Hi, I’m so new that I haven’t managed to make my first proper engraving yet.
I have a few problems and questions that I would appreciate some guidance.
CNC: Sainsmart 4030 pro 500 x 500 mm
Board: PCB, 1 copper layer, total thickness of 1.6 mm
Board size: 300 x 300 mm
Cut depth: 0.1mm
I do my designs in SketchUp then save as PNG.
I import into Easel to generate gcode and then I’m using Candle to mill (as I could not figure out how to use the z probe with Easel for the moment)
The process was taking for ever, going like 100 times around a circle shape!!! Ridiculous!
I then used ncviewer to try and find what was going on. The simulation showed that the gcode generated by Easel was causing this behaviour.
Question 1: Any reason why Easel is telling the cnc to pass "a million times " to make a basic 0.1mm depth circle? I’m happy with 2 or 3 passes max.
I imported the file again and this time I run the simulation. it estimated 96 hours!!! I’m trying to mill about 50% of the copper in the above PCB.
Is this normal in this cnc world? I might as well just cut inside shape path , paint protect the copper shape and use chemicals to eat the remaining copper away. This cnc part takes 20 minutes to do this.
The z probe zeroing is not well explained in Easel. I should have command buttons in the screen to lower the z axis to touch the based of the probe.
Question 3: is there any guide to use z probe with 4030?
Question 4: Any guidelines, references on parameters, speeds, feed, nccode techniques to mill drawings in blank PCBs? (I’m not using GRBL PCB files, just drawings).