#  Pneumatic Networks  

 



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 This section contains detailed step-by-step instructions for making a pneumatic networks manually.

Sort    As explained in the [design of pneumatic network](/hpn-manipulator/design/pneumatic-networks) section, the pneumatic network consists of 8 segments. The two adjacent segments are connected by a long silicone tube that is round. Further more, each segment has two airbag chambers which are connected by a short silicone tube.

 

    ![airbags_line3](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/srtsandbox/files/airbags_line3.png?itok=PDxDAZXN) 

 

 

 



####  Process overview 

Sort      ![fab_pneunet1](/sites/g/files/omnuum4601/files/styles/hwp_1_1__720x720_scale/public/srtsandbox/files/fab_pneunet1.png?itok=EYMWsvui) 

 

 

  Prepare air bags

 The main body of pneumatic network is Air Column Bags whose material is PA/PE. The first setp to fabricate pneumatic network is cut a single column of air bag off.

 

      ![fab_pneunet2](/sites/g/files/omnuum4601/files/styles/hwp_1_1__720x720_scale/public/srtsandbox/files/fab_pneunet2.png?itok=4A-kiWTp) 

 

 

  Prepare silicone tubes

 Silicone tubes is used inside of pneumatic network to make it inflate fast. In this step, we cut silicone tube into 2 sizes.

 

      ![fab_pneunet3](/sites/g/files/omnuum4601/files/styles/hwp_1_1__720x720_scale/public/srtsandbox/files/fab_pneunet3.png?itok=Sz-PQ43s) 

 

 

  Heat sealing

 Using the technology of heat sealing, we can divide a long air column bag into a series of air chambers. In this step, silicone tubes were put inside of channels when sealing.

 

      ![fab_pneunet4](/sites/g/files/omnuum4601/files/styles/hwp_1_1__720x720_scale/public/srtsandbox/files/fab_pneunet4.png?itok=5hSuFnde) 

 

 

  Seal

 This is the last step to finish the fabrication of pneumatic network. In this step, a plastics straight through connector was sealed inside of the channels with hot glue.