Ceci est une ancienne révision du document !

bCNC - AutoLevel



https://github.com/vlachoudis/bCNC/wiki/AutoLevel https://github.com/vlachoudis/bCNC/wiki/PCB-101-First-time



1.Clean Copperclad PCB with steel wool or equivalent until shiny

If you skip this step, you may damage a tool bit when probing.

2. Clamp Copperclad PCB to waste board

Want PCB to be held down “flat” and secure Double-backed tape works well for some.

3. Mount First Drill bit in Router

4. Roughly locate the Router/bit to starting location and turn on CNC machine power

5. Start bCNC

6. Connect to CNC via bCNC

  • Select File Menu
  • Select Serial Port
  • Click on Open
  • Select Control Menu
  • Click on Unlock
  1. Prepare for Autoleveling
  • Select File Menu
  • Open gcode file for cutout routing - this will make it simple to setup the correct Autolevel area
  • Position bit to X and Y start location using Control widgets.
  • Select Probe Menu
  • Click on Probe Submenu
  • Zero out X and Y by Clicking on X=0 the Y=0
  • Click on “fit to screen” button
  • Lower tool bit within a couple of mm of PCB using jog controls
  • Zero out Z by Clicking on Z=0
  • In Probe menu, Probe section, Set the Z Pos: to -10 - this will allow the bit to go 10mm down to probe before setting off an alarm.
  • ATTACH PROBE CLIPS TO PCB AND TOOL BIT - FAILURE TO DO SO BEFORE PROCEEDING MAY RESULT IN A DAMAGED BIT.
  • Click Probe button (in Probe: section)
  • Zero out Z axis - Click on Z=0
  • Raise Z by 1mm using jog
  1. Autolevel
  • Under Probe Menu, Select Autolevel Submenu
  • Click on Margins - This will configure an autolevel area mapped to you gcode file limits
  • modify number of X/Y test points as needed by adjusting N for X and Y
  • set Z Min to -10 and Z Max to 0.5 - if you expect a large deviation in height across the board, set Z max to a higher value ( and perhaps consider leveling waste board and/or machine)
  • CONFIRM PROBE CLIPS TO PCB AND TOOL BIT - FAILURE TO DO SO BEFORE PROCEEDING MAY RESULT IN A DAMAGED BIT.
  • Click on Scan
  • Return to X/Y zero - in Command: (at bottom) enter G0 X0 Y0
  • Return to Z zero - in Command: (at bottom) enter G0 Z0
  • At top click at “Zero” in menu for Autolevel to adjust measured values (@vlachoudis: why this is required?)
  • REMOVE PROBE CONNECTION TO TOOL BIT.
  1. Load first Drill gcode file
  • Under File menu select Open and select drill file
  • Answer no to the “Probe File modified” dialog
  • Answer no to the “Existing Autolevel” dialog
  • Optional - Select ISO view from “Change viewing Angle” widget.
  1. Perform Drilling operation
  • Confirm that you've REMOVED THE PROBE CONNECTION TO THE TOOL BIT.
  • If manually controlling power to your router, turn it on now.
  • Select Control menu
  • Click on Start.
  • When drilling is complete, if manually controlling power to your router, turn it off.
  1. Change Tool Bit - Do this every time you change a bit, whether it be a drill, routeing, or engraving bit.
  • Raise Z to comfortable height using jog controls.
  • Replace Tool bit
  • ATTACH PROBE CLIPS TO PCB AND TOOL BIT
  • Lower bit to within a couple of mm of PCB using jog controls.
  • Select Probe Menu
  • Select Probe Submenu
  • Zero out Z by Clicking Z=0
  • Click on Probe button
  • Zero out Z by Clicking Z=0
  • Raise Z by 1mm using jog controls.
  • REMOVE PROBE CONNECTION TO TOOL BIT.
  1. If performing more Drilling operations, follow steps 10-12, with final Tool bit change being to the trace routing bit.
  2. Load trace routing gcode file.
  • Under FIle menu select Open and select trace routing gcode file
  • Answer no to the “Probe File modified” dialog
  • Answer no to the “Existing Autolevel” dialog
  • Optional Select preferred viewing angle.
  1. Change Tool Bit per step 11.
  2. Perform Trace Routing operation
  • Confirm that you've REMOVED THE PROBE CONNECTION TO THE TOOL BIT.
  • If manually controlling power to your router, turn it on now.
  • Select Control menu
  • Click on Start.
  • When routing is complete, if manually controlling power to your router, turn it off.
  1. Load Outline routing gcode file.
  • Under FIle menu select Open and select outline routing gcode file
  • Answer no to the “Probe File modified” dialog
  • Answer no to the “Existing Autolevel” dialog
  • Optional - Select preferred viewing angle.
  1. Change Tool Bit per step 12.
  2. Perform outline Routing operation
  • Confirm that you've REMOVED THE PROBE CONNECTION TO THE TOOL BIT.
  • If manually controlling power to your router, turn it on now.
  • Select Control menu
  • Click on Start.
  • When routing is complete, if manually controlling power to your router, turn it off.