Results 1 to 4 of 4
  1. #1
    Senior Member Lost_Biker's Avatar
    Join Date
    Jan 2011
    Location
    Indiana
    Hammock
    DIY Digi Camo DL
    Tarp
    Maxi Tarp
    Insulation
    Underquilts Lewis
    Suspension
    Rings and Straps
    Posts
    2,090
    Images
    48

    Dual Layer Underquilt

    Greetings all. Been a long hot summer here in Indiana and haven't had the energy to do much hammocking. What I did manage to do was make a new dual layer underquilt for my dual layer blackbird. Probably overkill, but it was interesting to make.

    I started with one 3/32 inch sheet of Polyethylene foam. Equivalent to 3 sheets of IX. Then I made up the bottom ripstop out of scrap pieces of left over winter camo 1.9oz. Please don't ask - this was purchased at wally world last year and these are all the scraps made into a single sheet. Wally world doesn't have any more of this pattern.

    The poly sheet is 72 inches long and 48 inches wide. With 2 inch baffles at the end, the total length is 76 inches. I used poly pillow stuffing for the baffle tubes - 1 oz to each end. Too much stuffing and the baffles won't seal properly.

    I then used another scrap sheet of 1.1 oz olive ripstop to make the inner layer - yes, its the same as putting a sheet top and bottom. I only sewed the top and foot and the right side (non open side of BB) and only sewed a 6 inch length in the middle of the open side. This lets me insert more poly sheets or some other insulation that sits between the bottom of the hammock and the inside of the underquilt.

    I've only been able to test it when the temps went down to a chilly 63 degrees here, but with a single layer of poly I'm good to the high 40's as tested in another poly underquilt I made. An additional sheet will take me to the high 20's as tested earlier this year. I'm a cold sleeper. With the right clothes I can get to the low teens ok. Added insulation does not slide around. I put the rough side on top.

    With only 2 lengths of 1/8 shock cord (2 three ft. lengths) I can hook the ends of the shock cord directly to my whoopie slings using mini carabiners (1 each end). I made the foot end so it will roll over the foot box without squeezing my feet. The long length covers me from head to foot easily - I'm 6' 1". The baffles seal very well. The only thing I have left to do is sew the stretch sides, then it will be officially done.

    How much does it weigh? My postal scale says 20 oz. with cords (2 three foot lengths of shock cord) and hardware (2 mini carabiners). Each sheet of poly folds up to the size of a Nalgene water bottle, so for winter camping I can carry 2 sheets no problem. The entire underquilt folds up to the same size as a child's small sleeping bag.

    I bought the Polyethylene foam in a 25ft roll at Lowes. Total cost was nothing as it's all scrap put together. It's not pretty, but it does work! If I had to buy the materials it would cost about $38.00 if you use the bargain bin at wally world. The roll of poly is the expensive thing - $25 for a 25ft roll and that's the smallest piece you can buy at Lowe's, but I have enough left over from another project for 2 extra sheets. I love this stuff. Just make sure you punch some small holes in the poly so any moisture from condensation has a way out. I didn't have any problems with condensation, but you may.

    Now I just need some cold weather.
    Attached Images Attached Images
    I got in a fight one time with a really big guy, and he said, "I'm going to mop the floor with your face." I said, "You'll be sorry." He said, "Oh, yeah? Why?" I said, "Well, you won't be able to get into the corners very well."


    Underquilts.com

  2. #2
    Funny Money's Avatar
    Join Date
    Dec 2006
    Location
    FL
    Hammock
    Bridge
    Tarp
    JRB 11x10
    Insulation
    JRB UQ, EE TQ
    Suspension
    Dynaglide Whoopies
    Posts
    974
    Great looking piece of gear!

    I had no clue 3/32" could pack so tiny! I'm impressed. How small is the whole quilt compressed?
    -- Funny Money
    ------------------
    Love 'em while you got 'em

  3. #3
    Senior Member Lost_Biker's Avatar
    Join Date
    Jan 2011
    Location
    Indiana
    Hammock
    DIY Digi Camo DL
    Tarp
    Maxi Tarp
    Insulation
    Underquilts Lewis
    Suspension
    Rings and Straps
    Posts
    2,090
    Images
    48
    Thanks, Funny Money! - the entire underquilt folds and rolls to about the size of 2 stacked Nalgene bottles. I haven't really done anything except fold and roll. I'll get a picture up by tomorrow. The inserts fold and roll to Nalgene bottle size. The inserts are 6 inches less on all sides. Sorry for any confusion.
    Last edited by Lost_Biker; 07-22-2012 at 19:08. Reason: duh moment
    I got in a fight one time with a really big guy, and he said, "I'm going to mop the floor with your face." I said, "You'll be sorry." He said, "Oh, yeah? Why?" I said, "Well, you won't be able to get into the corners very well."


    Underquilts.com

  4. #4

    Join Date
    Nov 2013
    Location
    NC
    Hammock
    DH Thunderbird, WB BB
    Tarp
    WB SF, ENO PF
    Insulation
    New River, Owyhee
    Suspension
    Woopie
    Posts
    86
    Images
    3
    Interesting

Similar Threads

  1. Dual layer 1.1 or single layer 1.9
    By Flatliner in forum Do-It-Yourself (DIY)
    Replies: 17
    Last Post: 08-27-2014, 19:34
  2. Dual Layer Camo Reversible Hammock
    By Lost_Biker in forum Do-It-Yourself (DIY)
    Replies: 8
    Last Post: 09-29-2013, 05:53
  3. my DIY 1.1 oz dual layer hammock
    By BigHat in forum Do-It-Yourself (DIY)
    Replies: 16
    Last Post: 01-31-2013, 02:48
  4. Anyone Attempted a Dual Layer w/ .75 Ripstop???
    By Barefeetz in forum Do-It-Yourself (DIY)
    Replies: 7
    Last Post: 06-27-2011, 23:12
  5. MySingle Layer Dual Mode Hammock
    By turkeyboy in forum General Hammock Talk
    Replies: 19
    Last Post: 08-20-2008, 07:35

Bookmarks

Posting Permissions

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