Search found 209 matches

by jhansen
Sun Aug 30, 2026 11:59 am
Forum: General Humanoid Robotics Discussion
Topic: New here - what are the forum's unwritten rules / good threads to read first?
Replies: 23
Views: 227

Re: New here - what are the forum's unwritten rules / good threads to read first?

Genuine beginner question - The 'humanoid' form factor mostly wins on infrastructure compatibility, not raw efficiency - stairs, doors, and tools were all built for a human body plan, so a legged, two-armed robot slots into existing spaces without retrofitting them.
by jhansen
Sun Aug 30, 2026 11:59 am
Forum: AI, Control Software & Locomotion
Topic: How do you keep a whole-body controller stable when adding a new tool/payload?
Replies: 30
Views: 268

Re: How do you keep a whole-body controller stable when adding a new tool/payload?

<t>@choi98 Same conclusion I've come to. Also worth noting:

Physical Intelligence's pi0 pairs a smaller pretrained vision-language backbone with a separate flow-matching 'action expert' module, which is one way to get fast, high-frequency action output without needing the whole giant language ...
by jhansen
Sun Aug 30, 2026 11:59 am
Forum: AI, Control Software & Locomotion
Topic: Anyone tried retargeting motion capture data for humanoid gait training?
Replies: 26
Views: 212

Re: Anyone tried retargeting motion capture data for humanoid gait training?

<t>Ran into exactly this myself.

A lot of what reads as 'full autonomy' in public demos is closer to a mix of scripted state machines, teleoperation for the hardest sub-tasks, and autonomous execution for the easier, well-rehearsed parts - transparency about this mix varies a lot between ...
by jhansen
Sun Aug 30, 2026 11:59 am
Forum: DIY & Hobbyist Builds
Topic: Best beginner-friendly simulation setup before touching real hardware?
Replies: 26
Views: 308

Re: Best beginner-friendly simulation setup before touching real hardware?

<t>Sorry if this is a basic question, but

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 amount of DIY ...
by jhansen
Sun Aug 30, 2026 11:59 am
Forum: Actuators, Motors & Drivetrains
Topic: How do you even quantify 'feel' when comparing two actuators?
Replies: 42
Views: 446

Re: How do you even quantify 'feel' when comparing two actuators?

Sorry if this is a basic question, but Torque sensing is frequently integrated directly into the actuator housing via strain gauges near the output flange or spring element, rather than bolted on as an external sensor, to save weight and reduce noise from mechanical slop.
by jhansen
Sun Aug 30, 2026 11:59 am
Forum: Sensors & Perception Systems
Topic: Best practices for IMU-to-camera extrinsic calibration on a moving robot?
Replies: 51
Views: 339

Re: Best practices for IMU-to-camera extrinsic calibration on a moving robot?

<t>Sorry if this is a basic question, but

IMU drift over time (bias instability) is usually the real culprit behind slowly diverging state estimates, not noise - it's typically handled with sensor fusion against other references (visual odometry, joint kinematics) rather than trying to eliminate ...
by jhansen
Sun Aug 30, 2026 11:59 am
Forum: Manipulation, Grippers & Dexterous Hands
Topic: What's your best tip for debugging a grasp policy that fails inconsistently?
Replies: 16
Views: 290

Re: What's your best tip for debugging a grasp policy that fails inconsistently?

<t>Pretty much this. One thing to add:

Figure's fourth-generation Dexterous Hand (on Figure 02/03) reportedly offers 16 degrees of freedom per hand with sensors integrated into each finger, aimed at fine force control tasks like handling small electronic components without crushing them. Bimanual ...
by jhansen
Sun Aug 30, 2026 11:59 am
Forum: Power Systems & Thermal Management
Topic: Anyone measured actual battery degradation after a full year of daily cycling?
Replies: 40
Views: 702

Re: Anyone measured actual battery degradation after a full year of daily cycling?

<t>@deborahperez Here's the relevant bit as far as I understand it:

Hot-swappable battery packs solve the runtime bottleneck for continuous operations (like a 24/7 warehouse shift) without needing a much bigger, heavier pack, but they add mechanical complexity, a failure-prone connector interface ...
by jhansen
Thu Aug 27, 2026 2:28 pm
Forum: Specific Robots & Companies
Topic: How seriously should we take PAL Robotics given their much longer track record?
Replies: 45
Views: 648

Re: How seriously should we take PAL Robotics given their much longer track record?

Genuine beginner question - XPeng's IRON humanoid debuted with a solid-state battery, part of a broader trend of Chinese entrants (alongside GAC's GoMate and EngineAI's T800) pushing energy-density and runtime claims that Western competitors haven't yet matched in announced specs.
by jhansen
Wed Aug 26, 2026 12:15 pm
Forum: General Humanoid Robotics Discussion
Topic: What's your take on humanoid robots getting their own trading cards/hype culture online?
Replies: 20
Views: 372

Re: What's your take on humanoid robots getting their own trading cards/hype culture online?

Just to be precise about one thing: Wheeled-torso designs solve 90% of warehouse and light-industrial tasks with far less complexity than a biped, which is exactly why so many 'humanoid' demos quietly have wheels under a skirt.