Photos and text by Ed Thelen BabbageDifference Engine #2 at CHM - Photos
Installation April 9 - 21, 2008
Comments:
- This document focuses on the activities of only 5 people who were preparing the Babbage machine for demo at CHM. Many other people planned and did a) the move, b) constructing the environment of two walls and a Victorian Setting, c) electrical and mechanical work, d) and the usual hidden things needed for smooth operations.
- The machine arrived rusty. The engineers were horrified that the steel looked similar to the bronze.
- There was a continuing priority struggle for 2 weeks, polish or improve function.
- The machine arrived with many screws and taper pins loose - and the machine had evidently been dropped or thumped - witness broken counter weight cables, "settled" stereotyping mechanism and column height problems.
- This document is not intended to be comprehensive, just some uncommon views of machinery and people -
- We made liberal use of private 1401 Restoration tools, and CHM tools and facilities to handle the unexpected Babbage machine problems.
Table of Contents
May 9th, Day 1, arrival
Tightening
Steel rusted, looks bronzy
Special Tools
Carry Problems
First OOPS need parts from LondonRemoving a column of carry levers
Shifting a rack of arms 0.019 inches
Stereotyping and Proof Printing
End-of-page problem
Time's Up, The two weeks allowed are up.
Other