Thank you for viewing! (´∀｀)♪ I'm introducing a kit with a special gear mechanism that's fun to play with. It's a great value set that combines three gear mechanisms!! ① Geneva drive mechanism ② Planetary gear mechanism ③ Bevel gear mechanism Note: The LEGO blocks in the photo are for demonstration purposes. They are not included. The way you combine them is based on your own ideas. It's recommended for junior high school students and older to assemble it alone. If you combine it with LEGO blocks like in the photo, you can connect the three gear mechanisms! The combinations are up to your creativity! (*-`ω´-)９ Basically, you'll learn by assembling the separate parts, but of course, we can also provide each gear as a finished product (^^) Touching the wisdom of the past might help you with rich ideas!? ★ Materials: ABS resin, made with a 3D printer ★ Color: Red We can accommodate other colors, color-coding for each part, etc., as much as possible. Color-coding is +100 yen per color. ★ Can be attached to blocks. ★ By connecting the planetary gear and bevel gear, you can convert the drive shaft's vertical and horizontal directions, and by outputting to the Geneva drive, a system is completed that performs intermittent rotation where the gear stops and rotates! It seems like it can also be used to make a gacha-gacha-like device! Please comment if you want a finished product. In addition, the shafts are attached using a press-fit method. When inserting, it's at the level of finger strength, but when removing, if you make a mistake in how you apply force, there is a risk of damage, so in the case of a finished product, please consider it non-disassemblable. We will provide separate simple assembly instructions for each gear. There are no bevel gears (_ _) Also, we will deliver the bevel gears as a finished product. In the case of standard mail, HOPPEN will cover the shipping costs.