Acu-Rite CNC 3500i User Manual

4 Tool Management

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Entry moves allow a smooth transition into a contour. Allowing a 
way to avoid areas you do not want to affect with the tool when 
entering a contour, Entry Move button (G36). If an entry move 
without compensation is required, program a tool with “0” radius.

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Four types of entry moves are available. Refer to Line Tangent Entry 
Move, Line Perpendicular Entry Move, Arc Tangent Entry Move and 
Line Arc Tangent Entry Move.

In a line tangent entry move the tool approaches the contour in a line 
move tangent to the first move of the contour.

The tool feeds from the current position to a calculated point based on 
the Length (L) parameter then feeds to the compensated starting 
point of the contour in a line move tangent to the first move of the 
contour. The direction of the entry move can be reversed by 
programming a negative Length (L). All programmed Z movements 
occur during the entry move (G41 Xx Yy Zz G36 Q1 Ll).

The line tangent exit move is executed the same as the entry, but in 
reverse order (G37 Q1 Ll).

In a line perpendicular entry move the tool approaches the contour in 
a line move perpendicular to the first move of the contour.

The tool feeds from the current position to a calculated point based on 
the Length (L) parameter then feeds to the compensated starting 
point of the contour in a line move perpendicular to the first move of 
the contour. The direction of the entry move can be reversed by 
programming a negative Length (L). All programmed Z movements 
occur during the entry move (G41 Xx Yy Zz G36 Q2 Ll). 

The line perpendicular exit move is executed the same as the entry, 
but in reverse order (G37 Q2 Ll).