BW February 2018

2/1: Dr. Jones said we do need a light guide bundle highly polished on both ends for calibrating the fiber testing equipment. I chose bundle 406 with the black strap and got it on the polishing plate yesterday, but it was not yet aligned. This morning I aligned it as well as I think it will be. I think it needs just a little polishing with 1000 grit to get all the fibers to be exactly in one plane. Since the fibers on the left side are sticking out a tiny bit less than the rest, I want to twist right in front and left at the rear of the polishing plate.

2/2: I finished polishing bundle 406 upstream so we have a bundle highly polished on both ends.

I also reviewed the fiber testing equipment so I will be ready to discuss it next week. That way I can show what I know and learn what I need to.

2/5: I did some fusing practice, and the strongest fuse that I measured held 1200 g plus the hanger. It broke under 1300 g and the hanger. Dr. Jones said wings are unavoidable, and I should remove them with a razor blade, not sandpaper.

2/8: Jim said I should keep a separate logbook for fiber testing. I should include links to the histograms of run results and also to the text files (maybe on Gluey?) that can be opened with a spreadsheet. Once I test fibers, they should remain in the same bundle position for all subsequent tests. I should note anything unusual, such as fibers that need to be sanded to go in the chimney or fuses that break.