![]() ![]() When machine reaches position you store it with: “Machine/Capture & Measure Points/Capture/Store Position Point”: Insert coordinate of reference point into MDI and hit enter, machine will move to entered position: Reference points coordinates will be stored and later loaded into transformation matrix table. ![]() Reference points are basically coordinates which are later used in transformation process, where bottom layer is transformed so that is “synced”(mirrored and aligned) with the top layer. 3.) Drill and store reference pointsĪs already mentioned earlier, reference points should be positioned somewhere on the board where they would not distract the drilling/milling process. To set working offset from machine menu: “Machine/Offset/Current/XY” or click on the icon from toolbar. This area represents the PCB layout as also a surface of measuring area. Working XY offset should be set in the origin of cross-hatching area(see image below). For this tutorial we positioned reference points on the outskirts of the copper board(see image below). So when you will be setting offset XY=0 position, take into consideration where reference points will be drilled and where actual PCB milling will take its place in relation to XY=0. Reference points should be drilled at such coordinates where they would not interfere with milling, drilling and measuring of a surface. Since we are making a double sided PCB, we will use reference points for the needs of transformation, therefore we will need slightly bigger board. The copper board should always be little bigger than the actual PCB layout. You can use a vise, double sided tape, vacuum board or even screws to attach the board on the machine table. Steps for milling a double-sided PCB are as follows:Ĥ.) Measure the surface of the board (“Warp”)ġ.) Turn around the copper board and mount it to machine tableġ2.)Clear Copper TOP layer 1.) Mount copper board to machine table Since tutorial for single sided PCB’s already describes the gerber and drill files import parameters in detail, we suggest that you read that tutorial first to clear out some facts regarding parameters and procedure itself.īecause we will capture reference points coordinates with a camera, camera offset needs to be set. ![]() Gerber and drill files should be generated with correct parameters. This tutorial will help you with production of double-sided PCB’s with your CNC machine.īefore you start, please be sure that machine is properly set-up and calibrated. MILLING DOUBLE SIDED PCB’S WITH CNC USB CONTROLLERS ![]()
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