Hi, I do hope someone can help me as I’m going nuts over this.
I’m using Fritzing to prepare Gerber files, then into flatCAM to prepare g-code and then into grblControl to my 3018.
However, what I’m finding is that my PCBs appear to be inverted, i.e. they work as long as I put the components on the copper side!
I must be doing something very stupid, but I just can’t figure it out.
Any help from anyone would be really appreciated and certainly save my sanity 
Thanks
Dave
A search for “milling pcb” in the forum turns up some 50 posts. One of them may provide insight (or someone that knows may answer.)
Peter
Hi Peter,
Thanks for the “push”. I did try looking for the problem, but not just for how to do it in the first place. I found a YouTube video and sure enough it included mirroring in flatCAM.
Thanks
Dave
I always need to flip the boards I want to mill (actually, laser cut). I go from fritzing svg output (flip in inkscape) and then I generate gcode with jscut I don’t remember why, but it was also because the orientation was flipped from what I wanted to cut. I was using bCNC GitHub - vlachoudis/bCNC: GRBL CNC command sender, autoleveler and g-code editor for actual cutting since you can fine tune edit while your iterating.
But, I’m usually only using this process for top boards or boxes without components generated in fritzing to go along with a bottom board.
I CNC Mill my PCB’s and have posted a few times…
This is a Link to my YouTube page
You can get the Gerber’s output from Fritzing and use them. CopperCam is my Favorite way to do it. Full usage is not Free but, you can use it for Free with some Limited amount of track/holes…
