chips everywhere

Hardware

• CNC 3040-DQ Router / amazon
  • doc
  • 3x[NEMA23] stepper motor

• 3040 CNC Milling Machine Mods

• similar hardware

Spindle

• Moteur à broche 200w Moteur à courant continu
• Vitesse de rotation 0 ~ 8000 tr / min (contrôle de vitesse en continu PWM)
• mandrin ER11
• Collet 1..7mm par pas de 0.5mm
• End Mill 2-Flute fish (downcut)

QtDragon

QtDragon is build upon the QtVCP framework which allows to easy customisation. It displays a .ui file built with Qt Designer screen editor and combines this with Python programming to create a GUI screen for running a CNC machine.

QtVCP is completely customizable: you can add different buttons and status LEDs etc., or add Python code for even finer grain customization.

• QTDragon operation notes

Start procedure

1. [ESTOP SET] (F1) -> [ESTOP REST]
2. [MACHINE OFF] (F2) -> [MACHINE ON]

Then machine can be controlled.

Notes -additional keys are recognised:

• F12 - Style Editor
• Home - Home All Joint of the Machine
• Escape - Abort Movement
• Pause - Pause Machine Movement

see also

• QtDragon

Computer-Aided Manufacturing (CAM)

2.5D work

• F-engrave
  • Celtic Compass - CNC engrave using F-engrave
  • V-Carve Inlay Using F-Engrave

3D Work

• PyCam - is a toolpath generator for 3-axis CNC machining. It loads 3D models in STL format or 2D contour models from DXF or SVG files. The resulting G-Code can be used with LinuxCNC or any other machine controller.
• CAELinux

• CAMotics - Open-Source Simulation & Computer Aided Machining

• MeshCAM
• FreeMill
• CamBam

Fraises

• La défonceuse : je vous dis tout (ce que je sais) sur les fraises
• La défonceuse : La fraise à surfacer

Linux CNC config / github

• - Create a LinuxCNC Configuration
  • - manual check each axis
  • - hook jogdial to this config
  • - Understand Homing - [x] - Identify Limits switch
    • - Repair broken limits
  • - review motor speed / feedrate?
• - Control spindle
• - define a tool
• - cut something

Your config folder should look like this:

~/linuxcnc/configs/cnc3040dq/
├── cnc3040dq.ini
├── cnc3040dq.hal
├── custom.hal
└── other support files (icons, tool tables, etc.)

Parallel port configuration 🚧

Default setup produced by XYZ is okhish, and allows to validate that each axis is addressable, but orientation or affectation may need to be tune.

LPT1 Parallel Port DB25 Connector TBD

Pin	Signal	Function
1	X Step	Pulse for X axis
2	X Direction	Dir for X axis
3	Y Step	Pulse for Y axis
4	Y Direction	Dir for Y axis
5	Z Step	Pulse for Z axis
6	Z Direction	Dir for Z axis
7	A Step (if used)
8	A Direction
10	Limit/Home X	Input
11	Limit/Home Y	Input
12	Limit/Home Z	Input
13	E-Stop	Input
14	Spindle On	Output
16	Spindle CW/CCW
17	Enable	Output
18-25	Ground

Homing & Limits switch

Each axis has it’s own home switch. The home switch also acts as a minimum limit when home isn’t being used. 3 input pins are used. Active low.

Maximum travel limits are combined on all axes in a serial conection. Active low. Only 1 pin is used on the par. port.

see also

• Homing with limit switches in LinuxCNC

Finding endswitch pin

Using halmeter in LinuxCNC. In halmeter, observe the signals named:

• parport.0.pin-10-in
• parport.0.pin-11-in
• parport.0.pin-12-in
• parport.0.pin-13-in
• parport.0.pin-15-in

Manually trigger the end switches one by one. See which of those pins change value (from TRUE to FALSE or vice versa) — that’s your switch input!

see also

• configuration for ChinaCNCzone 3040Z-DQ
• 3040T-DJ 3 axis cnc
  • The value of the microstep for some reason is 2 / You can choose whatever microstep ratio the driver board uses His was obviously 2