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  1. zohar.feldman replied to the thread Joint <-> actuator relation in mjModel.


    Nov 19, 2019 at 6:39 AM
  2. Emo Todorov attached a file to the thread Calculating joint space inertia matrix.

    Sorry about the delay. Your formula looks right, but I think you are using incompatible coordinate systems. M should be in Cartesian...

    Nov 19, 2019 at 3:14 AM
  3. Emo Todorov replied to the thread Joint <-> actuator relation in mjModel.

    mjModel.actuator_trnid is the "transmission id" which is the id of the joint when the actuator acts on a joint. It could also act on a...

    Nov 19, 2019 at 3:02 AM
  4. Emo Todorov replied to the thread Adding actuator in cpp.

    Around March 2020.

    Nov 19, 2019 at 2:59 AM
  5. wutter liked Adam Allevato's post in the thread Trouble with a closed Kinematic loop.

    I'm attempting to model the Robotiq 2-finger adaptive gripper. Each finger is an underactuated 2-DOF, fivebar mechanism, but I'm...

    Nov 16, 2019 at 5:39 AM
  6. wutter liked Gautam Salhotra's post in the thread Trouble with a closed Kinematic loop.

    Where is it? I see a model of the 3-finger gripper but not the 2-finger one with the closed kinematic loop.

    Nov 16, 2019 at 5:06 AM
  7. Eugene Valassakis replied to the thread Understanding Li, Li_dot and grad_Li.

    Digging a bit more, I believe that li is stored in actuator_length in mj_data , li_dot is stored in actuator_velocity and li_grad in...

    Nov 15, 2019 at 6:31 AM
  8. Maximilian Haas-Heger posted a new thread.

    Modeling contacts on soft skin

    Hi! I'm trying to simulate a grasping task with a robotic hand that is covered in a soft skin. This means that the contacts are somewhat...

    Forum: Modeling

    Nov 14, 2019 at 1:50 PM
  9. florianw replied to the thread Connect two object when contact.

    You could define a weld constraint between them and activate it in the collision callback.

    Nov 14, 2019 at 8:33 AM
  10. Qinbo Li posted a new thread.

    Connect two object when contact

    Is it possible to connect two object when they contact? For example, if the end of two capsule contact, then this two capsule are...

    Forum: Simulation

    Nov 12, 2019