#  Fabrication 

 



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This section, divided into the following three parts, introduces a method to fabricate the actuation system.

- Machining and Printing Parts  
    Introduces some machining methods to make custom parts for the pump
- Assembly of the Pump  
    Introduces the way of assembly of the pump step by step
- Assembly of the System  
    Introduces the way of assembly of McKibben actuators and connecting components.

## Bill of Materials

We provide here a BOM for the pump. Most of the parts were purchased through Japanese online stores. You can replace unavailable parts with equivalent parts that you can buy.

#### Parts

Sort**Parts**

**Manufacturer's number  
or specification**

**Custom  
parts**

**Material**

**Qty**

DC motor

Maxon DC motor 273752





1

Rotary encoder

CUI AMT103





1

Oil seal mounting



Milling

POM 7mm

1

O-ring

NOK 1A S-20





1

Oil seal

NOK SC6167





1

Low profile cap screw

M2.5x6mm





6

Motor mounting



Milling

POM 15mm

1

M2.5 insert screw

Ensat 302 000 025





5

M3 insert screw

Ensat 302 000 030





2

Cover side plate



Wire EDM

Oil-less slide plate 2.5mm

1

Rotor casing



Milling

Aluminium

1

O-ring

NOK 1A S29





1

Shim ring



Wire EDM

Stainless steel 1mm

1

Bottom slide plate



Wire EDM

Oil-less slide plate 2.5mm

1

Thin bearing

NMB DDA-2520





2

Outer rotor



EDM

Stainless steel 9.5mm

1

Inner rotor



EDM

Stainless steel 9.5mm

1

Stainless steel spacer

Hirosugi CU-2616PH 





3

Stainless steel cap screw

M2.5x20mm





2

Outlet casing



3D printing

Nylon

1

Tube fitting (inner hex, straight type)

PISCO POC8-01





2

Fitting (plug type)

PISCO SLP-M5 





1

Fitting (barb straight type)

PISCO SLC-0640-M5





1

O-ring

NOK 1A SS-145





2

Stainless steel cap screw

M2.5x25mm





3









/unit

Braided outer mesh

Lay flat width: 12mm





1

Silicone tube

Outside diameter: 10mm  
Internal diameter: 8mm







1

Tube fittings (Unequal plug-in, straight)

PISCO PGJ10-8 





1

Tube fittings (Unequal plug-in, straight)

PISCO PGJ10-6





1

Plastic hose clamps 

Hellermann Tyton SNP-6 





2

Cable ties







4

Tube fitting (Cap type)

PISCO PPF6





1





#### Tools and Consumable

Other than the previous list, the following tools will be needed.

- Silicone oil
- Denatured alcohol
- M5 tap
- Rc 1/8 (short type) tap

**Machines**

- CNC milling machine
- Wire EDM