Got a usable PCB out of the new mini cnc mill today. A bit ragged around the edges, a 1/8” end mill is obviously a bit too big for the spindle.
Will apply what I’ve learned from this to the two pcb mills in the space.
Got a usable PCB out of the new mini cnc mill today. A bit ragged around the edges, a 1/8” end mill is obviously a bit too big for the spindle.
Will apply what I’ve learned from this to the two pcb mills in the space.
That is awesome!!! top work Stephen
The holes close together in the bottom left are 0.1"?
Mind if I ask what is the workflow/tool chain you used?
Nice work Stephen
@mbainrot,
yes, holes are spaced 0.1". The 3 inline holes (x4) are for small signal transistors in a TO92 case (BC548). The larger holes are for PCB stakes. The rest are passives. I made the tracks 0.024" wide and they get expanded a little by the tool.
Schematic and board drawn up using Eagle v6.5. Obsolete but does the job. I’ve been using this tool for years and have a custom library that I am kind of invested in.
The mill has a generic Chinese control shield and an Arduino Nano. Runs GRBL 1.1. For the UI I am currently using Chilipeppr with the jpadie workspace. Chilipeppr has a bunch of plugins, one of which knows how to transform Eagle board files into G code. Simply drag and drop the .BRD file into the workspace, simplzzz.
Will probably do a demo one Wednesday night, once I am convinced it won’t be a repeat of the last demo
Cheers,
Steve
Not a great photo but this is the final result:
Looks good
Awesome !!!