Making pneumatic connectors in Fusion 360

By | 26/02/2017

I had a couple of pneumatic connectors lying around leftover from my compact XEONs water cooling section. They are  G1/4″ .

The standards for the threads

It has threading has a diameter of 1/4″. The typical computer cooling tubes in North America tends to be larger tubes like 1/2″ while Europe typically kicks around with 3/8″ or 1/4″.

In this page, there are more details about the standards in pneumatic connectors.

 Thread
designation
Diameter
Inch
Diameter
Outside
mm
diameter
Nut
mm
Diameter
Tap hole
mm
Threads
per
inch
G 1/8″  1/8 9.73 8.85 8.80 28
G 1/4″ 1/4 13.16 11.89 11.80 19
G 3/8″ 3/8 16.66 15.39 15.25 19
G 1/2″ 1/2 20.95 19.17 19 14
G 3/4″ 3/4 26.44 24.66 24.5 14
G 1″ 1 33.25 30.93 30.75 11
G 1 1/4″ 1 1/4 41.91 35.59 39.25 11
G 1 1/2″ 1 1/2 47.80 45.48 45.25 11
G 2″ 2 59.61 57.29 57 11

Gewinde C max.png

Thread
diameter
C max [mm]
M3 3.3
M5 4.3
M7 5.8
G 1/8 6.5
G 1/4 8
 G 3/8 9
G 1/2 10.5
G 3/4 12
G 1 13

 

How to make threads in Fusion360

Fusion360 has a thread making feature. It determines M/F, all you have to choose the standard from a drop-down menu. The G 1/4″ that I have in stocks is listed under BSP pipe threads.

  1. Create a cylinder that will hold the threads
  2. Make a hole, that is around the thread diameter size (exact value will be adjusted by Fusion360)
  3. From “Create” select threads, and select the hole surface. The threads dialog will change the hole diameter accordingly. One word of caution: Make sure “Modelled” is checked. Otherwise Fusion360 makes a thread decal instead of actual threads (probably intended for thread making tools later). However the Form2 is perfectly capable of making threads, and no further steps are necessary.

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