Any Gelbert videos are like Homer Simpson drooling about bacon... On Sat, Mar 13, 2021 at 9:17 PM Karl Schmidt <k...@lrak.net> wrote:
> It isn't hard to get 'A' picture with a USB microscope from China - but > the problem is getting one that is easily in > focus - the depth of field is very shallow.. Getting things lit in a way > to see your 'feature' is another problem. > > I have a dark-feild/bright-field microscope with a trinocular camera tube > - and it still isn't always easy to get a > great picture of some metal detail.. the special lighting matters - really > helps if the object is flat. > > Mechanical touching might be quicker in a lot of cases.. I saw a camera > set-up on a lathe where it was focused on the > tool - so always in focus. > > ,.,. > I have an idea for a touch probe that makes the tool-and machine all part > of an inductor core (a toroid with a gap) - > the space between the tool and the part is the air gap - the wire coil can > be around the colum of the machine (out of > the way) - the inductance of this coil will change with the air gap - and > as you touch, the inductance suddenly changes. > They use such air gaps in power conversion - but here it would just be > sensed. > > I expect that someone has thought of this before and they don't use it due > to some reason I haven't thought of. > ,.,. > > Gelbart has a LASER jig that can get you close (30-50um).. > https://youtu.be/otSjut1iGGk?t=140 > > he talked about another one with a rotating wireless camera - sub-micron.. > > I knew of him when he was involved in making MODEMs suddenly much faster.. > > -- > > -------------------------------------------------------------------------------- > Karl Schmidt EMail k...@lrak.net > 3209 West 9th Street Ph (785) 979-8397 > Lawrence, KS 66049 > > -------------------------------------------------------------------------------- > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
