimum.

Forget the 1".

Grab a piece of paper, fold it into a square. Fold the square diagonally at 90 degrees. The result is nothing like a caltrop.

You get one triangle at 90 degrees from another triangle. It's an unstable thing that will roll over if a tire runs over it. It could land with the single point facing any direction, but not straight up. If it lands with a point facing straight up, the tire will crush it flat.

(edit---I could not see any of the three posts above when I made this post).

[RickeyM]

Can't we just bust a bunch of glass bottles in the street?

[BigElCat]

Originally Posted by RickeyM

Can't we just bust a bunch of glass bottles in the street?

You'd have to go back and make sure the bases are sitting flat after the bottle breaks.

Even then, glass is not as effective as a steel caltrop.

What the CIA does...oops.

[donquixote99]

OK, spent a little time checking out the state of the art in tire-puncturing things.

Here's a design that uses flat sheet metal--two identical parts make a sort-of classic caltrop shape. Some assembly required. Caltrops on Amazon

Cops use spike strips. Car and Driver tested some.