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(online) Pitch Circle Calculator

Since some folks cannot run the Windows executable version, particularly on mobile devices, here is an online version of the PCD calculator.

To use the Gcode output you will have to copy and paste that section to a text file and save it for your Gcode processor to use.

note that NCplot v1.2 will not draw G91 relative motion correctly

Units:

Note that all values use the 'Units' selection where it applies. For example if Inches is selected all sizes are in Inches, and Feedrate is InchesperMinute, etc.


Radius of PCD
Number of Holes
Hole Mode
Ring of Holes
One big hole
Circle Center
Bottom Left
Center of circle
Start Angle
Drill Diameter
Units
mm
Inch
Gcode: Drill depth below surface
(negative)
Gcode: Retract Height
Gcode: Feedrate
Gcode: Use Drill Cycle
No
Yes

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Last modified: April 26 2026 16:33:38.