chopsticks.frink

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/** This program makes chopsticks with polygonal sides for 3-D printing.  A
    Japanese TV show said that 5-sided or 7-sided chopsticks were more
    comfortable in the hand.  This basiclaly tests the extrusion of a tapered
    polygon for 3D printing.
*/


polygon = newJava["frink.graphics.Point2DFloatList"]

sides = 7
sideAngle = circle/sides
angle = 90 deg  // Point at top

outerRadius = 9 mm / 2
tipRadius = 3.4 mm / 2
length = 9 in

res = 254/in

for i = 1 to sides
{
   x = outerRadius cos[angle] res
   y = outerRadius sin[angle] res
   polygon.addPoint[x,y]
   angle = angle + sideAngle
}

v = callJava["frink.graphics.VoxelArray", "extrudeZTapered", [polygon, 0 in res, length res, outerRadius/outerRadius, tipRadius/outerRadius]]

v.projectX[undef].show["X"]
v.projectY[undef].show["Y"]
v.projectZ[undef].show["Z"]

filename = "Chopsticks${sides}x" + format[length, in, 1] + "od" + format[2 outerRadius, mm, 1] + "id" + format[2 tipRadius, mm, 1] + ".obj"
print["Writing $filename..."]
w = new Writer[filename]
w.println[v.toObjFormat["chopsticks", 1/(res mm)]]
w.close[]
println["done."]


Download or view chopsticks.frink in plain text format


This is a program written in the programming language Frink.
For more information, view the Frink Documentation or see More Sample Frink Programs.

Alan Eliasen was born 19346 days, 22 hours, 47 minutes ago.