Scattered Thoughts . . .

All the parts for the spectroheliograph I am making have arrived from France over the past couple of weeks.  Today is a day of thunderstorms so I decided to start assembling this instrument. The last parts to arrive were the optical parts...  two doublet lens assemblies, a tiny slit, and a holographic grating.  I needed to disassemble the 3D printed parts so I could assemble the entire instrument with the optical parts included.  Of course, I first cleaned up the room and removed as much dust as possible. Once I assembled everything, it was time to connect it to a computer so I could make some tedious fine adjustments and then test everything. The first obstacle to overcome was that the holographic grating was not in line with the rest of the assembly.  I needed to shim this significantly and it is still not right.  I might need to re-shim this part after more testing.   Unfortunately, it is quite dark outside today with dark clouds changing the l...

The door... finally cut, sanded and assembled! I finally had a productive day today! It has been a rough week or so of lousy health which caused the installation of the new half bathroom to stall for almost two weeks. Today I managed to get some significant work accomplished! I was having some cognitive issues first thing this morning so I decided to weigh my options... take another day off to recover or try to accomplish something. In the end, the weather forecast was the determining factor. The moment I saw that the rest of this week is supposed to be rainy, I knew I had to try to accomplish something outdoors in the decent weather. The thing to accomplish today was cutting up all the pieces for the custom door since this particular project needed to be done outdoors. I cut up all the lumber... shaped all the joints... and then sanded everything. By the time I finished this, it was definitely lunchtime. My stomach had been telling me the same for at least an hour at this poin...