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    microscopes for sale on ebay as of 24th May 2025 fyi

    It is a photo-ocular NFK 2.5x L.D 125
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    microscopes for sale on ebay as of 24th May 2025 fyi

    Do you have an objective inside your photo tube? I do not remember exact magnification I think something like x0.8. try to find a manual to the scope.
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    microscopes for sale on ebay as of 24th May 2025 fyi

    84.5mm dimension is taken from the specs of Meiji. There are 2 important things I want to mention. 1. This surface is important and if machined should be done precisely on milling machine or lathe. the surface should also be smooth clean and lubricated. 2. There is a thing called a tolerance...
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    microscopes for sale on ebay as of 24th May 2025 fyi

    You will need two items. 84.5mm focusing ring/holder, and a stand with a boom or other type of the arm.
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    Saxophone engraving advice

    This person uses saxophones individually built for him.
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    Saxophone engraving advice

    Many thanks to everybody who shared their experience. I just finished the work and returned the instrument to the owner. He is happy. If it was me I would make everything smaller, but the client defined the size. I expected the metal much thinner, but it was thick enough plus I was not cutting...
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    Saxophone engraving advice

    Hi, I have a client that wants to put a name on his saxophone. Since i never engraved on such a big item I try to gather information. My first plan was to transfer the image and engrave it normal way with air assisted tool. I realized then it is too tight for handling. I addition holding a...
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    Help me please

    What you showed on a photo is a Swagelok type connection. It uses a cylindrical threads and two ferrulas under the nut. The nut and ferrulas are missing because once the wedge is installed you can not take it out. Another side is just a standard 1/4" NPT thread. It is up to you what you want to...
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    Graver or Scope?

    I do not know a situation with microscopes in Australia. here in the US stereozooms are available. Ebay is not only source to look. There are companies servicing scopes and selling old ones, surplus auctions wit used equipment from Universities and laboratories some local listings as a...
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    Graver or Scope?

    There is no simple answer to your question since both of this items are important. However a microscope is much easier to get because it is not as rare as a quality engraving machine/handle. I invested in a good engraving handle and a relatively old microscope. A microscope you can get for as...
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    allen screw

    You right. I just checked the QC holder I have again and it is #8-32. Same pitch and larger diameter. Sorry for misinformation!
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    allen screw

    Hi. You can find all dimensions here. It is a #6-32 set screw. https://www.mcmaster.com/91375A142/
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    Beginners Way into Power Graving

    Energy is equal to half of a velocity squared times mass. Therefore more mass equal to more heat.
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    Homemade Engraving Machine

    There are several points regarding self made engraving setup I want to mention. I started my journey several years ago without much ambitions. I just wanted to engrave as a process and not as occupation. If you take engraving as a hobby - it is an expensive hobby and my budget did not allow...
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    Beginners Way into Power Graving

    Sergej Waltman, the real inventor of this machine, after first generation with a tire inflator attached the compressor to a flex shaft motor you can buy separately with a pedal. All you need to do is a small plate adapter that mounts on the motor and has threaded holes for attaching a...
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    0.3 objective for Nikon SMZ

    Hi, Dave. Seems like it is hard to find. I just measured a thread in my Nikon SMZ and it is 34mm with 0.5mm pitch. I would suggest buying adapter from this thread to 48mm because 48mm is easy to find.
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    Drill press base

    There is a Central machinery benchtop model with a 70mm tube. https://www.harborfreight.com/power-tools/drills-drivers/drill-presses/heavy-duty-16-speed-bench-drill-press-38142.html It is a popular model because once you took the head off it fits under the bench and has a round table. I got a...
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    Question: Wooden pin vise

    I hope this may help. Mcmaster has a variety of pin vises and handle can be attached to this one https://www.mcmaster.com/30505A5/
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    Critique Request Spyderco knife design help

    Thanks, John. I was not playing with a gamma at all. I took the knife outside and made a picture. It can be either a wrong white balance or just a reflection from the wall. I will made another picture soon with more sophisticated light setup. Slava
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    Critique Request Spyderco knife design help

    This was a nice project. Thank you everybody for valuable help.

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