RW-BL1K some mods done & Running a Blue Thunder Generator

RW-BL1K some mods done & Running a Blue Thunder Generator

This topic has 5 replies, 2 voices, and was last updated 11 February 2026 at 08:45 by Blue Heeler.

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9 February 2026 at 02:30 #836886
Blue Heeler
Participant
@blueheeler
Rocking Whale RW-BL1K Miniature Steam Engine Plant with some modifications & running a Blue Thunder Generator & Light
Added a steam condensate catcher, two step hobbed aluminium drive pulley and a brass knob to the Stephenson Linkage handle.
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10 February 2026 at 09:50 #837024
Michael Gilligan
Participant
@michaelgilligan61133
Nicely demonstrated

… I was intrigued by the ‘Blue Thunder’ moniker for that little generator 🙂

and found this:

https://www.officeofsteamforum.com/general-discussion/the-psantama-bluethunder-generators/

which some here might like to follow-up.

MichaelG.

.

Edit: https://www.tapatalk.com/groups/modelsteam/review-of-psantama-blue-thunder-generator-t19147.html
10 February 2026 at 23:20 #837161
Blue Heeler
Participant
@blueheeler
G’day Michael,

Those threads were blasts from the past!

I have tried to duplicate these, but I have never been successful in finding a similar stepper motor like what Peter used to make these up.

Hopefully someone can jump in with some information.

Cheers,

Jim
11 February 2026 at 05:58 #837162
Michael Gilligan
Participant
@michaelgilligan61133
The motor looks fairly standard, Jim… that’s why I shared the link to your other discussion … the specification was “hidden in plain sight”

Good luck withbuilding an homage

MichaelG.

Ref. https://www.jameco.com/z/STP-42D201-37-Shinano-Kenshi-12-Volt-1-8-Step-Angle-Bipolar-Stepper-Motor_2158531.html
11 February 2026 at 08:39 #837171
Blue Heeler
Participant
@blueheeler
On 11 February 2026 at 05:58 Michael Gilligan Said:

The motor looks fairly standard, Jim… that’s why I shared the link to your other discussion … the specification was “hidden in plain sight”

Good luck withbuilding an homage

MichaelG.

Ref. https://www.jameco.com/z/STP-42D201-37-Shinano-Kenshi-12-Volt-1-8-Step-Angle-Bipolar-Stepper-Motor_2158531.html

Thanks Michael…..appreciated.
11 February 2026 at 08:45 #837172
Blue Heeler
Participant
@blueheeler
Hobbed a brass drive pulley I turned up –
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