# Precision Machine Design Articles

Precision machine design is the discipline of designing a device so it can hold a position, move to a position, or follow a position with a level of accuracy that is many orders of magnitude smaller than the size of the device itself. While traditional mechanical engineering is the domain of stress, precision machine design is the domain of deflection.

## What Is Precision Engineering?

What is precision engineering? What fundamental difference sets it apart from “traditional” mechanical engineering, and how can that understanding help make your precision design a success?

## Accuracy, Repeatability, and Resolution in Precision Machines and Instruments

Designing a successful precision machine or instrument depends on understanding accuracy, repeatability, and resolution – and especially the limiting relationship between accuracy and repeatability.

## A Visual Guide to Kinematic Mount Design

Kinematic mount design can be complicated. But it doesn’t have to be. This visual how-to guide highlights the decisions, criteria, and calculations involved in designing a robust, highly repeatable kinematic mount. Color-coding...

## Laying Out a Kinematic Mount Using the Maxwell Criterion

In this video, we look at how to layout a kinematic mount and optimize the design for stability...

## Modeling and Design of a Kinematic Mount in CAD (Using SolidWorks)

Kinematic mounts are one of the most powerful tools in precision machine design and optomechanical...

## The Principle of Kinematic Constraint

The advantage of a kinematic mount is that it locates one rigid body relative to another with very high repeatability, without over-constraining the body or introducing instability. It accomplishes this by using the precise number (and arrangement) of contact points needed to allow the desired degrees of freedom – no more and no less. That is the principle of kinematic constraint, which this article will show how to apply in your designs.

## Stiffness and Strength: Materials for Precision Machine Design

Precision machine design and optomechanical engineering are the domain of deflection – designing a thing so it can hold a position, move to a position, or follow a position with a level of accuracy that is many orders of magnitude smaller than the size of the thing itself.