Author Topic: 3 pin plug engine  (Read 8717 times)

Offline mechman48

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3 pin plug engine
« on: December 04, 2014, 04:19:16 PM »
Hi
Just finished making my mini engine utilising the pins from a 3 pin plug; got the idea from a drawing I had from another contributor / forum... name escapes me at the mo'    :scratch:  ... but all credit where due...  quite fiddly to get the ports in the correct position, & being 1mm dia were very carefully drilled, thankfully I had fitted DRO's to my mill a while back so made locating a lot easier, having fingers like sausages didn't help either. the only down side it takes approx' 45 psi to get it running... but this was born out by the originator also saying that it took 50 psi to get his to run, probably due to the small port sizing but it does run. Unfortunately I only have a small spray compressor so only manage to get about 5-6 seconds of continuous running out of a 3 litre tank.. some low life took my other compressor plus associated piping & an oscillating engine earlier this year...  :wack:  but onward & upward as they say... onto the next project!
George.


Always look on the bright side of life, & remember.. KISS..' Keep It Simple Stupid'

Offline awemawson

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Re: 3 pin plug engine
« Reply #1 on: December 04, 2014, 04:24:28 PM »
 :bow: Nice work  :bow:


Don't plug it in will you  :zap:
Andrew Mawson
East Sussex

Offline mechman48

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Re: 3 pin plug engine
« Reply #2 on: December 05, 2014, 01:53:18 PM »
Thanks for the comment ...   :thumbup:   don't know what happened to the last pic   :scratch:  it looks fine in the folder... any solutions ?

George.
George.


Always look on the bright side of life, & remember.. KISS..' Keep It Simple Stupid'

Offline krv3000

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Re: 3 pin plug engine
« Reply #3 on: December 05, 2014, 04:59:03 PM »
well dun

Offline vtsteam

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Re: 3 pin plug engine
« Reply #4 on: December 05, 2014, 09:51:12 PM »
It looks like a fine little engine :thumbup: :thumbup: :thumbup: :clap:,

but I don't understand the 3-pin plug part.  :scratch:
I love it when a Plan B comes together!
Steve
www.sredmond.com

Offline mattinker

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Re: 3 pin plug engine
« Reply #5 on: December 05, 2014, 11:00:29 PM »
The three pin plug is a standard UK 15amp domestic power plug. Much bigger than the US ones, the earth pin, which is always present is some 8 x 4 mm in section is the principal piece of brass.

Here's a link to a three pin plug.

https://anjungsainssmkss.wordpress.com/2011/07/20/3-pin-plug/

Regards, Matthew.

Offline awemawson

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Re: 3 pin plug engine
« Reply #6 on: December 06, 2014, 03:33:20 AM »
Matt - it's 13 amps not 15. The previous 15 amp plugs of the 1950's -early 1960's era were 15 amp unfused at the plug.
Andrew Mawson
East Sussex

Offline mattinker

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Re: 3 pin plug engine
« Reply #7 on: December 06, 2014, 08:24:06 AM »
Thanks Andrew! Oops middle of the night brain fart, ridiculous really, I learnt to wire a a 13amp plug aged ten when we moved from Cardiff to Aberystwyth in 1962!

Regards, Matthew

Offline vtsteam

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Re: 3 pin plug engine
« Reply #8 on: December 06, 2014, 08:34:25 AM »
Okay I see, then just the linkages were from the pins of a plug. I was wondering earlier how the flywheel, cylinder etc. could have been made -- what kind of plug that was.
Anyway, nice little engine!!
I love it when a Plan B comes together!
Steve
www.sredmond.com

Offline Brass_Machine

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Re: 3 pin plug engine
« Reply #9 on: January 04, 2015, 05:51:01 PM »
Thanks for the comment ...   :thumbup:   don't know what happened to the last pic   :scratch:  it looks fine in the folder... any solutions ?

George.

The upload got corrupted. Try uploading it again in a reply.

Eric
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Offline steampunkpete

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Re: 3 pin plug engine
« Reply #10 on: January 04, 2015, 06:06:37 PM »
Quote
- it's 13 amps not 15. The previous 15 amp plugs of the 1950's -early 1960's era were 15 amp unfused at the plug

And if I remember rightly, the pins of the 15Amp plug were of round cross-section.

Offline John Swift

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Re: 3 pin plug engine
« Reply #11 on: January 04, 2015, 07:26:51 PM »
you can still buy the round pin plugs and sockets !

http://cpc.farnell.com/1/1/5210-15a-plug-round-pin-p153blk-mk-electric.html

MK make a fused version
 http://cpc.farnell.com/mk-electric/643whi/15a-fused-round-pin-plug-5a-fused/dp/PL01929

 my part of the UK had  a version of 15A round pin plug with  screw in fuse forming the live pin ! I believe they were made in Mancherster

   John

PS
found it  the fused 15A plug was made by Dorman Smith
http://www.fam-oud.nl/~plugsocket/DormanSmith1.html
« Last Edit: January 05, 2015, 12:44:10 PM by John Swift »

Offline mechman48

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Re: 3 pin plug engine
« Reply #12 on: January 05, 2015, 12:33:30 PM »
vtsteam.. thanks for the tip.. have retaken pic, lets see how it works...  :scratch:

George.


Always look on the bright side of life, & remember.. KISS..' Keep It Simple Stupid'

Offline vtsteam

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Re: 3 pin plug engine
« Reply #13 on: January 05, 2015, 12:54:39 PM »
I think thanks for the tip go to Eric. I'm just an admirer!  :beer:
I love it when a Plan B comes together!
Steve
www.sredmond.com

Offline mechman48

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Re: 3 pin plug engine
« Reply #14 on: January 06, 2015, 12:15:56 PM »
Oooops.. :palm:  Eric... thanks for the tip, retaking pic obviously sorted it   :headbang:

George.
George.


Always look on the bright side of life, & remember.. KISS..' Keep It Simple Stupid'

Offline crazypj

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Re: 3 pin plug engine
« Reply #15 on: February 19, 2015, 07:21:22 PM »
Thanks Andrew! Oops middle of the night brain fart, ridiculous really, I learnt to wire a a 13amp plug aged ten when we moved from Cardiff to Aberystwyth in 1962!

Regards, Matthew

I spent quite a lot of time in Aber when the new National Library was being built. I'll bet things have changed a lot in the last 20 yrs?
I know it's totally unrelated but have you got any pics to post up?

Offline mattinker

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Re: 3 pin plug engine
« Reply #16 on: February 19, 2015, 08:08:20 PM »
I left West Wales in 1976, haven't been back much since, you know it far better than I do now! My sister lives in Borth, but she's visited me far more thin I've visited her in the last thirty five years!!

Regards, Matthew.