Working Slot Machine (Print-In-Place)
Description
***Please support me by using Printables.org!*** If you want to support me, please download and(!) like [this slot machine](https://www.printables.com/model/282185-working-slot-machine-print-in-place) on printables and have a look at all [my designs there](https://www.printables.com/social/13788-makkuro/models). If there are enough downloads&likes, i might get a spool of great prusa filament for free :-). There will also be the latest version from now on (as Thingiverse downloads are a bit broken at the moment) You can find the latest slot machine there. ***The slot machine:*** This is a working slot machine. It has a spring to spin two lucky wheels. Use the feet on the back to display the slot machine on your desk, so people will pick it up and play. Print it as a toy for your kids, grandkids, or present it to friends as a gift. Use it as a permanent display on your desk. See it [in action](https://www.youtube.com/watch?v=nBfrZv6sZqY)! ***Printing*** - Print it without supports and as oriented in the STL. (The face of the slot machine should point down towards the print bed.) - Use standard settings and 0.2mm layer height. - The slot machine is fully print-in-place: No assembly required, just remove the slot machine from the print bed and play! - The slot machine is designed for easy printing, so bed adhesion should not be an issue. - The spring is 3D printed, and works well also if you print in PLA. - You can change colors at 0.6mm and 1mm to have the multicolor look like in the picture above. ***Models included*** - Office Version: This is the version shown in the pictures. Title is “big win”, the wheel symbols are: "7","Dollar","Time","Bell","Croissant","Star". - This is good for your office desk: If visitors get twice “croissant”, go have a break. If they get the clock, take your time to talk to them. - Dice Version: Title “Crabs”, two wheels with dice from 1-6 each. - Slots Version: Title “Slots”, two wheels with each a diamond, 7, star, blocking sign,dollar, bell ***How to play*** - Pull the ball (with the arrow down) and let go. The wheels will turn. When they both show the same result in the middle, you have won! ***Design of the in-line spring*** After the [print-in-place cannon](https://www.printables.com/model/231584) which had a vertially printed spring, i wanted to make a horizontally printed spring which doesnt break. Two principles turned out to be crucial (after a lot of test prints): - Springiness: The best spring action was in the rounded parts, so i made the round part as long as possible (270 degrees) and shortened the straight parts. Thats is what defines the “funny look” of the springs. - Spring attachment: The spring was breaking off where it was attached to the slot machine body. The reason was that the spring was not printed in one line together with the slot machine, but rather afterwards (As the slicer was optimizing the tool path). - This can be avoided by “embedding” the spring artificially into the slot machine, with the right amount of air gap. By using this trick, the spring was properly fusing with the remaining slot machine and was no longer breaking off. I added a “cap” and “bottom” on top of the embedded spring, so you cannot see the spring on the surface of the slot machine. ***Troubleshooting*** In case the spring is not sliced well please try slicing with PrusaSlicer version 2.5.0 or later.
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