How did they make this?

formatting link

Regards,

Boris Mohar

Got Knock? - see: Viatrack Printed Circuit Designs (among other things)

formatting link
void _-void-_ in the obvious place

Reply to
Boris Mohar
Loading thread data ...

EDM'd out of two ball bearings.

Best regards, Spehro Pefhany

Reply to
Spehro Pefhany

And then lapped as assembled to make the surface perfectly continuous with uniform surface finish.

Reply to
anorton

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.