Parts Information

LEAP Hand can be assembled in under three hours. Visit Assembly for Instructions.

LEAP Hand Full costs under $2000.
Lite is identical in construction, assembly and control.
It has weaker, less durable motors. Good for education or demos and costs ~$700.
We have now have full parts kits of LEAP Hands available in limited numbers!!! Please email me!
Please email me with any questions at kshaw2@andrew.cmu.edu

Dynamixel Components



Item Name Quantity Cost (ea.) Total
DYNAMIXEL XC330-M288-T

For Lite, substitute Full Motors with weaker motors
DYNAMIXEL XL330-M288-T
Buy either Full OR Lite.

These often go out of stock,
check in with Dynamixel Support
if you need it quickly.
International Site
16 Full: $89.99

Lite: $23.90
Full: $1439.84

Lite: $382.40
DYNAMIXEL FPX330-H101 11 $9.80 (4 pc) $29.40
DYNAMIXEL FPX330-S101 10
In large accidents,
these will break to protect
the rest of the hand.
Buy extras if you need.
$9.80 (4pc) $29.40
DYNAMIXEL FPX330-S102 6 $9.80 (4pc) $19.60
DYNAMIXEL U2D2 1 $32.10 $32.10
DYNAMIXEL Power Hub
You can also build your own
power cable with 5 dynamixel leads
and 1 power lead instead for
a cleaner setup. See Instructions.
1 $19.00 $19.00
XT30 Pigtail
Use this to build your own cable instead of the PowerHub.
These are not strictly necessary, but they're helpful:
JST EH Cable (15x)
JST EH Housing (5x)
1 $9.00 $9.00
Other Misc. Parts
Name Quantity Cost (ea.) Total
M3 6mm 3D printer Inserts 5 $19.00 (variety) $19.00
M2 6mm 3D printer Inserts 24 Variety Pack N/A
M2 8mm Screws 16 $19.00 (variety) $19.00
M2 10mm Screws 24 $19.00 (variety) $19.00
M2 6mm Screws 4 Variety Pack N/A
M3 6mm Screws 5 Variety Pack N/A
Polymaker PLA Pro (~200g) 1 $19.99 $19.99
Ninjaflex Edge (100g) 1 $49.44 $49.44
Power Supply (5v 30a) 1 $19.99 $19.99
Power Cable AC
(Change for your Country)
1 $7.00 $7.00
14 AWG 5v Cable 1 $9.99 $9.99
Grip Tape 1 $29.99 $29.99
Cost (Regular):
As of Aug 2023

Dynamixel: $1578.34

Other Parts: $193.40

Total: $1771.74


Cost (Lite):
As of Aug 2023

Dynamixel: $520.90

Other Parts: $193.40

Total: $714.30

Contact us at kshaw2@andrew.cmu.edu if you need help obtaining parts.

Tools Required

Name Quantity Cost (ea.) Total
M2 and M3 Hex Wrenches 1 $9.99 (variety) $9.99
Phillips: PH00 Screwdriver 1 $9.99
(Highly recommend a
motorized screwdriver)
$9.99
Ender 3 S1 1 $299.99 $299.99
Soldering Iron
These tips are useful but not necessary.
1 $12.99 $12.99

3D Printed Parts

Item Name Quantity
Palm Lower 1
Palm Upper
This depends on your arm.
We provide xArm mounting as well
as a blank that you can
customize to your arm.
1
Cable Spacer
5
MCP Bracket
3
DIP Spacer
3
Fingertip (Soft or Hard)
4

Please go to the CAD tab to download the files.

Printer:

We use Ender 3 S1 Pro.
Any deposition-based printer will work, but direct drive such as S1 is required for flexible filament.

Software:

I recommend Cura 5, choose your correct printer. With Cura and the regular quality setting, all parts can be printed in under 24 hours.

Settings (PLA):
  • Palm: 60% Infill, supports.
  • Rest: 100% Infill, no support.
  • 200C Nozzle and 60C Bed
  • Settings (Ninjaflex Edge for Optional Soft Fingertips):
  • 20% Infill, no support.
  • 240C Nozzle and 60C Bed
  • ~25 mm/s speed