Re: HELP Designing lathe spindle, bearings questions, WTB: Lathe headstocks

According to Gunner <gunner@xxxxxxxxxxxxxx>:
On 5 Jun 2006 02:54:54 GMT, dnichols@xxxxxxxxxxx (DoN. Nichols) wrote:


O.K. Not quite what I was looking for. The one which I have in
mind would weigh about what a 4" 3-jaw chuck would -- or even one of the
lighter 6" 4-jaw chucks. Quite a bit of cast iron in the frames.


The microscope with the monocular lens and the white disk in the
base..weighs about 40 lbs. The one with the big stage knobs in the
foreground.

Not quite the one which I am thinking of, however. I used that
stage to build a mask alignment system for making hybrid integrated
circuits, with a rather specialized microscope mounted above it. This
was some number of years ago. The glass disk from the stage (which was
replaced with a special holder in my project) was something like 6"
diameter, IRIC.

It came out of a swiss screw machine shop that specialized in under .05
parts. Its got a reticle, radius grid and so forth. A microscope and
comparator. The crosshair and grid is part of the eyepiece..and there is
a fractional degree dial around the base of the eyepiece.

It sounds nice -- but is more than I need overall.

The markings on the label are gone, still read Made In Japan. The
micrometer knobs are .0001 and are Fowlers, the eyepiece is a Nikon.

IIRC -- the micrometer knobs on the one which I used had Nikon
labels on them.

Shrug...Ive used it a couple times looking at sear engagements. Side,
top and bottom illumination.

For that -- my optical comparator would probably do well.

The swivel headed boom microscope at the rear is a variable power
Spencer, and the one next to the servers in the front is a Spencer 40.

I have one of those -- I forget whether mine is AO or Spencer,
but it is quite useful.

The boom microscope probably gets the most use. 15-50x with the 15x
eyepieces on it.

O.K. I only have 10X eyepieces for mine -- so far.

Enjoy,
DoN.

--
Email: <dnichols@xxxxxxxxxxx> | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---
.

Relevant Pages

  • Re: Cheap&cheerful setup for an occasional optical microscope photograph?
    ... I have fully settable intensity on the microscope in any case. ... Ill do a bit more playing and see if I can get in focus subject with a closer camera.. ... If the "fully settable intensity" on your microscope is a voltage control to dim the lamp, it is not the best way to control exposure. ... BTW, in answer to your original question, the simplest way I have found for quick photomicrographs is using an eyepiece with a screw thread cut on the top rim which fits the front thread of a Coolpix 9xx/4500 camera. ...
    (sci.techniques.microscopy)
  • Re: Attachments for Microscope Photography
    ... > important number on the microscope. ... Next is the tube length, ... > Magnification of a microscope system is objective X tube factor X eyepiece. ...
    (sci.techniques.microscopy)
  • Re: microscopy
    ... >> I'm looking around for a DSLR for use with a microscope. ... >> ie which cameras are more noisy than others. ... With a DSLR, ... using the microscope or telescope eyepiece only as the relay ...
    (rec.photo.digital.slr-systems)
  • Re: Extension rings for macro
    ... eyepiece threads are too small but the image projected can be much ... NO microscope that I have ever used in my life has ever had a threaded ... There's good reason that a decent objective ...
    (rec.photo.digital.slr-systems)
  • Re: Extension rings for macro
    ... eyepiece threads are too small but the image projected can be much ... NO microscope that I have ever used in my life has ever had a threaded ... There's good reason that a decent objective ...
    (rec.photo.digital.slr-systems)
Loading