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Merge branch 'martinbudden-dogbone_xy'

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Chris Palmer 2020-12-22 12:35:35 +00:00
commit ec891c8013
4 changed files with 27 additions and 7 deletions
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6
readme.md
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@ -5511,8 +5511,10 @@ a square cornered part fits in the hole then circles are placed in the corners m
### Modules
| Module | Description |
|:--- |:--- |
| ```dogbone_rectangle(size, r = cnc_bit_r, center = true, xy_center = true)``` | Rectangle with cylinders at the corners |
| ```dogbone_square(size, r = cnc_bit_r, center = true)``` | Square with circles at the corners |
| ```dogbone_rectangle(size, r = cnc_bit_r, center = true, xy_center = true, x_offset, y_offset)``` | Rectangle with cylinders at the corners |
| ```dogbone_rectangle_x(size, r = cnc_bit_r, center = true, xy_center = true)``` | Rectangle with cylinders at the corners, offset in the x direction |
| ```dogbone_rectangle_y(size, r = cnc_bit_r, center = true, xy_center = true)``` | Rectangle with cylinders at the corners, offset in the y direction |
| ```dogbone_square(size, r = cnc_bit_r, center = true, x_offset, y_offset)``` | Square with circles at the corners, with optional offsets |
![dogbones](tests/png/dogbones.png)

6
tests/dogbones.scad
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@ -26,6 +26,12 @@ module dogbones() {
#translate([15, 0])
dogbone_rectangle([10, 20, 5], center = false);
#translate([30, 0])
dogbone_rectangle_x([10, 20, 5], center = false);
#translate([45, 0])
dogbone_rectangle_y([10, 20, 5], center = false);
sq = 3;
translate([-5 + sq / 2 + eps, -10 + sq / 2 + eps])
%cube([sq, sq, 1], center = true);

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tests/png/dogbones.png
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22
utils/dogbones.scad
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@ -23,24 +23,36 @@
//
include <../utils/core/core.scad>
module dogbone_square(size, r = cnc_bit_r, center = true) //! Square with circles at the corners
module dogbone_square(size, r = cnc_bit_r, center = true, x_offset, y_offset) //! Square with circles at the corners, with optional offsets
{
x_offset = is_undef(x_offset) ? r / sqrt(2) : x_offset;
y_offset = is_undef(y_offset) ? r / sqrt(2) : y_offset;
union() {
square(size, center = center);
if(r > 0) {
origin = center ? [0, 0] : size / 2;
offset = r / sqrt(2);
for(x = [-1, 1], y = [-1, 1])
translate(origin + [x * (size.x / 2 - offset), y * (size.y / 2 - offset)])
translate(origin + [x * (size.x / 2 - x_offset), y * (size.y / 2 - y_offset)])
drill(r, 0);
}
}
}
module dogbone_rectangle(size, r = cnc_bit_r, center = true, xy_center = true) //! Rectangle with cylinders at the corners
module dogbone_rectangle(size, r = cnc_bit_r, center = true, xy_center = true, x_offset, y_offset) //! Rectangle with cylinders at the corners
{
extrude_if(h = size.z, center = center)
dogbone_square([size.x, size.y], r, xy_center);
dogbone_square([size.x, size.y], r, xy_center, x_offset, y_offset);
}
module dogbone_rectangle_x(size, r = cnc_bit_r, center = true, xy_center = true) //! Rectangle with cylinders at the corners, offset in the x direction
{
dogbone_rectangle(size = size, r = r, center = center, x_offset = 0, y_offset = r);
}
module dogbone_rectangle_y(size, r = cnc_bit_r, center = true, xy_center = true) //! Rectangle with cylinders at the corners, offset in the y direction
{
dogbone_rectangle(size = size, r = r, center = center, x_offset = r, y_offset = 0);
}