YACS Yet Another CNC-cut Spirograph cnc/laser
Description
This Is **Yacs**, **Y**Et **A**Nother **C**Nc-Cut **S**Pirograph. As A Specialty It Uses **Hypocycloidal** (Round) **Teeth** Which Allows Optimized Machining On A Cnc, As The Tooldiameter Has No Problems On Small Teeth Like With The Sharp Edges Of Involute Gears. Furthermore I Added Not Only Holes, But Three Triangles On Each Planet Gear. This Results In Interesting Shapes. As A Gearset I Decided To Use 48, 50 And 52 Teeth For The Sun Gear And 39, 40 And 42 Teeth For The Planet. This Results In 9 Different Rosettes:  My Build Was Done On A Desktop Cnc-Machine By [Stepcraft](Https://Www.Zenziwerken.De/My-Cnc) Using A Spiral-Toothed 1.2 Mm Flute. I Used Pertinax I Got From As A Donation From A Reader. This Material Is Perfect For The Task: It'S Hard, Extremely Smooth And Can Be Machined Well. Be Sure To Cut The Inner Wheels First! A Laser Cutter Might Be A Good Alternative Tool To Create Smaller Versions. Please Be Aware That The Stl-File Is Not Tested. It'S For Viewing Only. Visit Https://Www.Zenziwerken.De/En/Spielsachen For More Toy Designs.
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