CAD/Guillotine/frame.scad

frame_depth = 3.3;
stock_inset_height = 0.5;
stock_inset_depth = 1.0;

header_width = 45.0;
header_height = header_width * 0.15;
footer_width = header_width * 1.0;
footer_height = header_height * 1.0;
riser_width = header_width * 0.1;
riser_height = header_height * 6.0;
stock_width = header_width * 0.67;
stock_height = stock_width * 0.67;
stock_foot_height = footer_height * 1.0;
neck_radius = stock_width / 5;

header_riser_offset = ((header_width - stock_width) / 2) - riser_width;

module stock_surface(surface_depth) {
	translate([stock_height / 2, 0, surface_depth]) {
		cube([stock_inset_height, stock_width, stock_inset_depth + clean_buffer]);
	}
	translate([0, 0, surface_depth]) {
		cube([stock_height, stock_inset_height, stock_inset_depth + clean_buffer]);
	}
	translate([0, stock_width - stock_inset_height, surface_depth]) {
		cube([stock_height, stock_inset_height, stock_inset_depth + clean_buffer]);
	}
}

module stock(stock_translate) {
	translate(stock_translate) {
		difference() {
			cube([stock_height, stock_width, frame_depth]);
			translate([stock_height / 2, stock_width / 2, -clean_buffer]) {
				cylinder(h = frame_depth + (clean_buffer * 2),
					r1 = neck_radius, r2 = neck_radius);
				}
			stock_surface(frame_depth - stock_inset_depth);
			stock_surface(0 - clean_buffer);
		}
	}
}

module frame() {
	cube([header_height, header_width, frame_depth]);
	translate([header_height, header_riser_offset, 0]) {
		cube([riser_height + stock_height + stock_foot_height, riser_width, frame_depth]);
		translate([0, stock_width + riser_width, 0]) {
			cube([riser_height + stock_height + stock_foot_height, riser_width, frame_depth]);
		}
	}
	stock([header_height + riser_height, header_riser_offset + riser_width, 0]);
	translate([
		header_height + riser_height + stock_height + stock_foot_height,
		(header_width - footer_width) / 2,
		0
	]) {
		cube([footer_height, footer_width, frame_depth]);
	}
}