Unitron Toolmaker Microscope Teardown
Unitron TMS
The following are some photos of the Unitron TMS microscope.
This microscope is made of a cast iron body and designed for metallurgy, toolmaking, biology, inspection, and many other applications. There are a wide variety of attachments which allow the accurate measurement of distances and angles.
This particular model is equipped with:
- 1” x 1” travel stage
- binocular eyepiece
- monocular eyepiece
- filar eyepiece
- 3X, 5X, 10X, 50X and 100X objectives
These allow measurements in 3 dimensions at resolution of 0.0001” (greater with filar attachment). The microscope weighs just over 40lbs! The vertical column is handscraped for accuracy.
The handscraped ways of the vertical column are a feature a bygone age in manufacturing.
The base hides the electrics for dimming each lamp. To do so, the provided mains power is reduced with auto-transformers for two outlets.
The X-Y stage is constructed of bronze and spring preloaded. The stage has been shimmed for level.
An apparent cost-saving measure is the construction of the slideways. Each V way is composed of soft material, with hardened steel inserts at the areas of ball bearing contact.
The microscope can be used in many different applications. My favorite is as a profile projector!