9g Servo Operated Cartridge Case Dropper

thingiverse

Thanks to Wombatordnance for the solenoid actuated design but the servo he used was over $50 shipped to the USA and the closest solenoid i could find that could work would have made the housing significantly larger. See his design for the cartridge case pilot inserts. So I revised both the lever and the housing to use a small 9g size servo motor to operate the drop lever. The pivot for the lever is now a plain hole to tap 1/4-20 threads and has a #6-32 cross hole to use a set screw on the 1/4-20 pivot screw. I also used 2 very thin mylar washers on both sides of the lever to reduce sliding surface area. The servo mounting holes are plain as well for M3 tapping. There is a rectangular hole in the mounting face of the housing to route the servo wire back into the box this will be mounted. The linkage bar is simply a 0.043" (1.1mm) piece of tig welding rod bent with approx 50mm between attachment points (not critical). Note: I will be using this with a 1kw induction heating coil and used nylon screws for the lever pivot and set screw. The servo should be far enough away to not induce heating in the servo mount screws or gearset (time will tell). Printed in ApolloX ASA without supports at 0.3mm layer height and 0.6mm nozzle. Servo I'm using : https://www.amazon.com/gp/product/B07NV476P7/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1