GRBL-Plotter

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A GCode sender for GRBL under windows, using DotNET 4.0 (should also work with Windows XP)
Written in C# VisualStudio 2022.
For use under Linux check this description by metzger100: GRBL-Plotter-Linux

If you like GRBL-Plotter, show it to me with a small donation :-)

Check History

Check the Wiki for further information

Program is free and you can use it at your own risk,
as you understand there is no warranty of any kind.

Zip folder contains application files as generated by VisualStudio: GRBL-Plotter/bin/release.

GRBL-Plotter Vers. 1.7.4.0 2024-08-18

Requirements for compiling

VisualStudio 2022
DotNET 4.0

Feature list:

Import/Export:

Several options to translate Pen Up/Down
- controlling a Z axis
- controlling a RC-Servo
- controlling a laser
- user defined commands
- Create GCode absolute or relative (for further use as subroutine)
Ruler and import units can be switched between mm or inch
GCode import via file load, drag & drop or copy & paste
- Loading GCode with optional replacement of M3 / M4 commands (helpful for 'Laser Mode' $32=1)
SVG graphics import via file load, drag & drop (also URL) or copy & paste - tested with Inkscape generated SVGs
- optional resize to fixed size
- optional output of nodes only (generating drill holes for string art Video 'String Art' )
- optional sorting of paths by used color
- optional tool change
- if text needs to be imported, convert text into path first
DXF graphics import via file load, drag & drop (also URL) - tested with LibreCAD generated DXFs
- few entities are missing
Drag tool compensation
HPGL graphics import via file load, drag & drop
Drill file import via file load, drag & drop
Gerber file import (rough implementation) via file load, drag & drop
CSV file import via file load, drag & drop
Image import via file load or drag & drop
GCode can be edited and saved
Recent File List (Files and URLs)
Export / import machine specific settings (Joystick, Buttons)

GCode creation:

Create Text from hershey or windows system font
- own created 'Dot Matrix' font Video 'Dot Matrix'
Create simple shapes
Create Barcode and QR-Code
Create GCode via tool extensions

Import options:

Process pen-width as Z-depth
Process circle radius as dot (optional with Z-depth)
Modify paths for drag knife
Add angle information for tangential axis
Add hatch fill to closed paths
Repeat closed path for a small distance (for laser cutter)
Group code by graphic-properties: layers, colors, pen-widths
Tile the graphic

GCode manipulation:

Transformation of GCodes (scale, rotation, mirror, zero-Offset)
any A,B,C,U,V,W commands will stay in place.
Transformation via camera teaching
Axis Substitution for Rotary Axis
Radius compensation
Convert to polar coordinates (X=radius, Y=angle)

Machine control:

Height map, auto leveling
Probing dialog
Individual commands via user defined Buttons
Joystick like control in user interface
support of no-name USB GamePad / Joystick
Optional usage of a WebCam with separate coordinate system: graphics overlay of the current GCode, set zero point, measure angle, zoom, teaching
- Shape recognition for easier teach-point (fiducial) assignment
- Transforming GCode with camera aid, to match drill file with PCB view Wiki 'PCB drilling'

Flow control:

Supporting subroutines M98, M99 Sub-Program Call (P, L)
Internal variable to support probing, e.g.:
- G38.3 Z-50 (probe toward tool length sensor, stop on contact - because of deceleration stop-pos. is not trigger-pos.)
- G43.1 Z@PRBZ (Offset Tool with value stored on trigger of sensor switch)
- examine SerialForm.cs for implementation
Progress notification via email or pushbullet

GRBL:

Automatic reconnect on program start
Supporting GRBL 1.1 (and 0.9 also)
Check for 30 kHz max. step-pin frequency
Supporting new GRBL 1.1 features
- Jogging
- Feed rate override
- Spindle speed override
- real time display GRBL states (in COM CNC window)
Check limits of GRBL setup - max. STEP frequency and min. FEED rate in COM CNC window
Controlling a 2nd GRBL-Hardware
Supports 4th axis (A, B, C, U, V or W). Status and control (special GRBL version needed)

My test bed

On my german homepage: my XYZ platform

GRBL-Plotter in tool change action

Screenshots

Main GUI GRBL-Plotter GUI

Separate serial COM window(s) - one for the CNC, one for the tool changer (or 4th axis)
GRBL-Plotter COM interface 2nd GRBL control

Setup import / GCode conversion
GRBL-Plotter Setup1.1 Setup import / GCode conversion
GRBL-Plotter Setup1.2 Setup import / GCode conversion
GRBL-Plotter Setup1.3 Setup import / GCode conversion
GRBL-Plotter Setup1.4