Author Topic: My Little Hit Engine from bar stock NEW update with Brushless Beta Max Stator  (Read 2843 times)

Offline Ye-Ole Steam Dude

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Re: My Little Hit Engine from bar stock (mostly) update
« Reply #15 on: September 01, 2018, 03:08:21 PM »
I agree with everyone else, sweet runner and a great sound.

Have a great day,
Thomas

Offline cfellows

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Re: My Little Hit Engine from bar stock (mostly) update
« Reply #16 on: September 01, 2018, 04:15:05 PM »
Nice little engine.  Sure is a sweet runner!

Chuck
So many projects, so little time...

Online Kim

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Re: My Little Hit Engine from bar stock (mostly) update
« Reply #17 on: September 01, 2018, 04:45:47 PM »
Its a beautiful runner!  Thanks for sharing the video.

Its nice that your dog will join you out in the shop.  Mine is an indoor girl.  I used to try to get her to stay out in the shop with me - got her a nice bed set it in a nice spot... but she never liked being out there.  She would just stand and stare at the door and doge inside quickly the first time anybody opened the door.  So I've finally given up and she just stays inside with my wife, where its warm in the winter, cool in the summer, and there's no weird stuff going on!

Nice little engine!
Kim

Offline rudydubya

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Re: My Little Hit Engine from bar stock (mostly) update
« Reply #18 on: September 01, 2018, 08:30:24 PM »
Running great, D.  I love the sound.  Thanks for the updated video.

Regards,
Rudy 

Offline chucketn

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Re: My Little Hit Engine from bar stock (mostly) update
« Reply #19 on: September 01, 2018, 08:54:31 PM »
Must add my complements to the list, very nice runner.
I haven't completed an IC engine yet, have a few pieces of a Webster in a box on the shelf...

Offline Brian Rupnow

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Re: My Little Hit Engine from bar stock (mostly) update
« Reply #20 on: September 01, 2018, 10:54:37 PM »
The engine runs nice. I thought it was going to be a hit and miss engine. I must have misread the title --I haven't heard of a "hit" engine before.---Good job!!
« Last Edit: September 02, 2018, 02:50:08 PM by Brian Rupnow »

Offline propforward

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Re: My Little Hit Engine from bar stock (mostly) update
« Reply #21 on: September 02, 2018, 01:53:02 AM »
I don't think he claimed it was a hit and miss engine. It's a little hit engine.
Stuart

Offline Brian Rupnow

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Re: My Little Hit Engine from bar stock (mostly) update
« Reply #22 on: September 02, 2018, 02:06:44 PM »
The style of engine you have built should be relatively easy to turn into a "Hit and Miss" engine. I think Gail in New Mexico actually did that.---Brian
« Last Edit: September 02, 2018, 02:51:55 PM by Brian Rupnow »

Offline propforward

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Re: My Little Hit Engine from bar stock (mostly) update
« Reply #23 on: September 02, 2018, 02:23:09 PM »
As far as I can tell the word "miss" is not in the title of the thread. It's a little hit engine. So I don't think anything is misrepresented. It's a nice little 4 cycle engine.
Stuart

Offline dwulfe

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Re: My Little Hit Engine from bar stock (mostly) update
« Reply #24 on: September 02, 2018, 04:41:47 PM »
Thanks guys for your encouragement.

Bill & Kim, my little buddies don't hang out in the shop much unless there is thunder.

Brian, When I first got it to run it was a hit or miss but not on purpose or by design. Lol

I hope to add some sort of governor to it at some point.



Offline dwulfe

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I added a stator and disc magnet from a Sony Beta Max VCR. Brushless motors have fascinated me for a number of years especially to generate electricity.  In boredom one day I decided to cannibalize an old sony Beta Max for grins. When I uncovered these parts I thought I might be able to retrofit it to my little engine. It took me over a year to figure out a way to integrate it with minimal  modification to the engine.

Offline Zephyrin

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Nice tiny engine, that runs very smoothly, clever use of the brushless motor...
how about a video in action, what kind of electric output you have ?

Offline dwulfe

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I'm not sure of the output. My a.c. multimeter gives erratic readings perhaps because the a.c. frequency is very high compared to 60 Hz a.c. . It gives a little more than 6vac per phase (2) at a moderate rpm (guess about 500). Higher rpms and the a.c. voltage gets erratic. With a bridge rectifier and a capacitor I measured 8.6vdc per phase.. Unsure of current but one phase will light an incadesent light bulb rated 12v @2.2 watts to about 50 to 75% of full brightness.

I'm getting some diodes to rectify both phases. Then I can test them in series and parallel to see what it does.

I plan doing a video after that is sorted out.

Offline dwulfe

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I got the output rectified and wired the two phases in series.  Not going to go off grid with it but it can do a little work and light up some LEDs
. Shown here running at a modest sustainable rate. Generating 7.5 volts with 40ma load. Ran for 25 minutes on 7ml of fuel