This article describes how I made two round disks on my lathe out of sheet metal that was too thin to be held in a lathe chuck. I also could not use a mandrel because one of the disks was not going to have a hole drilled through its center. The two disks were made from .073-inch thick aluminum sheet metal and are about 5-inches in diameter. … Read the rest
How to Read a Micrometer
I want to tell you about an excellent tutorial that will teach you how to read a micrometer and give you some practice so you can be sure you are doing it right. This is still an important skill even though it seems like everything has a digital readout nowadays. Although it may seem like an inexpensive 6-inch digital caliper can be used to measure almost everything, especially in a home machine shop, a micrometer is often going to be more accurate and be the best or only tool for the job.… Read the rest
