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Ridged Foster's Cans
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David Gardner
(GearMaker) - M

Locale: Northern California
Ridged Foster's Cans on 03/04/2014 20:39:19 MST Print View

Giving credit where credit is due, I believe Dan Yeruski figured out how to do it first; Trail Designs figured out a way to do it too; and I have finally also figured out a way to fabricate ridges into Foster's cans. The lowest ridge is 4 oz, the second ridge is 8 oz, the third ridge is 12 oz, and the top ridge is 16 oz (also Dan's idea). As a side benefit, the fabrication process removes nearly all of the BPA plastic film inside the cans.

ribbed

[edited to pay homage to Dan Yeruski and Trail Designs]

Edited by GearMaker on 03/04/2014 22:38:04 MST.

Greg Mihalik
(greg23) - M

Locale: Colorado
Re: Ridged Foster's Cans on 03/04/2014 20:57:46 MST Print View

FYI

RibbedFosters

David Gardner
(GearMaker) - M

Locale: Northern California
Re: Re: Ridged Foster's Cans on 03/04/2014 21:27:57 MST Print View

Yeah, Dan/Zelph's ridged Foster's cans are great. He's figured out a different way to do it. But, I believe they still have the plastic lining. Also, my tests indicate that brushed cans absorb heat better than cans with the shiny original finish.

Edited by GearMaker on 03/04/2014 21:29:31 MST.

Delmar O'Donnell
(Bolster)

Locale: Between Jacinto & Gorgonio
Secret? on 03/04/2014 22:03:56 MST Print View

David, looks nifty. Is your method a secret ?

Edited by Bolster on 03/04/2014 22:04:43 MST.

David Gardner
(GearMaker) - M

Locale: Northern California
Re: Secret? on 03/04/2014 22:37:20 MST Print View

Delmar,

As tempted as I have been to describe the various methods I tried and what I finally came up with, I'm trying to make and sell ultralight products so I guess it's proprietary.

Not that it would be easy to replicate, since it required access to a full metal shop (my Dad's). Trail Designs told me their method is proprietary. It never occurred to me to ask Dan how he does it, but I think I remember a post in some thread where someone asked Dan how he did it and he declined to reveal his method. If my recollection is wrong, I stand corrected.

I will say that I tried a couple of commercially available bead rollers, and they did a very nice job of crinkling and cutting the cans. I gave some thought to making custom dies for one of the bead rollers, and may still try it, but it doesn't solve the problem of making multiple ridges at the same time with precise spacing to indicate the fluid levels. Nor does it resolve the issue of the BPA plastic lining.

I will also say that some of the key parts are available at any well-stocked hardware store, and part of the process can be duplicated in most kitchens.

Delmar O'Donnell
(Bolster)

Locale: Between Jacinto & Gorgonio
Understood. on 03/04/2014 22:57:59 MST Print View

Understood. Well, they look good!

Jon Fong
(jonfong) - F - M

Locale: FLAT CAT GEAR
Re: Ridged Foster's Cans on 03/04/2014 23:31:21 MST Print View

Nice job David! glad to see someone figured out how to get rid of the plastic liner.

Dan Yeruski
(zelph) - MLife

Locale: www.bplite.com
Ridges look great on 03/05/2014 07:33:10 MST Print View

Wow!!! ridges look great :-)

I have revealed the method I use in a thread here on BPL. It is basically what is shown on the "Instructibles" site. I added a thing or two to make sure of repeatability.

There are numerous online publications that state BPA is removed from the lining of cans during the process of canning the product within them. The canning process requires the food to be placed into the cans, then heated to approximately 180 degrees for a certain length of time and then the lid is applied. During the process, the BPA leaves the lining and enters the food.

That information came out years ago. I seriously doubt that can manufactures today are using BPA in their can linings after all the public concerns that we've heard about over the years.

We are doomed to hear of complaints about BPA, Alzheimers and aluminum, wood burning stoves made of zinc plated metal and maybe some other things that I have forgotten. It will never end :-(

I have the ability to make stoves like you and flatcatgear make. I have the ability to make Caldera Cones and conical windscreens. When do you think I should start manufacturing them to be included in my store?

Fred Frolov
(55284) - MLife
Ridged Foster's Cans on 03/05/2014 07:57:19 MST Print View

I hope I am posting this link properly:


http://www.backpackinglight.com/cgi-bin/backpackinglight/forums/thread_display.html?forum_thread_id=64374

Definitely a project that can be accomplished (with difficulty) DIY...

Delmar O'Donnell
(Bolster)

Locale: Between Jacinto & Gorgonio
Link? on 03/05/2014 12:58:57 MST Print View

Is this the link?

http://www.instructables.com/id/Tiffin-Box-from-Tuna-Cans/?ALLSTEPS

Nick Gatel
(ngatel) - MLife

Locale: Southern California
Re: Ridges look great on 03/05/2014 13:47:27 MST Print View

"I have the ability to make stoves like you and flatcatgear make. I have the ability to make Caldera Cones and conical windscreens. When do you think I should start manufacturing them to be included in my store?"

When any applicable patents expire.

Dan Yeruski
(zelph) - MLife

Locale: www.bplite.com
Re: Re: Ridges look great on 03/05/2014 18:00:51 MST Print View

Nick, that's when you can start ;-)

Gerald L
(Mtngeronimo) - F

Locale: SoCal
Re: Ridged Foster's Cans on 03/05/2014 20:21:32 MST Print View

Make Your Own Gear: 'Do-it-yourself tips and tricks, material sources, patterns, techniques, and discussions of how to HACK UP off the market products to make them lighter (and sometimes, better).'

To post a MYOG project without wanting to reveal the specifics of the build for proprietary reasons seems to be nothing more than an attempt to promote a product. I feel this goes against the stated and implied intent of this forum. Should the OP be better suited for 'Gear Deals' ?

David Gardner
(GearMaker) - M

Locale: Northern California
Re: Re: Ridged Foster's Cans on 03/05/2014 23:29:32 MST Print View

No need for hostility. If there was a mistake, it was an honest one, but I apologize nonetheless. I made the gear myself, so MYOG seemed appropriate. Most of the threads I have started have been MYOG so I just did it again.

Anyone out there know if there's way to re-designate a thread?

What is "OP"?

Edited by GearMaker on 03/13/2014 00:38:49 MDT.

Adam Kilpatrick
(oysters) - MLife

Locale: South Australia
Re: Ridged Foster's Cans on 03/06/2014 00:05:20 MST Print View

I'm wondering, does the ridging method rely on having a wide mouth at the top of the pot? Do you have to get a bunch of tools inside? Could you do it to a bottle? I have a bunch of these Japanese coffee bottles that I really like that would be great even if they just had one ridge in them. They are pretty strong as they are, as they cone and cap at top adds a lot of strength.

The cap on these is about an inch across (estimate, can't find a ruler around here at the moment).

Nick Gatel
(ngatel) - MLife

Locale: Southern California
Re: Re: Re: Ridged Foster's Cans on 03/06/2014 00:07:49 MST Print View

MYOG or some other doesn't make a difference. Let's keep on track here, it's an interesting thread. If there's a problem Caffin or RJ can intercede. If they don't care, then no one should either.

David Gardner
(GearMaker) - M

Locale: Northern California
Re: Re: Ridged Foster's Cans on 03/06/2014 00:26:36 MST Print View

Adam, my rig requires a wide mouth. It barely fits in the can. It could be made smaller, but I'm not sure it would have the necessary rigidity. 1" is pretty small, though it would be very cool if someone could figure out how to put ridges in an Al bottle.

Thanks Nick, Delmar, Jon. Here is a photo of my milled, drilled, bolted, TIG welded and glued rig:

ridger

Edited by GearMaker on 03/06/2014 00:29:22 MST.

Adam Kilpatrick
(oysters) - MLife

Locale: South Australia
Re: Re: Re: Ridged Foster's Cans on 03/06/2014 00:34:36 MST Print View

Nice piece of Engineering. Yep that would be tough to get in a bottle. Are those little wheels nylon? I bet you could pump out ridged cans quite fast with this rig. Cool :-)

If you want some bottles to play with, maybe I can get a few to post to you (from Japan in the next week or so). Though it looks like the "Coors" bottles in the US are pretty similar that some people use, so probably cheaper just to get them to try first.

If that horizontal square tube "support" was say 15 or 20mm across/diameter, and you just had one "disc" right on the end, you could possible get it inside the bottle by disconnecting the support and angling it. Then reattach the support to the mount and make a single ridge at a time. Better than nothing. With good high tensile steel or chromoly with a thick wall thickness I'm sure it could be made strong enough to do the job.

Bob Gross
(--B.G.--) - F

Locale: Silicon Valley
Re: Re: Re: Re: Ridged Foster's Cans on 03/06/2014 00:37:54 MST Print View

"Though it looks like the "Coors" bottles in the US are pretty similar that some people use"

I was checking out the 16 fluid ounce aluminum beer bottles in the store today. Coors, Miller, and Budweiser, none of which are my favorite brands.

--B.G.--

Adam Kilpatrick
(oysters) - MLife

Locale: South Australia
Re: Re: Re: Re: Re: Ridged Foster's Cans on 03/06/2014 00:39:23 MST Print View

I'm stoked that the best can here is off a black coffee that is actually quite drinkable. Most of the Japanese store coffees (and there are tons to choose from) are terrible. Pretty lucky!

Surely you can find a mate to drink it on your behalf Bob :-)