Test Jig #3 – Hours & Minutes Clock 3D Printer Model

Author: @
License: CC BY-SA
File formats: stl,scad
Download type: zip
Size:1.2MB

The file 'Test Jig #3 – Hours & Minutes Clock 3D Printer Model' is (stl,scad) file type, size is 1.2MB.

Summary

This is the current release candidate for the Printable Clock Project. Many thanks to the many Thingiversians who have contributed over the last few weeks!

It is a work in progress and probably will need tweaking to even tick, let alone keep time. It currently has breakage issues in PLA, ABS is recommended.

Test Jig #2 was a major milestone, passing all four tests, featuring in the first video of a ticking printed escapement for this project ( http://www.prototribe.net/vidplay/testjig2.html )and serving as a development base for improvements from multiple Makers. If you want to print something that ticks, print Test Jig #2 with all the latest parts.

Test Jig #3 is intended to regroup all that progress into a new base camp for what we hope is the final push: an actual printed clock that keeps time. If you want to spend plastic and time in support of that goal, print Test Jig #3 and share with us what went right and what went wrong.

This current design is based on feedback from early adopters ssd, rustedrobot and TheRuttMeister, and in particular a very clever rustedrobot design for a ratcheting drum that rewinds the clock: http://www.thingiverse.com/thing:8555 Special thanks to Renosis for rendering gears 02 thru 07 on his machine last night when mine was not up to the challenge!

I've uploaded a snapshot of the code which generated these parts to this page, but the best place to find the latest and greatest is on github:
https://github.com/syvwlch/Printable-Clock-Project

Major improvements include: the ratcheting drum, countersunk holes for the frame, a snap-fit extendable pendulum, and an escapement design which should tick as printed (little or no hand-finishing required).

I tried to go for a four gear clock, but getting a 60:1 ratio in two gears is just not practical... the pinions get too small. I also went ahead and added hour and minute hands. I can make alternate parts for a hand-less version if the concentric shafts are too much of a problem.

Clock-6G-00-Hands.stl 116.2KB
Clock-6G-01A-Drum.stl 296.7KB
Clock-6G-01B-Ratchet.stl 1.3MB
Clock-6G-02-Pinion.stl 1.5MB
Clock-6G-03-Pinion-FIXED.stl 1.9MB
Clock-6G-04-Pinion-FIXED.stl 1.6MB
Clock-6G-05-Pinion.stl 1.6MB
Clock-6G-06-Pinion.stl 1.7MB
Clock-6G-07-EscapWheel.stl 886.8KB
Clock-6G-10-Escapement.stl 224.3KB
Clock-6G-11-FrontFrame.stl 231.1KB
Clock-6G-12-BackFrame.stl 538.7KB
ClockBuilderScript.scad 43.1KB
ClockParameters-6G-12x60.scad 12.6KB
clockworkLibrary.scad 32.9KB