CNC Knowledge: Thread formula algorithm, you must forget the seventh!

1. Calculation of the formula to include the internal opening of the teeth:

Official: Outside diameter -1/2 × Crocs distance

Example 1: Official: M3 × 0.5 = 3- (1/2 × 0.5) = 2.75 mm

M6 × 1.0 ＝ 6－ (1/2 × 1.0) ＝ 5.5 mm

Example 2: Official: M3 x 0.5 = 3- (0.5 ÷ 2) = 2.75 mm

M6 × 1.0 ＝ 6－ (1.0 ÷ 2) ＝ 5.5 mm

Second, the general British silk attack formula:

1 inch = 25.4 mm (code)

Example 1: (1 / 4-30)

1/4 × 25.4 = 6.35 (dental diameter)

25.4 ÷ 30 = 0.846 (dental distance)

Then, 1/4-30 is calculated as a response from the public tooth: M6.35 × 0.846

Example 2: (3 / 16-32)

3/16 × 25.4 = 4.76 (dental diameter)

25.4 ÷ 32 = 0.79 (dental distance)

Then 3/16-32 is calculated as public teeth: M4.76 × 0.79

Third, general changes based on British teeth with public teeth formula:

Molecular ÷ mother × 25.4 = outside diameter (same as above)

Example 1: (3 / 8-24)

3 ÷ 8 × 25.4 = 9.525 (external diameter)

25.4 ÷ 24 = 1.058 (distance from public tooth)

Then, 3/8-24 is calculated as a response from the public tooth: M9.525 × 1.058

Fourth, dental dental formula made-US-US:

Example: 6-32

6-32 (0.06 + 0.013) / Code × 6 = 0.138

0.138 x 25.4 = 3.505 (outside diameter)

25.4 ÷ 32 = 0.635 (dental distance)

Then, 6-32 is calculated as public teeth: M3.505 × 0.635

1. Calculation formula in the diameter of the hole:

The outside diameter -1/2 × dental distance must be:

M3.505－1 / 2 x 0.635 ＝ 3.19

Then 6-32 The diameter of the interior pores must be 3.19

2. Press the inner hole algorithm of the compression:

Simple calculation formula of the lower opening 1:

Outside diameter – (Dental distance × 0.4250.475) / Code = lower opening

Example 1: M6 x 1.0

M6- (1.0 × 0.425) = 5.575 (maximum diameter of the lower hole)

M6- (1.0 × 0.475) = 5.525 (minimum)

Example 2: simple calculation formula to cut the interior diameter of the cut:

M6- (1.0 × 0.85) = 5.15 (maximum)

M6- (1.0 × 0.95) = 5.05 (minimum)

M6- (Dental distance × 0.860.96) / Code = Diameter of the lower hole

Example 3: M6 × 1.0 = 6-1.0 = 5.0 + 0.05 = 5.05

5. Easy formula calculation of dental pressure Outside diameter:

1 and 1 diameter -0.01 × 0.645 × dental distance (requires regulations to stop regulations)

Example 1: m3 × 0.5 = 3-0.01 × 0.645 × 0.5 = 2.58 (outside diameter)

Example 2: M6 × 1.0 = 6-0.1 × 0.645 × 1.0 = 5.25 (outside diameter)

6. Calculation formula for the public tooth tuning diameter: (Calculation of the complete tooth)

Example 1: M3 × 0.5 = 3-0.6495 × 0.5 = 2.68 (front diameter before)

Example 2: M6 × 1.0 = 6-0.6495 × 1.0 = 5.35 (front diameter)

Seven, depth of the outside diameter of the flower (outside diameter)

Outside diameter ÷ 25.4 × Flower tooth distance = pressed the front diameter of the flower

Example: 4.1 ÷ 25.4 × 0.8 (flower distance) = 0.13 The flower depth must be 0.13

8. Dialogue conversion formula for polygonal materials:

1 and 1 Correct shape: Dove × 1.414 = diagonal diameter

2 pentagon: dummy decal × 1.2361 = diagonal diameter

3 and 3 hexagonal: dialogue diameter × 1.1547 = diameter of dialogue

Formula 2: 1. Four corner: dialogue ÷ 0.71 = diagonal diameter

2 hexagonal: dialogue ÷ 0.866 = diagonal diameter