3D-printer stands for air horn canister stove

[Jan Rezac]

I got one of the small canisters repurposed from an air horn to be used with a stove. This topic is discussed in another thread here.

I had no issue with the valve, and the only thing to solve was the stability of the setup. I designed and printed two stands. The smaller one weights about 3 grams / 0.1 oz, and works well enough on a solid surface. It’s “wingspan” is a little more than the pot supports on the BRS stove, so the base is as stable as the pot on the stove.

The one with a full round base is more stable and works better on uneven ground. At only 6 g / 0.2 oz, I think it’s the better way to go. The diameter matches the common 100g canister, so it fits into any pot designed to accommodate it. And making other sizes is easy.

[Matthew / BPL]

Those look great. The round one looks perfect and I like that it fits into the pot easily. This strikes me as an excellent use of 3D printing.

[Jon Fong / Flat Cat Gear]

+1

[Jan Rezac]

If anyone wanted to print his own, here’s the openscad source code for the stand with the round base: https://pastebin.com/zX6pRW8Y

The dimensions can easily be customized by changing few key variables.

[Kevin Babione]

Jan – Thank you for posting your creations.  My “Rezac Saw” got a lot of use this past weekend and the rest of the group was really impressed by both the functionality and how light it was.

[John K]

Very nice! Thank you for developing and sharing.

[Tyler R]

+1 on this design!

I ended up cloning it in fusion 360 and modifying it to work with the wider falcon canisters as well as fit inside a pot I’ve been working on. Took it on a trip to the Cottonwood basin this past 3 day weekend and it’s perfect!

 

Jan, do you mind if I share an STL file of it?

[Jan Rezac]

Tyler, of course you can share your remake.

I’ve shared my design, and it comes as a parametric openscad code which can be easily adjusted for any canister and pot sizes.

[Fifty Weekends]

Jan this is so cool, I just printed one of these. Adjusted the canister size very slightly (was easy with openscad). I have an Evernew Companion Cup that I really like (I drink my coffee out of it most mornings), but it always bugged me that I couldn’t fit a 100g canister in it.

With this setup I have a stable cookset that all fits down into the tiny companion cup: Air horn + stand, BRS stove, bic-mini, lightload towel and a folding spork.

 

 

[Brian Devlin]

Either design could potentially be stabilized further with spare tent stakes or the like. I am sold on these little cannisters as easily being enough for 1-person over 2-3 days.  I just got five 2-cup boils out of mine with the 6th dying halfway through.  No 3-D here. I will have to channel my inner Jon Fong and try to make one with sheet metal.

[Jon Fong / Flat Cat Gear]

<p style=”text-align: left;”>Send me an empty can and I’ll design one.</p>

[Brian Devlin]

I was quick to make one Jon but surely lacking elegance.  BTW, I ran my boils with the Sterno Inferno and the Cheetah Fire Maple windscreen adapter plate.  I have some super crude simple ideas how to further stabilize in the field.

[Josiah M]

Can anyone print these me one of these and I’ll pay?

[David Thomas]

I just bring a cordless drill and a 1-3/8″ wood bit to drill a hole into a log and then my smallest-possible butane stove is completely bomber!

[Jon Fong / Flat Cat Gear]

I seems like with some scrape cordage, you could stake teh canister down in three places for a stable cooking system.  Probably lighter and cheaper, just more fiddle factor.  My 2 cents.

[Roger Caffin]

Not sure about the cordage itself. I have not tried the idea, but I would worry about it melting after a while from radiated heat.
Now, if you used thin multi-strand SS wire, possibly from a fishing shop – aha!

Cheers

[Tyler R]

Just got a message reminding me that I never shared the file of Jan’s support stand that I ported over to fusion 360.

So for those who haven’t learned openscad (you should!) heres the fusion360 version. There’s also a 3mf file for printing straight away if you have a need to modify it.

Opening sketch 1, adjusting the inner canister diameter dimension or the outer support diameter dimension will parametrically drive all other dimensions in the model. When you click “finish sketch” The new cannister stand with your custom dimensions should automatically update.

[Jon Fong / Flat Cat Gear]

I saw one of these on AliEpxress.  Heavy at 55 g but it’s $2 plus shipping.  It is a univesal stand so it also supports regular canisters.

[Jon Fong / Flat Cat Gear]

BTW,  here is a cool one I saw.  A universal canister holder that also supports inverted canisters: again cheap at $3.12 free shipping.

https://www.aliexpress.us/item/2252799820693921.html?spm=a2g0o.productlist.main.25.a8ac48d2W4oa4O&algo_pvid=7238c778-c528-40fe-a011-e695172e57b5&algo_exp_id=7238c778-c528-40fe-a011-e695172e57b5-12&pdp_npi=3%40dis%21USD%215.68%213.12%21%21%21%21%21%40211bf14716838217533244036d082f%2110000008723701120%21sea%21US%21117955866&curPageLogUid=UEblYWfX9ejh

 

[Bill Budney]

Those things are fine for normal-size canisters, but not for the tiny (1.5oz/43g) air horn canisters that Jan is targeting. And those tiny canisters are truly a better size for solo weekend trips. As David Thomas points out, the canisters are 1 3/8 inches in diameter.

Jan’s larger stand looks just about perfect.

There must be 3d printing services…

[Brian G]

Try a library.  Several around where I live offer a “send in the file, we’ll print it, you just pay for filament” service.

[Tyler R]

Hey Jan!

this past year I’ve been getting an ever increasing request from people to modify a custom size to take to their library for printing. And because I struggle saying no, I recently went to update my printables post of your stand to include an exported 3mf file of every canister size between 35 mm – 50 mm in 0.25 mm intervals so I don’t have to keep modifying it for people.
https://www.printables.com/model/245163-jan-rezacs-stove-canister-support-for-repurposed-a/files

However, when I uploaded them yesterday I noticed you now have a printables account too! And have had it for some time. I wanted to reach out to see if you’d like to get the files from me to put on your own printables account and I can remove my printables post of your stand. This way your designs are all consolidated in the same place and you get to rightfully receive the incentives printables gives to the wonderful creators like yourself.

[Matthew / BPL]

Tyler, you are very kind to help people out and thoughtful to want to move the files back to Jan.

[Jan Rezac]

Hey Tyler,

That’s a generous offer, thanks a lot! It would be nice to have all my design together on printables. I will add my original files and, with your permission, also the variants you generated

Also, I can prepare multiple sizes if the new version of the stand I’m using myself now. It’s much more stable than the old one. The size I use is already at printables, but without the source, so I can add both the opens and code and generate other sizes too.

P.S. I’m still using a pad inflator based on your early open-source version of PadPal, thanks a lot for sharing it, it’s a great invention!

 

[Tyler R]

No problem Jan! and thank YOU for making them! I’ve been using mine for 3 years now on almost every trip, it’s been the perfect companion for my cook kit these days!

RE Taking the sizes I added: Oh sure thing, no need to ask! Go ahead and download all the different sizes I uploaded and let me know when it’s good for me to take down my post. I’ll also try to go through my reddit history and update everytime I linked the stand that way any future readers have a direct link to yours instead of a dead link.

RE V2 Stand: That’s actually how I realized you had a printables account, I was uploading the files and the V2 post was recommended in the “related” tab and I though, “Oh someone made one with removable legs, thats cool!” and clicked on it only to discover it WAS YOU! XD

I do think there’s still a place for your V1 though, I too made a stand with carbon legs after seeing your V1, but I enjoy your V1 more because it’s less fidelly. I’m more keen to just be extra careful because I’m to much of a cranky-ass in the mornings to add time between me and coffee XD

RE YOU MADE A PAD-PAL VARIANT!?:
Woa! I didn’t know you made a Pad-Pal variant! That makes you only the third person I know do have done so. I find that so AWESOME! I’m hoping to update the Open-source version before the end of 2025. I have some ideas that should make it a good deal easier for people to make at home, increase the static pressure, and also use a brushless motor instead of the consumable DC motors on the last OS version. Fingers crossed I get the free time to start working on it here soon once I’m done with the Pad-Pal V5.3 update and the Pad-Pal Micro variant I’ve been working on; But thats getting into territory that steers this thread off topic.

This is for your stands after all! :D

RE Matt: Ah it’s the least I can do. I know what it’s like being a UL addict, wanting to try cool things the MYOG community does that the greater market just doesn’t have, but lack the skills to pull it off. In my case its sewing and patterns. I suck at those, and I just drool endlessly for the types of stuff Mont Molars makes. When he shared his patterns and did that post on his most liked hardwear/materials and where/how he uses them, it eliminated a tremendous amount of skill developmental work that I would have needed… Now I just need to get better at sewing. lol.

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