Rolling Ball Clock

prusaprinters

<p>I have included a complete STL of my clock but it is best printed in 4 parts and glued together. The two main parts are the clock face and the tracks. &nbsp;I printed all parts individually at 90% size and 0.2 layer height. &nbsp;That way it would fit my printer bed and enabled a std clock mechanism and 6mm dia steel ball bearing. &nbsp; You must ensure and print marks on the tracks and track walls are gently sanded to reduce friction. &nbsp;The sweeper was the most difficult part to get right so as to reduce friction and push the ball towards the hole, I actually settled for a piece of hardwood shaped and glued to the second hand after a number of attempts. &nbsp;The sweeper should glide just above the clock face and not touch the sides of the track. &nbsp;Likewise pay attention to the positioning of the rear track being smooth and friction free and positioned accurately before final gluing with superglue. &nbsp;My clock still needed a 1 or 2 degree tilt down to the right to work well and works best with a 1 degree tilt backwards at the top. &nbsp;I used a standard clock mechanism but high torque ones are available. &nbsp;I would suggest not using supports as they can be difficult to remove and are really not essential. &nbsp;Numbers for the clock face were cut on a laser from thin material. &nbsp; Alternatively find a picture of a clock face, &nbsp;print and glue on.</p><p>&nbsp;</p><figure class="media"><oembed url="https://www.youtube.com/watch?v=8NmqJEyuSbQ"></oembed></figure>