Parameters are used to define a sketch and easily edit it later on. It is basically using a smart dimension but that can be used over and over again.

Parameter is located under modify

E.g. a thickness for a slot would be material_thickness – (2*laser_cutter_kerf)

+ addition

– subtraction

% floating point modulo

* multiplication

/ division

^ power

( following BIDMAS

) following BIDMAS

; delimiter for multiargument functions

Slop and security – Range is about 0.1mm – as in the millennial furniture project with the dovetail slots