Fabrication

The braid is constructed by weaving wire over a 3D-printed template. The template is designed to make actuators that have a 20 degree winding angle when surrounding a tube with a 3/8" outer diameter. The template is designed so that the braid length can be varied in multiples of 10 cm (10 cm, 20 cm, 30 cm etc.). The actuator we present here is designed to work with a 30 cm braid.

Bill of Materials

Quantity
Unit (ea,pkg,ct)
Item#
Description
Unit Price
Link
100
ft
Daburn 2671/22
Black 22 AWG Ultra Flexible Wire
$1.68
>1
ft
McMaster 5236K512
Very Soft Silicone Tubing (3 psi rating)
$1.44
1
pkg
McMaster 9579K65
Hose Clamps
$8.43
1
pkg
McMaster 5463K578
Barbed End-Fitting
$5.37
1
pkg

McMaster 5463K578

Washers to Loop Wires over
$8.79
1
ea

McMaster 97015k77

1/2" Diameter Dowel for 3D-Printed Template
$2.67
6
pcs
--
Big Piece from 3D-Printed Template
--
--
6
pcs
--
Little Piece from 3D-Printed Template
--
--
Miscelaneous
Scotch tape, Super glue, Large zip ties
Tools
Pliers, Small flat-head screw driver