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I swept in lab 405 and cleaned around the 3-D printer. I also requested a pick-up for two boxes of used batteries and the contents of the sharps container. I found a [https://ugradresearch.uconn.edu/research-ethics/#rcr page on the UConn website about Responsible Conduct of Research training].
I swept in lab 405 and cleaned around the 3-D printer. I also requested a pick-up for two boxes of used batteries and the contents of the sharps container. I found a [https://ugradresearch.uconn.edu/research-ethics/#rcr page on the UConn website about Responsible Conduct of Research training].
2/15: Jim showed me how to drill the holes in the sci-fi collars using the drill press. He explained the major and minor diameters of a screw. The major diameter includes the threads but the minor diameter is the narrowest one at the deepest point of the grooves between threads. We can measure the major diameter easily with a micrometer, but the number of threads per inch is harder to tell.
A screw number such as 4-40 means that the screw size is 4 and there are 40 threads per inch. When drilling holes to be tapped, they should be a little larger than the minor diameter and less than the major diameter. The tap hole needs to be larger in harder materials such as steel or iron than in softer materials such as brass or aluminum.