Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

The Regular Stuff: Chat, Buy, Sell, Off Topic, etc. => General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals => Topic started by: Jim on April 12, 2021, 07:18:27 pm

Title: Re: The Psantama Blue Thunder Generators
Post by: classixs on April 15, 2021, 03:38:05 am

Thanks for confirming this!

I did notice the comment, but really didn´t think anything else than you´d watched it at YouTube, after finding the link in here.
Noone without the link should be able to find the movie, according to YouTube´s own description. A lot of good that does, when they proceed by inserting them in 3rd. party feeds.

Title: Re: The Psantama Blue Thunder Generators
Post by: Jim on April 14, 2021, 06:20:08 pm

Quote from: classixs on April 14, 2021, 04:28:25 am

No problem Jim.

However your wording confuses me slightly, as i uploaded it as "hidden".
Fingers crossed that you saw the link here, and watched the movie there, and didn´t find it on YouTube directly?

Jan, I watched it on YT it came up in my subscription feed, I left you a comment on the vid just after you uploaded it.

Title: Re: The Psantama Blue Thunder Generators
Post by: classixs on April 14, 2021, 04:28:25 am

No problem Jim.

However your wording confuses me slightly, as i uploaded it as "hidden".
Fingers crossed that you saw the link here, and watched the movie there, and didn´t find it on YouTube directly?

Title: Re: The Psantama Blue Thunder Generators
Post by: Jim on April 13, 2021, 09:12:12 pm

Watched it on YT earlier, thanks Jan.

Title: Re: The Psantama Blue Thunder Generators
Post by: classixs on April 13, 2021, 02:44:42 am

Unfortunately is has no tag on it, and can´t even remember where it came from either.

It is not necessary with any electronics, if the sole purpose is to light LEDs.
Just made this little demo, by just twisting a LED onto one of the "inferior" steppers here:
https://youtu.be/J1N9nzKz5dk

Title: Re: The Psantama Blue Thunder Generators
Post by: Jim on April 13, 2021, 02:18:57 am

Thanks Jan, from memory they need be wired to some electronics gizmo don't they?

Can you tell make/model of which one puts out the 50V by anything stamped on it?

Title: Re: The Psantama Blue Thunder Generators
Post by: classixs on April 13, 2021, 01:25:19 am

You can do that with any stepper motor of that size, but as Daniel mentions, there´s loads of difference in their configurations/output.

I have had 3 laying around here for future projects forever, and just last week tested them.
Just one of them would reach 50V while idling as the Blue Thunder, the other two only around 30V at same speed in the mill. 
All of them will light LEDs just as easily as the Blue Thunder, but there most likely would be a difference in how many they can handle at the same time.

Title: Re: The Psantama Blue Thunder Generators
Post by: Jim on April 12, 2021, 09:01:07 pm

Thanks Daniel, they are an amazing generator. I can light my LED just turning the pulley on my Blue Thunder slowly with my fingers.

Title: Re: The Psantama Blue Thunder Generators
Post by: Stoker on April 12, 2021, 08:56:08 pm

While I truly do not know specifically, I suspect that what he used was much like this one listed here:

https://www.jameco.com/z/STP-42D201-37-Shinano-Kenshi-12-Volt-1-8-Step-Angle-Bipolar-Stepper-Motor_2158531.html?CID=GOOG&gclid=Cj0KCQjw38-DBhDpARIsADJ3kjmgEoM077mnsHFU2ozGcrYWjmLwcg2pHkiPOuWB6DIGEeDbCtpS42YaAlaaEALw_wcB

They are about the same size, and of a similar configuration. However the specific operational specifications could be significantly different, though I'll bet this one is actually pretty close.

Title: The Psantama Blue Thunder Generators
Post by: Jim on April 12, 2021, 07:18:27 pm

The Psantama Blue Thunder Generators did we ever ascertain exactly what the stepper motors Peter used in his builds were?

https://modelenginegenerators.webs.com/