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pull/16/head
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
  2. +4
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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:
1. Detect when the actuator effort exceeds a user-specified threshold during joint motion.
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:

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stretch_body/tutorial_introduction.md View File

@ -183,9 +183,11 @@ time.sleep(2.0)
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>

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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
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
Here we describe removing the Dex Wrist gripper. Please ensure that the robot is turned off before proceeding.

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