thingiverse
Arduino NANO Kitchen timer using a stepper motor driven "Rolling Ball Escapement"
Full build details on my web site here http://www.brettoliver.org.uk/Rolling_Ball_Timer/Rolling_Ball_Timer.htm
This is a general purpose kitchen timer.
The timer uses a 3D printed Rolling Ball Escapement from JBV Creative.
This must be purchased seperatly from here https://jbvcreative.com/products/the-rolling-ball-escapement
The original Rolling Ball Escapement was driven by a weight and string pulling on a ratchet gear.
I have replaced the weight with a stepper motor controlled by an Arduino NANO.
Time remaining is displayed on a 8 digit 7 segment LED display along with other functions.
The timer sound is provided by a JQ9500 sound module that can play any MP3 sound files as the timer alert.
Direct link to the original creator's page
Click the "View on thingiverse" button above to visit the original model page on thingiverse. You can download the STL file directly from the creator's page for free.
This STL file is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
Yes, this model is available as a free download on thingiverse. Some creators accept tips or donations.
Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer. Check the license on the original thingiverse page to see if modifications are permitted by the creator.