Last week was a lot of purchasing, planning, designing and prototyping but no building, this week I have been mostly building. I am glad I started because I ran into a lot of issues with my build and I think I am close to solving them.
I started by putting the two glass pieces together using the silicone:
Before doing so I had to make a setup to make sure that the glass and the cutting pad are fixed in place when I am applying silicone. As shown in the picture: pieces of paper to avoid scratching the glass are out on the cutting pad. Both are taped down to the table to ensure that they are fixed.
The bottom glass panel is also tapped to the sheets of paper to be fixed
Applying silicone: the clear silicone looks a lot better than the brown one that I have used before. Now I know that it needs at least 12 hours dry/cure before I do the leakage test.
Unfortunately that two glass panels I got from Mcguckin were not exactly the same size, that caused a lot of problems for the assembly and the build quality down the road. Als
o the edges were very sharp and very jagged so I had to sand them down. The sand paper I used was not ideal so this time I will use a coarser grit to speed up the process of sanding.
I forgot to tape the spacers down before I apply the silicone. I will be careful next time :).
Since the two glass panels were not the exactly the same size this caused me to move the top panel around a bit to align it to the bottom one. This caused the silicone on the edges to be of inconsistent thickness. This didn’t affect the sealing but it made the silicone non uniform. However this will be hidden by a frame.
Sealed or leaking test: The water was contained without any leakages for a day.
Running into an issue: After I did the leakage test I drained the water and attempted to put the sand in the frame right after that. I got into problems because the glass was not completely dry when I poured in the sand. So the sand got stuck. I should have allowed some more time for the glass to dry before putting in the sand.
Spacers issues. The black sand that I bought last time is has coarser grains so I need to find wider spacers to have a wider frame.
That’s all, I know I am under a time crunch specially with other classes but I will keep pushing on this project and try to get it done before the expo.