Question about Meade 8200 Monocular Microscope

2 Answers

Focuser broken the focuser knob turns but nothing happens the stage moves up and down slightly manually but not the whole way there are little silver balls visible in bottom of unit

Posted by on

  • jsg1k2 Sep 20, 2008

    The knob turns but nothing happens. The Stage(platform) moves up and down, independent of the knob rotation. The base seems to be fixed permanently and still cannot figure out how to remove to get an access to rack&pinion assembly.

×

Ad

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 4 Answers

Its not repairable. Mine fell appart too. You cannot remove the stage. I opened it from the bottom. You would have to pry the whole frame appart. The plastic is too fragile and disintgerates. Never buy a platic framed microscope. Too bad, this one has reasonable optics....

Posted on Jun 29, 2009

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

Not really a solution, but anything is better than a posting that get's NO response. It sounds like the rack and pinion drive has collapsed. If you're good with your hands and have a knack for things mechanical maybe you can dissassemble the stage mounting and see how it's meant to work. If something has come loose rather than broken maybe you can fix it. If teeth have stripped from the drive gear - you may be unable to effect a repair. I guess trying to fix it is better than doing nothing. Have a good 2008

kevin

Posted on Jan 12, 2008

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

The stage is not moving when the focussing Knobs are moved. The stage moves freely vertically. It's not attached, I'm sure it needs to be re aligned and a screw need tightening, but which screws?


Hi Faye , we will probably need more info

Does the stage move freely on its own without the course focus knobs

Can you move the stage up and down with either of the course focus knobs

Instrument details / picture would help .

Oct 07, 2015 | Science & Laboratory

1 Answer

Focus knob turns but nothing moves


The Celestron manual for this scope has nothing to say, but on the underside of the focuser assembly, between the 2 focus knobs, you may see 2 screws.
They might be thumbscrews or some other screwhead type. One is the adjustment for the focuser internal clearance, or looseness, and the other is a focus travel lock.
If present, try backing both off 1/2 turn from tightness, and then experiment to see which is which. The focus lock will have no effect until tight, when the focuser will cease moving, as is now. The other screw will gradually remove looseness and rattle from the focuser until it just moves smoothly, with no back and forth loose feeling at the knob.
If neither of these screws is visible you will have to take it to a binocular and telescope shop, where they should not charge much.

May 02, 2012 | Celestron Optics

1 Answer

I have a Orion Cassegrain spotting scope (D:90 F:500) that will not focus. The focus knob turns but nothing happens.


The small "pin" which moves the mirror inside may have either come loose or broken. You will need to remove the focuser to find out.

Visit the Mighty ETX web site for instructions on how to do this.

http://www.weasner.com/etx/menu.html

Feb 11, 2011 | Orion Optics

1 Answer

The small knob that moves the slideto the left or right on the platform (the one furthest from the observer) is slightly loose, and instead of rotating in a smooth circular motion it rotates rather...


The knob you are talking about is called the x-axis control knob. It does not directly affect the focus. What affects the focus is the slight manipulation of the stage and or slide while you are adjusting the x-axis control knob. It only takes the slightest pressure to throw the focus off very far. Theoretically you could completely remove the specimen holder and move the slide around with your fingers.
The specimen holder may need to be replaced but without further more detailed knowledge of the mechanical problem I cannot instruct further.

Oct 05, 2010 | Premiere Microscopes P-01310 Monocular...

1 Answer

07 Ford Focus Arm Rest replace..... has been broken for a while from leaning on it....Did not know the round caps were actually "removeable" even tho there pretty fragile......My problem is the "swivel...


Been there done that. At the back of the armrest there is a little plastic panel. Remove that and you will find 2 screws. Remove those and the whole assembly comes out.

May 20, 2017 | Ford Focus Cars & Trucks

1 Answer

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.

Jul 08, 2010 | Swift M2251C Monocular Microscope

1 Answer

Swift microscope no 634008 having problem staying in focus when switching magnification


First, a scope of this grade will not be completely in focus as you move from one magnification to the next. But it should be close enough that you do not loose your point of interest.
Be sure you are not pressing down on the stage specimen platform as you change magnifications. It is very sensitive to pressure. Also, be sure that the coarse focus tension is tight enough that the platform is not drifting down imperceptibly as switch magnifications. Look through the scope and watch if the image goes out of focus while you are watching it. If so, you have what is called "stage drift". This is corrected by tightening the tension on the coarse focus knob.
The tension adjustment is on the coase focus shaft. It looks like a chrome ring with about 3 holes in it. There should have been a strange looking tool that came with your scope. It is used to adjust the tension. If your specimen is "drifting" out of focus, simply tighten the tension ring a little bit at a time until the specimen no longer goes out of focus. Do not get it so tight that it is not easy to operate the coarse focus knob.

May 22, 2010 | Swift M2251C Monocular Microscope

1 Answer

Stage slowly falls causing unfocus


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.
Good luck,
Alan Mowle

Mar 05, 2009 | Science & Laboratory

2 Answers

Microscopes


sir,
Diffrent company having their own system for microscope arm balacing.

Tell me which one microscope you have.

Auxillary arm or microscpe body sloly come down ward.

tell me problem is consult with which part..

INDRAVIJAY

Jan 02, 2008 | Tasco 750 Monocular Microscope

Not finding what you are looking for?
Meade 8200 Monocular Microscope Logo

Related Topics:

271 people viewed this question

Ask a Question

Usually answered in minutes!

Top Meade Science & Laboratory Experts

Gareth Cockram
Gareth Cockram

Level 3 Expert

661 Answers

Andrew Taylor
Andrew Taylor

Level 3 Expert

19050 Answers

ray gallant

Level 3 Expert

50270 Answers

Are you a Meade Science and Laboratory Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...