It's About Time

2014-10-26 19:52 If we build a clock from parts made from a 3D printer, is that legal? The clock will be powered by an non-electric oscillator.

Per General Rule 1, yes it is allowed. As long as it complies to all other event rules, general rules, and the official Science Olympiad Building and Tools policy found at A 3D printer is no different from any other workshop tool such as a table saw or drill press.

2015-02-15 15:31 Would a buret (as used in titrations) be considered a "commercial counter?" Or would using a buret violate the rules for It's About Time in any way?

No, a buret is not a commercial counter and is legal for competition.