🛒 Bill of Material#
💵 Total Cost#
Note
Doesn’t include cost of 3D printing, tools, shipping and taxes.
Price |
US |
EU |
CN |
IN |
|---|---|---|---|---|
Basic (use your laptop, single RGB head cam) |
~$660 |
~€680 |
~¥3999 |
~₹87000 |
↑ Stereo dual-eye RGB head cam |
+$30 |
+€30 |
+¥199 |
+₹6550 |
+ RaspberryPi |
+$79 |
+€79 |
+¥399 |
+₹7999 |
↑ RealSense RGBD head cam |
+$220 |
+€230 |
+¥1499 |
+₹35726 |
Tip
You can purchase printed parts or pre-assembled kits from Wowrobo for SO101 arms. The SO101 arms require about 1.5 hours assembly for two arms.
Note
If you already have SO101 arms or Lekiwi, refer to this BOM selectively. We recommend checking the other two repos (SO100, Lekiwi) as well for potentially better-priced options.
🔨 Assembly Tools#
Skip this section if you already have these tools:
Part |
Amount |
Unit Cost (US) |
Buy (US) |
Unit Cost (EU) |
Buy (EU) |
Unit Cost (CN) |
Buy (CN) |
Unit Cost (IN) |
Buy (IN) |
|---|---|---|---|---|---|---|---|---|---|
M3 Screws and Nuts Set (come with the L-shape screw driver) |
1 |
$14.99 |
€23.5 |
¥40 |
₹1699 |
||||
Flush cutter |
1 |
$6.99 |
€23.5 |
¥5.8 |
₹297 |
||||
Screwdriver Set |
1 |
$6 |
€10 |
￥20 |
₹448 |
Use a flush cutter to cut the metal mesh for cable routing.
This tool list is just a reference—you can use any tools that will accomplish the task, primarily for driving hex and cross-head screws.
9x M4x10 screws are also needed for wheels assembly.
⏫ Feature Parts#
Part |
Amount |
Unit Cost (US) |
Buy (US) |
Unit Cost (EU) |
Buy (EU) |
Unit Cost (CN) |
Buy (CN) |
Unit Cost (IN) |
Buy (IN) |
|---|---|---|---|---|---|---|---|---|---|
STS3215 Servo (12V) |
17 |
$14 |
€16 |
￥97 |
₹2097 |
||||
IKEA RÅSKOG Utility cart |
1 |
$39.99 |
€39.99 |
￥249 |
₹2600 |
||||
Anker SOLIX C300 Power Station |
1 |
$179.99 |
€169.99 |
￥899 |
₹27899 |
||||
4” Omni wheels |
3 |
$9.99 |
€24.5 |
￥135 |
₹4380 |
||||
Table Clamp 4pcs |
1 |
$8.99 |
~€8 |
￥9.2 |
₹772 |
XLeRobot is designed to be practical, which is why it only comes in a 12V version. You can also purchase for STS3250 servo (1.5x torque, 3x price) for extreme performance.
17 motors = 12 for arms + 3 for base + 2 for head.
Any battery/power bank/power station that supports two 60W+ USB-C fast charging should work. Here are some other potential options (not tested), these brands should be available both in US and China.
For India, some alternative power bank sources are:
💻 Electronics#
Part |
Amount |
Unit Cost (US) |
Buy (US) |
Unit Cost (EU) |
Buy (EU) |
Unit Cost (CN) |
Buy (CN) |
Unit Cost (IN) |
Buy (IN) |
|---|---|---|---|---|---|---|---|---|---|
Raspberry Pi 5 (Optional) |
1 |
$60.00 |
€57.00 |
￥410 |
₹7,999 |
||||
Motor Control Board |
2 |
$10.55 |
€12.00 |
￥24 |
₹4041 |
||||
microSD card |
1 |
$11.23 |
€10.00 |
￥58 |
₹739 |
||||
USB-C to USB-A Cable 2 pcs |
1 |
$8.99 |
€7 |
￥17 |
₹799 |
||||
USB-C Cable 2 pcs |
1 |
$8.99 |
~€7 |
￥17 |
₹899 |
||||
Anker USB Hub |
1 |
$15.99 |
￥52 |
₹699 |
|||||
4ft 5264 wires |
1 |
$21.99 |
~€20 |
¥20 |
Taobao 3P-1000mm and 5264 connector |
₹7209 |
|||
Type C to DC wire(12V) |
2 |
$8.99 |
~€8 |
¥20 |
₹659 |
Raspberry Pi 5 is optional, you can just connect XLeRobot to your laptop for an easier setup.
Ready-made long 5264 wires are not available for purchase in the US—only connector kits are available that require manual assembly to extend the length (still easy).
In India, one may buy the connectors individually from Sharvi Electronics and assemble them.
2 USB-C to USB-A cables to connect the Motor Control Board to Raspberry Pi/PC, USB-C to USB-C cables are also OK as long as your computer supports.
USB-C cable to connect Raspberry Pi to the battery
Two Type-C to DC cables (12V) connect the motor control board to the power supply.
📷 Sensors#
Part |
Amount |
Unit Cost (US) |
Buy (US) |
Unit Cost (EU) |
Buy (EU) |
Unit Cost (CN) |
Buy (CN) |
Unit Cost (IN) |
Buy (IN) |
|---|---|---|---|---|---|---|---|---|---|
Hand camera |
2 |
$12.98 |
~€10 |
￥99 |
₹3278 |
||||
Logitech C920 |
1 |
$66 |
￥309 |
₹8459 |
|||||
RealSense D415 (Optional for Pro) |
1 |
$272 |
￥1950 |
₹35726 |
🧑🤝🧑 Alternative choices#
IKEA Cart: You can use a similar cart not from IKEA; however, this may require minor adjustments to the base connector in 3D printed parts.
Batteries: You can use other batteries, but ensure the maximum output capacity can adequately power 2 arms and 3 wheels(~120W=60W*2 ports) (and a RaspberryPi (40W) if you have one).
Electronics: You can use any brand of cables (USB-C cable must be fast-charging type), microSD card, and Raspberry Pi 5 as long as they are compatible.
🧩 Optional Add-ons#
🫱Soft Gripper Design: The .3mf file contains soft finray fingers that need to be printed with TPU95A. If you want original SO101 finger, just download the original SO101.stl file.
✊Better grip stability: 3M gripper tape (got it from UMI gripper specifications) Or any other cheaper one (such as tennis grip tape).
🙌Dual-arm leader-follower joint control: Additional two SO100 arm sets for dual-arm leader-follower joint control
👗Sleeves: To hide the cables and give XLeRobot a better outfit, just buy the cheapest sport sleeves you can find. I bought one randomly on Amazon.
👀VR control: Meta Quest 3 (or 3S)
For more add-ons and accessories, check out the SO101 arm repository