frensel lenes

[Mad Trapper]

You can do a lot with these salvaged from old TV that are getting hard to find.

Anybody here played with one? They say the good ones can almost weld metal with, certainly cook/heat stuff.

[StratBastard]

I saw a couple videos on them, and they can almost produce a laser beam if focused right. One guy had one set up in his back yard for cooking. A handy item to hang onto if you can find one.

[Jester-ND]

you can buy a 7x10 sheet lens online for under 4 bucks... don't need to find an old tv.

https://www.globalindustrial.com/p/900-239-magnifier-sheet-7-x-10-individually-wrapped-and-sealed?infoParam.campaignId=T9F&gclid=EAIaIQobChMI2cGbiLrn8AIVsW5vBB3Fwgm1EAQYCSAB EgKwxPD_BwE

[Mad Trapper]

you can buy a 7x10 sheet lens online for under 4 bucks... don't need to find an old tv.

https://www.globalindustrial.com/p/900-239-magnifier-sheet-7-x-10-individually-wrapped-and-sealed?infoParam.campaignId=T9F&gclid=EAIaIQobChMI2cGbiLrn8AIVsW5vBB3Fwgm1EAQYCSAB EgKwxPD_BwE

That won't compare to a large one from a TV.


https://www.youtube.com/watch?v=ynUA8dY1btU

[Mad Trapper]

https://www.youtube.com/watch?v=XFw7U7V1Hok

[Kusa]

You could probably get a good tan underneath one of these.

[Jester-ND]

That won't compare to a large one from a TV.


https://www.youtube.com/watch?v=ynUA8dY1btU

I know... but finding $3 is easier than finding an old tv....

[Jester-ND]

spend $12 and focus 4 beams in one area...

[Mad Trapper]

I know... but finding $3 is easier than finding an old tv....

Free section on Craigslist has TVs come up regular. You don't know how good the lens is until you pry it out. Some focus to a finer point.

[Mad Trapper]

How many here played with magnifying glasses as kids? We used to burn all kinds of stuff. Burn writing into pieces of wood..........

A small fresnel lens is handy to stick in your wallet to have for a reading glass or a firestarter.

[hawgrider]

How many here played with magnifying glasses as kids? We used to burn all kinds of stuff. Burn writing into pieces of wood..........

A small fresnel lens is handy to stick in your wallet to have for a reading glass or a firestarter.

Burned bugs too with the pocket magnifying glass.

[Mad Trapper]

Burned bugs too with the pocket magnifying glass.

We put ants inside a cone of sand they couldn't climb out of, or focused on the entrance to an ant hill.

[stevekozak]

Did anyone kill hobos too? Just curious. :mocking:

[hawgrider]

Did anyone kill hobos too? Just curious. :mocking:

No but.the sizzling sound of the bugs was cool!

[Sparkyprep]

I used to hook frogs up to dad's battery charger. I'm not proud of that......

[hawgrider]

I used to hook frogs up to dad's battery charger. I'm not proud of that......

Inventive rascal you were. Makes sense for an electrician named Sparky Lolololol!

[Jester-ND]

waiting for someone to tell about skinning the neighborhood cats and wearing their faces as a mask.... that would be the natural progression of this thread...

[Mad Trapper]

waiting for someone to tell about skinning the neighborhood cats and wearing their faces as a mask.... that would be the natural progression of this thread...

But then half the kids couldn't get any pussy!