Machinist Kalc Programs

A hexagon, as mentioned in a previous post , is often used in nature due to its amazing strength. One of the earliest hexagonal written thoughts dates back to 36 BC when Roman polymath, Marcus Terentius Varro, reported that the hexagonal shape makes the most efficient use of space and building material. (Source: Wikipedia ) From that point, builders and manufacturers have been busy as bees using the hexagon to build their man made creations.  Image courtesy of   Meggyn Pomerleau With that being said, a machinist often uses two of history's genius hexagon inventions - hex nuts and bolts with hex heads. These handy fasteners allow for an excellent grip without slippage when tightening. As machinists, we also make plenty of hexagons in our career. That's why I decided to revisit my hexagon tips  and GraphNCalc83 programs I created to calculate a  hex angle , hex point 1 , hex point 2 , and  diameter calculation for hex and square. My coworkers and I use...

I have updated the External Pipe Threads Program for GraphNCalc83 to include 1/8-27, 1/4-18, and 3/8-18 pipe OD threads. The NPT OD threads GraphNCalc83 program now has 3 menus to better serve your needs as a machinist. Refer to the images below.

Threads on nuts, bolts, pipes, and other hardware and equipment hold our world together. And a machinist makes sure those threads are correct so everything will stay together longer. Threads make the use of our lathes, micrometers, as well as other machines and machinist tools possible. External male threads need internal female threads to mate or fasten objects together. The screw is made of two simple machines – the inclined plane and the wedge - so that it can move forward while also holding objects together so that the threads are unable to slip from their position. Image courtesy of FLYD The varied uses of threads, thread angles, ridge pitch, coarse and fine threads, thread depth and diameter, and other variations make each thread unique for its use. Each of these variations plays a major role in how the threads can be used without stripping. So, you can see how important it is to get your measurements correct when making these types of parts that require threads. Of course, I...

Nature uses hexagons because of the strength it provides. Also, of squares, equilateral triangles, and hexagons, the hexagon packs together more cells in one plane, using less space, than the other two do. In nature, the hexagon shape is found in tortoise shells, snowflakes, honeycombs, and bees’ nests. You’ll find many more examples if you care to inspect this further. If hexagons are good enough for nature, it’s good enough for manmade products as well. Engineers have been using the hexagon for their creations for hundreds of years. Some, like bridges, houses, and other buildings use this concept because of the strength and use of less space. Using hexagon shaped floor and wall tiles are other ways to not only use less space but also as an eye-appealing way to decorate. A soccer ball, made from hexagon and pentagon shapes, helps the ball maintain its shape as it’s being kicked around, improves the ball’s aerodynamics, and helps players maintain control (Source: https://soccerwhizz....

DISCLAIMER Chord Length: Is a program to calculate the Chord Length of any Diameter to get equal number of divisions. Input the Circle Diameter and then the number of Divisions. The output will be the "Chord Length". Use email account on your iPhone, open with GraphNCalc83. You should receive a message "Imported Successfully". Watch how this program works Buy now for $2.00   You will be directed to Payhip to make your payment when you click on Buy Now below. After paying, you will receive a download link on the screen as well as your email address. Buy Now If the button doesn't load, please try opening this page in a browser like Chrome, Firefox, or DuckDuckGo. Alternatively, click HERE to purchase directly. Thanks for visiting www.MachinistKalc.com today.

As with all of the downloads I provide as helpful tools on this site, this Mill and Lathe  Formulas chart  is handy to keep nearby. This chart provides formulas for SFM cutting speed, RPM, FPR, FPT, MRR, converting IPR to IPM and IPM to IPR, and much more as shown in the picture below. It also includes conversion formulas for inches to metric and metric to inches. I'm always happy  email  the chart to you if you're unable to download it.  Thanks for visiting www.MachinistKalc.com . And remember to tell your friends about our affordable programs and free downloads. 

Today's download is a  Tapping and Threading Formulas chart. You'll get formulas for inch taps as shown in the image below as well as for metric taps, and also two examples of tap drill size calculations for both inch and metric. This  helpful chart is a must have for any machinist. Keep it on your phone or print it to keep in your toolbox. Contact me if you're unable to download the chart; I'll be happy to email it to you. Thanks again for visiting www.MachinistKalc.com . Have a nice day.

Today's tip is a chart for Pipe Thread Sizes  that you can download free of charge. This chart provides the Tap Thread Size, Approximate Inside Diameter, Approximate Outside Diameter, and Tap Drill Size of the most commonly used standard threaded pipe sizes. Find out more information about charts and other tools you should keep on your phone or in your toolbox for easy accessibility. Contact me if you have any trouble downloading this chart. Thanks for visiting wwwMachinistKalc.com today. 

Today's tip is a Metric Thread Pitch Conversion Chart . As you can see in the sample image below, the chart includes conversions for metric thread pitch, thread pitch in inches, threads per inch, and basic height. Great printed tool to keep nearby. Contact me if you have any questions or problems downloading this PDF file. Thanks for visiting www.MachinistKalc.com . 

Today, I'm offering a PDF download of a Metric Taps conversion chart. See the sample image below that shows the conversions that are available in this download. If you're unable to download this helpful tool , please contact me . I'll be happy to email the file to you.