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hello-chintan 1 year ago
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79e603bb8f
3 changed files with 12 additions and 12 deletions
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      stretch_body/tutorial_contact_models.md
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      stretch_body/tutorial_introduction.md
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      stretch_tool_share/dex_to_standard.md

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stretch_body/tutorial_contact_models.md View File

@ -7,11 +7,9 @@ This tutorial introduces the Stretch Body contact detection system and explains
Guarded contact is our term for the Stretch contact sensitive behaviors. The guarded contact behavior is simply: Guarded contact is our term for the Stretch contact sensitive behaviors. The guarded contact behavior is simply:
1. Detect when the actuator effort exceeds a user-specified threshold during joint motion. 1. Detect when the actuator effort exceeds a user-specified threshold during joint motion.
2. If the threshold is exceeded: 2. If the threshold is exceeded:
1. Enable the default safety controller for the joint
2. Remain in safety mode until a subsequent joint command is received
1. Enable the default safety controller for the joint
2. Remain in safety mode until a subsequent joint command is received
Practically this enables the arm, for example, to move out yet stop upon collision. Let's test this out with the following script: Practically this enables the arm, for example, to move out yet stop upon collision. Let's test this out with the following script:

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stretch_body/tutorial_introduction.md View File

@ -183,9 +183,11 @@ time.sleep(2.0)
robot.stop() robot.stop()
``` ```
**NOTE**: In this example we call `sleep()` to allow time for the motion to complete before initiating a new motion.
!!! note
In this example we call `sleep()` to allow time for the motion to complete before initiating a new motion.
**NOTE**: The Dynamixel servos do not use the Hello Robot communication protocol. As such, the head, wrist, and gripper will move immediately upon issuing a motion command.
!!! note
The Dynamixel servos do not use the Hello Robot communication protocol. As such, the head, wrist, and gripper will move immediately upon issuing a motion command.
------ ------
<div align="center"> All materials are Copyright 2022 by Hello Robot Inc. Hello Robot and Stretch are registered trademarks.</div> <div align="center"> All materials are Copyright 2022 by Hello Robot Inc. Hello Robot and Stretch are registered trademarks.</div>

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stretch_tool_share/dex_to_standard.md View File

@ -3,12 +3,12 @@ This tutorial will guide you through the steps of replacing a gripper with a Dex
## Parts and Tools Required ## Parts and Tools Required
Please note that this procedure does not require any additional parts or tools apart from the ones that were shipped with the robot. Please note that this procedure does not require any additional parts or tools apart from the ones that were shipped with the robot.
- 8 [M2x6mm Torx FHCS bolts](https://www.mcmaster.com/90236A104/)
- 4 [M2.5x4mm Torx FHCS bolts](https://www.mcmaster.com/92703A448/)
- 2 [M2.5x8mm SHCS bolts](https://www.mcmaster.com/91290A102/)
- T6 Torx wrench
- T8 Torx wrench
- 2mm Hex key
- 8 [M2x6mm Torx FHCS bolts](https://www.mcmaster.com/90236A104/)
- 4 [M2.5x4mm Torx FHCS bolts](https://www.mcmaster.com/92703A448/)
- 2 [M2.5x8mm SHCS bolts](https://www.mcmaster.com/91290A102/)
- T6 Torx wrench
- T8 Torx wrench
- 2mm Hex key
## Removing Dex Wrist Gripper ## Removing Dex Wrist Gripper
Here we describe removing the Dex Wrist gripper. Please ensure that the robot is turned off before proceeding. Here we describe removing the Dex Wrist gripper. Please ensure that the robot is turned off before proceeding.

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