add a comment that is all that survived some experimentation

src/components.scad

@@ -45,6 +45,9 @@ lever_mount_x = 53;
 lever_mount_y = 95;
 lever_mount_z = 2;
 
+// standard lever hole
+lever_plate_hole = 12;
+
 // case dimensions
 // base frame box. reminder: top of inside (including mounts) is chopped by top_plate_z for plates
 frame_x = 233;
@@ -52,21 +55,21 @@ frame_y = 208;
 frame_z = 50;
 
 // depth of the "lip" of the frame that the top plate sets into/supports the overhang
-frame_wall = 8;
+frame_wall = 4;
 
 // per neutrik (mm)
 neutrik_panel_thickness = 3;
 
 // top plate, which can either be the whole plate ("inset") or the mounting frame for a plate that overhangs
-top_plate_x = frame_x - frame_wall;
-top_plate_y = frame_y - frame_wall;
+top_plate_x = frame_x - (frame_wall * 2);
+top_plate_y = frame_y - (frame_wall * 2);
 top_plate_z = 5;
 
 // how much the top plate x/y is expanded to overhang the frame
 // note that this is relative to the top plate (so the wall is added back)
-top_plate_overhang_amount = frame_wall + 17;
-overhang_top_plate_x = top_plate_x + top_plate_overhang_amount;
-overhang_top_plate_y = top_plate_y + top_plate_overhang_amount;
+top_plate_overhang_amount = 8.5;
+overhang_top_plate_x = top_plate_x + (frame_wall * 2) + (top_plate_overhang_amount * 2);
+overhang_top_plate_y = top_plate_y + (frame_wall * 2) + (top_plate_overhang_amount * 2);
 
 plate_to_frame_point_x = (top_plate_x/2)-10;
 plate_to_frame_point_y = (top_plate_y/2)-10;
@@ -206,7 +209,7 @@ module levermountbase() {
 // should work with JLF, JLW, LS-32, LS-33, LS-40, LS-55, LS-56
 module levermountholes() {
 	// joystick hole
-	cylinder(r=12, h=5.1, $fn=50, center=true);
+	cylinder(r=lever_plate_hole, h=5.1, $fn=50, center=true);
 	// holes for joystick bolts
 	translate([20, 42.5, 0])
 		m4_hole();
@@ -273,6 +276,7 @@ module top_plate_with_raised_overhang() {
 module frame_box() {
 	difference() {
 		roundedcube([frame_x, frame_y, frame_z], center=true, radius=3);
+		// cut out the middle to make it a box
 		cube([top_plate_x-(panel_support_width*2), top_plate_y-(panel_support_width*2), frame_z+5], center=true);
 	}
 }

src/misc-dustwasher-jlf.scad

@@ -20,7 +20,7 @@ include <components.scad>
 
 module jlf_dustwasher() {
 	difference() {
-		cylinder(r=jumbo_decorative_radius+5+hole_tolerance, h=2, $fn=50, center=true);
+		cylinder(r=lever_plate_hole*decorative_radius_scale, h=2, $fn=50, center=true);
 		// 5.25 = 4.55 (diameter of shaft is 9.10mm) + .25 to let it take an angle
 		cylinder(r=4.8, h=2.1, $fn=50, center=true);
 	}

src/misc-dustwasher-lsx-nobi.scad

@@ -20,7 +20,7 @@ include <components.scad>
 
 module lsx_nobi_dustwasher() {
 	difference() {
-		cylinder(r=jumbo_decorative_radius+5+hole_tolerance, h=2, $fn=50, center=true);
+		cylinder(r=lever_plate_hole*decorative_radius_scale, h=2, $fn=50, center=true);
 		// 5.25 = 5 (diameter of shaft is 10mm) + .25 to let it take an angle
 		cylinder(r=5.25+hole_tolerance, h=2.1, $fn=50, center=true);
 	}