Archived posting to the Leica Users Group, 2021/05/23

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Subject: [Leica] *****SPAM*****: Delicate Operation
From: leica_r8 at hotmail.com (Aram Langhans)
Date: Sun, 23 May 2021 10:46:22 -0700
References: <DM6PR04MB5403B2CE00FD8C51A07A424CB8279@DM6PR04MB5403.namprd04.prod.outlook.com> <9177731A-FC2E-4605-9763-5CBC07BE0E02@frozenlight.eu>

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




In reply to: Message from leica_r8 at hotmail.com (Aram Langhans) ([Leica] Delicate Operation)
Message from photo at frozenlight.eu (Nathan Wajsman) ([Leica] *****SPAM*****: Delicate Operation)