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I prefer digital calipers and digital marking gauge. I have the analog versions as backups, but spare batteries are in the drawer. I can see the numbers much easier, and the zero reset makes some things quick and easy. By no means are the digital tools necessary, just better and easier. Other uses around the shop make them indispensible for me.
Something that helps with "more exacting measurement" - the process. I complete the design of something before starting, whether a pencil drawing or 3D cad. I make a parts list and determine how pieces will be made, and all pieces are made with the same machine set up. That way if I'm off by a 1/16", all pieces are off the same and can usually be built as is. Sometimes the design gets tweaked to build in some flexibility for parts not being perfect.
Something that helps with "more exacting measurement" - the process. I complete the design of something before starting, whether a pencil drawing or 3D cad. I make a parts list and determine how pieces will be made, and all pieces are made with the same machine set up. That way if I'm off by a 1/16", all pieces are off the same and can usually be built as is. Sometimes the design gets tweaked to build in some flexibility for parts not being perfect.