A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Michael Josefsson
Date: 2023 Nov 8, 23:58 -0800
Great drawings. I have not opened it yet and have not removed any shellac, I understood the "DON'T!!" from you all :) I did remove the lid for the diafragm though and have been able to pump it some more, still no more liquid but with the drawings I will try again. The instructions with 10 o'clock etc I have already tried. There are some tiny tiny small white blobs of something in the chamber so perhaps the channel to the reservoir is jammed if they also are in there? I will try to exercise some more.
PS I found this pdf PORTABLE INSTRUMENTS FOR MEASURING ANGLES. University of New Brunswickd where a bubble is described.