PDA

View Full Version : Maiden voyage of my home-made hammock this week...!



paul standley
30-06-2011, 12:25 AM
So, you know how it goes, it seems everybody has a hammock except me so I wanted one...!

I'd never used a hammock (actually, I've never even seen one before in the flesh) and so I watched a few you tube vids and got the general idea... I thought...!

Bought 6 mtrs of rip-stop nylon x 1.3 mtrs wide for £5 from ebay and set about making a 'gathered end' hammock by doubling up the fabric length-ways to give me a hammock of 2.9 mtrs x 1.3 mtrs.

Got the wife to stitch in double hems each end and rigged up the ends with some polyprop cord and gathered it up and looped it.

I had two climbing carabiners and I rigged two tree-huggers using double knotted 550 para cord and it looked like a hammock to me so off I went on Sunday to the woods for two days and nights armed with my new budget hammock and my budget tarp.

Got it all set up easily enough and slid my self inflating mat between the two layers and popped my sleeping bag in it and left it at that until bed time. That's when the fun started because never having used a hammock before, I probably should have spent some time getting used to one first...!

First off, I realised that one end was much higher than the other and I kept slipping down so fixed that by lowering one end then got in again and then hey ho, I was now only 6" off the ground but that was a 'safe place' to be I thought for a first time so tried to settle down and then the mat kept sliding out from between the layers because I hadn't stitched the two layers together down the long sides and at one point it must have looked like the hammock had sprouted wings with the mat sticking out of both sides.

It was around 1.00 am when I finally wriggled myself to sleep and I was up 3 or 4 more times during the night to put the dam mat back in...!

Next morning, off I went to the local town to buy a needle and some thread and so spent the next two hours back on site under my tarp in the rain sewing down the two long sides by hand.

Re-jigged the tree huggers to get me back off the ground a bit more and was now already for night 2... or so I thought.

Monday night it was cold at around 9 degrees and windy and I only had a light summer sleeping bag so I spent the first hour after getting into it trying to balance my fleece over my legs for a bit more insulation.

Not withstanding all of the above, I actually think I got a half decent nights sleep on the 2nd night and am definitely impressed with the comfort of a hammock compared to ground dwelling in a tent as my back isn't what it used to be when I was younger.

My budget kit then for this latest caper consists of an £8 plastic tarp (3.2m x 2.8 m), £3 worth of para cord, £12 for two carabiners and £5 for the home made hammock.

Learned a few lessons the hard way but it was good fun and I'll definitely be doing some more hammocking this summer.

1864 1863 1862

Paul.

GwersyllaCnau
30-06-2011, 01:12 AM
Good luck paul

Martin
30-06-2011, 07:49 AM
Good write up Paul. A couple of things I may add from my experience are firstly, I always set my feet slightly higher than my head. This stops me from sliding down to the foot end and my head on the pillow means the blood doesn't settle in my head. Secondly, I now use a hammock under blanket instead of a mat but when I did use the mat, I cut a standard one in half and used the two pieces long ways but across the hammock, thus eliminating the cold sides. I have to say that the under blanket is the way to go, albeit an expensive one, but I get a really good cosy night's sleep.

Martin

MikeWilkinson
01-07-2011, 01:30 PM
A few other points for you, paul, be very wary of the Paracord - it will stretch and therefore you may wake up with your bum on the ground on a low pitch. 550 paracord is only rated to exactly that 550 lbs, Stick in a couple of knots and that is down to probably half that, depending on how tight you pull your hammock the force applied to the hammock can be as high as 1000 Ibs - it is all to do with beam theory and tension. Here is a quick diagram of how to work out how much force in terms of weight you are putting through your hammock suspension.

http://hikinghq.net/images/hammock/Hammock_Force_Diagram.jpg

If you use SLS or a structural ridgeline then this more relevant

http://hikinghq.net/images/hammock/Hammock_Ridgeline_Tension_Diagram.jpg

I use some Inch Polypro tape that I got of Ebay for £5 (10m worth) as my tree huggers, does less constriction damage to your trees and doesn't stretch a great deal.

My Hammock was a DIY job too, All I did was sew one long side and the open short side. I leave one long side open to either climb into or stick my mat in, when I whipped the ends, I fold the material to form a W, that creates two channels sort of. When I lie on the Diagonal my feet sit in one, my head in the other and my knees and hips are supported by the material in between.

I also make the lower layer slightly longer than the top layer, so that I have a pocket that doesn't compress to much when the hammock is tensioned, this means I can chuck insulative materials between the layers to help keep the wind of my back.

For some images of my hammock see this threads first post. The only difference is I originally had a sewn channel, but found I prefered the whipped end system better.

http://www.naturalbushcraft.co.uk/forum/showthread.php?100-How-do-you-hang

Happy hammocking, Mike :)

paul standley
01-07-2011, 06:37 PM
Thanks Mike and Martin for some good pointers.

I think I'll be switching to hammock & tarp for summer trips so I'll take your feedback and advice on board and make my rig more efficient.

I've now got some 1" polyprop load straps that I'll switch to instead of my paracord for tree hugging.

I want to adapt my rig to use a structual ridgeline as well so the stress charts will be very usefull.

Paul.

jikido
16-08-2011, 12:52 AM
A few other points for you, paul, be very wary of the Paracord - it will stretch and therefore you may wake up with your bum on the ground on a low pitch. 550 paracord is only rated to exactly that 550 lbs, Stick in a couple of knots and that is down to probably half that, depending on how tight you pull your hammock the force applied to the hammock can be as high as 1000 Ibs - it is all to do with beam theory and tension. Here is a quick diagram of how to work out how much force in terms of weight you are putting through your hammock suspension.

http://hikinghq.net/images/hammock/Hammock_Force_Diagram.jpg

If you use SLS or a structural ridgeline then this more relevant

http://hikinghq.net/images/hammock/Hammock_Ridgeline_Tension_Diagram.jpg

I use some Inch Polypro tape that I got of Ebay for £5 (10m worth) as my tree huggers, does less constriction damage to your trees and doesn't stretch a great deal.

My Hammock was a DIY job too, All I did was sew one long side and the open short side. I leave one long side open to either climb into or stick my mat in, when I whipped the ends, I fold the material to form a W, that creates two channels sort of. When I lie on the Diagonal my feet sit in one, my head in the other and my knees and hips are supported by the material in between.

I also make the lower layer slightly longer than the top layer, so that I have a pocket that doesn't compress to much when the hammock is tensioned, this means I can chuck insulative materials between the layers to help keep the wind of my back.

For some images of my hammock see this threads first post. The only difference is I originally had a sewn channel, but found I prefered the whipped end system better.

http://www.naturalbushcraft.co.uk/forum/showthread.php?100-How-do-you-hang

Happy hammocking, Mike :)

Brilliant info. Thankyou