To assemble you need 2 pieces of shell cap.stl and 1 of the others. You will need glue. The spinning top assembly is really straight foward. First glue Tip.stl to Body.stl, then glue both to Ring.stl and lastly Top.stl. The launcher assembly is a little bit more complicated, but not hard. 1- Attach Gear.stl to Shell.stl (DO NOT USE GLUE) 2- Attach Attach.stl to Gear.stl. You can use glue in this step to ensure it won't fall. 3- Attach the two pieces of Shell Cap.stl to the Shell.stl. Only use glue after you complete the next step. 4- Use the Cord.stl to make sure the launcher is working. 5- Return to step 3 and glue the two pieces of Shell Cap.stl 6- Glue the Shell Front Cap.stl and the Handle.stl to the Shell.stl All done

If you are left handed, you might want to mirror the launcher so you can hold it better, however, pay attention to the rotation of the spinning top. I made it rotate in a way that the "spikes" wouldn't hurt anybody if it hits body parts. If you mirror the launcher, you should also mirror the Ring.stl

The holes in the body of the spinning top are meant for the user to increase the weight with any material the person sees fit. For spinning tops, if you distribute more weight to the shaft, the faster it spins and, the more weight to the whorl, the longer it spins.

All parts need support, except body.stl, ring.stl and top.stl All parts were designed with FDM printers in mind.

It can be a little tricky to launch the toy from a height, especially because it takes some time to get used to attaching the spinning top to the launcher. It's not as simple when compared to products available at children's stores.

I must also remind everyone that this print has small parts that can fall of the toy, so it's not appropriate for small children.

You can modify and sell the printed result.