diff --git a/README.md b/README.md
index d8e204f..c09fb15 100644
--- a/README.md
+++ b/README.md
@@ -19,84 +19,7 @@ The table below shows the difference between this project and the original one.
| Remote | BLE | WiFi |
| Remote software | Android and iOS | PC, Android (WIP) |
-
-## Mechanism
-
-### 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. Modification is required if you want to use other alternative servo.
-
-#### 3D-Printed Parts
-
-##### Body x 1
-
-Filename | Thumbnail | Required |
--------- | --------- | -------- |
-body_top | ![body_top](imgs/body_top.jpg) | 1 |
-body_bottom | ![body_bottom](imgs/body_bottom.jpg) | 1 |
-body_center | ![body_center](imgs/body_center.jpg) | 1 |
-body_side_wall | ![body_side_wall](imgs/body_side_wall.jpg) | 2 |
-body_back_wall | ![body_back_wall](imgs/body_back_wall.jpg) | 1 |
-
-##### Leg x 6
-
-Filename | Thumbnail | Required |
--------- | --------- | -------- |
-thigh_top | ![thigh_top](imgs/thigh_top.jpg) | 1 (x6) |
-thigh_bottom | ![thigh_bottom](imgs/thigh_bottom.jpg) | 1 (x6) |
-joint_cross | ![joint_cross](imgs/joint_cross.jpg) | 1 (x6) |
-joint_top | ![joint_top](imgs/joint_top.jpg) | 2 (x6) |
-joint_bottom | ![joint_bottom](imgs/joint_bottom.jpg) | 2 (x6) |
-leg_top | ![leg_top](imgs/leg_top.jpg) | 1 (x6) |
-let_bottom | ![leg_bottom](imgs/leg_bottom.jpg) | 1 (x6) |
-foot_top | ![foot_top](imgs/foot_top.jpg) | 1 (x6) |
-foot_bottom | ![foot_bottom](imgs/foot_bottom.jpg) | 1 (x6) |
-foot_ground | ![foot_ground](imgs/foot_ground.jpg) | 1 (x6) |
-foot_tip | ![foot_tip](imgs/foot_tip.jpg) | 1 (x6) |
-
-#### Others
-
-Name | Spec | Thumbnail | Required | Note
----- | ---- | --------- | -------- | ----
-Screw | M2 6mm | ![6mm](imgs/M2_6mm.JPG) | 54 | Servo Arm: 1 x 18
Joint: 4 x 6
Thigh: 2 x 6
-Screw | M2 10mm | ![10mm](imgs/M2_10mm.JPG) | 24 | Thigh: 1 x 6
Pin lock: 1 x 18
-Screw | M2 30mm | ![30mm](imgs/M2_30mm.JPG) | 36 | Servo: 2 x 18
-Nuts | M2 | ![6mm](imgs/M2_nut.JPG) | 36 | Servo: 2 x 18
-Pin (304) | M4 6mm | ![pin](imgs/pin_M4_6mm.JPG) | 18 | Servo: 1 x 18
-
-### Leg Assemble
-
-![LegAssemble](imgs/mech_leg_exploded.jpg)
-
-Please check [Leg Assemble](LEG.md) for more detail instructions
-
-Leg assembly instruction video https://youtu.be/oaAE5fC09KQ is also available.
-
-
-> Note. Total 6 Legs are required.
-
-
-## Skill requirement
-
-If you want to make one hexapod by yourself. You should at least knows how to:
-
-* Mechanism part
- * Use `3D printer` to print a model.
- * Able to adjust 3D model to fit your custom need.
-* Electronics
- * Make a `PCB` (suggest to use professional PCB services)
- * Soldering `SMD` component (0805 and TSSOP28)
- * How to use/charge/store `LIPO batteries`
-* Software
- * Use `Linkit 7697` (ie. upload and run any program)
- * Use `LRemote` to communicate 7697 and your mobile phone
-
-## Table of Content
+## Instructions
1. [Mechanism](mechanism/) - How to build the body
1. [Electronics](electronics/) - Circuit explanation