Felipe M.
676ffe37c5
New lib/skadis-board generator produces a parametric IKEA Skadis-compatible pegboard panel (40mm grid + 20mm offset grid), with standard and dense density modes that both stay accessory-compatible. New raskog-separator project: a customizable RASKOG cart divider whose vertical wall is a Skadis panel, standing on an inverted-T magnetic foot. Magnets glue into pockets that open at the bottom of the flange wings so they sit flush against the basket's steel mesh; size/count/rows configurable.
219 lines
9.9 KiB
OpenSCAD
219 lines
9.9 KiB
OpenSCAD
// ============================================
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// RASKOG Magnetic Skadis Separator
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// ============================================
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// A customizable divider for the IKEA RASKOG cart. The vertical wall is
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// itself an IKEA Skadis pegboard panel, so real Skadis accessories hang on
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// the divider. It stands on a wide magnetic foot whose magnets grab the
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// steel wire-mesh floor of the RASKOG basket to hold the divider in place.
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//
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// The Skadis hole pattern comes from the shared lib/skadis-board generator
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// (40mm grid + 20mm offset grid), with selectable standard/dense density —
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// both stay compatible with off-the-shelf Skadis accessories.
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//
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// Magnets are glued into pockets that open at the BOTTOM of the foot's two
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// flange wings, so each magnet sits flush against the steel mesh for the
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// strongest hold. Pick bigger/more magnets for an even stronger grip.
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//
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// Print standing exactly as modeled (foot flat on the bed, wall up) — it is
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// support-free apart from the few-mm ceiling each magnet pocket bridges over.
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// Use a brim for the tall thin wall if your printer needs one.
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//
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// RASKOG basket interior (measured at the floor; walls taper inward):
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// bottom 288 x 405, middle 284 x 397, top 278 x 389 mm.
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// The default wall_width spans the short axis with clearance for the taper.
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//
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// Coordinate system:
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// Origin (0, 0, 0) = center of the foot footprint, on the basket floor.
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// X = wall length (along the basket axis being divided)
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// Y = thin direction (foot width + wall thickness)
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// Z = up
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use <../lib/skadis-board/skadis-board.scad>;
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// ============================================
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// CUSTOMIZABLE PARAMETERS
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// ============================================
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/* [Separator Wall] */
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// Wall length (X, mm). Default spans the RASKOG short axis with clearance.
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wall_width = 270; // [40:1:400]
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// Skadis board height above the foot (Z, mm)
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wall_height = 80; // [40:1:200]
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// Board thickness (mm). Keep ~5 for Skadis accessory compatibility.
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wall_thickness = 5.0; // [4:0.1:6]
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// Hole pattern: standard Skadis checkerboard, or denser full 20mm grid
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wall_density = "dense"; // [standard, dense]
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// Slot short axis (Skadis nominal 5mm)
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wall_slot_width = 5.0; // [4:0.1:8]
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// Slot long axis (Skadis nominal 15mm)
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wall_slot_height = 15.0; // [10:0.1:25]
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// Countersink at each slot mouth (mm); 0 = sharp slot
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wall_edge_chamfer = 1.0; // [0:0.1:3]
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// Outer board corner radius (mm)
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wall_corner_r = 4; // [0:0.5:15]
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/* [Magnetic Foot] */
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// Foot flange total width (Y, mm) — the wide base that resists tipping
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foot_flange_w = 34; // [12:1:80]
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// Foot flange height (Z, mm) — must contain the magnet pocket + floor
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foot_flange_h = 6; // [3:0.5:20]
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// Central neck width (Y, mm) — must be >= wall_thickness
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neck_w = 6; // [3:0.5:20]
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// Top of the neck where the wall begins (Z, mm)
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foot_height = 12; // [6:1:40]
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// Chamfer on the foot's bottom edges to avoid an elephant-foot lip (mm)
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foot_edge_chamfer = 1.0; // [0:0.1:4]
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// Concave fillet where the neck meets the flange top (mm) — strength
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join_fillet_r = 2.0; // [0:0.5:8]
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// How far the wall base sinks into the neck for a solid union (mm)
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merge_overlap = 3; // [1:0.1:8]
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/* [Magnets] */
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// Magnet disc diameter (mm)
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magnet_diameter = 6; // [3:0.5:20]
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// Magnet disc height/thickness (mm)
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magnet_height = 3; // [1:0.5:6]
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// Magnet rows: 2 = one per wing (default, anti-tip), 1 = single offset row
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magnet_rows = 2; // [1, 2]
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// Magnets along the foot in each row
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magnet_per_row = 6; // [1:1:30]
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// Radial clearance around each magnet (glue gap, mm)
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magnet_fit_clear = 0.2; // [0:0.05:0.6]
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// How far the magnet sits above the bottom face (mm) — 0 = flush with the
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// foot bottom for the strongest grip; raise to recess/protect the magnet
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magnet_recess = 0.0; // [0:0.1:3]
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// Distance from the foot ends to the first/last magnet (mm)
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magnet_inset = 18; // [5:1:80]
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/* [Resolution] */
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$fn = 64;
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// ============================================
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// DERIVED DIMENSIONS
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// ============================================
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foot_length = wall_width; // foot runs the full length of the wall
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hf = foot_flange_w / 2; // flange half-width (Y)
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nf = neck_w / 2; // neck half-width (Y)
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pocket_r = magnet_diameter / 2 + magnet_fit_clear;
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// Y of each magnet row: centered in the wing region that is clear of the
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// neck-to-flange fillet, so the magnet never collides with the fillet.
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wing_center_y = (nf + join_fillet_r + hf) / 2;
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wall_z = foot_height - merge_overlap; // board base Z (sunk into the neck)
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total_height = wall_z + wall_height; // overall part height (info)
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// ============================================
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// PARAMETER VALIDATION
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// ============================================
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assert(wall_width > 0 && wall_height > 0, "wall_width and wall_height must be positive");
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assert(wall_thickness >= 4 && wall_thickness <= 6,
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"wall_thickness should be ~5mm for Skadis accessory compatibility");
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assert(foot_flange_w > neck_w, "foot_flange_w must be greater than neck_w");
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assert(neck_w >= wall_thickness, "neck_w must be >= wall_thickness so the wall seats on the foot");
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assert(foot_height > foot_flange_h, "foot_height must be greater than foot_flange_h (the neck rises above the flange)");
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assert(magnet_recess >= 0, "magnet_recess must be non-negative");
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assert(foot_flange_h >= magnet_recess + magnet_height + 0.8,
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"foot_flange_h too small: needs magnet_recess + magnet_height + >=0.8mm cap above the magnet");
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assert(magnet_diameter > 0 && magnet_height > 0, "magnet dimensions must be positive");
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assert(magnet_rows == 1 || magnet_rows == 2, "magnet_rows must be 1 or 2");
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assert(magnet_per_row >= 1, "magnet_per_row must be >= 1");
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assert(magnet_fit_clear >= 0, "magnet_fit_clear must be non-negative");
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assert(wing_center_y - pocket_r >= nf + join_fillet_r,
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"magnet pocket overlaps the neck/fillet — widen the flange or shrink the magnet");
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assert(wing_center_y + pocket_r <= hf - foot_edge_chamfer - 0.5,
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"magnet pocket too close to the flange edge — widen the flange or shrink the magnet");
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assert(2 * magnet_inset < foot_length, "magnet_inset too large for the foot length");
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assert(magnet_per_row == 1
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|| (foot_length - 2 * magnet_inset) >= (magnet_per_row - 1) * (magnet_diameter + 2 * magnet_fit_clear + 2),
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"not enough foot length to fit magnet_per_row pockets without overlap");
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assert(merge_overlap > 0 && merge_overlap < foot_height && merge_overlap < wall_height,
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"merge_overlap must fit within both the neck and the wall");
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assert(foot_edge_chamfer >= 0 && 2 * foot_edge_chamfer < foot_flange_w
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&& foot_edge_chamfer < foot_flange_h,
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"foot_edge_chamfer must fit within the flange");
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assert(join_fillet_r >= 0 && join_fillet_r <= (foot_flange_w - neck_w) / 2
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&& join_fillet_r <= (foot_height - foot_flange_h),
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"join_fillet_r must fit within the flange-to-neck step");
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// ============================================
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// MAIN ASSEMBLY
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// ============================================
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separator();
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module separator() {
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union() {
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magnetic_foot();
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translate([-wall_width / 2, -wall_thickness / 2, wall_z])
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skadis_board(
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width = wall_width,
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height = wall_height,
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thickness = wall_thickness,
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density = wall_density,
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slot_w = wall_slot_width,
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slot_h = wall_slot_height,
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edge_chamfer = wall_edge_chamfer,
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corner_r = wall_corner_r);
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}
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}
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// ============================================
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// COMPONENT MODULES
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// ============================================
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// Inverted-T foot: a wide flat flange (the basket-floor footprint) with a
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// narrow central neck the wall seats on. Magnet pockets are subtracted from
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// the flange wings. Built by extruding the Y-Z cross-section along X.
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module magnetic_foot() {
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difference() {
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rotate([90, 0, 90]) // map 2D (u,v) -> (Y, Z); extrude along X
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linear_extrude(height = foot_length, center = true)
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polygon(_foot_profile(
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hf = hf, nf = nf, ch = foot_edge_chamfer,
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fh = foot_flange_h, th = foot_height, jf = join_fillet_r));
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magnet_pockets();
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}
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}
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// 2D cross-section of the foot in the Y-Z plane (first coord = Y, second = Z).
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// Symmetric inverted-T: chamfered bottom flange + concave fillets where the
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// vertical neck meets the flange top.
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function _foot_profile(hf, nf, ch, fh, th, jf, n_arc = 12) =
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let (
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// Left inside fillet: flange top (z=fh) up to neck wall (Y=-nf).
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left_fillet = [
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for (i = [0 : n_arc])
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let (a = -90 + 90 * i / n_arc)
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[(-nf - jf) + jf * cos(a), (fh + jf) + jf * sin(a)]
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],
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// Right inside fillet: neck wall (Y=nf) down to flange top (z=fh).
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right_fillet = [
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for (i = [0 : n_arc])
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let (a = 180 + 90 * i / n_arc)
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[(nf + jf) + jf * cos(a), (fh + jf) + jf * sin(a)]
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]
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)
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concat(
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[[-(hf - ch), 0], [-hf, ch], [-hf, fh]],
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left_fillet,
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[[-nf, th], [nf, th]],
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right_fillet,
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[[hf, fh], [hf, ch], [hf - ch, 0]]
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);
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// Glue-in magnet pockets: vertical bores opening at the BOTTOM of the flange
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// wings. The magnet is glued in from below, seating against the pocket
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// ceiling magnet_recess above the bottom face; the solid cap above it is
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// what the print bridges over.
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module magnet_pockets() {
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rows_y = (magnet_rows == 2) ? [-wing_center_y, wing_center_y] : [wing_center_y];
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for (y = rows_y)
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for (x = _magnet_x_positions())
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translate([x, y, -1])
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cylinder(h = magnet_recess + magnet_height + 1, r = pocket_r);
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}
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// Evenly spaced magnet X positions within the inset span (centered if one).
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function _magnet_x_positions() =
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let (span = foot_length / 2 - magnet_inset)
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(magnet_per_row == 1)
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? [0]
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: [ for (i = [0 : magnet_per_row - 1]) -span + 2 * span * i / (magnet_per_row - 1) ];
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