This video is EXCELLENT. My caldera cone melted, mostly because I put too many holes in the top edge. It lost its heat dissipation ability and the aluminum melted.
You can easily cut the roof flashing with scissors. I'd recommend using the titanium coated type for longer wear however. Have fun with it! Harbor Freight sells a very inexpensive hole punch (different size hole selections) that works great for making the exhaust and intake holes.
Great video. Just made one over hear in UK, can't get titanium foil, so had to use chinese 0.10mm stainless foil, turned out just as described, but ended up with fingers cut to pieces, ha hah. Works a treat , keep safe and well.
I found the best performance was from a small V-8 can double wall styled burner. The flames from a Pepsi can size burner would overshoot the pot and burn up the cone. I'm not sure I understand the O2 issue. Starving the burner would be bad. Too many holes defeats the cone efficiency. On a different note, I have now a 2 piece Caldera Cone that stows inside my pot. Simple to do and eliminates the need for another conatiner to stow the cone in. I'll be putting a video together on how to make it
Titanium sheet is the only lighter yet durable material I can think of. Search around for Ti sheet. Expensive but should last a long time...more so than roof flashing.
Man that is too awesome! I am a Trangia owner, but wanted to lighten up my system a little. I appreciate your video and I hope that I can make something that kewl too!
A very well made tutorial. I have no doubt this can be made with titanium foil. I know titanium goat sells the foil. You may be able to find it cheaper elsewhere though. Nice Job.
Perhaps a duct work reducing fitting might be easier? Say 10" to 4" reducer? I think they have those for wood burning stove ducts too (black in color and no zinc coating).
I hope your vid on the 2 piece cone is still in the works - I'd really like to see that! Have you experimented with an "open-type" can stove using plumbers cloth inside to help optimize stove/cone efficiency (boil the most water with the least amount of fuel)?
Just a heads up, this doesn't work wtih a pot bigger than 6" diameter. the foil is not tall enough. On the other hand it does leave a cool triangle hole about an inch high in the back. Maybe this will be a replacement for the intake holes.
@2Questions007 do you make your own stove as well? I ask because according to Trail Designs, standard alcohol stoves don't work well in the low O2 environment inside the cone
Thanks so much. Your video makes it easy for a non math person to make this. It worked great! Do you have suggestions for a lighter material to use? My cone weights more than my heinekan pot.
The red lines simply show the shape of the cone, either short and stout or long and slender. By moving the "common point" higher, the cone becomes more slender
It needs to be 1-1/2" because the 1/2" inward bend and 1/2" outward bent overlap 1/2"....therefore you need to add 1-1/2" to your length dimension. You may find it a bit tight around the pot as a result but you can trim the 1/2" inward and outward bends to gain a bit more circumference. Actually adding 1-3/4" works a bit better.
do you still have this cone? It looks like you're using a MSR Titan .85l pot. If so, is there any chance you could trace a template for it and upload it?
Because the joint is actually 4 layers thick. The first layer determines the circumference. The second, third, and fourth are overlaps. At 1/2 inch each, they total 1-1/2".
The video is great, but you are making a (geometrical) mistake: In your case the piece of flashing you cut out is exactly 5 3/4" high (like the desired total height of pot+space+burner), but due to the fact that you create a cone and the flashing is assembled slant then, your finished cone is not as high as desired. The solution is a bit more complex, but if you want I can send you a scheme. Just let me know.
+Jannik Mi is the solution just simple trig? Where one side of the triangle is width at top - width at bottom, another side is his desired height, and the side you solve for is the actual height you cut the metal to?
Stephen Haitch Actually since that video was made, I have figured out a way to make a two-piece Caldera cone that easily stores in my pot. Quite simple really, just make two identical cones, cut them down so that the top one overlaps the lower one by 3/4" so that when together are the total height you need. You will need to "pin" the lower cone so it will not collapse under the weight of the pot and water. Drill a hole and insert a bent piece of coat hanger to pin it.Hope that helps.
I made a similar split cone about five years ago, after seeing a vid from Wandering Dot. I ran into the same problem of collapsing under the weight and came up with a workable, if inelegant, solution using a small screw and washer. I'm looking at improving the design. Do you "pin" this through the lap fold or outside it? Top and bottom, or just one?
This video is EXCELLENT. My caldera cone melted, mostly because I put too many holes in the top edge. It lost its heat dissipation ability and the aluminum melted.
Brilliant in its simplicity, and marvelously clear in direction. Mine works like a charm, a nice
You can easily cut the roof flashing with scissors. I'd recommend using the titanium coated type for longer wear however. Have fun with it! Harbor Freight sells a very inexpensive hole punch (different size hole selections) that works great for making the exhaust and intake holes.
this is amazingly detailed. maximum glory, thank you very much for these instructions!!
with much trial and error, i succeeded in creating my specific application!! thanks again!!
Great video. Just made one over hear in UK, can't get titanium foil, so had to use chinese 0.10mm stainless foil, turned out just as described, but ended up with fingers cut to pieces, ha hah. Works a treat , keep safe and well.
Short and easy! 10 of 10. Perfect 👍
I found the best performance was from a small V-8 can double wall styled burner. The flames from a Pepsi can size burner would overshoot the pot and burn up the cone. I'm not sure I understand the O2 issue. Starving the burner would be bad. Too many holes defeats the cone efficiency.
On a different note, I have now a 2 piece Caldera Cone that stows inside my pot. Simple to do and eliminates the need for another conatiner to stow the cone in. I'll be putting a video together on how to make it
Titanium sheet is the only lighter yet durable material I can think of. Search around for Ti sheet. Expensive but should last a long time...more so than roof flashing.
Great video. Thanks. Easy to follow as well.
Man that is too awesome! I am a Trangia owner, but wanted to lighten up my system a little. I appreciate your video and I hope that I can make something that kewl too!
Thanks so much,made one this weekend ,turned out great.I did use the 1-3/4'' and trimmed off some,perfect.
Can't wait for the new video! When do you think you'll have it up? Thanks!
Excellent Video! Thank you SO MUCH! Making one this weekend for sure.
A very well made tutorial. I have no doubt this can be made with titanium foil. I know titanium goat sells the foil. You may be able to find it cheaper elsewhere though. Nice Job.
Great DIY Video
Excelent video. Exactly what I was looking for. Thanks!
Perhaps a duct work reducing fitting might be easier?
Say 10" to 4" reducer?
I think they have those for wood burning stove ducts too (black in color and no zinc coating).
again what they said....very nicely done and informational
I hope your vid on the 2 piece cone is still in the works - I'd really like to see that! Have you experimented with an "open-type" can stove using plumbers cloth inside to help optimize stove/cone efficiency (boil the most water with the least amount of fuel)?
Is this Mike Rowe? Great voice man!
Just a heads up, this doesn't work wtih a pot bigger than 6" diameter. the foil is not tall enough. On the other hand it does leave a cool triangle hole about an inch high in the back. Maybe this will be a replacement for the intake holes.
@2Questions007 do you make your own stove as well? I ask because according to Trail Designs, standard alcohol stoves don't work well in the low O2 environment inside the cone
What is that metal bending tool you used for the edging?
Thanks so much. Your video makes it easy for a non math person to make this. It worked great! Do you have suggestions for a lighter material to use? My cone weights more than my heinekan pot.
The Caldera cone traps so much heat that often the burner is now oversized! For my MSR Ti pot I use a small V-8 can alky burner....just right.
Great video! I've been looking all over the place for a tutorial on how to make one of these. Will a simple box cutter knife cut the aluminum?
best vd and expainable, well done !!!
Don't plumbers and roofers use those kinds of cones for pipe feed through on a roof?
The red lines simply show the shape of the cone, either short and stout or long and slender. By moving the "common point" higher, the cone becomes more slender
Great tutorial ! Would really like to see your 2 piece design : )
Nicely done!
Well done. Thanks
It needs to be 1-1/2" because the 1/2" inward bend and 1/2" outward bent overlap 1/2"....therefore you need to add 1-1/2" to your length dimension. You may find it a bit tight around the pot as a result but you can trim the 1/2" inward and outward bends to gain a bit more circumference. Actually adding 1-3/4" works a bit better.
Do you do professional voice work?
Great information! Step by step instruction 5*
do you still have this cone? It looks like you're using a MSR Titan .85l pot. If so, is there any chance you could trace a template for it and upload it?
Great info, thx for the instruction.
Wonderful!!!
Its called a folding tool, used in my HVAC. Get them from Amazon...Malco 8" folding tool
Ditto! Awesome. 5/5
+why do you add 11/2 '' if you bend each end 1/2 ''
Because the joint is actually 4 layers thick. The first layer determines the circumference. The second, third, and fourth are overlaps. At 1/2 inch each, they total 1-1/2".
Hey thanks! very informative :)
The video is great, but you are making a (geometrical) mistake: In your case the piece of flashing you cut out is exactly 5 3/4" high (like the desired total height of pot+space+burner), but due to the fact that you create a cone and the flashing is assembled slant then, your finished cone is not as high as desired.
The solution is a bit more complex, but if you want I can send you a scheme. Just let me know.
+Jannik Mi is the solution just simple trig? Where one side of the triangle is width at top - width at bottom, another side is his desired height, and the side you solve for is the actual height you cut the metal to?
+kyl3dr not sure what i thought back then, but quickly thinking about it that makes sense.
How do you store it with your gear?
Stephen Haitch
Actually since that video was made, I have figured out a way to make a two-piece Caldera cone that easily stores in my pot. Quite simple really, just make two identical cones, cut them down so that the top one overlaps the lower one by 3/4" so that when together are the total height you need. You will need to "pin" the lower cone so it will not collapse under the weight of the pot and water. Drill a hole and insert a bent piece of coat hanger to pin it.Hope that helps.
I made a similar split cone about five years ago, after seeing a vid from Wandering Dot. I ran into the same problem of collapsing under the weight and came up with a workable, if inelegant, solution using a small screw and washer. I'm looking at improving the design. Do you "pin" this through the lap fold or outside it? Top and bottom, or just one?
ok !
. . . Piece of kit conjured from scraps.
The Caldera cone traps so much heat that often the burner is now oversized! For my MSR Ti pot I use a small V-8 can alky burner....just right.
The Caldera cone traps so much heat that often the burner is now oversized! For my MSR Ti pot I use a small V-8 can alky burner....just right.
The Caldera cone traps so much heat that often the burner is now oversized! For my MSR Ti pot I use a small V-8 can alky burner....just right.