Humanoid-universe.com

<t>@brian.campbell This matches what I've seen too.

Regenerative braking on humanoid joints can recover some energy during deceleration phases of walking, but the actual energy recovered is modest compared to a vehicle, since humanoid joints don't sustain the same continuous high-speed rotation ...

<t>@olga_lind I can speak to this a bit.

Fourier Intelligence's GR series and PAL Robotics both represent longer-running robotics companies (rather than recent startups) entering or continuing in the humanoid space, which brings real hardware experience but also legacy processes that newer ...

<t>@larrysokolov I dealt with almost this exact situation.

A realistic hobbyist bill-of-materials for a small biped balloons fast once you add a real IMU, decent motor controllers, a reasonable battery/BMS setup, and enough compute for onboard control - the headline '$5k' budget assumes a fair ...

<t>Not to derail, but this reminds me of something adjacent:

Field-oriented control (FOC) tuning directly affects how smooth torque output feels - poorly tuned current loops show up as audible whine and jerky low-speed motion, while well-tuned FOC can make even a geared actuator feel fairly fluid ...

<t>@novikova63 I'd take that specific number with a grain of salt, honestly.

Series elastic actuators add a spring element in series with the drivetrain, which gives cheap, precise torque sensing (measure spring deflection) and passive shock absorption, at the cost of reduced control bandwidth ...

<t>Slight correction, though the overall point stands:

There's no widely standardized safety certification specific to humanoid battery packs yet in most jurisdictions - deployments generally lean on adapted versions of existing standards for industrial battery systems and electrical safety ...

<t>Speaking from personal experience here,

A first successful unassisted walk, from a standing start on a from-scratch project, commonly takes many months of part-time weekend work even for someone with a solid mechanical and software background - it's a genuinely hard milestone, not a weekend ...

<t>@deborahperez +1 to this. Worth adding:

The Berkeley Humanoid Lite stands about 1 meter tall and weighs roughly 16 kg, which is a genuinely reasonable target size for a first serious hobbyist build - big enough to be a real bipedal platform, small enough to not need industrial-scale actuators ...

@chloe.harris7 Tangent, but worth mentioning: Starting in simulation (even a simplified physics sim of just the leg or the target gait) before touching real hardware is one of the more reliable ways to avoid destroying expensive parts while debugging balance and walking control from scratch.

<t>@ssantos Slight correction, though the overall point stands:

Robotics-as-a-Service (RaaS) - subscription, leasing, or usage-based pricing instead of outright purchase - is emerging specifically to lower the adoption barrier for businesses that don't want to commit large capital expenditure to ...