Author Topic: Scratch Building a Mini Wobbler  (Read 11308 times)

Offline Marinus

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Scratch Building a Mini Wobbler
« on: August 11, 2013, 11:24:55 AM »
Hi all,

Finally got to finish the Mini Wobbler I began in May :embarassed:. This is totally scratch built. ;)
It runs like "crazy" on just 8psi 8) I am just going to remake the crank shaft, because there is a little play on the main bush :hammerbash:

The crank shaft.(the groove in the middle was filed in to allow the oil to stay in the bush :-[)

The engine stand.

Just a close up of the fillet :)

Main bush.

Inlet tube.

Piston and piston rod.

Flywheel (was an old fire extinguisher pressure gauge body, just turned it and melted some lead in it for wieght >:D)

Cylinder.





Whole assembly :)

I am going to drill mounting holes in the base and screw it down to a wooden/metal base. Waiting for the silver solder I ordered to build a 35mm boiler ;D
Kind regards

Marinus Kruger

Online steamer

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Re: Scratch Building a Mini Wobbler
« Reply #1 on: August 11, 2013, 11:35:56 AM »
Well Done Marinus! :ThumbsUp:

GoodOnYa Mate!

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline b.lindsey

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Re: Scratch Building a Mini Wobbler
« Reply #2 on: August 11, 2013, 12:12:36 PM »
Very nice Marinus...any chance of a video of it running?

Bill

Offline Marinus

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Re: Scratch Building a Mini Wobbler
« Reply #3 on: August 11, 2013, 12:33:13 PM »
Thank you Dave and Bill :)

Once I have made a new crankshaft I will upload a video ;)
Kind regards

Marinus Kruger

Offline Ian S C

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Re: Scratch Building a Mini Wobbler
« Reply #4 on: August 11, 2013, 01:16:36 PM »
Nice little engine, what bore and stroke? I'v got a little one that I made years ago with a bore of 3 mm, and a stroke of 6 mm, I had it in a little boat, and sailed it on the pond at the local recreation centre.  Lake's about 100 m X 50 m, it usually would sail the length on a boiler full of water.     isc

Offline Don1966

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Re: Scratch Building a Mini Wobbler
« Reply #5 on: August 11, 2013, 01:49:55 PM »
Nice work Marinus. Waiting for the video.

Don

Offline Marinus

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Re: Scratch Building a Mini Wobbler
« Reply #6 on: August 11, 2013, 01:59:58 PM »
Thank you Ian and Don :)
Bore=7mm
Stroke=10mm

I want to put this one in a boat too ;)

Don........ I just made a few vids of the engine running, going to upload it when I have another vid of it with the new crankshaft :0
Kind regards

Marinus Kruger

Offline DaveH

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Re: Scratch Building a Mini Wobbler
« Reply #7 on: August 11, 2013, 02:20:58 PM »
Very nice  :) some nice soldering  :ThumbsUp: as well
 :cheers:
DaveH

fcheslop

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Re: Scratch Building a Mini Wobbler
« Reply #8 on: August 11, 2013, 02:31:27 PM »
A very nice wobbler you have built :NotWorthy: :NotWorthy:
Congratulations and looking forward to her first sea trials
best wishes
frazer

Offline Marinus

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Re: Scratch Building a Mini Wobbler
« Reply #9 on: August 11, 2013, 04:13:24 PM »
Thank you Dave and Frazer :) Now when do I start on another engine :LittleDevil: Maybe I better finish on what I started  :embarassed:
Kind regards

Marinus Kruger

Offline arnoldb

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Re: Scratch Building a Mini Wobbler
« Reply #10 on: August 11, 2013, 04:15:53 PM »
Good going Marinus  :ThumbsUp:

Kind regards, Arnold
Building an engine takes Patience, Planning, Preparation and Machining.
Procrastination is nearly the same, but it precludes machining.
Thus, an engine will only be built once the procrastination stops and the machining begins!

Offline Marinus

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Re: Scratch Building a Mini Wobbler
« Reply #11 on: August 11, 2013, 05:31:02 PM »
Thank you Arnold :)
Kind regards

Marinus Kruger

Offline Bearcar1

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Re: Scratch Building a Mini Wobbler
« Reply #12 on: August 11, 2013, 07:36:59 PM »
I always enjoy seeing these simple wobblers being made, especially from no one particular set of plans. Each one is unique unto itself and the subtle differences in their construction is what makes them so interesting. A job well done Marinus  :ThumbsUp:  Well done indeed!


BC1
Jim

Offline ths

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Re: Scratch Building a Mini Wobbler
« Reply #13 on: August 11, 2013, 09:50:27 PM »
Nice work, Marinus, you're obviously enjoying yourself.

Cheers, Hugh.

Offline Tennessee Whiskey

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Re: Scratch Building a Mini Wobbler
« Reply #14 on: August 11, 2013, 10:04:56 PM »
Marinus, I've been following all your posts, as I love to see a young lad such as yourself join in with us "old folks" and feel at home and enjoy yourself. You are doing a splendid job as is whomever is mentoring you. I for one feel you are one our greatest assets here at MEM as you are our future.

With Best Wishes
Whiskey

 

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