Fashionstar StarAi Viola + Violin — 7-DoF Leader/Follower Robot Arm Set for LeRobot and ROS 2, Pre-Assembled
Fashionstar StarAi Viola + Violin — 7-DoF Leader/Follower Robot Arm Set for LeRobot and ROS 2, Pre-Assembled
Free shipping within Sweden from 470 SEK
Under 470 SEK: 65 SEK. Rest of the EU from 229 SEK, depending on weight. Every parcel is tracked.
Need a larger quantity?
Volume pricing for schools and companies
Get a quote with price and lead time for larger quantities.
For schools, companies, clubs and project orders.
A pre-assembled pair of 6+1 degree-of-freedom robot arms for teleoperation and imitation learning: the Violin is the leader arm you move by hand, the Viola is the follower arm that copies it and carries the gripper. Recorded demonstrations can be used to train policies in Hugging Face LeRobot. The Viola follower is also supported in ROS 2, MoveIt and Gazebo. Compared with SO-ARM-class kits it has a longer reach, a payload of 300 g and a wrist that holds its position.
Specifications
- Configuration: Violin leader arm + Viola follower arm, both pre-assembled
- Degrees of freedom: 6 + 1 (gripper) per arm, wrist rotation
- Reach: 470 mm, span 940 mm
- Payload (Viola): 300 g at 70 % reach
- Repeatability (Viola): 2 mm
- Servos per arm: 2 × RX8-U50H-M, 4 × RA8-U25H-M, 1 × RA8-U26H-M
- Gripper: parallel gripper (Viola), wrist camera mount
- Leader arm: holds any position, handle button
- Communication: UC-01 communication hub
- Power: 12 V, 120 W per arm
- Software: LeRobot (both arms); ROS 2, MoveIt, Gazebo (Viola)
- Manufacturer part number (Seeed): 114090081
The arms need a 12 V supply rated for 120 W (10 A). The variant with power supply includes Seeed's 12 V 10 A adapter. A computer with LeRobot or ROS 2 and a camera are needed for training and are not included.
Shipping
Pre-order item, ordered from Seeed Studio when you place your order. Ships to Sweden and the EU.
Sweden: 65 SEK. Free shipping on orders from 470 SEK.
Rest of the EU: from 229 SEK.
Rest of the world: from 199 SEK. Some items ship only within Sweden or the EU, and the product page says so when that applies.
Outside Sweden, shipping depends on the weight of the parcel, and you see the exact price at checkout before you pay. Every parcel ships tracked, and an order may arrive in separate parcels at no extra cost. Some items are ordered from our supplier when you place your order, and some are sold as pre-orders. The product page says so when that applies. More in our shipping policy.
You have 14 days from delivery to change your mind, no reason needed. Start a return or cancel an order from your account at account.gadwave.com. Return the item within 14 days of telling us. You pay the return postage to us in Kalmar, and we refund the item plus standard delivery within 14 days.
As a consumer you have a three-year right to complain about faults under Swedish consumer law. If something arrives broken or faulty, email gadwave@arnvak.com with your order number and photos, and we will replace it or refund you.
Full details in our returns and refund policy.