3D printed mechanical Clock with Anchor Escapement
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PLA from £6 inc. UK delivery on letter-sized prints. We slice, print on a calibrated Creality K2 / Bambu A1, QC and post.
This mechanical clock demonstrates that 3d-printing is not just for decoration. It's possible to create intelligent, living things.
The clock has an anchor escapement, and a balance-wheel with a spiral spring. The clock shows Seconds, Minutes, and Hours. The winding has a nested planetary gear, which allows that the clock continues to run, while winding up.
Everything is 3d-printed (even the spiral spring), except e few small screws, some metal pins, the cord, and the lead for the weight.
This video shows the clock and the building process (actually with a simpler ratchet-winding):
http://youtu.be/HgZBPYJ2Y-w
Designed with Blender. PLA printed with Rapman 3.2.
Some parts require a loose clearance (hollow shaft for hours and minutes), other parts require a press fit (hands). The 3d-files are optimised for older printers with more inaccuracy in xy, or a badly guided z axis. I.e. when printed with a newer generation printer, parts are most likely too loose. In order to compensate this, the material flow could be increased (over-extrusion). In Simplify3d there is another useful parameter: "process settings / advanced / other / horizontal size compensation".
Pins:
- 1 x Balance wheel: 1.5mm diameter, 40mm length
- 1 x Escape wheel: 2.0mm diameter, 28mm length
- 1 x Reduction gears: 2.0mm diameter, 60mm length
- 1 x Drum Transmission: 3.0mm diameter, 60mm length
- 1 x Drum Axis: 3.0mm diameter, 60mm length
- 1 x Crank transmission: 3.0mm…
