Typically speed depends on how much material the object uses, the complexity and the build quality. For small, low-fi object it could take 10 minutes. For somet

Typically speed depends on how much material the object uses, the complexity and the build quality. For small, low-fi object it could take 10 minutes. For something the size of a baseball, it's probably about an hour or so, but for the largest FDM (this style of 3D Printing) machines it's been known to take days on really big builds. On other commercials machines, like SLA/SLS, that use lasers to quickly build material, they're more based about how tall the part is when it's built and the detail required. Small business wouldn't be based around just printing - this is really tough. You're really going to need to offer other value-adds to actually make money as small plastic 3DP parts are basically a commodity at this point.