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wip for dovetail join for x-y bar

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zhao
2023-03-22 00:40:25 -04:00
parent bfe262affc
commit 1b9ecd514e
6 changed files with 103 additions and 56 deletions
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8
rack/print/yBar_P.scad
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@ -1,5 +1,11 @@
include <../yBar.scad>
include <../xBar.scad>
// Oriented for 3d printing.
// Supports required at XY wall connections, and depending on roundness
yBar();
yBar();
translate(v=[140,0,0])
rotate(a=[0,0,90])
xBar();

11
rack/xBar.scad
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@ -12,6 +12,7 @@ xBarY = 32;
xBarHeight = 15;
xBarWallThickness = 2;
xBarSideThickness = 6;
xBarRoundness = baseRoundness;
*xBar();
@ -27,8 +28,8 @@ module xBar() {
difference() {
cylindricalFiletEdge(xBarY, xBarX, xBarHeight, xBarRoundness);
translate(v = [xBarWallThickness, xBarWallThickness, xBarWallThickness])
cylindricalFiletEdge(xBarY, xBarX-2*xBarWallThickness, xBarHeight, xBarRoundness);
translate(v = [xBarWallThickness, xBarSideThickness, xBarWallThickness])
cylindricalFiletEdge(xBarY, xBarX-2*xBarSideThickness, xBarHeight, xBarRoundness);
}
// Shave off bottom corners to reduce elephant's foot at where xBar and YBar join
@ -47,11 +48,7 @@ module xBar() {
}
module applyYBarConnector() {
apply_pn() {
mirrorOtherCorner()
rotate(a=[0,0,-90])
yBarConnectorFromXLug();
apply_n() {
mirrorOtherCorner()
rotate(a=[0,0,-90])

66
rack/xyBarConnector.scad
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@ -1,61 +1,43 @@
include <../helper/screws.scad>
include <../helper/dovetail.scad>
include <../helper/halfspace.scad>
include <./config.scad>
//xBarConnectorFromY_N();
module xBarConnectorFromY_N() {
y1 = 6;
y2 = 27;
y = 27;
z = 6;
slack = 0.4;
translate(v = [-m3HeatSetInsertSlotHeightSlacked, y1, z])
translate(v = [-m3HeatSetInsertSlotHeightSlacked, y, z])
rotate(a = [0, 90, 0])
heatSetInsertSlot_N(rackFrameScrewType);
translate(v = [-m3HeatSetInsertSlotHeightSlacked, y2, z])
rotate(a = [0, 90, 0])
heatSetInsertSlot_N(rackFrameScrewType);
}
// TODO fix this up
// TODO need to add slack values
translate(v = [-1, y1+(y2-y1)/2, 0])
rotate(a = [0, 45, 0])
cube(size = [3+slack, 10+slack, 6+slack], center = true);
module xBarConnectorFromY_P() {
rotate(a=[0,0,-90])
dovetail(topWidth = 15, bottomWidth = 12, height = 2, length = yBarHeight, headExtension = 1, baseExtension = 2, frontFaceLength = 0.5,
frontFaceScale = 0.90,
backFaceLength = 5,
backFaceScale = 1.2);
}
module yBarConnectorFromX_N() {
y1 = 6;
y2 = 27;
y = 27;
z = 6;
slack = 0.2;
slack = 0.3;
translate(v = [-inf50/2, y1, z])
translate(v=[-0.5,14,0])
mirror(v=[1,0,0])
rotate(a=[0,0,-90])
dovetail(topWidth = 15+slack, bottomWidth = 12+slack, height = 2+slack, length = yBarHeight, headExtension = 1, baseExtension = 2, frontFaceLength = 0.5,
frontFaceScale = 1.1,
backFaceLength = 5,
backFaceScale = 1.2);
translate(v = [-inf50/2, y, z])
rotate(a = [0, 90, 0])
cylinder(r = screwRadiusSlacked(rackFrameScrewType), h = inf50, $fn = 32);
translate(v = [-inf50/2, y2, z])
rotate(a = [0, 90, 0])
cylinder(r = screwRadiusSlacked(rackFrameScrewType), h = inf50, $fn = 32);
}
// TODO: figure out nice abstraction to apply both positive and negative mods
module yBarConnectorFromXLug() {
y1 = 6;
y2 = 27;
z = 6;
slack = 0.2;
intersection() {
// TODO fix this up, no center=true
translate(v = [-1, y1+(y2-y1)/2, 0])
rotate(a = [0, 45, 0])
scale(v=[0.90,0.95,0.90])
cube(size = [3-slack, 10-slack, 6-slack], center = true);
halfspace(vpos=[0,0,1], p=[0,0,0]);
halfspace(vpos=[1,0,0], p=[-2,0,0]);
}
}

12
rack/yBar.scad
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@ -15,11 +15,6 @@ include <./sharedVariables.scad>
*yBar();
translate(v=[20,0,0])
*stackConnectorPlug();
*stackConnectorSocket_N();
module yBar() {
applyBasePlateConnector()
@ -93,7 +88,12 @@ module yBar() {
}
module applyXBarConnector() {
apply_n() {
apply_pn() {
mirrorOtherCorner()
translate(v=[yBarWidth + 0.5,14,0])
xBarConnectorFromY_P();
mirrorOtherCorner()
translate(v = [yBarWidth+eps, 0, 0])
xBarConnectorFromY_N();