02217443ea
Consolidating seb/saltylab into saltylab-firmware before deleting the seed repo. - 16 OpenSCAD CAD models → cad/ - Design docs (SALTYLAB.md, PLATFORM.md, AGENTS.md, board-viz.html) → docs/
95 lines
3.1 KiB
OpenSCAD
95 lines
3.1 KiB
OpenSCAD
// ============================================
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// SaltyLab — Motor Mount Plate
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// 350×150×6mm PETG
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// Mounts both 8" hub motors + 2020 extrusion spine
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// ============================================
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include <dimensions.scad>
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plate_w = 350; // Width (axle to axle direction)
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plate_d = 150; // Depth (front to back)
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plate_h = 6; // Thickness
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// Motor axle positions (centered, symmetric)
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motor_spacing = 280; // Center-to-center axle distance
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// Extrusion spine mount (centered, 2x M5 bolts)
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spine_offset_y = 0; // Centered front-to-back
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spine_bolt_spacing = 60; // Two bolts along spine
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// Motor clamp dimensions
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clamp_w = 30;
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clamp_h = 25; // Height above plate for clamping axle
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clamp_gap = motor_axle_dia + tol*2; // Slot for axle
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clamp_bolt_offset = 10; // M5 clamp bolt offset from center
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module motor_clamp() {
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difference() {
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// Clamp block
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translate([-clamp_w/2, -clamp_w/2, 0])
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cube([clamp_w, clamp_w, plate_h + clamp_h]);
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// Axle hole (through, slightly oversized)
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translate([0, 0, plate_h + clamp_h/2 + 5])
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rotate([0, 90, 0])
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cylinder(d=clamp_gap, h=clamp_w+2, center=true, $fn=40);
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// Clamp slit (allows tightening)
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translate([0, 0, plate_h + clamp_h/2 + 5])
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cube([clamp_w+2, 1.5, clamp_h], center=true);
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// Clamp bolt holes (M5, horizontal through clamp ears)
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translate([0, clamp_bolt_offset, plate_h + clamp_h/2 + 5])
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rotate([0, 90, 0])
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cylinder(d=m5_clear, h=clamp_w+2, center=true, $fn=30);
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translate([0, -clamp_bolt_offset, plate_h + clamp_h/2 + 5])
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rotate([0, 90, 0])
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cylinder(d=m5_clear, h=clamp_w+2, center=true, $fn=30);
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}
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}
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module motor_mount_plate() {
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difference() {
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union() {
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// Main plate
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translate([-plate_w/2, -plate_d/2, 0])
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cube([plate_w, plate_d, plate_h]);
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// Left motor clamp
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translate([-motor_spacing/2, 0, 0])
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motor_clamp();
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// Right motor clamp
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translate([motor_spacing/2, 0, 0])
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motor_clamp();
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// Reinforcement ribs (bottom)
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for (x = [-100, 0, 100]) {
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translate([x - 2, -plate_d/2, 0])
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cube([4, plate_d, plate_h]);
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}
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}
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// Extrusion spine bolt holes (M5, 2x along center)
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for (y = [-spine_bolt_spacing/2, spine_bolt_spacing/2]) {
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translate([0, y, -1])
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cylinder(d=m5_clear, h=plate_h+2, $fn=30);
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// Counterbore for bolt head
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translate([0, y, plate_h - 2.5])
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cylinder(d=10, h=3, $fn=30);
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}
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// Weight reduction holes
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for (x = [-70, 70]) {
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for (y = [-40, 40]) {
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translate([x, y, -1])
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cylinder(d=25, h=plate_h+2, $fn=40);
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}
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}
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// Corner rounding (chamfer edges)
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// (simplified — round in slicer or add minkowski)
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}
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}
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motor_mount_plate();
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