universal profile projector USSR
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  1. #1
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    Default universal profile projector USSR

    Hello!

    I have an opportunity to buy an "universal profile projector"
    Theres many wooden boxes of accessories with it.

    Model UIM-23 (уим-23)

    Anybody used one?
    For what kind of use its made?

    Its similar to this:

    Универсальный измерительный микроскоп уим-23 - Для бизнеса, Оборудование для бизнеса - Башкортостан, Октябрьский - Объявления на сайте Авито
    Last edited by The real Leigh; 05-22-2019 at 09:40 AM.

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    You might get replies if we knew how much it cost. At "the right price" you could maybe resell (at a profit) if you can't use it yourself.

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    Machines like that are specific to measuring small flat parts. Although you might be able to measure round parts if they are not too large in diameter. Best use is for things like small stampings. Most of that is now done with cameras.

    Charles

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    img_20190403_151109.jpg
    img_20190403_151116.jpgimg_20190403_151300.jpg
    img_20190403_151349.jpg
    img_20190403_151421.jpg
    These are the accessories what comes with it. The owner has not decided about the price yet

    This machine seems to have X and Y axis optic scales.

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    Quote Originally Posted by Harri89 View Post
    These are the accessories what comes with it. The owner has not decided about the price yet

    This machine seems to have X and Y axis optic scales.
    Without a price how can anyone advise? If it's something you know (not feel) you can use decide how much you'd be willing to pay.

    As good as all those types I've seen have X and Y scales. Not much use without.

    It certainly looks good but are "spare or reserve parts" (if necessary at some time) a possibility?

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    You can be sure of one thing, this tool will be worth far less without the accessories. Now it must be determined if all the accessories are there to make them work. Getting spares will probably not be easy.

    Charles

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    The one in the Russian link looks like a russion LOMO copy of the Zeiss-Jena Universal measuring microscope (Zeiss being east German, and the obligation being to "Share the fruits of our labours with all our socialist brother nations". This is also how a lot of chinese microphone-makers (I know..) are using German technologies from Neumann, world leader in condensor microphones, who had a department in Gefell, in the East of Germany as a shelter from the Berlin bombings during WW2.

    That's really a handy piece of kit, and, with the right accessories, capable of measuring a wide range of stuff to µm accuracy. The way it works is to zero on one feature (X or Y , not Z) or degrees with the proper round table, and then by moving the measured object to the "other" feature in the main microscope ocular, and reading the difference, by adjusting various knobs and reading various measuring eyepieces.

    the main column can be tilted to allow for the pitch in thread measurements (i.e. looking at it slightly at an angle to follow the thread). various eyepieces were available to measure various metric thread piches (ordinary 60º and trapeze), and TPI for Whithworth 55º as well as some pre-defined radii.

    Also an ocular to measure angles was usually standard (on the old machines that i know of).
    the profile projector-head thingy was an accessory which fits over the eyepiece - it wasn't a real profile projector.

    For a current offer in Germany:
    universal measuring microscope u used machine for sale No. 124184294

    Russian accessories have a lesser finish than the Zeiss stuff, which is gorgeous. and may well fit, but may also need alterations (e.g. thread length and engagement of the Russian objectives is different, event though the tread itself is the same)

    This machine was made, I think, primarily for the checking an measuring of gauges in the days before CMM - which is where Zeiss has shifted their focus to.


    From the accessories you've shown, it looks like a newer version, which is probably good.
    The original Zeiss stuff was, for a period, sold as "Jena" or "Aus Jena", because Zeiss Oberkochen(West Germany, where the allies settled the firm down after looting the Jena factory) won a trade-name dispute.

    sometimes these, or accessories, turn up on German ebay, look for "Werkzeugmikroskop"(tool microscope ie toolmakers microscope). or "Universal-messmikroskop" prepare to look long and hard.

    If you have the room and it's a bargain, I strongly advise you to get it.
    When I was trying to sell a watchmakers' lathe, I just put it under the microscope and measured alignment accurately to within 0.01 mm. great stuff. I have a Large toolmakers microscope from Zeiss (smaller then "yours"), and mostly it does nothing but sometimes nothing else will do.

    Happy Hunting,

    Hans

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    Been asking for the price, no progress on that... Atleast the "optic" scales work x and y, no idea of the resolution on them.

    https://m.youtube.com/watch?v=SUnkJrOqeIk

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    Finally i have a price the seller is asking, its 500 euros, what do you think guys?

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    If you have a use for it, 500 euros is a steal. Get it.

    If you have no use for it, no sum is low enough.

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    Quote Originally Posted by Harri89 View Post
    no idea of the resolution on them.
    A machine like that the resolution would b .001 mm

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    Quote Originally Posted by SIP6A View Post
    A machine like that the resolution would b .001 mm
    Dont know did you watch the video from the youtube link. To me it looks like the resolution of the optic scale is 0.1mm.
    I dont know what the other scale is under it, it moves from different knob separately.

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    On a machine like that, 0.1mm resolution would be like using stone axes and blunt clubs while wearing snow mittens to perform brain surgery.

    Maybe 0.1 micron, which is 0.0001mm?

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    These were fitted with what Zeiss called "Spiralmikroskope" : there's a 0.1 mm course adjustment.
    And then you would adjust another knob to rotate a glass disk with an etched-on spiral line and 100 graduations. Getting the spiral line aligned between two marks gives a 0.001 mm reading.

    Assuming they are there, because the video is very shaky and there's no overview of the whole thing.

    I second sfiedberg: if you have a use for it, buy it. (and if you don't: you'll have a use for it just after the machine has been scrapped.:-))

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    I was taking a better look at the scales today. You are right, there is 0-100 scale wich rotates from the separate black knobs.

    The x axis disc scale has something wrong with it. It moves the mainscale from 0 ~20 and then it doesnt show any movement at the main scale.
    It rotates from 0-100 freely and shows all numbers.

    Any knowledge how this system works?

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    Can't help you with that machine but it does look superb.

    I have an OMT toolmakers microscope which I think is intended to fill a similar role. I don't use it every day but when I need it there is nothing else that I have which will do the job as well. It isn't clear from the photos whether the Russian machine has a rotary table. I find that feature to be essential for my type of usage so worth checking what is in the accesory set.

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    Quote Originally Posted by billmac View Post
    Can't help you with that machine but it does look superb.

    I have an OMT toolmakers microscope which I think is intended to fill a similar role. I don't use it every day but when I need it there is nothing else that I have which will do the job as well. It isn't clear from the photos whether the Russian machine has a rotary table. I find that feature to be essential for my type of usage so worth checking what is in the accesory set.

    Theres actually two Rotary tables in the picture, a small and simple one. Not so accurate. And the big one with higher accuracy. The big one has never been used. I have the accessories now at my home. I will get the machine later
    Last edited by The real Leigh; 06-01-2019 at 06:40 PM. Reason: removed double negative - TRL

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    I get this machine home tomorrow Lets see if i have time to upload few pictures before a vacation to Milano.

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    Okay, i fixed the x-axis micrometer scale. There was a tiny spring disconnected. All seems working, its really dusty..

    How should the measuring with this kind of equipment be done since there is no dials to zero?


    img_20190714_191310.jpgimg_20190714_191140.jpgimg_20190714_191224.jpgimg_20190714_190707.jpgimg_20190714_190707.jpgimg_20190714_190735.jpg

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    I used to have a Leitz toolmakers scope with embedded scales. Measuremets had to be by taking two readings and subtracting the difference between the two.


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