Question about Science & Laboratory
When i try and focus the stage will not remain in place - something needs tightening I guess - where and how to I do this?
Posted by Anonymous on
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Posted on Jan 02, 2017
Well then ?
It sounds like you do have a pre-tension problem, and if the fine focus is slowly turning as the stage desends, that is where your problem is. If you could tell me make and model, fixing it should be no problem.
Posted on Mar 10, 2008
I think your problem lies in the way the stage is limited upwards. On top of the stage, right behind it where it slides against the arm, there should be a little screw. This screw limits the movement of the stage to a certain point upwards. If the limit exceeds the adjustment gear and its opposing track, then the stage just goes up one notch and then it clunks down. If you screw it down the stage is limited further down, if you screw it up it's limited a bit higher. The point of this screw is to prevent objective and slide damage. Try adjusting this little screw a bit further down and see if it still 'clunks' when you turn it up. After that we may work on properly adjusting it. If not, please post again with whatever detail you can provide to aid you with this problem further.
Posted on Jun 09, 2008
Try holding the Right knob so it does not move, whilst firmly moving the Left knob towards you (clockwise), this is the adjusting method used on Zeiss Jena 1960's High End microscopes, e.g Eduaval & Ergaval.
Posted on Mar 20, 2009
SOURCE: stage slides down after focusing
There is a tension adjustment for this. It is located on the coarse focus knob which is on the same side as the switch. It looks like a chrome ring with about 3 holes in it. A strange looking tool should have come with the scope. It is designed to fit into these holes and allow you to adjust the tension on the coarse focus knob. You need to tighten it just a little bit. Not too much or you will have trouble operating the coarse focus knobs smoothly.
Posted on Dec 25, 2010
YOu need a spanner wrench, they are a jewelry or photography technician item. Look on EBAY for them, they are cheap
Posted on Jul 27, 2012
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