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NopSCADlib
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Can now override the screw type for a fan assembly.

This commit is contained in:
Chris Palmer 2019-07-19 10:51:59 +01:00
parent de8eb594a7
commit 7b2b239a8b
2 changed files with 5 additions and 5 deletions
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2
readme.md
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@ -620,7 +620,7 @@ Can draw three styles: solid, open frame and open frame with screw bosses.
| Module | Description |
|:--- |:--- |
| ```fan(type)``` | Draw specified fan, origin in the centre |
| ```fan_assembly(type, thickness, include_fan = true)``` | Fan with its fasteners |
| ```fan_assembly(type, thickness, include_fan = true, screw = false)``` | Fan with its fasteners |
| ```fan_hole_positions(type, z = undef)``` | Position children at the screw hole positions |
| ```fan_holes(type, poly = false, screws = true, h = 100)``` | Make all the holes for the fan, or just the aperture if ```screws``` is false. Set ```poly``` true for poly_holes. |

8
vitamins/fan.scad
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@ -151,16 +151,16 @@ function nut_and_washer_thickness(screw, nyloc) = washer_thickness(screw_washer(
function fan_screw_depth(type) = fan_boss_d(type) ? fan_depth(type) : fan_thickness(type);
function fan_screw_length(type, thickness) = screw_longer_than(thickness + fan_screw_depth(type) + nut_and_washer_thickness(fan_screw(type), true)); //! Screw length required
module fan_assembly(type, thickness, include_fan = true) { //! Fan with its fasteners
module fan_assembly(type, thickness, include_fan = true, screw = false) { //! Fan with its fasteners
translate_z(-fan_depth(type) / 2) {
if(include_fan)
fan(type);
screw = fan_screw(type);
nut = screw_nut(screw);
Screw = screw ? screw : fan_screw(type);
nut = screw_nut(Screw);
fan_hole_positions(type) {
translate_z(thickness)
screw_and_washer(screw, fan_screw_length(type, thickness));
screw_and_washer(Screw, fan_screw_length(type, thickness));
translate_z(include_fan ? -fan_screw_depth(type) : 0)
vflip()