![]() They can and have killed people in the past. If you have a lathe and don't know how to use it, don't. I'm going to be brief about machining here because if you have access to a lathe you either know how to use it or have someone nearby who does. Forstner bits do not like holes in the way when drilling so do not drill a pilot hole for them. If using a spade bit do not drill too deep because the point may come out the top of the sphere! Since my sphere was intended for a dolls head it came with a small hole pre-drilled and a flat area. ![]() Forstner bits are pretty smooth drilling so holding it by hand isn't an issue but you may need to explore another way to hold it if you are using a spade bit or similar. Securing the wood can be difficult so what I did was use a roll of tape as a base to keep the ball in place and held it firmly with my hand. Next step is to drill into the center of the flat to a depth of 1.5" as per the drawings in Step 1. Consider where you place the flat based on the wood grain so that it looks nice. This can be done easily on the belt sander or by hand. If you have the ability to do so, I encourage you to make your own! The first step is to add a flat to the knob where the insert will go. I will confess that I bought the wood sphere because the local craft store sells them for $2.30 for use as doll heads, and I do not have the skills or the correct tools to turn my own wood sphere.
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