In the PARTdesigner variables are used, which in turn are usually components of formulas. The formulas of complex constructions are in turn very extensive, so that syntactical errors or superfluous characters can creep in, for example. Such formulas can be "tidied up" using various types of optimization.

	Note
	Especially with frequent mirroring and turning of a part, it is advisable to make use of the formula optimizer [Formula optimizer]. Otherwise, terms would be extended with every action and could reach the maximum permitted number of characters of 256 .