diff options
Diffstat (limited to 'chess')
| -rw-r--r-- | chess/bishop.scad | 54 | ||||
| -rw-r--r-- | chess/demo.scad | 35 |
2 files changed, 86 insertions, 3 deletions
diff --git a/chess/bishop.scad b/chess/bishop.scad new file mode 100644 index 0000000..07667e1 --- /dev/null +++ b/chess/bishop.scad @@ -0,0 +1,54 @@ + +// FIDE Standards have some flexibility +// https://www.fide.com/FIDE/handbook/Standards_of_Chess_Equipment_and_tournament_venue.pdf +// FIDE Handbook C.02.2.2 Height,weight,proportions +// - King – 9.5 cm, +// - Queen – 8.5 cm, +// - Bishop – 7 cm, +// - Knight – 6 cm, +// - Rook – 5.5 cm and +// - Pawn – 5 cm. +// - The diameter of the piece's base should measure 40- 50% of its height. +// - These dimensions may differ up to 10% from the above recommendation, +// - but the order (e.g. King is higher than Queen etc.) must be kept. +// We are going to transgress C.02.2.3 +// FIDE Handbook C.02.3.2 Size of the square and the board +// - The side of the square should measure 5 to 6 cm. +// - Referring to 2.2 the side of a square should be at least twice the diameter of a pawn’s base (it means four paws on one square). + +$fn = 100; +total_height = 7; +base_diameter = total_height / 2; +base_radius = base_diameter / 2; +base_height = 1; +stem_radius = base_radius / 4; +stem_base_radius = base_radius / 2; +head_radius = 1; +stem_height = total_height - base_height - head_radius; + +// collar_check enables collar +collar_check = 1; +collar_radius = head_radius * collar_check; + +// Base +cylinder(base_height/2, base_radius, base_radius); +translate([0, 0, base_height/2]) + cylinder(base_height, base_radius, 0); + +// Stem +translate([0, 0, base_height]) + cylinder(stem_height, stem_base_radius, stem_radius); + +// Collar +translate([0, 0, total_height - (2 * head_radius)]) + cylinder(0.5, collar_radius, 0); + +// Head + +%translate([0, 0, total_height - head_radius]) + sphere(head_radius); + +translate([0, 0, total_height - head_radius]) + cylinder(head_radius, head_radius, 0); + + diff --git a/chess/demo.scad b/chess/demo.scad index fb0ed95..341da35 100644 --- a/chess/demo.scad +++ b/chess/demo.scad @@ -1,3 +1,32 @@ -rotate_extrude (angle = 90) { - square(1); -}
\ No newline at end of file +// https://youtu.be/tOx5UI8GGns + +$fn = 8; + +function bezier_3(p0, p1, p2, t) = + (( 1 - t) ^ 2) * p0 + + 2 * (1 - t) * t * p1 + + (t ^ 2) * p2; + +function bezier_4(p0, p1, p2, p3, t) = + (( 1 - t) ^ 3) * p0 + + 3 * ((1 - t) ^ 2) * t * p1 + + 3 * (1 - t) * (t ^ 2) * p2 + + (t ^ 3) * p3; + +p0 = [0, 0]; +p1 = [10, 0]; +p2 = [0, 10]; +p3 = [0, 5]; + +points = $fn; + +points_list = [for (i=[0:points]) bezier_3(p0, p1, p2, i/points)]; + +rotate_extrude(angle = 360) + polygon(points_list); + +points_list_2 = [for (i=[0:points]) bezier_4(p0, p1, p3, p2, i/points)]; + +translate([20, 0, 0]) + rotate_extrude(angle = 360) + polygon(points_list_2); |