just yesterday i made an outline template for a 7’6" classic egg type board. the outline (is meant to) resembles a cooperfish comet. i’ve checked specs for 7’9"E and 7’11"R, and i know i can get the outline out of either blank. the 7’11"R is more readily available where i am, but i think i should order the 7’9"E and wait, to get a rocker more in tune with a shape of this type. does anyone have an opinion one way or another? I wouldn’t mind having to make a minor rocker adjustment (emphasis on the word minor). thanks
Im an amateur, but my specialty is mini mals and eggs. I like tail rockers to be about 2.8 to 3.0 percent of board length. For a 7’6" board my advice would put tail rocker at 2.5" to 2.7". I found the 7-9E tail rocker at 2.1875", and the 7-11R tail rocker at 2.625. You’d probably cut 1.5" off the 7-9E tail, and 2.5" off the 7-11R tail, lowering the rocker even more. The 7-11 R looks like it would have enough thickness to re-rocker the tail to the way I like it. I like nose rockers of 5" to 5.75".The 7-9E’s nose rocker is only 4.75", where the 7-11’s nose rocker is 5.1875". I’d use the 7-11R. I’m getting busy, but if I get a chance later, I’ll work up a matrix proposal for a 7-6 rocker template.>>> just yesterday i made an outline template for a 7’6" classic egg type > board. the outline (is meant to) resembles a cooperfish comet. i’ve > checked specs for 7’9"E and 7’11"R, and i know i can get the > outline out of either blank. the 7’11"R is more readily available > where i am, but i think i should order the 7’9"E and wait, to get a > rocker more in tune with a shape of this type. does anyone have an opinion > one way or another? I wouldn’t mind having to make a minor rocker > adjustment (emphasis on the word minor). thanks
Im an amateur, but my specialty is mini mals and eggs. I like tail rockers > to be about 2.8 to 3.0 percent of board length.>>> For a 7’6" board my advice would put tail rocker at 2.5" to > 2.7". I found the 7-9E tail rocker at 2.1875", and the 7-11R > tail rocker at 2.625. You’d probably cut 1.5" off the 7-9E tail, and > 2.5" off the 7-11R tail, lowering the rocker even more. The 7-11 R > looks like it would have enough thickness to re-rocker the tail to the way > I like it.>>> I like nose rockers of 5" to 5.75".The 7-9E’s nose rocker is > only 4.75", where the 7-11’s nose rocker is 5.1875". I’d use the > 7-11R.>>> I’m getting busy, but if I get a chance later, I’ll work up a matrix > proposal for a 7-6 rocker template. thanks very much Noodle, your answer has me thinking about taking the 7’11"R and taking the entire 5" of length off of the nose end. tail rocker would remain within your ballpark. i think you may have typo’d the 7’11"R’s nose rocker… i’m looking at 6.1875"…and if i’m right, cutting only from the nose should bring that rocker into range (hopefully not beyond). let me know if i’m overlooking something here. ok?
i think you may have typo’d > the 7’11"R’s nose rocker… i’m looking at 6.1875"…and if > i’m right, cutting only from the nose should bring that rocker into range > (hopefully not beyond). let me know if i’m overlooking something here. ok? I was afraid of the bad nose read. I couldn’t read it very well on the website. 6.1875" is too much nose rocker for a 7-6. Consider this, when you cut 5" off the nose and re-take rocked dims, you would have to rock the blank back far enough to move the tangent bisect 2.5" back. That would reduce the effective tail rocker reading. I know that lots of pros have standard ways that they re-rocker blanks. Since my volume is low I like to make rocker templates from thin plywood. You might wanna consider something like 3.5" off the nose and 2" off the tail. That would leave enough tail thickness to re-rocker the tail as needed. Either way, after you get the blank, you’ll want to sit it on a table and rock the blank to plan the rocker with a tape measure.
Consider this, when you cut 5" off the nose and re-take rocked dims, > you would have to rock the blank back far enough to move the tangent > bisect 2.5" back. That would reduce the effective tail rocker > reading. thick as i am, it took me a couple of reads to understand (in the paragraph above)the implication of only taking length off of one end. i see your point, and i appreciate your help. the fact that the 7’11"R is .3125" thinner than 7’9"E will save me some effort as well!
thick as i am, it took me a couple of reads to understand (in the > paragraph above)the implication of only taking length off of one end. i > see your point, and i appreciate your help. the fact that the 7’11"R > is .3125" thinner than 7’9"E will save me some effort as well! How thick are you looking to make the rails of the board? Specifically, in the nose. The 711R has a deck that slopes off pretty drastically, you might not be able to make it real round. The 79E has a domed deck too, but it’s thick enough to net you a big thick nose/tail/rails even after you take the crown out. http://www.kklmachine.com
How thick are you looking to make the rails of the board? Specifically, in > the nose. The 711R has a deck that slopes off pretty drastically, you > might not be able to make it real round. The 79E has a domed deck too, but > it’s thick enough to net you a big thick nose/tail/rails even after you > take the crown out. well, the outline i’ve done has an 18" nose, the 711R has 17.375 nose but if i’m moving back those 3.5" that i’m cutting off the front, i’m figuring i’ll get the 18" i want. as far as rail thickness at the nose, maybe 1.25" a foot back, and .75" way up at the front. i haven’t gotten a real good view of the foil of the board i’m trying to emulate. from what i can see, it seems to taper relatively thin at both ends. i do want my finish thickest point at just about 3". let me know what you think, if squeezing this nose into this blank is an iffy thing…thanks
well, the outline i’ve done has an 18" nose, the 711R has 17.375 nose > but if i’m moving back those 3.5" that i’m cutting off the front, i’m > figuring i’ll get the 18" i want. as far as rail thickness at the > nose, maybe 1.25" a foot back, and .75" way up at the front. i > haven’t gotten a real good view of the foil of the board i’m trying to > emulate. from what i can see, it seems to taper relatively thin at both > ends. i do want my finish thickest point at just about 3". let me > know what you think, if squeezing this nose into this blank is an iffy > thing…thanks I just went and measured one: At 15.5" from the tip it’s about 1.75+ in the rail (and PLENTY wide). The middle is 3.3" or so, but again, it’s pretty domed. If you’re looking to make a flat-decked board the E would be the better choice, but if you want it to be a bit crowned i think the R will be fine. http://www.kklmachine.com
I just went and measured one: At 15.5" from the tip it’s about 1.75+ > in the rail (and PLENTY wide). The middle is 3.3" or so, but again, > it’s pretty domed. If you’re looking to make a flat-decked board the E > would be the better choice, but if you want it to be a bit crowned i think > the R will be fine. thanks for checking, Tyler. i guess it’s my lucky day that you would have a sample handy!..PLENTY wide, huh? regarding your last bit of advice, when i look at this board i’m more inclined to think ‘flat deck’ rather than ‘crowned deck’. is this your impression seeing it in 3-D?
thanks for checking, Tyler. i guess it’s my lucky day that you would have > a sample handy!..PLENTY wide, huh? regarding your last bit of advice, > when i look at this board i’m more inclined to think ‘flat deck’ rather > than ‘crowned deck’. is this your impression seeing it in 3-D? I made another measurement (hey I’m bored, and this is pretty interesting!) and the R slopes off (from center to rail) by .9" while the E only slopes off by .45" (+/- .1 or so…not the most precise measurements) that means you have to take off .45" from the center of the deck of the R blank (this is at your 12" mark…) just to get to the same contour of the E. This leaves you with a somewhat thinner nose (it’s about 2.35+") right there where I measured it. I think this is still within what you want to get (I.E. go for the R), so it should work, but if I had one chance to get a board right and couldn’t adjust to follow the blank (I’m thinking like a machinist here [wink]) I wouldn’t take the risk.
I worked up matrices for what I would expect out of your board. I was wrong in my earlier nose rocker quote. I couldn’t work in more than 4.5" of nose rocker without exceeding 40 degrees at the tip. Yoou haven’t quoted us your desired width or thickness. Here are three dimensions of shaped blank matrix. The width is 15.2" x 22" x 18" with 2.8" forward offset… kinda egg-ish. The shape is 2.9" thick. The deck is only slightly crowned. The mid-blank outline is .8" above the bottom, and the rails are slightly tucked, with the tuck intersecting the bottom at 2.5". With the reduced nose rocker, I think either blank could be shaped to these dimensions. If you want to tweak any of these dims, just ask. I’ll save your shape. x Outline Rocker 0.0 , 0.000 , 2.697 0.0 , 0.000 , 2.697 0.5 , 1.421 , 2.629 1.0 , 2.136 , 2.561 2.0 , 3.139 , 2.430 3.0 , 3.894 , 2.305 4.0 , 4.517 , 2.184 5.0 , 5.054 , 2.068 6.0 , 5.529 , 1.956 7.0 , 5.954 , 1.848 8.0 , 6.340 , 1.744 9.0 , 6.694 , 1.644 10.0 , 7.019 , 1.548 11.0 , 7.320 , 1.456 12.0 , 7.600 , 1.367 13.0 , 7.860 , 1.281 14.0 , 8.103 , 1.199 15.0 , 8.331 , 1.120 16.0 , 8.543 , 1.043 17.0 , 8.742 , 0.970 18.0 , 8.929 , 0.900 19.0 , 9.104 , 0.833 20.0 , 9.268 , 0.769 21.0 , 9.422 , 0.707 22.0 , 9.566 , 0.649 23.0 , 9.701 , 0.593 24.0 , 9.828 , 0.539 25.0 , 9.945 , 0.489 26.0 , 10.055 , 0.441 27.0 , 10.158 , 0.395 28.0 , 10.253 , 0.352 29.0 , 10.341 , 0.312 30.0 , 10.422 , 0.274 31.0 , 10.497 , 0.238 32.0 , 10.566 , 0.205 33.0 , 10.628 , 0.175 34.0 , 10.685 , 0.147 35.0 , 10.737 , 0.121 36.0 , 10.783 , 0.098 37.0 , 10.824 , 0.077 38.0 , 10.860 , 0.059 39.0 , 10.891 , 0.043 40.0 , 10.918 , 0.030 41.0 , 10.941 , 0.019 42.0 , 10.959 , 0.010 43.0 , 10.974 , 0.004 44.0 , 10.985 , 0.001 45.0 , 10.993 , 0.000 46.0 , 10.997 , 0.002 47.0 , 11.000 , 0.006 48.0 , 11.000 , 0.012 49.0 , 11.000 , 0.022 50.0 , 11.000 , 0.034 51.0 , 10.999 , 0.048 52.0 , 10.998 , 0.066 53.0 , 10.995 , 0.086 54.0 , 10.992 , 0.108 55.0 , 10.986 , 0.134 56.0 , 10.978 , 0.163 57.0 , 10.968 , 0.195 58.0 , 10.954 , 0.229 59.0 , 10.937 , 0.267 60.0 , 10.916 , 0.308 61.0 , 10.890 , 0.352 62.0 , 10.859 , 0.400 63.0 , 10.822 , 0.451 64.0 , 10.778 , 0.506 65.0 , 10.728 , 0.564 66.0 , 10.669 , 0.627 67.0 , 10.602 , 0.693 68.0 , 10.525 , 0.764 69.0 , 10.438 , 0.839 70.0 , 10.340 , 0.918 71.0 , 10.230 , 1.002 72.0 , 10.106 , 1.092 73.0 , 9.967 , 1.187 74.0 , 9.813 , 1.287 75.0 , 9.641 , 1.394 76.0 , 9.449 , 1.507 77.0 , 9.236 , 1.627 78.0 , 9.000 , 1.755 79.0 , 8.737 , 1.891 80.0 , 8.444 , 2.037 81.0 , 8.118 , 2.193 82.0 , 7.752 , 2.360 83.0 , 7.340 , 2.540 84.0 , 6.874 , 2.736 85.0 , 6.340 , 2.949 86.0 , 5.720 , 3.183 87.0 , 4.981 , 3.445 88.0 , 4.063 , 3.741 89.0 , 2.813 , 4.085 89.5 , 1.906 , 4.283 90.0 , 0.000 , 4.505 RAIL: x Bottom Deck 11.00 , 0.000 , 0.000 10.98 , -0.131 , 0.179 10.95 , -0.206 , 0.282 10.90 , -0.288 , 0.398 10.80 , -0.397 , 0.559 10.70 , -0.475 , 0.680 10.60 , -0.535 , 0.779 10.40 , -0.623 , 0.941 10.20 , -0.684 , 1.072 10.00 , -0.726 , 1.182 9.80 , -0.755 , 1.277 9.30 , -0.792 , 1.469 8.80 , -0.800 , 1.614 8.30 , -0.800 , 1.726 7.80 , -0.800 , 1.815 7.30 , -0.800 , 1.885 6.30 , -0.800 , 1.984 5.30 , -0.800 , 2.043 4.30 , -0.800 , 2.075 3.30 , -0.800 , 2.091 2.30 , -0.800 , 2.098 1.30 , -0.800 , 2.100 0.30 , -0.800 , 2.100 0.00 , -0.800 , 2.100
just yesterday i made an outline template for a 7’6" classic egg type > board. the outline (is meant to) resembles a cooperfish comet. i’ve > checked specs for 7’9"E and 7’11"R, and i know i can get the > outline out of either blank hey ramon, for every comet i’ve made i used the walker 8’3".
Shoulda previewed. Here it is: OUTLINE: Length , Width , Rocker 0.0 , 0.000 , 2.697 0.0 , -0.000 , 2.697 0.5 , 1.421 , 2.629 1.0 , 2.136 , 2.561 2.0 , 3.139 , 2.430 3.0 , 3.894 , 2.305 4.0 , 4.517 , 2.184 5.0 , 5.054 , 2.068 6.0 , 5.529 , 1.956 7.0 , 5.954 , 1.848 8.0 , 6.340 , 1.744 9.0 , 6.694 , 1.644 10.0 , 7.019 , 1.548 11.0 , 7.320 , 1.456 12.0 , 7.600 , 1.367 13.0 , 7.860 , 1.281 14.0 , 8.103 , 1.199 15.0 , 8.331 , 1.120 16.0 , 8.543 , 1.043 17.0 , 8.742 , 0.970 18.0 , 8.929 , 0.900 19.0 , 9.104 , 0.833 20.0 , 9.268 , 0.769 21.0 , 9.422 , 0.707 22.0 , 9.566 , 0.649 23.0 , 9.701 , 0.593 24.0 , 9.828 , 0.539 25.0 , 9.945 , 0.489 26.0 , 10.055 , 0.441 27.0 , 10.158 , 0.395 28.0 , 10.253 , 0.352 29.0 , 10.341 , 0.312 30.0 , 10.422 , 0.274 31.0 , 10.497 , 0.238 32.0 , 10.566 , 0.205 33.0 , 10.628 , 0.175 34.0 , 10.685 , 0.147 35.0 , 10.737 , 0.121 36.0 , 10.783 , 0.098 37.0 , 10.824 , 0.077 38.0 , 10.860 , 0.059 39.0 , 10.891 , 0.043 40.0 , 10.918 , 0.030 41.0 , 10.941 , 0.019 42.0 , 10.959 , 0.010 43.0 , 10.974 , 0.004 44.0 , 10.985 , 0.001 45.0 , 10.993 , 0.000 46.0 , 10.997 , 0.002 47.0 , 11.000 , 0.006 48.0 , 11.000 , 0.012 49.0 , 11.000 , 0.022 50.0 , 11.000 , 0.034 51.0 , 10.999 , 0.048 52.0 , 10.998 , 0.066 53.0 , 10.995 , 0.086 54.0 , 10.992 , 0.108 55.0 , 10.986 , 0.134 56.0 , 10.978 , 0.163 57.0 , 10.968 , 0.195 58.0 , 10.954 , 0.229 59.0 , 10.937 , 0.267 60.0 , 10.916 , 0.308 61.0 , 10.890 , 0.352 62.0 , 10.859 , 0.400 63.0 , 10.822 , 0.451 64.0 , 10.778 , 0.506 65.0 , 10.728 , 0.564 66.0 , 10.669 , 0.627 67.0 , 10.602 , 0.693 68.0 , 10.525 , 0.764 69.0 , 10.438 , 0.839 70.0 , 10.340 , 0.918 71.0 , 10.230 , 1.002 72.0 , 10.106 , 1.092 73.0 , 9.967 , 1.187 74.0 , 9.813 , 1.287 75.0 , 9.641 , 1.394 76.0 , 9.449 , 1.507 77.0 , 9.236 , 1.627 78.0 , 9.000 , 1.755 79.0 , 8.737 , 1.891 80.0 , 8.444 , 2.037 81.0 , 8.118 , 2.193 82.0 , 7.752 , 2.360 83.0 , 7.340 , 2.540 84.0 , 6.874 , 2.736 85.0 , 6.340 , 2.949 86.0 , 5.720 , 3.183 87.0 , 4.981 , 3.445 88.0 , 4.063 , 3.741 89.0 , 2.813 , 4.085 89.5 , 1.906 , 4.283 90.0 , 0.000 , 4.505 RAIL: Width , Bottom , Deck 11.00 , 0.000 , 0.000 10.98 , -0.131 , 0.179 10.95 , -0.206 , 0.282 10.90 , -0.288 , 0.398 10.80 , -0.397 , 0.559 10.70 , -0.475 , 0.680 10.60 , -0.535 , 0.779 10.40 , -0.623 , 0.941 10.20 , -0.684 , 1.072 10.00 , -0.726 , 1.182 9.80 , -0.755 , 1.277 9.30 , -0.792 , 1.469 8.80 , -0.800 , 1.614 8.30 , -0.800 , 1.726 7.80 , -0.800 , 1.815 7.30 , -0.800 , 1.885 6.30 , -0.800 , 1.984 5.30 , -0.800 , 2.043 4.30 , -0.800 , 2.075 3.30 , -0.800 , 2.091 2.30 , -0.800 , 2.098 1.30 , -0.800 , 2.100 0.30 , -0.800 , 2.100 0.00 , -0.800 , 2.100
Hey Gene, Just wondering why you use Walker instead of Clark or the other brands of blanks?>>> hey ramon, for every comet i’ve made i used the walker 8’3".
hey ramon, for every comet i’ve made i used the walker 8’3". allright!..i was hoping you would show up and chime in. my compliments on your beautiful work, and a great web site too! P.S. would i be able to buy the fin from you? to get a clark blank home to miami i have to drive up to palm beach. anyone know if and where walker blanks may be found in south or central FL?
hey Noodle, it is really generous of you to work these dimensions out for me! i fully understand how to interpret and apply the outline/rocker matrix. the rail matrix is another story though. can you explain the sequences, their order, and how to transfer these to the blank ? by the way, your dimensions are essentially what i wanted. 18" nose, 22.75" max at 3" fwd of center, and 15.25" tail. thank you, and did i say thank you!
You’re welcome. The rail matrix takes a mid-board cross section. The rail width column is in inches. Zero is at the center line (stringer). The negative bottom column and positive deck column are also in inches. Just measure out and over. The width column has the rail (11" out) at the top because that’s as far as I’ve gotten with programming so far. I forgot to mention that the nose and tail are both very slightly pointed. If you were using outline templates, they would turn perpendicular to the stringer 0.4" past the center line. Good luck!>>> hey Noodle, it is really generous of you to work these dimensions out for > me! i fully understand how to interpret and apply the outline/rocker > matrix. the rail matrix is another story though. can you explain the > sequences, their order, and how to transfer these to the blank ? by the > way, your dimensions are essentially what i wanted. 18" nose, > 22.75" max at 3" fwd of center, and 15.25" tail. thank you, > and did i say thank you!
Finally figured out what’s probably stumping you on the rail matrix. Vertical zero is at the rail vertical tangent. The “bottom” numbers are below that, while the “Deck” numbers are above that.>>> hey Noodle, it is really generous of you to work these dimensions out for > me! i fully understand how to interpret and apply the outline/rocker > matrix. the rail matrix is another story though. can you explain the > sequences, their order, and how to transfer these to the blank ? by the > way, your dimensions are essentially what i wanted. 18" nose, > 22.75" max at 3" fwd of center, and 15.25" tail. thank you, > and did i say thank you!
thanks very much Noodle, your answer has me thinking about taking the > 7’11"R and taking the entire 5" of length off of the nose end. > tail rocker would remain within your ballpark. i think you may have typo’d > the 7’11"R’s nose rocker… i’m looking at 6.1875"…and if > i’m right, cutting only from the nose should bring that rocker into range > (hopefully not beyond). let me know if i’m overlooking something here. ok? I am always mystified that someone can describe a rocker in 10,000th of an inch incriments. Do you use a dial indicator or feeler guages to get this close? Does humidity or temperature effect the rockers and cause them to move. I have metrics on one side of my tape, but it is in centimeters. What is the reference point to measure from? How do you determine it to be the balance point to measure from? Are the tips of nose and tails set on a level horizon? If you move the blank a small amount does the rocker change?ie more tail less nose? I tried these methods, but gave up. What is the standard? As you see, I am yanking your legs, but look and feel is just as important and this is a site primarily dedicated to novice shape/designers and they could never assimilate these kind of figures and put them to a practical use. I NEVER measure rockers, it either looks right or it doesn’t. Noses are seldom in the water, the tails do all the work. I use a jillion different blanks, all with some kind of variation. Visualize the board while riding, create a rocker that works for you and don’t worry about the numbers, there’s too many of them and they make my brain hurt anyway. To infinity and beyond!!! http://www.JimtheGenius@aol.com
Amen Jim!!