Finish the dual sided PCB design. Wouldn’t fit single sided. Ordered some FR1 PCB 4×6″ from Carbide3d. Not really many choices for FR1. But FR1 supposed to be easier on the endmill. Going to use pcb engraver cutter. Ill create outer cut toolpaths. The relay version probably going to be busy and only have room on the back to do it. Should be fun but those won’t get shipped for awhile.
Reflowed the PCB with larger area and doubled eyelet size from 1/32 to 1/16″ holes. Switched over to the 1/32″ endmill, the engraver bit is just hard to maintain exact specifications for such a small pcb board. The tapered bit hard to control depth and keep accurate traces. Kept shrinking and takes awhile to cut. I’ll run some test double sided cuts tomorrow. Not sure how straight my y axis wasteboard holes are, going to the metal angle on there and flip it on x axis. I feel it’s off by a hair. We’ll see. I think it’ll cut fine. Also ordered some UV solder mask to prevent oxidation and added 1/8″ plastic pcb mount holders. Probably could’ve just used double sided stickies but maybe the plastic is more durable?
