Call be crazy but anytime I have to do the same calculation twice I start thinking about how to automate the process. The result is that I make a bunch of excel calculators & technical cheat sheets. You are invited to download these documents and use them as you wish, everything here is free and always will be! –Enjoy!
Last Updated: November 2016
|Bolt Sizing Calculator (EXCEL)||Calculate the strength of any size fastener.|
|Heat Sink Quick Reference (PDF)||Quickly design a custom heatsink.|
|Strength of Materials Calculator (EXCEL)||Calculate the strength of simple beams.|
|Clevis Sizing Calculator (EXCEL)||Calculate clevis strength and hole tearout forces.|
|Wire Gauge Sizing Calculator (EXCEL)||Calculate the ampacity of electrical wire.|
|Shaft Key Sizing (EXCEL)||Calculate the torque rating of shafts and keys.|
|Air Cylinder Force Calcs (EXCEL)||Calculate the force from pressure cylinders.|
|Ball Screw Calculator (EXCEL)||Determine the buckling load and critical speed of ball screws and lead screws.|
|Electric Motorcycle Calculator (EXCEL)||Estimate the performance of an electric motorcycle design prior to building one.|
|Engineering Economics Calculator (EXCEL)||Engineering economics class in an nutshell|
|Investment Portfolio Performance Tester (EXCEL)||Intended as a pseudo-realistic illustration of how an investment portfolio might perform over time.|
|Financial Survival Pocket Guide (PDF)||Provides a succinct yet solid baseline for money management and investing skills.|
|Simple BOM for Hobby Grade Use (EXCEL)||Provides a starting point for a DIY grade bill of materials. Example provided is the TestrBot project.|
|3D Printed Part Cost Calculator (EXCEL)||Calculate the cost per assembly of kits containing 3d printed and non-printed components|
*This list is a perpetual work in progress. Check back every once in a while to see whats new! (I also take requests)
**The calculator excel documents are protected for quality purposes, use the TAB button to cycle through the unlocked cells.
***I cannot claim responsibility for any unintended consequences caused by the use or misuse of these resources.