Problem with new ISS robot arm hand
Week Three: Ninth Anniversary Fund-Raising Drive for Behind the Black
It is now the third week in my annual anniversary fund-raising campaign for Behind the Black.
Please consider donating. I am trying to avoid advertising on this website, but will be forced to add it if I do not get enough support from my readers. You can give a one-time contribution, from $5 to $100, or a regular subscription for as little as $2 per month. Your support will be deeply appreciated, and will allow me to continue to report on science and culture freely.
Regular readers can support Behind The Black with a contribution via paypal:
If Paypal doesn't work for you, you can support Behind The Black directly by sending your donation by check, payable to Robert Zimmerman, to
Behind The Black
c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652
Update: Software patch fixes robot arm latching mechanism. (Hat tip reader jburn.)
Less that a week after astronauts did a spacewalk to install a new latching end effector on the end of one of the station’s robot arms NASA has decided to do another spacewalk to put the old “hand” back on.
Hints of an issue cropped up during the previous spacewalk when two of the six Expedition 54 astronauts—NASA’s Mark Vande Hei and Scott Tingle—replaced the end effector, called LEE-B, but ground teams were unable to communicate with the mechanism. “The spacewalking crew demated and remated the connectors and ground teams were able to power up the arm to an operational state on its secondary communications sting leaving the arm operational but without a redundant communications string,” a NASA statement reads.
After several days of troubleshooting, NASA and the Canadian Space Agency—which built the 57.7-foot (17.6-meter) long Canadarm2—said the decision was made to use the upcoming spacewalk to re-install the old LEE-B to restore the redundant capability with the arm. The space agency said if Canada and its robotics specialists find a way to solve the issue, the Jan. 29 spacewalk could be delayed.
It is now the third week in my annual anniversary fund-raising campaign for Behind the Black.
Please consider donating. I am trying to avoid advertising on this website, but will be forced to add it if I do not get enough support from my readers. You can give a one-time contribution, from $5 to $100, or a regular subscription for as little as $2 per month. Your support will be deeply appreciated, and will allow me to continue to report on science and culture freely.
Regular readers can support Behind The Black with a contribution via paypal:
If Paypal doesn't work for you, you can support Behind The Black directly by sending your donation by check, payable to Robert Zimmerman, to
Behind The Black
c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652
Update: Software patch fixes robot arm latching mechanism. (Hat tip reader jburn.)
Less that a week after astronauts did a spacewalk to install a new latching end effector on the end of one of the station’s robot arms NASA has decided to do another spacewalk to put the old “hand” back on.
Hints of an issue cropped up during the previous spacewalk when two of the six Expedition 54 astronauts—NASA’s Mark Vande Hei and Scott Tingle—replaced the end effector, called LEE-B, but ground teams were unable to communicate with the mechanism. “The spacewalking crew demated and remated the connectors and ground teams were able to power up the arm to an operational state on its secondary communications sting leaving the arm operational but without a redundant communications string,” a NASA statement reads.
After several days of troubleshooting, NASA and the Canadian Space Agency—which built the 57.7-foot (17.6-meter) long Canadarm2—said the decision was made to use the upcoming spacewalk to re-install the old LEE-B to restore the redundant capability with the arm. The space agency said if Canada and its robotics specialists find a way to solve the issue, the Jan. 29 spacewalk could be delayed.
This issue may have been resolved…
https://spaceflightnow.com/2018/01/28/software-patch-fixes-station-robot-arm-monday-spacewalk-repair-called-off/
Problem with the robot hand?
History repeats itself…..
https://youtu.be/Tb627xDlqBs