MASSO has eight corner probing cycles: four for inside corners and four for outside corners. Each is an automatic two-stage cycle that finds both X and Y of the corner.

Before you probe

Field / button	What it does
	Inside/Outside switches between inside and outside corner cycles.
	Save Settings applies changes. Any change to probing values or mode only takes effect after you press it.
	Probing Feedrate is the speed of each probing move. Return moves are at rapid speed.
	Probe Diameter must be entered for the result to be correct.
	X Position and Y Position are the work coordinates given to the probed surfaces at the point of contact.
	X/Y Offset compensates for alignment errors, or for a probe that is not directly under the spindle.

Inside corner cycles

On each button, the red dot is the probe start position, the yellow lines are the surfaces being probed, and the dotted white line shows the probing order. After each contact the probe returns to the start position, and at the end it updates the coordinates from both surfaces.

Button	Cycle	1st probe	2nd probe
	−X then +Y	−X	+Y
	+Y then +X	+Y	+X
	+X then −Y	+X	−Y
	−Y then +X	−Y	+X

Outside corner cycles

When outside probing is selected, two distance fields appear at each corner. They set how far the X and Y axes travel around the corner before the second probing move. The red dot is the start position, the yellow lines are the probed surfaces, and the white arrow shows the order and direction of travel.

Each cycle probes the first surface, returns to the start, moves around the corner by the set distances, probes the second surface, then returns to the second start position and updates the coordinates.

Button	Cycle	1st probe	Move around	2nd probe
	+X then −Y	+X	+Y, then +X	−Y
	−Y then −X	−Y	+X, then −Y	−X
	−X then +Y	−X	−Y, then −X	+Y
	+Y then +X	+Y	−X, then +Y	+X