The blob in all its glory:
This is derived from two spheres next to each other. Maybe it could be the start of a spaceship or camper.
|Click on the snapshot to download the blob's stl file.|
# name of the blob project = "blob53"; # function at origin must be <0, and >0 far enough away. w=0 defines the surface function w = f(x2,y2,z2,c,r) # three lobed toroid with low profile bumps and flat top x = (x2-c(1))/r(1); y=(y2-c(2))/r(2); z=(z2-c(3))/r(3); w=-44.9375-20.5*x.^2+x.^4+4.5*y.^2+2*x.^2.*y.^2+ ... y.^4+4.5*z.^2+2*x.^2.*z.^2+2*y.^2.*z.^2+z.^4; endfunction; c_outer = [0,0,0]; r_outer = [28,28,28]; step = 4; # grid pitch in mm start with 4mm to see the shape quickly. Once you have it just right, change to 2mm for printing xmin = -150; xmax = 150; source("../octave/func2stl_v01.m"); # do all the calculationsGNU Octave