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Author Topic: My Little Rocking Engine.  (Read 14018 times)

Offline Stilldrillin

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My Little Rocking Engine.
« on: September 01, 2009, 03:56:33 AM »
After some 6 weeks or so, I thought it was about time I showed my little rocking engine build.......

Where to start? The cylinder! 3/4" brass bar, 10mm reamer, only.

Work out depth of milled recess + bore depth + drill depth + a bit for wriggling......

Off we go.......




Realise afterwards, 4 small flats would help with the vice work!




Mill the recess......  :thumbup:




Not enough material length left!  :bang: :bang:

Face some off (so no confusion later)........  ::)




Start again!  ::)

Other end of the bar...... MORE wriggling room, this time.......

Got it right, just, on second attempt......  :thumbup:


Made a start on the flywheel......

Had no suitable brass, so made it from parts of a filing cabinet, a la Mr Hill.




Here it is acting as a 1/8" spacer, while I drill the conrod.




Getting a nice collection of parts..... I could run it now! Perhaps...... :thumbup:





THEN the window cleaner put his foot through me brittle carport roof.............   ::)

All stopped, for repairs......:bang: :bang:

David D


« Last Edit: September 08, 2009, 03:36:04 AM by Stilldrillin »
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David.

Still drilling holes... Sometimes, in the right place!

Still modifying bits of metal... Occasionally, making an improvement!

Offline NickG

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Re: My Little Rocking Engine.
« Reply #1 on: September 01, 2009, 06:16:30 AM »
Great stuff David, can't wait to see it running!

There is always something that gets in the way!  :bang:

I should be making a start on mine this week. Need to remember to bring in drawings to print, got milling machine and vice to bolt down then I'm away!

Nick
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Offline Stilldrillin

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Re: My Little Rocking Engine.
« Reply #2 on: September 01, 2009, 12:35:44 PM »
I won`t be posting a carport rebuild log. But here`s a few pics.......

Pulling out some 250+ serrated 70mm long nails.





All cleared & top surfaces painted with waxoyl...... Cos I`d got a can of it, doing nothing....





This is the third time of roofing, due to the plastic turning brittle.
I realised I would be around 75yrs old by next time...... We`ll do it with steel instead!

Can you imagine the chaos..... Mrs Drillin & me, only..... Combined age of almost 130...... Fitting roof sheets in the breezy flyaway conditions of a British summer......  :bang:

But, no accidents to speak of..... All done..... Time to clean up.





Don`t forget the window!





Rinse off.





The brilliant white finish fools the camera, every time.




Added a nightlight over the garage door, to deter the nightime vermin.... Hopefully!



Well, back to the workshop, maybe.....

David D


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David.

Still drilling holes... Sometimes, in the right place!

Still modifying bits of metal... Occasionally, making an improvement!

Offline Divided he ad

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Re: My Little Rocking Engine.
« Reply #3 on: September 01, 2009, 01:16:24 PM »
Nice start to your rocker David  :thumbup:   (note.... Get mine started again! )


The cylinder MkII seems to have been modified to take a different mounting style?



Looks like you had fun with the roof  :)

Been there done it as part of the current job....  Not much fun at 34 either!!  (Still got to replace my workshop roof, been avoiding that one!!)

Now all you need is a nice facia in PVC and you''ll not have to climb a ladder to it for a long time!  :thumbup:





Ralph.


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Offline arnoldb

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Re: My Little Rocking Engine.
« Reply #4 on: September 01, 2009, 03:45:47 PM »
Good start with the rocker David  :headbang: , and nice recovery x2  (one rocker & one roof !) I Wonder which of the recoveries were easier  :lol:

You're reminding me of some things I need to do as well.... Another Rocker (My one sister wants one for her birthday!, so no  :scratch: on what to give her  :lol:), and paint my workshop roof with insulating paint before summer hits here in Namibia  :)

 :beer: Arnold
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Offline Stilldrillin

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Re: My Little Rocking Engine.
« Reply #5 on: September 02, 2009, 04:23:39 AM »
Thanks for your comments chaps,  :thumbup:

Darren, the fascia board is only 2yrs old, in pressure treated timber.
A rub down with a wire brush & a nice coat of waxoyl should see it good for many years yet.

I prefer the look of genuine timber, to plastic......


Anyroad.......

Got the parts assembled......




 Luckily, they just pressed together & stayed together.




Connected my little compressor & nothing happened!

Shot of WD40.... Nothing!

Application of a few choice words...... A few half hearted turns.

Out of vice...... Turned in all directions, on the end of the airline...... Steady, 100 piffing rpm!!!!!     YEE HAARR!!!!!!  :ddb: :ddb: :ddb:

Immediately phoned my pal........ "Listen to this"!!!!!....... He`s a gardener....... Was up a tree, with a chainsaw at the time.  ::)

He was impressed!  :thumbup:

OH, HAPPY DAY!  :D :D

I know I`ve posted this vid before. But someone might not have seen it.....

Dunno why the camera insisted on continuing filming, until I hit the off button.....  :scratch:




Right! Time to carry on with making it into an engine......  :thumbup:

Machined some fins & reduced the diameter between ends, for the pipe nozzle. But kept the scrap end connected for chucking purposes.

This is where the 1/8" cutter walked out of the collet.......  :bang:

Yes, John B, yer were right....... The cutter shank is tapered.......  :scratch:




I finished off by using a mandrel in the bore, to finish machine the head/ airline end.


Next up was the flywheel. Bought some 1/4" brass, and relegated the steel flywheel to be the base.

Wasn`t too sure how to go about things...... So I turned a blank & drew on it with marker pen, then traced it round, a few thou` deep with 2mm endmill, noting the positions/ settings......




I think that looks ok......  :thumbup:




Turn the recess, boss etc.




Drill out the corners, to ease the hockey stick effect.




Machine out the straight lines first.




Then the rads.




Collection of parts.




The components had been assembled/ parted more times than  a lego set, so were no longer a press fit. It needs the crank throw fixing with a grub screw.

.100" wide...... 2mm screw.....




Held me breath, & tapped between finger & thumb, no broken tap, no problem!  :D




Well....... That`s it.......




STILL awaiting the delivery of a suitable allen key, so I can nip it up & test it properly......  :bang:




David D









« Last Edit: September 08, 2009, 03:37:08 AM by Stilldrillin »
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Still drilling holes... Sometimes, in the right place!

Still modifying bits of metal... Occasionally, making an improvement!

Offline sbwhart

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Re: My Little Rocking Engine.
« Reply #6 on: September 02, 2009, 06:42:16 AM »
Nicely done done and shown david David, I really like that fly wheel.

Have fun

Stew
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Offline Bernd

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Re: My Little Rocking Engine.
« Reply #7 on: September 02, 2009, 08:42:58 AM »
Nice looking engine David.

I had trouble to get mine to run at first too. But finally got it going. Runs real nice now. And like you I need to finish the base.

Bernd
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Offline chuck foster

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Re: My Little Rocking Engine.
« Reply #8 on: September 02, 2009, 04:58:51 PM »
looking good david  :bow: :bow: :thumbup: :thumbup: :clap: :clap:

i have the plans to build one but i don't think it will get time till after christmas  :bugeye:

chuck :wave:
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Offline arnoldb

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Re: My Little Rocking Engine.
« Reply #9 on: September 03, 2009, 03:34:38 AM »
Very nice little rocker David - Well Done  :clap:  :)

 :beer: Arnold
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Offline Gerhard Olivier

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Re: My Little Rocking Engine.
« Reply #10 on: September 03, 2009, 10:46:15 AM »
Thats just lovely

Great job

Gerhard
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Offline Divided he ad

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Re: My Little Rocking Engine.
« Reply #11 on: September 03, 2009, 01:24:01 PM »
Ahh.... I get the extra long cylinder bit now  :thumbup:


Nicely done David  :clap:



How long does it take to get an allen key!?!? Don't they know we're waiting to see the final video?  ::)


It was me on about the plastic.... I know a lot of people still like the old wood finish...... Some of that there coated plastic looks pretty similar to me from 10' away though  :lol:







Ralph.
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Offline Stilldrillin

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Re: My Little Rocking Engine.
« Reply #12 on: September 04, 2009, 01:58:10 AM »
Thanks for all your comments chaps......  :thumbup:

How long to get an allen key? Hmmmmmm.........  :scratch:

It`s only coming from Bridlington, some 85 miles away. "Shipped" exactly 7 days ago!

I`ve had parcels arive in Aus / NZ inside 6 days!  :bang:

Meanwhile, the engine is sitting beside me computer, like a little orphan...... Waiting......  :(

David D
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Still drilling holes... Sometimes, in the right place!

Still modifying bits of metal... Occasionally, making an improvement!

Offline Stilldrillin

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Re: My Little Rocking Engine.
« Reply #13 on: September 08, 2009, 01:07:34 PM »
Well, I guess you`ve all read about the .9mm allen key that wasn`t...... And cost me some £13+  :bang: :bang:

Jimmy O has lent me one to be going on with. So, lets get on with it!  :D


Just a couple more pics, & a rather poor vid.......

I took this one to show the minute size of the grubscrews......




This is the shortened pedestal. I think it looks more in proportion than original to drawing....
Also I fitted a tiny washer to stop the conrod rubbing on the crank face. It made quite a difference to the revs.




Finally this afternoon`s vid.   ::)

The sun was much too bright. Then the compressor started leaking oil down the pipe & slowing the engine.

I originally had 2500rpm. Now slowed to around 1500rpm.

Sorry about the strobe effect on the flywheel..... Listen to the sound to get some idea of speed.......




David D
« Last Edit: April 18, 2015, 03:00:25 PM by Stilldrillin »
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Still drilling holes... Sometimes, in the right place!

Still modifying bits of metal... Occasionally, making an improvement!

Offline sbwhart

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Re: My Little Rocking Engine.
« Reply #14 on: September 08, 2009, 01:22:07 PM »
Very nice indeed David  :clap: :clap: :clap: :clap: :clap: :clap: :clap: :clap:
 :nrocks: :nrocks: :nrocks: :nrocks: :nrocks:

Have fun

Stew
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Offline arnoldb

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Re: My Little Rocking Engine.
« Reply #15 on: September 08, 2009, 04:29:43 PM »
 :beer: David D - lovely runner  :) :)
And nothing wrong the the vid that I can see  :D

 :beer: Arnold
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Offline NickG

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Re: My Little Rocking Engine.
« Reply #16 on: September 08, 2009, 05:52:57 PM »
Well done, running very nicely indeed!  Hope mine does, if I ever get there! :thumbup:
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Offline Divided he ad

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Re: My Little Rocking Engine.
« Reply #17 on: September 08, 2009, 07:35:17 PM »
Nice work David  :thumbup:


Good job from Jimmy too  :clap:  'tis good to see the web working wonders again   :mmr:



The strobing can't be helped much with the cameras, they all do it at one point or another.... All to do with the frames per second Etc...... 


Good enough vid' for me David, very nice looking little fella..... I must get some shop time in and see if I can make a spoked flywheel!

I'm still a bit slow on that one!










Ralph.

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Offline Stilldrillin

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Re: My Little Rocking Engine.
« Reply #18 on: September 09, 2009, 02:20:31 AM »
Quote from: Divided he ad on September 08, 2009, 07:35:17 PM

Good job from Jimmy too  :clap:  'tis good to see the web working wonders again   :mmr:

Ralph.

Yeah!

Aren`t we all a nice bunch of mates on here!  :clap: :clap: :clap:

David D
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David.

Still drilling holes... Sometimes, in the right place!

Still modifying bits of metal... Occasionally, making an improvement!
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