Including few more photos.
I milled a flat surface and parallel edge reference to hold the PCB. I may need to resurface the holder each time I remove it. Haven’t tried it yet. Held the PCB down with “JVCC DCP-01 Double coated Crepe” tape from Findtape.com.
The V-bit did not come with the stop collar. I took one off a broken drill bit (they break if you drop them!) and pushed it on with a vice to match my drill depth.
Steve
