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wip on magnet side wall connector

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This commit is contained in:
zhao
2023-01-27 13:20:20 -05:00
parent 8e39e45514
commit 92c6ab6982
2 changed files with 54 additions and 20 deletions
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7
helper/math.scad
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@ -13,9 +13,8 @@ function mirror4XY(midpoint, offsetX, offsetY) =
module align(a,b) { module align(a,b) {
//echo("a", a);
echo("a", a); //echo("b", b);
echo("b", b);
rot_axis = cross(a,b); rot_axis = cross(a,b);
if (rot_axis == [0,0,0]) { if (rot_axis == [0,0,0]) {
@ -25,7 +24,7 @@ module align(a,b) {
//echo("rot_axis", rot_axis); //echo("rot_axis", rot_axis);
angle = acos(a*b/(norm(a)*norm(b))); angle = acos(a*b/(norm(a)*norm(b)));
echo("angle", angle) //echo("angle", angle)
rotate(v=rot_axis, a=angle) rotate(v=rot_axis, a=angle)
children(0); children(0);

57
rack/sideWallConnector.scad
View File

@ -1,15 +1,23 @@
include <./config.scad> include <./config.scad>
include <../helper/screws.scad> include <../helper/screws.scad>
include <../helper/halfspace.scad>
include <../misc/magnet.scad>
sideWallConnectorSlotWidth = 7; sideWallConnectorSlotWidth = 7;
sideWallConnW = 7; sideWallConnW = 7;
sideWallConnD = 20; sideWallConnD = 20;
sideWallConnLugDepression = 2; sideWallConnH = 2;
sideWallConnLugDepression = sideWallConnH;
yBarScrewHoleToOuterYEdge = 3.5; yBarScrewHoleToOuterYEdge = 3.5;
yBarScrewHoleToFrontXEdge = 16; yBarScrewHoleToFrontXEdge = 16;
magnetFaceToSideWallConnOuterYEdge = 2;
magnetCenterToSideWallConnOuterXYFace = magnetRSlacked + 1;
magnetMountExtraRadius = magnetRSlacked + 1;
module sideWallConnector_N() { module sideWallConnector_N() {
translate(v = [0, 0, -sideWallConnLugDepression]) translate(v = [0, 0, -sideWallConnLugDepression])
cube(size = [sideWallConnW, sideWallConnD, sideWallConnLugDepression]); cube(size = [sideWallConnW, sideWallConnD, sideWallConnLugDepression]);
@ -19,27 +27,54 @@ module sideWallConnector_N() {
} }
module sideWallConnectorMagnet() { module sideWallConnectorMagnet() {
difference() {
applyYBarScrewMount()
applyMagnetMount()
base();
module base() {
intersection() {
cube(size = [sideWallConnW, sideWallConnD, sideWallConnLugDepression]); cube(size = [sideWallConnW, sideWallConnD, sideWallConnLugDepression]);
// TODO: pattern for this? beef up mirror4XY?
cVal = 0.5;
halfspace(p=[0,cVal,0], vpos=[0,1,1]);
halfspace(p=[cVal,0,0], vpos=[1,0,1]);
halfspace(p=[sideWallConnW-cVal,0,0], vpos=[-1,0,1]);
halfspace(p=[0,sideWallConnD-cVal,0], vpos=[0,-1,1]);
}
}
module applyYBarScrewMount() {
apply_n() {
translate(v = [yBarScrewHoleToOuterYEdge, yBarScrewHoleToFrontXEdge, sideWallConnLugDepression]) translate(v = [yBarScrewHoleToOuterYEdge, yBarScrewHoleToFrontXEdge, sideWallConnLugDepression])
counterSunkHead_N(rackFrameScrewType, headExtension=eps,screwExtension=inf10); counterSunkHead_N(rackFrameScrewType, headExtension = eps, screwExtension = inf10);
children(0);
}
} }
translate(v = [0, 5, 6]) // TODO: clean up
rotate(a = [0, 90, 0]) module applyMagnetMount() {
apply_p() {
difference() { difference() {
hull() { hull() {
cylinder(r = magnetRSlacked + 1, h = magnetHSlacked+1); translate(v = [0, 4, magnetMountExtraRadius+sideWallConnH])
translate(v=[5,0,(magnetHSlacked+1)/2]) rotate(a = [0, 90, 0])
cube(size=[eps, 2*(magnetRSlacked+1),magnetHSlacked+1], center=true); cylinder(r = magnetMountExtraRadius, h = sideWallConnW-magnetFaceToSideWallConnOuterYEdge);
translate(v = [0, 0, sideWallConnH])
cube(size = [sideWallConnW-magnetFaceToSideWallConnOuterYEdge, 2*magnetMountExtraRadius, eps]);
} }
translate(v=[0,0,1])
translate(v = [sideWallConnW-(magnetFaceToSideWallConnOuterYEdge+magnetHSlacked), 4, 6])
rotate(a = [0, 90, 0])
cylinder(r = magnetRSlacked, h = magnetHSlacked); cylinder(r = magnetRSlacked, h = magnetHSlacked);
} }
//cylinder(r = magnetRSlacked, h = magnetHSlacked); children(0);
}
}
} }
module sideWallConnectorHinge() { module sideWallConnectorHinge() {