Archived posting to the Leica Users Group, 2021/05/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]There are a few other adjectives I could use besides patient. Bored, inquisitive, cheap, desperate come to mind.? I think I just solved one of my set screw problems in a dream last night, but that creates another problem I need to overcome to solve it. On 5/22/2021 10:48 PM, Nathan Wajsman wrote: > You are a patient man! I could not even dream of attempting something > like this. > > Cheers, > Nathan > Nathan Wajsman > > Alicante, Spain > http://www.frozenlight.eu <http://www.frozenlight.eu/> > http:// <http://www.greatpix.eu/>www.greatpix.eu > PICTURE OF THE WEEK: http://www.fotocycle.dk/paws > <http://www.fotocycle.dk/paws>Blog: http://nathansmusings.wordpress.com/ > <http://nathansmusings.wordpress.com/> > > Cycling: http://www.crazyguyonabike.com/belgiangator > <http://www.crazyguyonabike.com/belgiangator> > > YNWA > > "I?m not arguing, I?m just explaining why I?m right" > > > > > > > > > > > > >> On 23 May 2021, at 04:44, Aram Langhans via LUG <lug at leica-users.org> >> wrote: >> >> I have been looking for a decent microscope ever since I retired 13 years >> ago. A biologist w/o a microscope is like a photographer w/o a camera. >> I have owned or had access to a microscope ever since 4th grade when I >> used my Christmas money to buy a Tasco. When in California I happened to >> look at Craig's List and found someone with a nice Nikon scope advertised >> "Like New" and two AO scopes missing some lenses he was tossing in all >> for $100. It took a few weeks to hook up, but we met in a WalMart >> parking lot and I tried them out with power from my RV. They were in sad >> shape. The AO's were not bad, but the Nikon was really rough and the >> fine focus was seized up but it has nice "Plan" objectives. I like a >> challenge so I offered $80 and he took it. Transported them home and >> took the AO's apart, lubed them and got one working quite well with a >> borrowed set of eyepieces from the Nikon. The second one as an alignment >> problem probably beyond my ability to calibrate. I had been using >> penetrating oil and wrenches on the Nikon for days trying to free up the >> shaft, but to no avail. >> >> I finally figured out how the focusing mechanism might be disassembled on >> the Nikon scope and took it apart. I had nothing to loose. Got the fine >> focus shaft out of it with a hammer and a punch. It was all corroded and >> I think the scope had been dropped as the sleeve was partially bend. >> Cleaned it all up. Used a long drill to clean out the sleeve and a rod >> to straighten it out. It is now all lubed and put back together, but I >> need to replace three set screws that were sheered off either by me or by >> someone forcing the focus mechanism. One I have no idea where it is >> suppose to go. Small metric. I will visit Tacoma Screw on Monday to see >> if I can find anything, or else I will drill and retap with SAE screws. >> Still have a stripped focus nob and tensioner I need to figure out, and >> the fine focus eccentric bushing that has a spot for 4 set screws but >> there were none in sight. I might get this thing working after all. I >> took photos of the process so I knew how to put it back together. It is >> pretty complex but elegant. Also a shot of the disassembled scope. >> >> Here is the scope disassembled: >> >> Nikon Scope-4193 (leica-users.org) >> <http://gallery.leica-users.org/v/Aram/misc/sc/Nikon+Scope-4193.jpg.html> >> >> Then the process involved in taking apart the focusing mechanism and then >> the reassembled mechanism starts here: >> >> Nikon Scope-4178 (leica-users.org) >> <http://gallery.leica-users.org/v/Aram/misc/sc/Nikon+Scope-4178.jpg.html> >> >> Comments welcome >> >> Aram >> >> -- >> Aram Langhans >> (Semi) Retired Science Teacher >> & Unemployed photographer >> ?The Human Genome Project has proved Darwin more right than Darwin >> himself would ever have dared dream.? James D. Watson >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information > -- Aram Langhans (Semi) Retired Science Teacher & Unemployed photographer ?The Human Genome Project has proved Darwin more right than Darwin himself would ever have dared dream.? James D. Watson