Template Creating Program

Good idea! I have to make a 9’8" rounded pintail set of templates for a board for a friend, I’ll give the handsaw a shot. I have the same experience with my jigsaw, and I end up ‘walking the template’ with a block plane and then sanding block for what seems like forever to get the wiggles out…

Just got through lamming a 9’0" with a bulletproof 6x6x6 deck and 6x6 bottom (by request) for a friend’s wife. Turned out well, but the epoxy started getting really gummy before I finished. It takes me a while to lam, but they turn out well even if it takes me around 30-40 mins. No bubbles!

JSS

Haavard,

I know what you mean, crazy hips, classic Longboards with that funky super wide tail and realitively narrow nose, stingers, ect. I like that kind of stuff too, and I know they are fun to ride. The idea I had of a mathmatically smooth outline is just a begining point. I think ambrose said it well (ok maybe not well, kinda confusing, but got the right point…

Quote:
add to template library

create variations with alternative set ups

modify at will

accumulating panels since 1969

1/2 templates since 1985?90?

When I first wanted to shape a board I felt confident with my tool-handling-skills, but wasn’t so sold on the “nails and stick” method of template making. I felt that copying an old board would be better. Looking back, I think if I just had a good way of making a nice smooth curve (not so much the actual cutting part, but coming up with the curve) I could manipulate that curve to what I wanted (or thought I wanted), change tail shape or pinch the nose alittle. With trying different curve combinations I could build my “template library.” And that is what I’ve done. I definatly don’t belive that a “mathmatically correct/smooth” template would create the perfect board, but I do feel that those who wish to build a “template library” would definatly benifit from a few nice curves to start from.

Computers are great and very powerfull, but in the end, they don’t ride the wave. There is too many variables involved and too much inconsistancy in conditions to computerize surfing. Viva handshapers, Viva craftsmen! Viva those with imagination!

Well one thing is for sure: God made the circle and the ellipse, but all those eyeballed curves are made by men. . . I know who I trust the most !

Funny how you guys assume that mathematically perfect curves can’t be used to create a perfect surfboard… . . whereas mathematically imperfect curves can. . . THAT is weird.

Anyway this thread is about using computers to create templates, NOT how to do it with nails and splines.

Ambrose you hijacked the thread, and everyone now follows obediently.

:frowning:

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TomBloke and Reverb have pointed out my concern. aps3000 works just like illustrator and relies on “the eye” to make sure a curve is smooth (pure). I was thinking more like a surfboard algorithm ([i.e.] a mathematically correct template) based on basic surfboard dimension inputs. Tom, I am interested in you arc formulas.

If you browse through the catalog of say, rusty, CI, Lost, etc. you will find that there are a number of templates that are nowhere near ‘mathematically correct’ ( or rather mathematically smooth). They still work (some might say very well), so why would you want a mathematically correct template?

regards,

Håvard

Because Because Because Because. . . . Because of the Wonderful things they does !

Sorry that some of use follow God rather than Rusty or Lost !

:slight_smile:

Mathematically perfect curves are not limited to conic sections, though. I bet some of the ‘imperfect curves’ fit some higher order polynomial or other mathematical functions, and linked together, conic section segments can give you some beautiful shapes, like the fibonacci spiral…made of simple arc segments…

Check it out…It’ll be the the graphic on the board I am working on now, with the quarter-circle sections in different colors.

On the other hand, if I could make accurate and fair curves to begin with, I’d be very satisfied with that…

I use Excel to take data points I like (mainly from pictures I see online), and use it to fit a higher order polynomial to it for my templates, then I use the polynomial to chart measurements I then transfer to hardboard for templates.

Do you use other curves as well as ellipses and circles? The rest of the conic sections? Hyperbolas, Parabolas? All the conics have pretty simple formulas, making them easy to use.

JSS

The trouble with parabolas and hyperbolas as that they don’t finish parallel at the base so they don’t lend themselves to complete closed curves unless ‘fudged’. … . they could be fun for fin planshapes though.

I’m still under the impression that an ellipse isn’t a conic section though. . . an ellipse is a cylindrical section.

The ovoid egg like shapes ( cartesian ovals ) . . . which are also conic sections could be interesting too, here’s a site with a gadget for playing with cartesian ovals, and some instructions for drawing them by hand:

http://chickscope.beckman.uiuc.edu/explore/eggmath/shape/descartes.html

:0

I see what you mean about parabolas and hyperbolas. Ellipses can be had both as conic sections and cylindrical sections, but are mainly lumped into the conic sections in math texts.

I’ll have to check the site out on cartesian ovals…thanks!

JSS

Check out http://www.shape3d.com/

The trial version is free, but it only lasts a little while.

I gave it a quick look a while ago, I seem to recall they have a thing that tells you how “true” the curve you are making is.

Not sure if it’s what you guys are after, but it might help.

Kit

thank you for the recognition roy.

Jacking wasnt the point

the point of course

is speaking up for the hands on

reality of a tooling program

that doesn’t hold the process out of reach

of the old and keyboard challenged

or the young and disinfranchised.

the proclivity for elitism that has pervaded

in the ''Shapers school"

is the smoke and mirrors

stuff that are computer based design apps.

the ‘Ultimate term’’ in our contemporary society

happens to be ‘‘computer based design’’'*

Carrying with it the sacrocynct aura

that communism carried with it in the 1950’s

political witch hunts

or the 1920 1930’s “Germs”

iin morphing an aware ness

to sanitation.

the counterpoint of my mention

of hand methods being the final

call any way is a theme I have injected in every

stilted ''I know ‘’ back slapping sessions

I have been privy to be allowed to observe at a safe distance

in this the land o’swaylaholia.

glad I am that you are entertained for a moment.

and the domain of cgd

will not likely turn its gaze

for long as the intoxication

induced by computer programme

design is the addictive insubstantiate.

the imperfct curve made perfect

is the act of fine tuning the rail

keyboards dont turn rails

as well as the human hand

backing abrasive paper.

and the final judge is still the eye and hand.

computer generated perfection

only seems to be god like.

the circle and the curve were created by a cave man with a stick at the beach

who went on to try to con others that god made it,with his help.

god’s perfection is illuminated by imperfection.

perfection is a gogooplex,add a zero.

the thread literally about template creating program

alows for other than steve and bill screening

to alternative perspective

steve and bill are the bud -jim beam

and not

the dr’bob and bill W’

of the computer fixated world view

abstinate by pointed design

from a long line of alchoholics

obstinate by genetics

My father was a catholic machinist

your frirnd

…ambrose…

  • see george orwell 'ultimate terms in contemporary rhrtoric"

Yeah whatever Ambrose, after 10 years of gigantic string and wire compasses which wobble in the wind I’m happy to calculate the circular arcs by crunching numbers with a calculator. . . that doesn’t make me a communist, in fact I’m a Royalist as you know.

Please make you next post without the aid of a computer, just to keep yourself honest.

Cheers

:slight_smile:

why use a string and a wire

when I could template a hand shape eyball job from last month?

nice to see we are awake at the same time.

Good day master roy.

…ambrose…

Loyalists are a special group

If It wasn’t for this blue campfire

I wouldnt have been inspired

to learn to type

or to have met Ya’all

and communist is a word abused by partisans

to line their pockets

calculators with twwooo many buttons are confounding

crunching numbers is for when

you don’t have a board to shape

or glue up.

computers are a half step to board making

as well as to communication.

crunched numb ers are swell

round rails are parabolix personified.

…ambrose…

i’ll have a parabola cola

sure is nicce typing with ya roy.

electrical impulses for sale a buck apiece

Http//www.glossy deriere.org//simulated-sincerity.cognition/capitalism.org

Don’t let it bother you Ambrose, I just like circular arcs, and they can’t be eyeballed.

The computer is just another tool, and might even have been used to create your favourite planer !

:slight_smile: