Showing posts with label machining. Show all posts
Showing posts with label machining. Show all posts

Saturday, December 15, 2018

Novice Machinist 5 - Small Tools

So here are 3 more plans for the novice machinist to practice his skills in the machine shop with. These small tools are must haves for the small shop and it is always satisfying to work with tools you have made yourself.

This group and the following post of a bending jig come from "Machine Shop Projects" by Roy E. Knight, and published by McKnight Publishing, originally published in 1943, this second edition in 1982.

These were originally published as project manuals for machinist students in the schools. I mentioned it before and it is unfortunate, but many schools are phasing out this kind of training. I guess what the manufacturing industry needs now-a-days is code writers and programmers. The few jobs that still require "get your hands dirty" machinists have all been shipped overseas or are limited to small "design concept" or "one-of" shops.

First up is a nice depth gauge that will find lots of use in any shop.


Various lathe tooling, wood or metal turning, will benefit greatly if you can turn accurate Morse tapers such as the MT 2's used here.


A versatile V-Block and clamp is just the thing for accurate working of round stock.

Saturday, April 14, 2018

More "Mechanical Details"

So here are a few more pages from "Mechanical Details For Product Design" Proper spur gear design can get confusing without an understanding of the terms and formulas used in there design. The first page is a clear layout of the terms and formulas used in designing spur gears.


Next is a couple of pages on designing for easier machining. Some are obvious,some not so much. Taking the time at the design stage can save time and frustration with less than great set-ups later.



For parts that will need heat treating, many of the rules used in castings also apply. Rounding internal and external corners and avoiding quick changes in section thicknesses will go a long way to preventing cracks and shrinkage problems such as warping.




So back to my breakfast, nothing special just some extra old, crumbly Canadian cheddar, on overly buttered whole wheat toast, washed down with a couple of cups of strong coffee, mmmmmmh. Cheers.