1. Start your 3D print of "Paddle_final.stl" 2. Print out "Template_bracket" and glue or transfer "TEMPLATE 1:1" to a small piece of aluminum sheet, I used 1 mm. Cut, drill and bend. 3. Assemble the bracket and paddle using 2 M3 screws, you can cut threads or just let the screws do it. 4. Unplug the saw for this step! Remove the two upper screws holding the switch to the casing. Slide the bracket part behind the switch and refit the screws. freecad > slic3r 0.35 20% > prusa i3 mk2 PLA And you'll need 2 M3 screws.