# 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 |  | 1 |
body_bottom |  | 1 |
body_center |  | 1 |
body_side_wall |  | 2 |
body_back_wall |  | 1 |
### Leg x 6
Filename | Thumbnail | Required |
-------- | --------- | -------- |
thigh_top |  | 1 (x6) |
thigh_bottom |  | 1 (x6) |
joint_cross |  | 1 (x6) |
joint_top |  | 2 (x6) |
joint_bottom |  | 2 (x6) |
leg_top |  | 1 (x6) |
let_bottom |  | 1 (x6) |
foot_top |  | 1 (x6) |
foot_bottom |  | 1 (x6) |
foot_ground |  | 1 (x6) |
foot_tip |  | 1 (x6) |
### Tools
Filename | Thumbnail | Required |
-------- | --------- | -------- |
tools_mount |  | 1
## Others
Name | Spec | Thumbnail | Required | Note
---- | ---- | --------- | -------- | ----
Screw | M2 6mm |  | 54 | Servo Arm: 1 x 18< br > Joint: 4 x 6< br > Thigh: 2 x 6
Screw | M2 12 or 10mm |  | 6 | Thigh: 1 x 6< br > 12mm is better< br > (10 is also ok if 12 is hard to find)
Screw | M2 30mm |  | 36 | Servo: 2 x 18
Nuts | M2 |  | 36 | Servo: 2 x 18
Bearing | 8x4x3 mm |  | 18 | Servo: 1 x 18
Cooper/Aluminum Tube | 6 (height) x 4 (dia.) |  | 18 | Servo: 1 x 18
