Hi!
I've been trying to mill the PCB design attached in the zip file (a Z80 test board for my friend) using a CNC 3018 machine and the results are proving totally hopeless!
Can the PCB experts have a look at my design, the cutter and the results I'm getting from trying to mill this please?
I made a 555 single-sided PCB on this same machine a week or two ago which came out quite well (apart from drilling the holes too large for the component leads!) and I can't see where I'm going wrong!
The CNC is running GRBL 1.1f with Candle 1.1.7 and I've tried a Z-axis depth in the FlatCam software of -0.010 and it's still hopeless!
I told my friend a PCB as complex as this should really go to China but he's a skinflint and won't spend any more, having bought the CNC machine!
What are the minimum clearances, in thou/mils, I can reasonably expect the CNC 3018 to mill to, in order to set the DRC Rules in my Design Spark Software?
I've included all the Gerber and native design files as it's not in any way confidential!
Sorry for being a pain in the proverbial, but my friend's in a nasty nark over this!
Chris Williams
PS!
The [ictures shown are two pieces of double-sided PCB already spoiled trying to mill this - I wonder if my friend could have bought cheap 2 oz copper PCB stock by mistake which won't mill?
The standard offering from PCB Way/JLC, etc., is only 1 oz of copper of course!