// The Estes A8-3 and C6-7 motors have diameter of 17.7 mm,
// length 69.5 mm. The Estes Alpha launch pad has rod diameter 3.4 mm.
// The Estes A8-3 and C6-7 motors have diameter of 17.7 mm,
// length 69.5 mm. The Estes Alpha launch pad has rod diameter 3.4 mm.
// protrusions to hold the main tube in place
for (a = [60, 180, 300]) {
rotate([0, 0, a]) {
// protrusions to hold the main tube in place
for (a = [60, 180, 300]) {
rotate([0, 0, a]) {
translate([0, 0, motor_len - segment_overlap - 2*thick_wall])
cylinder(r1 = motor_diam/2 + thin_wall, r2 = motor_diam/2, h = thick_wall + eps);
};
translate([0, 0, motor_len - segment_overlap - 2*thick_wall])
cylinder(r1 = motor_diam/2 + thin_wall, r2 = motor_diam/2, h = thick_wall + eps);
};
- for (a = [60, 180, 300]) rotate([0, 0, a])
+ for (a = [0, 120, 240]) rotate([0, 0, a])
translate([motor_diam/2 + 2.5, 0, -eps])
cylinder(r = 3, h = infty);
};
translate([motor_diam/2 + 2.5, 0, -eps])
cylinder(r = 3, h = infty);
};
module central_tube_solid() {
cylinder(r = motor_diam/2 + thick_wall, h = central_tube_h);
module central_tube_solid() {
cylinder(r = motor_diam/2 + thick_wall, h = central_tube_h);