mirror of
https://github.com/kennetek/gridfinity-rebuilt-openscad.git
synced 2024-11-29 11:33:56 +00:00
129 lines
3.4 KiB
OpenSCAD
129 lines
3.4 KiB
OpenSCAD
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// height of the base
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h_base = 5;
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// lower base chamfer "radius"
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r_c1 = 0.8;
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// upper base chamfer "radius"
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r_c2 = 2.4;
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// bottom thiccness of bin
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h_bot = 2.2;
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// outside radii 1
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r_fo1 = 7.5 / 2;
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// outside radii 2
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r_fo2 = 3.2 / 2;
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// outside radii 3
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r_fo3 = 1.6 / 2;
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// length of a grid unit
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l_grid = 42;
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// Outside rounded radius of bin
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// Per spec, matches radius of upper base section.
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r_base = r_fo1;
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// Tollerance to make sure cuts don't leave a sliver behind,
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// and that items are properly connected to each other.
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TOLLERANCE = 0.01;
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// ****************************************
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// Magnet / Screw Hole Constants
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// ****************************************
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LAYER_HEIGHT = 0.2;
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MAGNET_HEIGHT = 2;
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SCREW_HOLE_RADIUS = 3 / 2;
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MAGNET_HOLE_RADIUS = 6.5 / 2;
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MAGNET_HOLE_DEPTH = MAGNET_HEIGHT + (LAYER_HEIGHT * 2);
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// center-to-center distance between holes
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d_hole = 26;
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// distance of hole from side of bin
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d_hole_from_side=8;
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// Meassured diameter in Fusion360.
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// Smaller than the magnet to keep it squeezed.
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REFINED_HOLE_RADIUS = 5.86 / 2;
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REFINED_HOLE_HEIGHT = MAGNET_HEIGHT - 0.1;
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// How many layers are between a Gridfinity Refined Hole and the bottom
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REFINED_HOLE_BOTTOM_LAYERS = 2;
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// Experimentally chosen for a press fit.
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MAGNET_HOLE_CRUSH_RIB_INNER_RADIUS = 5.9 / 2;
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// Mostly arbitrarily chosen.
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// 30 ribs does not print with a 0.4mm nozzle.
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// Anything 5 or under produces a hole that is not round.
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MAGNET_HOLE_CRUSH_RIB_COUNT = 8;
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// Radius to add when chamfering magnet and screw holes.
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CHAMFER_ADDITIONAL_RADIUS = 0.8;
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CHAMFER_ANGLE = 45;
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// When countersinking the baseplate, how much to add to the screw radius.
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BASEPLATE_SCREW_COUNTERSINK_ADDITIONAL_RADIUS = 5/2;
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BASEPLATE_SCREW_COUNTERBORE_RADIUS = 5.5/2;
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BASEPLATE_SCREW_COUNTERBORE_HEIGHT = 3;
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// ****************************************
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// top edge fillet radius
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r_f1 = 0.6;
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// internal fillet radius
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r_f2 = 2.8;
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// width of divider between compartments
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d_div = 1.2;
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// minimum wall thickness
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d_wall = 0.95;
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// tolerance fit factor
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d_clear = 0.25;
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// height of tab (yaxis, measured from inner wall)
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d_tabh = 15.85;
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// maximum width of tab
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d_tabw = 42;
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// angle of tab
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a_tab = 36;
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// lip height
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h_lip = 3.548;
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d_wall2 = r_base-r_c1-d_clear*sqrt(2);
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d_magic = -2*d_clear-2*d_wall+d_div;
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// Stacking Lip
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// Based on https://gridfinity.xyz/specification/
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stacking_lip_inner_slope_height_mm = 0.7;
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stacking_lip_wall_height_mm = 1.8;
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stacking_lip_outer_slope_height_mm = 1.9;
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stacking_lip_depth =
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stacking_lip_inner_slope_height_mm +
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stacking_lip_outer_slope_height_mm;
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stacking_lip_height =
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stacking_lip_inner_slope_height_mm +
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stacking_lip_wall_height_mm +
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stacking_lip_outer_slope_height_mm;
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// Extracted from `profile_wall_sub_sub`.
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stacking_lip_support_wall_height_mm = 1.2;
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stacking_lip_support_height_mm =
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stacking_lip_support_wall_height_mm + d_wall2;
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// Baseplate constants
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// Baseplate bottom part height (part added with weigthed=true)
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bp_h_bot = 6.4;
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// Baseplate bottom cutout rectangle size
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bp_cut_size = 21.4;
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// Baseplate bottom cutout rectangle depth
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bp_cut_depth = 4;
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// Baseplate bottom cutout rounded thingy width
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bp_rcut_width = 8.5;
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// Baseplate bottom cutout rounded thingy left
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bp_rcut_length = 4.25;
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// Baseplate bottom cutout rounded thingy depth
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bp_rcut_depth = 2;
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// Baseplate clearance offset
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bp_xy_clearance = 0.5;
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// radius of cutout for skeletonized baseplate
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r_skel = 2;
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// minimum baseplate thickness (when skeletonized)
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h_skel = 1;
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