Can in Can Grill

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Introduction: Can in Can Grill

Inspired by the Vesto Stove, I set out to take some garbage and make my own high efficiency barbeque.

Materials needed:
2 empy paint cans of differing size
Handfull of rivets

Tools needed:
Drill
Full drill bit index
Masking tape, 2"
Pen or Pencil
Tin Snips
Hammer
Flatt head screw
Pop-rivitter
Vice-Grip or Channel locks or Line-man pliers
Vacuum

Step 1: Find 2 Paint Cans

You will want the outer can to be large enough to provide a decent cooking surface, with the inner can being only a bit smaller. The intent is to have an air chamber that will pre-heat the incoming air to increase efficiency of fire.

Step 2: Drill Vent Holes

You will now be making the template for the air holes.

A. Wrap tape at the top of outer can, and at bottom of inner can. Two layers may be necessary if there is writing underneath tape. Then intent is to have the air move as far as possible inside of chamber, so it would be counter-productive to have holes at same level.

B. Draw a diamond or lattice patter in tape. This will help give you a regular pattern when drilling the holes. Make pattern large enough to retain structural integrity of can.

C. Attach lid and tape in place. (2nd Image)

D. Drill holes.

I used a 6.5mm drill for the holes of both cans and used the same pattern on both cans as well. You may want to use larger, I have not yet tested this and may enlarge my holes as well.

I found that when drilling, I could minimise the jaggies if I slowed the drill before pulling back out of the hole. Its nearly impossible to elimate jaggies, so beware of being pricked.

You could punch the holes instead of drilling, but this would cause extensive deformation of the can.

E. Remove tape after all the holes have been drilled. Remove tape with a waving motion to reduece breakage - making the process easier.

F. Lastly, vacuum all the shavings so you don't track them all over the house. A note: make sure you have a good bag in your vac. If not, you will most certainly cause extensive damage to your vacuum.

Step 3: Mark the Top

You need to mount the smaller can to the lid of the larger can.

A. Run tape along the perimiter of lid.
B. Place smaller can in center of lid and trace around it.
C. Draw a smaller circle, about a thumb's width or an inch smaller than traced circle.
D. Draw connecting lines about a thumbs widht apart.

Step 4: Punch and Cut the Top

A. Punch holes along smaller circle where the lines intersect.
B. Using a large flat-head screwdriver, punch a line between these holes. Go all around lid.
C. The last few sections will be more easily done with tin-snips.

D. Cut along connecting lines with tin snips
E. Bend tabs down.

The lid should fit snugly over small can.

Step 5: Mount Lid to Can

A. Flatten lid to can - tapping with hammer will help. (4th image, not 3rd image)
B. Bend tabs to fit snugly to can.
C. Drill a hole for rivet through a tab and rivet. Repeat with tab on oposite side of can. Repeat wth tabs half-way between riveted tabs. Continue untill all tabs are rivited. You will want to fit each tab before drilling.

When drilling hole, press lid onto can, so it doesn't slip out of place. See 5th image.

Step 6: Final Assembly

Place inner can into outer can and snug the lid on.

You're done.

Before you cook food on this bad boy, you will need to fire it up and burn off all the paint and other chemicals that my be on cans. You would be best to repeat a few times.

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    44 Comments

    Sad little man, Mr. not-so-Smart Kid. The end of the screwdriver you showed is slotted. Flat-head screws have conic profiles, and can be either slotted, phillips, or even star drivers. Irritant#9 is snarking, but he's right: the screwdriver you showed is a "slotted" screwdriver, not a flat-head:

    Flat-Head-Cap-Screws.gif62.jpgScrewflathead58K500.jpg

    Yeah, I'm a year late, but ... it's called a flat blade screwdriver, not a slotted screwdriver. The screw you use it on is called a slotted screw.

    Minor technicality, but if we must correct someone we should do it right.

    does it really matter? as long as it fits the screw.....

    yeah it's like if I say SODA and someone else may say POP and another fellow may use the term COKE. we are all asking for the same thing, it's a difference in how we speak. I grew up calling a slotted Screwdriver a flat head too. the Phillips head was a Cross Head. that;s what everyone I knew called it too.

    No actually it's not like that at all. If you work out in the field and you ask a helper to get you a 1/2" 6-32 flathead phillips screw, you don't need to wait half an hour for him to come back and tell you he couldn't find what you asked for even through you have hundreds of them in your truck. If you are calling it a Flathead screwdriver, you are using a "misnomer". Calling it a flathead screw driver irritates professionals because that is a confusing and incorrect reference. A flathead screw, if you look at it from the side has a conical profile and is flat on the drive face or "head". There are many driver types for flathead screws. You could call it whatever you want as long as you understand what you are talking about, it's just irritating to others who know different. To me it sounds like " Football Bat ".Hey, you can call a resistor a transistor if you want to, it doesn't mean you are correctly identifying the part in an industry accepted way.

    its all semantics. I always called it a blade screw driver

    Yes, it's semantics, but "semantics" doesn't mean "unimportant". Semantics refers to meaning. "Flat head screwdriver" has no meaning; it is only used here, and can't be used in a hardware store to buy a screwdriver, nor in a tool shop to get someone to hand you the right tool. "Semantics" requires that you use a meaningful word. That's why we tried to improve this instructable by correcting the mistake.

    I would also recommend what I call "flathead screwdrivers" or what you might refer to as "hearing protectors" If you don't wear flat head screwdrivers during all that banging, you might lose your hearing.

    a blade screw driver is flat (-) unlike a Philips (+).

    want to bet? most people including people who work at a hardware store think Philips, hex, square, star, or the other one with.

    i always called the single line "flat head" as well as everyone else i know O.o and the plus ones are phillips. also. "mr. smart kid" theres kinda a "be nice" rule, and calling somone who asked an entirely reasonable question isnt so nice...

    My campaign to rid the world of people who use "flathead scredrivers" shall never be over!

    and some people call a one type of screw a slotted screw, doesn't mean you use a slotted screw driver on it.

    Where can you buy a flathead screwdriver? I never knew they made a screwdriver just for flathead screws. You didn't mention as to whether your flathead screwdriver was phillips or slot bladed....

    5 replies

    omg hahaha where do you buy a flathead screwdriver olol most hardware stores or sumfin liek walmart sumfin like that

    ZOMG you people here know how to talk about a simple thing as a flat srewdriver :-O