Hoop Net Math
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- Опубликовано: 15 мар 2019
- In this video we look at how I calculate my mesh count on hoop nets. The actual formula for calculating your "Hanging Ratio" is a little confusing so I figured out my own way. I hang my webbing on "halves" or somewhere there close to.
For this series we are making a 30" net with 1.5" mesh. This means the lead or mouth hoop is 30 inches in diameter, and the mesh is 1.5" between the knots. The math works the same though for any hoop or mesh size.
First find the diameter of the lead hoop, in our case 30 inches. then multiply the net diameter times pi (3.14) to get the circumference of the hoop. Divide the circumference of the hoop by the bar mesh size, in our case, 1.5". This gives you the number of meshes required to cover the net. Round up or down to get to a multiple of 6. This is a very important step and makes it a lot easier to tie the throats when the time comes.
For Mesh count between the hoops, you want between a half and 2/3 the diameter of your hoops between your hoops. In our 30" net, I want 15 to 20 inches between the hoops, with in ideal range of 18 inches. the official formula for hanging ratio will help you figure this but there is quite a lot of math involved. I simply divide my bar width by .55 for my stretched mesh length. In a 1.5" bar mesh tied on halves, each mesh will cover about 2.75 inches. For my 18" target between hoops, I divide 18 by 2.75 for a mesh count of 6.5 meshes between the hoops. I round up to 7 meshes between hoops to make it easier to keep track of.
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Thanks
Still to come are videos on tying the throats and tying in the hoops in. Afterwards we look into tarring the net. We will eventually get into tying walls, wings, and leads.
hay man i gotta give you a little update. Man this math has made life so much easier tying these nets up ! now i dont have to have my head stuck all up inside one of my frames to sew up a throat just punch in a few numbers in the ole calculator and i can sew up a throat on the bench in a nice comfortable position then just mark the knot spacing on the frame with a sharpie and taper measure and just sew the throats in ! its so nice ! now i do have one more question. what you where showing was for a
50% ratio what would you do to calculate for say a 30% or 60% ratio ?
Awesome news bro! I am glad it's helping someone else. As for changing the hanging ratio, that gets more into walls of webbing and less into hoop nets. I have a video planned for that when I tie the leads for this net. Also, I have the video edited on my computer of how I tie my throats, just need to upload it. The way I tie my throats though, you have to add or subtract 6 meshes to the overall count for them to come out right. This means that you never tie on a specific ratio. Also, adding or subtracting meshes to alter your ratio changes the shape of your throat. It may not choke down fast enough and leave a big center hole, or it may choke down too fast and not have a funnel shape to it. For hoop nets, stick with what is in the video. An old man showed me that trick and told me "don't go monkeying around trying to do something better, cause it won't work." So far, he's been right.
I've been wanting to know how a hoop net is made from the start to finish. Good video, but it's still Greek to me. But appreciate it.
If it's not too much trouble could I get a copy of all those calculations you have here on this video? If I could get a copy I would really really appreciate it and thanks in advance Never mine I found it, and thank you so much
Gonna do any videos on making the hoops them selves ?
Yes sir. I am looking for a suitable white oak tree to split them out of
Sweet ! Now I been taking notes on how you do your measurement but I have a question. Now I have always measured by half meshes and full meshes. I usually refer to the full mesh like my turtle nets are 3" mesh so my half meshes are 1.5". And two of those will give me a 3" mesh. Now I'm slightly confused about what your calling a bar mesh. It seems to me a bar mesh and a half mesh are the same . Is that right ? If so I'm slightly confused where you getting 1.5" from 2" mesh. Wouldn't a two inch mesh give a 1" half /bar mesh ?. Sorry I'm really really intrested in how you do you math just not super sure we're speaking quite the same language when it comes to terminology is all lol. Also will you be doing a video possibly on sewing on ordering a sheet of premade netting and sewing it on some hoops ? Please keep them coming !
Yeah, a bar is a half mesh. It measures the "bar" or length between the knots. When ordering prehung (sheets) of webbing, it is always measured in bar (half) mesh. You will see length measured as "stretched" mesh which is confusing because it isn't based on mesh size. Also, hanging ratio comes into play on ordering prehung webbing. I need to make an order of webbing and do a video on it. I'm not too far from tying the leads this will give me some material to work with and explain walled webbing. Hoop nets figure different than wall webbing.
Edit: as for the 2" mesh, that was just a peice I had laying around to show an example and make the math easier. The net in the series is 1.5" webbing, which is 3" stretched or whole mesh.. if you have any questions about any of it, post your hoop size and webbing and I can help you with the math.
That is that makes so much more sense ! Where do you order your netting supplies from ?
@@TheBlackTrapper I order from Fish Net Company out of Jonesville LA and from Memphis Net and Twine. It's getting hard to find good twine anymore. Do not but it from Walmart. Do not but Mason line, it's not twine and it isn't as strong. Get a Seine twine from maybe a local hardware or fishing store. As for shuttles (needles) I ordered several off eBay, I have made them out of wood, and I have one that was passed down to me by the man who got me started on webbing.