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Neufangled Robotics is presenting Stringman, an open-source cable-driven robot priced at $795, with four ceiling-mounted anchors and a gripper intended to move objects around a room. The company reports an average payload of 1.9 kg in a specified 7 × 7 × 3 m room, but those performance figures are company-provided; independent validation and broader deployment details are not included in the source material.
Neufangled Robotics is offering Stringman, a cable-driven, open-source robot listed at $795 that uses four ceiling-area anchors to move a gripper through a room. The company says it can carry an average payload of 1.9 kilograms in a 7 × 7 × 3 metre room, positioning the system as a lower-cost way to move objects between work areas without a mobile base or conventional robotic arm.
Stringman’s lines run from four anchors mounted near the ceiling to a gripper, whose position is controlled by changing line lengths. Neufangled says the robot is designed for room dimensions with an XY diagonal from 3 to 10 metres and ceiling heights from 2.3 to 4 metres. Its published specifications list a traverse speed of about 0.4 metres per second and a maximum payload of up to 2.2 kilograms near the floor.
The company’s payload comparison is tied to a specific setup: a 7 × 7 × 3 metre room, a 28-newton line-tension limit, and payload figures calculated after subtracting the 638-gram gripper and marker. Neufangled reports an average payload of 1.9 kilograms across that work volume. It compares this with a typical 0.75-metre serial arm using the same model of direct-drive actuator, estimating 0.32 kilograms of average payload for that arm. These are manufacturer-provided figures, not results from an independent test described in the material.
The project materials include mechanical CAD, circuit-board designs, software, build instructions and a bill of materials. Neufangled says the system is OSHWA certified and uses Raspberry Pi computers at the anchors and gripper, while a separate computer runs the controller. The company also describes a local-network operating option, with the interface served locally and AI models running on the owner’s hardware. The listed price is $795; the source does not detail what components or shipping costs are included in that amount.
A Different Way to Cover a Room
Stringman’s main distinction is its cable-driven layout: rather than reaching only within a fixed arm’s radius or driving across the floor, it suspends a gripper from overhead lines. That could make it useful in a home laboratory or workroom where parts need to travel between stations and floor space is limited or cluttered. The company specifically pitches it as a courier for moving components between workcells.
The price and open design may also make room-scale robotics accessible to builders who could not justify a larger industrial installation. But the listed payload and volume-per-dollar comparison should be read as company claims tied to specified configurations. Practical value will depend on installation conditions, reliability, setup, the objects being moved and whether the system can perform useful tasks consistently outside demonstrations.
The design also brings trade-offs that wheeled robots and desktop arms do not share. It requires secure mounting near the ceiling and leaves lines crossing the room while installed. Neufangled says the lines sit near the ceiling when the robot is parked, but users still need to assess the space and people who will move through it.
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How the Cable System Works
The four anchors and lines define a work area within the room. By coordinating the motors, Stringman adjusts line tension and position to move its gripper among points in that area. Neufangled says the shared lifting force lets the motors contribute together, with payload capacity reaching its highest levels near the centre of the room, where the load is distributed more evenly.
According to the installation instructions, owners attach mounts to wall studs or structural columns, hang the anchors, connect the lines and run a calibration process. The company describes calibration as hands-off and taking about five minutes. It says the lines relax if tension reaches the 28-newton limit, allowing them to be pulled loose. That design description does not, by itself, establish how the system performs across different installations or in every possible contact scenario.
Neufangled reports that the robot has accumulated about 1,000 hours of testing in real homes. The source does not provide a testing log, participant details or failure-rate data. It also lists cameras at the anchors and gripper, and says the system can collect data for training new behaviours, with support for several robotics control approaches.
““Tension is all you need.””
— Neufangled Robotics
Open Questions on Deployment
The source is a product presentation from Neufangled Robotics, not an independent evaluation. It does not specify a dated launch announcement, availability by region, shipping terms, warranty, or exactly which hardware is included in the $795 listed price. It also does not provide independent measurements of payload, positioning accuracy, repeatability, or long-term component wear.
Installation depends on having suitable studs or structural columns and enough overhead clearance. Neufangled says ceiling fans can be accommodated by mounting the anchors at or below blade height, and that work areas can be adjusted around some fixtures. It also says a low-hanging object in the middle of the room can make installation unsuitable. The source offers no broader assessment of building-code, insurance or accessibility requirements.
Privacy and control claims also need to be distinguished by operating mode. The company says Stringman can run air-gapped on a local Wi-Fi network, while remote operation is available if an owner binds the robot to its service. Further technical detail on the remote data pathway and independent security review is not provided in the supplied material.
Availability and Independent Testing
The next useful milestones are clearer purchase and installation details, along with independent tests of the company’s payload and operating claims. Prospective builders can review the published CAD, electronics, software, bill of materials and build guide to determine whether the design and listed cost fit their space and technical skills.
Neufangled’s materials describe APIs and tools for controlling the robot and collecting training data, suggesting that developers may test it in home-lab workflows. The source does not set out a release schedule for future hardware or software, and it is not clear whether the company plans to publish standardized performance results. Until such information is available, buyers will need to treat the stated specifications as manufacturer-reported and verify installation requirements for their own room.
Key Questions
What is Stringman?
Stringman is a cable-driven room-scale robot from Neufangled Robotics. Four anchors mounted near the ceiling control lines attached to a gripper, allowing it to move objects around a defined work area.
How much does Stringman cost?
Neufangled lists the system at $795. The supplied product information does not explain which parts, shipping or other costs are included in that price.
How much can it carry?
The company lists a maximum payload of up to 2.2 kilograms near the floor and an average of 1.9 kilograms in a specified 7 × 7 × 3 metre room. Those figures are manufacturer-provided and depend on the stated setup and 28-newton line-tension limit.
Does Stringman leave lines across the room?
Yes, while installed. Neufangled says the lines are raised near the ceiling when the robot is parked. The company also says the anchors can be detached from their mounts without tools, leaving the mounts in place.
Can it operate without sending data off the local network?
Neufangled says Stringman can run on a local Wi-Fi network with its interface served locally and AI models running on the owner’s hardware. Remote operation requires binding the robot to the company’s service, according to the product information.
Source: neufangled.com
