hexapod/mechanism/BOM.md

# Bill of Materials

## Servo - MG92B

Servo is the key component. I use TowerPro [MG92B](http://www.towerpro.com.tw/product/mg92b/). It has metal gear (important!).
An hexapod requires 18 of them.

>    The dimension of 3d printed part is highly depended on servo's dimension.<br>
>    Modification is required if you want to use other alternative servo. 

>    TowerPro MG92B can be found on Ebay seller [servohorns959](https://www.ebay.com/usr/servohorns959), which is listed on TowerPro official website ([Link] (http://www.towerpro.com.tw/about-us-2/)). <br>I also got mime servo from him.


## 3D-Printed Parts

### Body x 1

Filename | Thumbnail | Required |
-------- | --------- | -------- |
body_top | ![body_top](files/body_top.jpg) | 1 |
body_bottom | ![body_bottom](files/body_bottom.jpg) | 1 |
body_center | ![body_center](files/body_center.jpg) | 1 |
body_side_wall | ![body_side_wall](files/body_side_wall.jpg) | 2 |
body_back_wall | ![body_back_wall](files/body_back_wall.jpg) | 1 |

### Leg x 6

Filename | Thumbnail | Required |
-------- | --------- | -------- |
thigh_top | ![thigh_top](files/thigh_top.jpg) | 1 (x6) |
thigh_bottom | ![thigh_bottom](files/thigh_bottom.jpg) | 1 (x6) |
joint_cross | ![joint_cross](files/joint_cross.jpg) | 1 (x6) |
joint_top | ![joint_top](files/joint_top.jpg) | 2 (x6) |
joint_bottom | ![joint_bottom](files/joint_bottom.jpg) | 2 (x6) |
leg_top | ![leg_top](files/leg_top.jpg) | 1 (x6) |
let_bottom | ![leg_bottom](files/leg_bottom.jpg) | 1 (x6) |
foot_top | ![foot_top](files/foot_top.jpg) | 1 (x6) |
foot_bottom | ![foot_bottom](files/foot_bottom.jpg) | 1 (x6) |
foot_ground | ![foot_ground](files/foot_ground.jpg) | 1 (x6) |
foot_tip | ![foot_tip](files/foot_tip.jpg) | 1 (x6) |

### Tools

Filename | Thumbnail | Required |
-------- | --------- | -------- |
tools_mount | ![tools_mount](files/tools_mount.jpg) | 1 

## Others

Name | Spec | Thumbnail | Required | Note
---- | ---- | --------- | -------- | ----
Screw | M2 6mm | ![6mm](files/M2_6mm.JPG) | 54 | Servo Arm: 1 x 18<br>Joint: 4 x 6<br>Thigh: 2 x 6
Screw | M2 12 or 10mm | ![10mm](files/M2_10mm.JPG) | 6 | Thigh: 1 x 6<br>12mm is better<br>(10 is also ok if 12 is hard to find)
Screw | M2 30mm | ![30mm](files/M2_30mm.JPG) | 36 | Servo: 2 x 18
Nuts | M2 | ![6mm](files/M2_nut.JPG) | 36 | Servo: 2 x 18
Bearing | 8x4x3 mm | ![bearing](files/bearing.JPG) | 18 | Servo: 1 x 18
Cooper/Aluminum Tube | 6 (height) x 4 (dia.) | ![tube](files/tube_6x4mm.JPG) | 18 | Servo: 1 x 18