Nakamura-san
@defaultuserhandle.bsky.social
Father, husband, and engineer. Currently in Shinjuku
Usually on the road, commissioning industrial equipment around the world.
I changed my name because too many confused by the a English name I use for work.
Usually on the road, commissioning industrial equipment around the world.
I changed my name because too many confused by the a English name I use for work.
The #VFD I am commissioned. It is 4160Vac input and output to motor.
The shredder application is akin to a large flywheel with hammers. It is important to have rotational speed to impart kinetic energy to the material we are reclaiming.
In less than 15 seconds, an entire car can be processed.
The shredder application is akin to a large flywheel with hammers. It is important to have rotational speed to impart kinetic energy to the material we are reclaiming.
In less than 15 seconds, an entire car can be processed.
November 21, 2025 at 10:28 PM
The #VFD I am commissioned. It is 4160Vac input and output to motor.
The shredder application is akin to a large flywheel with hammers. It is important to have rotational speed to impart kinetic energy to the material we are reclaiming.
In less than 15 seconds, an entire car can be processed.
The shredder application is akin to a large flywheel with hammers. It is important to have rotational speed to impart kinetic energy to the material we are reclaiming.
In less than 15 seconds, an entire car can be processed.
November 8, 2025 at 1:59 AM
March 27, 2025 at 7:39 PM
A local dish known as #gumbo. Very tasty. Much like Japanese curry. In the background #fried #orca. Not sure why it is called orca as it was a vegetable I think. It reminded me somewhat of #nattō with a slightly stringy/slimy taste. Not the same earthy taste.
American food always interesting.
American food always interesting.
February 23, 2025 at 11:31 PM
#ship #propeller from the #USS #Alabama. If you look closely, you can see small pitting. This is not from rust or corrosion. This is caused by #cavitation. The water boils due to pressure changes by the shaft spinning.
This also is how Mantis Shrimp kill their prey as well.
This also is how Mantis Shrimp kill their prey as well.
February 22, 2025 at 8:15 PM
#ship #propeller from the #USS #Alabama. If you look closely, you can see small pitting. This is not from rust or corrosion. This is caused by #cavitation. The water boils due to pressure changes by the shaft spinning.
This also is how Mantis Shrimp kill their prey as well.
This also is how Mantis Shrimp kill their prey as well.
February 22, 2025 at 8:11 PM
#baseball memorabilia from #USS #Alabama crew. A MLB Hall of Fame player volunteered to enlist. We have special section of the #Japanese Baseball Hall of Fame at #Tokyo #Dome which memorializes Japanese pro athletes that died in #WII. Baseball conquers all. Older than modern Japanese state.
February 22, 2025 at 8:07 PM
When talking to one of the volunteers of #USS #Alabama, he asked what ships we preserved in Japan. "No. US sank most of them".
I shared that the motor factory for my employer survived the Nagasaki bombing and if he visited, I could show him .50 cal holes from US Army attacks in I beams.
I shared that the motor factory for my employer survived the Nagasaki bombing and if he visited, I could show him .50 cal holes from US Army attacks in I beams.
February 22, 2025 at 8:03 PM
There were ten Japanese players to play at least one MLB game before Ichiro Suzuki. If you are ever in Japan, please consider visiting the Tokyo Dome which has the Japan Baseball Hall of Fame.
16 Jan of this year, Suzuki-san was inducted. There is many good memorabilia.
16 Jan of this year, Suzuki-san was inducted. There is many good memorabilia.
February 5, 2025 at 6:02 PM
There were ten Japanese players to play at least one MLB game before Ichiro Suzuki. If you are ever in Japan, please consider visiting the Tokyo Dome which has the Japan Baseball Hall of Fame.
16 Jan of this year, Suzuki-san was inducted. There is many good memorabilia.
16 Jan of this year, Suzuki-san was inducted. There is many good memorabilia.
Hard to believe Spring Training already started.
This year marks the 90th year of the team's existence in December.
Go Tigers!!!!
This year marks the 90th year of the team's existence in December.
Go Tigers!!!!
February 2, 2025 at 11:31 PM
Hard to believe Spring Training already started.
This year marks the 90th year of the team's existence in December.
Go Tigers!!!!
This year marks the 90th year of the team's existence in December.
Go Tigers!!!!
Silly pictures.
February 1, 2025 at 10:25 PM
Silly pictures.
I managed to get a permanent magnet motor to work on a variable frequency drive with sensorless speed feedback control.
It's a low voltage proof of concept version of a 13.2kV medium voltage drive currently already in use.
It's for an upcoming cryogenics project.
It's a low voltage proof of concept version of a 13.2kV medium voltage drive currently already in use.
It's for an upcoming cryogenics project.
January 3, 2025 at 4:25 AM
I managed to get a permanent magnet motor to work on a variable frequency drive with sensorless speed feedback control.
It's a low voltage proof of concept version of a 13.2kV medium voltage drive currently already in use.
It's for an upcoming cryogenics project.
It's a low voltage proof of concept version of a 13.2kV medium voltage drive currently already in use.
It's for an upcoming cryogenics project.
Tokyo subways are interesting.
November 7, 2024 at 10:50 PM
Tokyo subways are interesting.
This is B-427. A foxtrot Soviet diesel boat. It's weird it's call the "Scorpion" because Russians don't name subs like that.
It's also kind of insult as the USS Scorpion was one of two US nuke subs lost at sea.
At least the city of Long Beach is taking care of her like the Russians would.
It's also kind of insult as the USS Scorpion was one of two US nuke subs lost at sea.
At least the city of Long Beach is taking care of her like the Russians would.
March 8, 2024 at 11:32 PM
This is B-427. A foxtrot Soviet diesel boat. It's weird it's call the "Scorpion" because Russians don't name subs like that.
It's also kind of insult as the USS Scorpion was one of two US nuke subs lost at sea.
At least the city of Long Beach is taking care of her like the Russians would.
It's also kind of insult as the USS Scorpion was one of two US nuke subs lost at sea.
At least the city of Long Beach is taking care of her like the Russians would.
This is a wild site. My entire feed is just accounts threatening to block me for engaging.
Not exactly sure what I'm allowed to do.
Not exactly sure what I'm allowed to do.
February 7, 2024 at 11:53 PM
This is a wild site. My entire feed is just accounts threatening to block me for engaging.
Not exactly sure what I'm allowed to do.
Not exactly sure what I'm allowed to do.