Page 1 of 4 1 2 3 4 LastLast
Results 1 to 20 of 74
  1. #1

    Default Designing a Better Bear Canister

    We are a group of students at the University of Chicago working on designing a better bear canister, and we'd love to get your input to understand how we can improve your backpacking experience. This survey is confidential and should take no more than a few minutes to complete. As a token of our appreciation, complete the survey by 6 pm CT on Friday, 4/13 to be entered in a drawing to win a $100 Amazon gift card!

    Please fill out the survey at https://chicagobooth.az1.qualtrics.c...Xo8e6sd3YWuoIJ. Thank you in advance for your help!

  2. #2

    Default

    I completed your survey and wish you good luck.

    As you likely discovered with a bit of googling, as an engineering exercise this is a tough nut to crack with some very high regulatory hurdles thrown in for good measure.

  3. #3
    MuddyWaters's Avatar
    Join Date
    05-05-2011
    Location
    state of confusion
    Posts
    8,983
    Journal Entries
    1

    Default

    Only thing that matters is weight, price, and getting approval by yosmite/seki. To be better than existing products that is. Good luck.

    Seems they really are focusing on a modular expandable size thing to me. Which is irrelevant imo.
    "Inevitably, a long distance hiker must choose between travelling light, and not travelling at all." - Earl V. Shaffer

  4. #4

    Default

    Get out and hike the AT or any trail for a few days or weeks,that might give your group an idea what is needed.

  5. #5
    GSMNP 900 Miler HooKooDooKu's Avatar
    Join Date
    02-25-2007
    Location
    Birmingham, AL
    Age
    51
    Posts
    3,579
    Journal Entries
    1
    Images
    5

    Default

    abeona, assuming you're following up on this thread... a few things to realize (in case you don't already)...

    1. Someone recently tried to create a new bear canister... trying to create a solution that was lighter weight and cheaper than what was available. It was a failure. (I believe it was called "Honey Pot" and was a kick-starter campaign. Was "active" as recently as about a year ago, but can't find any evidence of the project with a quick google search anymore).
    2. Bears have an incredible sense of smell... I've heard of studies where food was placed in nested ziplock bags and the bear still had no problem finding the food.
    The purpose of a bear canister isn't to hide the scent of the food, the purpose of the bear canister is to create a package that frustrates the bear so that after he's learned that he can't get into the canister, he quits trying in the future when he encounters the same object and knows he can't get into it.
    3. Personal judgement call... but I believe the concept of building an expandable bear canister is a fool's errand. I don't think it is going to be possible to build a bear canister that can change size AND still keep out a bear without increasing the weight such that the expand-ability just isn't worth it. Perhaps the only possible exception would be some sort of setup where two bear canisters could be combined (i.e. the lid and canister is designed in such a way that a second bear canister could substitute as a lid).

  6. #6
    Rain Man's Avatar
    Join Date
    08-07-2003
    Location
    Nashville, Tennessee
    Age
    67
    Posts
    5,982
    Images
    620

    Default

    I understand a danger with bear canisters is bears rolling them away, even over cliffs to break them or so far away that hikers can't find them, even if they are still intact. Why don't bear canisters have a way to fasten them to a tree, boulder, etc.?

    BTW, I tried the link multiple times. It never opened, just "churned" and "churned."
    Last edited by Rain Man; 04-11-2018 at 11:45.
    ye shall not pollute the land wherein ye are: ... Defile not therefore the land which ye shall inhabit..... Numbers 35

    www.MeetUp.com/NashvilleBackpacker

    .

  7. #7
    Wanna-be hiker trash Sarcasm the elf's Avatar
    Join Date
    03-05-2010
    Location
    Connecticut
    Age
    36
    Posts
    6,727
    Images
    78

    Default

    Quote Originally Posted by Rain Man View Post
    I understand a danger with bear canisters is bears rolling them away, even over cliffs to break them or so far away that hikers can't find them, even if they are still intact. Why don't bear canisters have a way to fasten them to a tree, boulder, etc.?
    As I understand it, the answer is because canisters are designed so that bears cannot get any sort of grip on them. Lightweight canisters are far from indestructible and bears are more than strong enough to break into the average canister if it can get sufficient grip or leverage to get a purchase on the container. This is the reason that when storing canisters on trail it is recommended to not attach rope or webbing, put it any sort of bag, or wedge it in trees or rocks that can potentially give a bear the leverage needed to break the canister open.
    Colorless green ideas sleep furiously.

  8. #8
    Registered User
    Join Date
    02-04-2013
    Location
    Virginia and Louisiana
    Posts
    3,929

    Default

    I've spent quite a bit of time in the Sierra Nevada over the past five years and never had a bear so much as move my Bearikade a single inch. I usually keep it within view of my tent so I can see it when inside the tent and I put my stove on top of the canister so I'm alerted if anything messes with the canister. I'm sure bears have smelled the food and come by at night. They apparently know Bearikades are hopeless to get into so they leave it alone. I don't think there's anything wrong with the current canisters on the market when used correctly. Of course if someone can design a lighter and better solution, I'd be interested in it. For the most part, canisters have solved the bear problem in the Sierra Nevada. Bears can no longer get food when food is properly secured. The weak link is human error but it is much harder to screw up using a bear canister than a bear hang.

  9. #9
    MuddyWaters's Avatar
    Join Date
    05-05-2011
    Location
    state of confusion
    Posts
    8,983
    Journal Entries
    1

    Default

    Approved cannisters also have only resisted 1 hr of bear play. Pictures have been seen on here before of igbc approved cannister that lil ol black bear ate his way into.

    You need to have mindset to defend cannister. Given enough time, an interested bear WILL defeat all of them. Known to do in yosemite by rolling off cliff. Maybe should pass loaded 100' drop test onto concrete also.
    Last edited by MuddyWaters; 04-11-2018 at 16:50.
    "Inevitably, a long distance hiker must choose between travelling light, and not travelling at all." - Earl V. Shaffer

  10. #10
    Registered User
    Join Date
    12-19-2005
    Location
    Knoxville, TN
    Posts
    2,451

    Default

    BTW, I tried the link multiple times. It never opened, just "churned" and "churned."


    worked for me a minute ago....

  11. #11
    Registered User
    Join Date
    02-04-2013
    Location
    Virginia and Louisiana
    Posts
    3,929

    Default

    Quote Originally Posted by MuddyWaters View Post
    You need to have mindset to defend cannister.
    Agreed. That's why I keep mine a short distance from my tent (maybe 20-30 yards or so) so I can see it from inside my tent and hear it at night. I don't agree with the advice typically given to put it far away from camp. Especially if there's a lot of white noise like a river nearby. I want to know if a bear is messing with my canister. Never happened so far but it could.

    I only have experience with black bears. Would probably feel different about grizzlies.

  12. #12
    Registered User lonehiker's Avatar
    Join Date
    11-18-2005
    Location
    Cheyenne, WY
    Age
    54
    Posts
    1,216

    Default

    Quote Originally Posted by Coffee View Post
    Agreed. That's why I keep mine a short distance from my tent (maybe 20-30 yards or so) so I can see it from inside my tent and hear it at night. I don't agree with the advice typically given to put it far away from camp. Especially if there's a lot of white noise like a river nearby. I want to know if a bear is messing with my canister. Never happened so far but it could.

    I only have experience with black bears. Would probably feel different about grizzlies.
    Exactly what experience do you have with black bears? I mean hiking in black bear country isn't exactly like having experience with them...
    Lonehiker

  13. #13
    Registered User lonehiker's Avatar
    Join Date
    11-18-2005
    Location
    Cheyenne, WY
    Age
    54
    Posts
    1,216

    Default

    Quote Originally Posted by Coffee View Post
    Agreed. That's why I keep mine a short distance from my tent (maybe 20-30 yards or so) so I can see it from inside my tent and hear it at night. I don't agree with the advice typically given to put it far away from camp. Especially if there's a lot of white noise like a river nearby. I want to know if a bear is messing with my canister. Never happened so far but it could.

    I only have experience with black bears. Would probably feel different about grizzlies.
    Exactly what experience do you have with black bears? I mean hiking in black bear country isn't exactly like having experience with them...
    Lonehiker

  14. #14
    MuddyWaters's Avatar
    Join Date
    05-05-2011
    Location
    state of confusion
    Posts
    8,983
    Journal Entries
    1

    Default

    Quote Originally Posted by lonehiker View Post
    Exactly what experience do you have with black bears? I mean hiking in black bear country isn't exactly like having experience with them...
    Experience they are wussies that run away.

    I keep mine 10 ft from my tent. Or where it cannot roll away, especially downhill into creek.
    "Inevitably, a long distance hiker must choose between travelling light, and not travelling at all." - Earl V. Shaffer

  15. #15
    Registered User
    Join Date
    01-23-2006
    Location
    Melbourne,Australia
    Age
    63
    Posts
    2,703

    Default

    [QUOTE=HooKooDooKu;2204042]abeona, assuming you're following up on this thread... a few things to realize (in case you don't already)...

    1. Someone recently tried to create a new bear canister... trying to create a solution that was lighter weight and cheaper than what was available. It was a failure. (I believe it was called "Honey Pot" and was a kick-starter campaign. Was "active" as recently as about a year ago, but can't find any evidence of the project with a quick google search anymore).

    This one ?
    https://www.indiegogo.com/projects/h...ters-camping#/

  16. #16

    Default

    Everything University of Chicago students need to know about bears can be found here: http://www.chicagobears.com.


    Sent from my iPad using Tapatalk Pro

  17. #17
    Registered User
    Join Date
    01-23-2006
    Location
    Melbourne,Australia
    Age
    63
    Posts
    2,703

    Default

    Another one that did not happen is this one :
    http://www.trailspace.com/blog/2011/...arier-700.html
    they usually fail because they don't pass the tests set by the relevant authorities.

  18. #18
    Registered User
    Join Date
    08-05-2013
    Location
    Sacramento, CA
    Age
    71
    Posts
    991

    Default Designing a Better Bear Canister

    Now that you know everything you need to know about bear canisters, can you guys make a food canister with a lid on the top and bottom? That way when you get low on the sugar, flour or whatever, you can just fill it up and turn it over - and now the older stuff is on top.
    If you make it, I'll buy the first set!

  19. #19
    Registered User
    Join Date
    08-05-2013
    Location
    Sacramento, CA
    Age
    71
    Posts
    991

    Default Designing a Better Bear Canister

    Sorry - shouldn't have gone off topic. Should have sent a pm. Wasn't thinkin

  20. #20
    Registered User
    Join Date
    02-04-2013
    Location
    Virginia and Louisiana
    Posts
    3,929

    Default

    Quote Originally Posted by lonehiker View Post
    Exactly what experience do you have with black bears? I mean hiking in black bear country isn't exactly like having experience with them...
    Exactly who are you to interrogate me about my experiences? Have something to say? Say it.

Page 1 of 4 1 2 3 4 LastLast
++ New Posts ++

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •