Mechanical Tally Counter 4.0

myminifactory

READ BEFORE PRINTING! First of all, this is a non-commercial print, this means you are not allowed to sell files or prints of this model. ___________________________________________________________________________________________ This is my fourth attempt on creating a mechanical tally counter. It's adjusted so anyone with a reasonably dialed in 3D-printer will be able to print it. There are some non-printable parts but they should be easy to find at home, in any hardware store or as in my case, the grocery store. I said earlier that I wouldn't continue developing this project... I was wrong. Here's a link to version 5:https://www.myminifactory.com/object/3d-print-mechanical-tally-counter-5-0-174640___________________________________________________________________________________________ Videos and assembly instructions: How to use the counter: Assembly instructions:Demo on the mechanism: ___________________________________________________________________________________________ Troubleshooting: Heres a list of problems and some possible solutions. If your problem isn't in the list please let me know what the problem is so I (depending on the problem) can add it. ------------------------------------------------------- Problem: My buttons stick when I press them down. Solution 1: Clean your prints from any brims etc. Solution 2: The pen springs you used might be too weak. Solution 3: Loosen the screw on the back of the back case, you might have over tightened it. ------------------------------------------------------- Problem: The Dials move but doesnt align with the window on the front case. Solution: Make sure you followed the dial assembly step is correctly. Clean your prints from any brims etc. and loosen the screw. The pin spring is too weak, try swapping it with another spring or a longer spring piece. The Ratchet Wheel and Ratchet Wheel Bottom are pressed together too tightly, redo that step of the assembly. ------------------------------------------------------- Problem: The first digit dial turns when I press down the button, but turns back again when I release the button. Solution: The rubber band is way too strong. The ratchet arms doesn't fold on their way back, which means the pin slips. Change to a rubber band which is barely in tension when assembled. ------------------------------------------------------- Problem: The mechanism is sticky specifically when the second digit dial is supposed to turn. (e.g. from 19 to 20). Solution: The 4 Tooth Partial Gear and Gear Lock isn't pushed all the way down. ------------------------------------------------------- Problem: The buttons are loose. Solution 1: The pen springs used for the buttons might be too short. Solution 2: The tab on the back cover which compresses the spring has broken off.