Mechanical Math#

Using math to my your life easier.

Standards#

It is important to always use standardized measurements for everything we do so every part is easy to make and repeat.

We typically work with measurements that are Imperial (Inches), but sometimes we will have to work with parts that are in the Metric system (Millimeters).

Inches are indicated with a (") after a number and feet are indicated with a (').
Ex: 1.5" this measurement is 1.5 inches
Ex: 1'3" this measurment is 1 foot, 3 inches

There is a wide range of measuring tools such as: Rulers, Tape Measures, Calipers, and Micrometers

Imperial#

Many imperial measurements are based on fractions of inches, or thousandths of inches.

Fractions#

Fractional measurements are typically based on 1/16ths, 1/8ths, 1/4ths, or 1/2nds increments of whole inches.

Some of the most common fraction imperial measurements we use are:

• 1/16" (0.0625")
• 1/8" (0.125")
• 3/16" (0.1875")
• 1/4" (0.25")
• 1/2" (0.5")
• 3/4" (0.75")
• 1"

Some more precise measurements are:

• 3/8" (0.375")
• 5/8" (0.675")
• 7/8" (0.875")

Thousandths#

Thousandths measurements are based off of how many thousandths of an inch a measurement is.

Thousandths examples:

• 1" (1000 thousandths of an inch (1 inch))
• .1" (100 thousandths of an inch)
• .01" (10 thousandths of an inch)
• .001" (1 thousandth of an inch)