I spent this week doing some touch ups on the ROV, contacting people to talk before purchasing materials and manufacturing. I also contacted the syntactic foam supplier about required PPE. I also asked about mold release, vacuum chambers, and cast procedures.
This week I also helped a couple people with their projects. Notably I helped Andrew with his key caps and his case. The key caps I suggested a different print orientation so that the stem would work properly. I also helped to remove support from the failed key cap print.
I then worked with Adam S to try and salvage the failed key caps. Our plan was to make an aluminum replica of the post the key caps go on, then heat the replica and melt it into the keys. This did not work very well because the melting temp of the tough 2000 resin was much higher than we could reasonably achieve. Instead The keys just burnt and rubberized.
On the ROV I added the rear adjustable buoyancy material. This is a cylinder with a mounting hole and clearance for other hardware. To adjust the buoyancy the length of it can be machined down.
I also helped Andrew with the design of the case for his keyboard. I walked him through the mounting holes and adjustable PCB hold down parts.
