1. The problem statement, all variables and given/known data If you could please tell me the "fall" laws for displacement, velocity and acceleration for a cam with constant acceleration. 3. The attempt at a solution Could only manage to find the laws for the rising part, in a 1996 book. Didnt find the laws on google either. Just mentions of the existance of the constant acceleration motion law. The fall is opposite to the rise, but I dont know how to "mirror" the laws. For ex: Displacement: Xe= (Xemax/((1-ki)*(Xi)1^2))*(-ki*(Xi)1^2+2*(Xi)1*Xi-Xi^2) Xe=movement[rad], Xemax=max value for Xe [rad], Xi=current angle of rotation [rad], Xi1=total angle of rotation for rise/dwell or fall. (in this case Rise), k1=point where the "bend" of the curve-in the chart- changes- in my case it is Xemax/2; So, to reverse that, I dont know what I must do... Thank you! And I am sorry if my English isnt very good.. I am from Eastern Europe.