A mount assembly for a mountable device such as a laser unit, such as a hybrid point and line laser that projects a vertical plumb dot(s) up and down, combined with horizontal and plumb projected lines. The mount assembly comprising: a base, a X-axis linear actuator, an upright support, a Y-axis linear actuator, an extension arm, a Z-axis linear actuator, a support plate assembly, and a mount for mounting on the mountable device.