humanoidrobots.systems

hyperspawn/dropbear · spec sheet Flagship open platform · featured placement, scores computed

Hyperspawn Dropbear specs

Full-size open-source humanoid from Hyperspawn and Pointblank: FDM-printed structure on 20x20 aluminium extrusion, MyActuator CAN actuators, an ESP32 node per limb and a Jetson Orin brain. CAD, BOM, printables, firmware, URDF/MJCF/USD and simulation walking policies are public; a pre-assembled kit is on preorder.

Maker
Hyperspawn Robotics
Class
Humanoid
Status
Active
Availability
Preorder
Country
India
Level
L2 Sim-verified
01

Media

16 items · credited and licensed
CAD render of the full Dropbear humanoid standing, open printed frame with yellow accent partsrender
Full-assembly CAD render from dropbear_hardware.Hyperspawnlicense: Hyperspawngithub.com
GLB · three.jsdraco + meshopt
Rigged web model from the Hyperspawn landing page (dropbear_web_v4), Draco-compressed and simplified to 6.5 MB. About 1.89 m tall as modelled.Hyperspawnlicense: Hyperspawnhyperspawn.ai
Studio render of Dropbear with its open printed frame, three-quarter view from belowrender
Blender studio render of the open-frame build.Hyperspawnlicense: Hyperspawngithub.com
Dropbear with white and grey covered body panels, three-quarter viewrender
Covered-shell finish study (the kit's optional full-cover finish). Design render, not a shipping unit.Hyperspawnlicense: Hyperspawnhyperspawn.ai
Dropbear with covered body panels, front viewrender
Covered-shell finish study, front. Design render.Hyperspawnlicense: Hyperspawnhyperspawn.ai
Exploded render of Dropbear with its body panels floating away from the framerender
Exploded view: printed panels off the extrusion-and-actuator frame.Hyperspawnlicense: Hyperspawngithub.com
Promotional render of Dropbear standing in a dark concrete roomrender
Promotional render from dropbear_media.Hyperspawnlicense: Hyperspawngithub.com
Promotional render of Dropbear standing beside a desk by a window at sunsetrender
Promotional render from dropbear_media.Hyperspawnlicense: Hyperspawngithub.com
CAD render of the Dropbear head on its six-leg stepper-driven neck platformrender
Head and Stewart-platform neck subassembly (six NEMA 17 lead-screw legs).Hyperspawnlicense: Hyperspawngithub.com
CAD render of the Dropbear right arm subassemblyrender
Right arm subassembly.Hyperspawnlicense: Hyperspawngithub.com
CAD render of the Dropbear right leg with tie-rod ankle linkagerender
Right leg subassembly with the tie-rod ankle drive.Hyperspawnlicense: Hyperspawngithub.com
CAD render of the Dropbear pelvis with its hip actuatorsrender
Pelvic girdle subassembly.Hyperspawnlicense: Hyperspawngithub.com
CAD render of the Dropbear torso cage built from 20x20 extrusion and printed bracketsrender
Torso subassembly: 20x20 extrusion cage and printed brackets.Hyperspawnlicense: Hyperspawngithub.com
Screenshot of the dropbear-locomotion live viewer mirroring a domain-randomised training environment
Live viewer mirroring an Isaac Lab training environment (randomised mass and friction).Hyperspawn Robotics and robit-man (dropbear-locomotion)license: CC-BY-NC-SA-4.0github.com
Simulation, not hardware: 30 s Isaac Lab rollout of the experimental v0.2.0 policy (model_10479.pt) at 50 Hz.Hyperspawn; policy by Hyperspawn Robotics and robit-man (dropbear-locomotion)license: CC-BY-NC-SA-4.0github.com
Simulation: v0.1.0 policy, 0.20 m/s robot-left command, in the dropbear-locomotion live viewer.Hyperspawn Robotics and robit-man (dropbear-locomotion)license: CC-BY-NC-SA-4.0github.com
02

Specifications

11/12 fields sourced
Hyperspawn Dropbear specifications
Heightspecs.heightCm180cm
Massspecs.massKg45kg
Degrees of freedomspecs.dof32
Payloadspecs.payloadKg5kg
Top speedspecs.speedMpsunsourced
Runtimespecs.runtimeMin120min
Battery capacityspecs.batteryWh960Wh
Pricespecs.priceUsd9,999USDPre-assembled kit, $500 refundable deposit, ships Q2 2027 (first 500 units) per hyperspawn.ai. Options: five-finger hand +$1,000, Jetson Orin compute +$2,000, advanced policies +$4,000, covered shell +$500. Self-sourced BOM ~$10,400 (~$8,900 with a Jetson Orin NX); hyperspawn.ai quotes $1.5–3k in parts for a source build, which does not match the BOM.
Actuatorsspecs.actuatorsMyActuator RMD-X10, RMD-X8, RMD-X6 and CEM-60 over 1 Mbit/s CAN (18 per the 2026 BOM; myactuator-can lists 12 RMD-X8 Pro, 4 RMD-X10 V3, 6 CEM-60); 6 NEMA 17 lead-screw steppers in the Stewart-platform neck. hyperspawn.ai: servo + QDD.
Computespecs.computeNVIDIA Jetson AGX Orin 64GB (BOM; Orin NX 16GB alternative) plus one ESP32-DevKitC-V4 CAN node per limb. Kit: Raspberry Pi 5 base, Jetson Orin advanced.
Sensorsspecs.sensorsIntel RealSense D455f depth camera, IMU (center-IMU controller role), foot load cells (4x HX711 per foot, dropbear-feet), actuator encoders; five AS5600 magnetic angle sensors per leg controller (observation-safe firmware)
Year introducedyear2023
Licenselicense.hw / .sw / .docsHardware: MIT AND LicenseRef-Hyperspawn-LicenseSoftware: MIT AND CC-BY-NC-SA-4.0Docs: MIT

Note · Reference implementation of the ORP spec; gets no ranking advantage anywhere in the suite. Three ways to get one: preorder the assembled kit ($9,999, $500 deposit, Q2 2027), self-source from the open BOM, or print and build from the repos. Level 2 (sim-verified), not 4: no physical walking is published and the locomotion repo calls its policies simulation releases; the v0.1.0 policy passed 128/128 zero-fall 20 s trials at 0.20 m/s in sim, so no top speed is listed. Spec sources conflict and the most recent official statement (hyperspawn.ai, 2026) is used: 1.8 m (home page says 6 ft), 45 kg (URDF sums to 47.7 kg, MJCF to 34.0 kg), 32 DOF (dropbear_firmware configures 31 joints across 6 limb nodes; the locomotion policy drives 14), 48 V battery (home-page label reads 24 V), 2–4 h runtime (lower bound stored). Battery energy is the BOM's 48 V 20 Ah pack. Licenses: most sub-repos are MIT (bom.md's footer says CC BY 4.0); the main Dropbear repo uses the non-commercial Hyperspawn License; dropbear-locomotion (code, weights, USD, media) is CC BY-NC-SA 4.0.

03

Openness

method
100 / 100Open hardware
ArtifactPublicWeightPoints
CADopenness.cadyes2525
Bill of materialsopenness.bomyes2020
Sim model (URDF/MJCF)openness.simyes2020
Firmwareopenness.firmwareyes1515
Softwareopenness.softwareyes1010
Trained policiesopenness.policiesyes1010
score = Σ weight × public100
04

Build package

v0.2.0 · full guide
BOM lines
94
Parts (qty)
1,539
Priced BOM
$9,948
Fab parts
256
Print time
459.9 h
Material
11.6 kg
Build steps
40
Est. assembly
78.3 h
Safety steps
9
Vendors
13

BOM by category · USD from priced lines

CategoryLinesQtyUSD
Actuators5246,630
Compute111,999
Sensors29399
Power67293
Structure16132238
Electronics1245238
Fasteners441,298104
Cabling82347

Offers in CN · EU · GLOBAL · IN · US from 13 vendors

Subsystems · assembly groups

GroupStepsMinSafety
Fabrication105701
Left leg3450—
Right leg1420—
Feet2480—
Pelvis3210—
Torso44201
Arms3780—
Head3240—
Electrical34202
Firmware31651
Bring-up55404

Fabrication: FDM print ×256

Firmware

Targets
left_arm, right_arm, left_leg, right_leg, head, torso, neck (Dropbear-Neck-Assembly), feet (dropbear-feet pressure.ino)
Repo
github.com/Hyperspawn/dropbear_firmware
Calibrate
Set actuator IDs (0x79) and zero (0x64) with myactuator-can, then verify joint directions against the URDF using the observation-safe image before any motion.
Notes
dropbear_firmware: PlatformIO / Arduino on ESP32-DevKitC-V4, SN65HVD230 transceivers, one shared 1 Mbit/s CAN bus, node IDs 0x10-0x15, 500 Hz joint state, 1 Hz heartbeat; CI builds all six limb environments. Per-limb joints: arms 7, legs 6, head 3, torso 2 (31 total). The main Dropbear repo keeps the original low-level controllers: the Behemoth universal image (left leg, right leg, center IMU or head/neck role from persistent config), a hybrid PWM/CAN leg controller, an observation-only image and a legacy leg controller; its partitions.csv gives the app 2.5 MiB. robit-man/dropbear_control provides a browser digital twin and a guarded firmware uploader that checks the partition table.

Policies

  • walk, flat ground (v0.1.0, validated in sim) · Isaac Lab + RSL-RL PPO · github.comONNX actor; keep policy.onnx.data beside it. 58 inputs, 14 joint-position actions at 50 Hz. 128/128 zero-fall 20 s trials at 0.20 m/s (forward, backward, left, right) on a plane, pushes off. TorchScript policy.pt and the full model_8745.pt are alongside. CC BY-NC-SA 4.0: non-commercial.
  • walk over low obstacles (v0.2.0, experimental) · Isaac Lab + RSL-RL PPO · github.comAdds a 104-value terrain-height scan (162 inputs). Trained on 3-14 cm boxes at +0.20 m/s; not converged, no deterministic evaluation yet (84.5% time-outs at the last update). CC BY-NC-SA 4.0: non-commercial.

Caveats · stated by the package

  • The Dropbear README says build files, docs and control software evolve at different speeds; match revisions before ordering parts or powering anything.
  • Actuator sources disagree. bom.md (2026-04) lists 4 RMD-X10, 4 RMD-X8, 4 RMD-X6 and 6 CEM-60; myactuator-can and the 2025 BOM list 12 RMD-X8 Pro, 4 RMD-X10 and 6 CEM-60; parts of dropbear_docs (hardware roll-up, pelvis guide, hands) still describe Dynamixel servos. The 2026 BOM is used for quantities and prices here.
  • Joint counts disagree: hyperspawn.ai says 32 DOF, dropbear_firmware configures 31 joints on 6 nodes, the 2026 BOM supplies 18 CAN actuators plus 6 neck steppers, and the locomotion policy drives 14.
  • Print totals are ours, not the maker's: slicing the seven repo plates with their embedded settings gives about 460 h and 11.6 kg of PLA for 294 parts on 41 plates. dropbear_docs estimates ~180 h and ~8 kg. Per-part hours and grams split each plate's sliced total by part volume.
  • Material guidance conflicts: dropbear_docs suggests PLA+ for 90% of parts, print_settings.md validated the plates in PLA, and the printables README prefers PETG/ABS (PLA for prototypes only).
  • The STLs/ folders (352 files) use different file names from the .3mf plates and include parts that are not on any plate; the plates are used here as the print list.
  • bom.md prices are the maker's approximate 2024-2025 retail figures and most vendor links are search pages. Subsystem subtotals don't match the line items, and the ~$10,400 total differs from hyperspawn.ai's '$1.5-3k in parts' for a source build.
  • Electronics, calibration, testing and operations docs are marked 'coming soon'. No wiring diagram or PCB is published (dropbear_electronics holds only a README).
  • Feet and neck live in separate repos (dropbear-feet, Dropbear-Neck-Assembly) and are not in bom.md; their lines here come from those READMEs without prices.
  • No hardware stand or walking procedure is published. The locomotion policies are simulation results only, and dropbear-locomotion (code, weights, USD) is CC BY-NC-SA 4.0, non-commercial.
  • The main Dropbear repo uses the non-commercial Hyperspawn License; most sub-repos are MIT. bom.md's footer says CC BY 4.0 while the repo LICENSE is MIT.

Package hyperspawn/dropbear@0.2.0 · upstream dropbear_bom@78f932c (2026-04-07); dropbear_printables@c5ad307 (2025-07-17); dropbear_docs@1c9ebcc (2025-09-09); dropbear_firmware@main (2026-04-07); myactuator-can@main (2025-10); Dropbear-Neck-Assembly@main; dropbear-feet@main; dropbear-locomotion v0.2.1 (2026-07-27) · 16 package sources

05

Models, repositories, links

35 links
06

Videos

0 tagged · 0 from the maker's channel
The videos of Dropbear feed is not reachable right now. This page regenerates every 30 minutes and will fill as soon as the feed answers. Source: https://hyperspawn.io/api/v1/videos.
07

News and papers

0 stories · 0 papers

News mentioning Dropbear

The news feed is not reachable right now; this page regenerates every 30 minutes.

Papers using Dropbear

The papers feed is not reachable right now; this page regenerates every 30 minutes.
08

Timeline

industry timeline

20262

  1. Company

    Hyperspawn takes Dropbear kit reservations

    As checked on 2026-09-25, hyperspawn.ai offers the Dropbear kit at $9,999 with a $500 refundable deposit, limited to 500 first-edition units shipping in Q2 2027. The site does not state when reservations opened. Building from the open files remains free.

    Hyperspawn Dropbearhyperspawn.aihyperspawn.ai
  2. Open source

    Hyperspawn publishes Dropbear locomotion policies

    Hyperspawn published dropbear-locomotion, Isaac Lab and RSL-RL PPO training for Dropbear walking, with a v0.1.0 checkpoint. Its published evaluation runs 128 simulated episodes with a fall rate of 0. These are simulation results; no physical walking is published.

    Hyperspawn Dropbeargithub.comgithub.com

20252

  1. Open source

    Hyperspawn publishes Dropbear Isaac Sim and Isaac Lab repos

    Hyperspawn created dropbear_isaac and dropbear_rl on GitHub for training and simulating Dropbear in NVIDIA Isaac Sim and Isaac Lab.

    Hyperspawn Dropbeargithub.comapi.github.com
  2. Open source

    Hyperspawn splits Dropbear into per-subsystem repositories

    Hyperspawn created separate GitHub repositories for Dropbear's CAD (dropbear_hardware), bill of materials (dropbear_bom), printable parts (dropbear_printables), firmware, electronics, build docs, URDF and MJCF models (all MIT) and a Gazebo simulation, plus a MyActuator CAN driver (myactuator-can, MIT).

    Hyperspawn Dropbeargithub.comapi.github.comapi.github.com

20231

  1. Open source

    Hyperspawn opens the Dropbear repository

    Hyperspawn created Hyperspawn/Dropbear on GitHub, the public home of its open-source, 3D-printed Dropbear humanoid.

    Hyperspawn Dropbeargithub.comapi.github.com
09

Sources

last checked 2026-09-25
  1. [1]hyperspawn.ai: configure & preorder (price, deposit, ship date, specs)hyperspawn.ai/buychecked 2026-09-25
  2. [2]hyperspawn.ai: Dropbear spec sheethyperspawn.ai/docs/robots/dropbearchecked 2026-09-25
  3. [3]hyperspawn.ai home (6 ft / 45 kg / 32 joints)hyperspawn.ai/checked 2026-09-25
  4. [4]hyperspawn.co (legacy domain, same site)hyperspawn.co/checked 2026-09-25
  5. [5]Dropbear main repo READMEgithub.com/Hyperspawn/Dropbearchecked 2026-09-25
  6. [6]dropbear_bom / bom.md (2026-04 pricing)github.com/Hyperspawn/dropbear_bom/blob/main/bom.mdchecked 2026-09-25
  7. [7]dropbear_docsgithub.com/Hyperspawn/dropbear_docschecked 2026-09-25
  8. [8]dropbear_printables (.3mf plates, print settings)github.com/Hyperspawn/dropbear_printableschecked 2026-09-25
  9. [9]dropbear_firmware CAN config (6 limb nodes, 31 joints)github.com/Hyperspawn/dropbear_firmware/blob/main/docs/can_config.mdchecked 2026-09-25
  10. [10]myactuator-can (actuator list, CAN IDs, limits)github.com/Hyperspawn/myactuator-canchecked 2026-09-25
  11. [11]Dropbear-Neck-Assembly (6-DOF stepper neck)github.com/Hyperspawn/Dropbear-Neck-Assemblychecked 2026-09-25
  12. [12]dropbear-feet (load-cell feet)github.com/Hyperspawn/dropbear-feetchecked 2026-09-25
  13. [13]dropbear-locomotion (policies, evaluations)github.com/Hyperspawn/dropbear-locomotionchecked 2026-09-25
  14. [14]v0.1.0 evaluation: 128 trials, 0 fallsgithub.com/Hyperspawn/dropbear-locomotion/blob/main/evaluation/cardinal_0.20_strict_128.jsonchecked 2026-09-25
  15. [15]dropbear_urdfgithub.com/Hyperspawn/dropbear_urdfchecked 2026-09-25
  16. [16]dropbear_mjcfgithub.com/Hyperspawn/dropbear_mjcfchecked 2026-09-25
10

Suggest a correction

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11

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Cite this page

humanoidrobots.systems. “Hyperspawn Dropbear specs.” Hyperspawn, data revision 2026-10-08. https://humanoidrobots.systems/hyperspawn/dropbear

Machine-readable: /data.json (record hyperspawn/dropbear).