Geared Desk Clock

door kobaj

Printbare bestanden (12)

Beschrijving

A neat looking 3d printed gear clock for your desk!

You'll need to print:

  • 6x spacers
  • 3x 10 tooth gears
  • 2x 20 tooth gears
  • 2x 18 tooth gears
  • 2x 12 tooth gears
  • 1x 15 tooth gear
  • 2x foot
  • 1x 36 tooth "minute hand" gear
  • 1x 32 tooth "hour hand" gear
  • 1x 12 tooth motor gear
  • 1x motor mount
  • 1x plate

Additionally:

  • 12x nylon washers
  • 8x m4 20mm bolts
  • 8x m4 nuts
  • 6x m4 13mm standoffs round
  • 1x stepper motor (I recommend model 28BYJ-48)
  • 1x stepper motor driving board
  • (Optional) 1x small magnet
  • (Optional) 1x reed switch
  • glue (Super glue works, but I recommend a solvent based glue like "Weld-On 16")

Tools:

  • Screw Driver
  • Pliers
  • Small File

Assembly:

  1. Print all the parts.
  2. Glue together gear sets as specified in ascii_gearsets.txt
    • Note! Don't glue to the metal standoff or to the nylon washer.
  3. Attach the motor using the motormount and its corresponding 12 tooth gear.
    • Note! Put a nylon washer between the gear and the plate.
    • Note! You can mount the motor from the front or from behind, pick your favorite.
  4. Screw the clock face to the plate as shown in the pictures.
    • Note! Don't pinch the nylon washer between metal standoff and the plate.
  5. Screw the remaining gear sets to the plate.
  6. Push the feet into place.
  7. Attach power, and make the motor run at 3 revolutions per hour.
  8. Done!

Optional:

  1. Mount the reed switch so it is triggered by the magnet.
  2. Write code to adjust your motor speed when the reed switch is triggered.
  3. Make sure reed switch is triggered once every 12 hours.

Tips:

  • Depending on your printer you may need to size up or down the gears by 1%.
  • Additionally you may want to file the mounting holes for the gears.
  • You want a nice frictionless rotation of all gears around the standoffs and with each other.

Where to get stuff:

Helpful resources:

FAQ:

  • I see a circuit board and code in your pictures, can I have their source?
    • Not at this time, sorry.
  • What was this designed with?
    • Autodesk Fusion 360.

Tags

#3dprintable #clock #faceless clock #Gear