Educational clock

prusaprinters

This is an educational clock to teach the analogue clock. Also interesting for lovers of clockworks or gearboxes ;)Completely printed without supports, no need for glue or screws either!Also fits onto the Prusa mini (: The hour- and minute hands are connected with a two-staged planetary geared clockwork on the back of the clock. Therefore they move in the correct ratio of 1:12. For a full turn of the minute hand, the hour hand will move one hour.This can be done by directly moving the minute hand with a finger, or for a better view onto the clock face, by turning the grip on the backside of the clock.Print specifications of the example in the pictures:PLA, 0.2mm layer height2 perimeters, 20% infillabout 20 hours total print time (normal print mode, with same colour separation as in the pictures, could be faster or slower with more or less filament colours)Assembly:Print all partsAmount of needed parts is in the notes of the files. Step 1: slide the connection pins through the holes of the clock_body and attach the clock_face.make sure the “12” points towards the upward pin. Then slide the hour and minute hand through the middle hole and make sure both hands point towards “12”.Step 2:Place the partly assembled clock with the clock face onto the desk. Make sure that both hands still point towards “12”. Then attach the A_planet_carrier onto the hour_hand.There is a little triangle engraved into the A_planet_carrier. All triangles of all parts must be installed pointing upwards toward “12”Step 3:Install the A_gear_ring and the A_sun_gear, both with the triangle pointing upwards. After that install A_planet_gears.Step 4:Install the B_gear_gring and B_planet_carrier with the triangle pointing upwards.Step 5Place the B_sun_gear with the triangle pointing upwards. Then place the B_planet_gears.Step 6Slide the stand_back over the connection_pins and fix it with the small clips.Step 7Install the grip and fix it with the big clip. Then attatch the stand_bottomFinished- have fun!