Author Topic: First Runner  (Read 6342 times)

Offline BiggerHammer

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First Runner
« on: March 20, 2011, 07:23:22 PM »
Well here she is. Not much to look at. Some parts from other, well the term projects does not quite fit. 3/8ths bore about a 2 cm stroke. I do not have a compressor handy to run it. However I tried to keep the tolerances fairly tight. If you hook up a hose and blow REALLY HARD you can get it to run a bit..... then you pass out. Time to find a small compressor and send it with the nephews to school.



(Yes I know.... another wobbler. I gotta start somewhere. At least I built it without plans.... and it shows.  :lol: )

Offline rleete

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Re: First Runner
« Reply #1 on: March 20, 2011, 08:44:01 PM »
What's wrong with wobblers? 

Running on breath power is a good sign that you've made it right.  Looks like a good start.
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Offline raynerd

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Re: First Runner
« Reply #2 on: March 20, 2011, 11:21:52 PM »
Looks a cracker, very well made and a great start!
Chris

Offline Stilldrillin

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Re: First Runner
« Reply #3 on: March 21, 2011, 03:11:03 AM »
There's nowt wrong wi wobblers!  :thumbup:

As that one runs, without a compressor, there's even less wrong with it......  :D

Well done, BH!  :clap: :clap:

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

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

Offline BiggerHammer

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Re: First Runner
« Reply #4 on: March 21, 2011, 05:21:32 AM »
Thanks guys, I must admit it was fun making it. Figuring out how to correct my errors without tossing the part. A good learning experience. Now I must depart for a few days. See you all soon.

Offline Bernd

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Re: First Runner
« Reply #5 on: March 21, 2011, 08:27:06 AM »
Without plans, now that's impresssive.  :thumbup:

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Offline NickG

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Re: First Runner
« Reply #6 on: March 21, 2011, 09:35:59 AM »
Nice 1  :thumbup: Wobblers are the best place to start if you ask me!
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Offline gazz

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Re: First Runner
« Reply #7 on: March 21, 2011, 11:05:21 AM »
well done, must be a good feeling to see your first engine running,

as for a compressor, if she runs on mouth air... try the other end, might have to eat a tin of beans and mushy peas first, and point the exhaust out the door...  ::)

Offline snoopdog

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Re: First Runner
« Reply #8 on: March 30, 2011, 03:52:55 PM »
Your engine looks great.

 I made mine with no plans and eyeballed everything, made everything on a drill press but the flywheel. None of mine run on lung power.



Then I made a little better looking one than the first with no plans.


Offline saw

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Re: First Runner
« Reply #9 on: March 30, 2011, 04:18:17 PM »
It's no wrong with wobbler, it's a good start and with no plans I am inpressed.  :clap:
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Offline bigmini

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Re: First Runner
« Reply #10 on: March 30, 2011, 06:23:39 PM »
Well here she is. Not much to look at. Some parts from other, well the term projects does not quite fit. 3/8ths bore about a 2 cm stroke. I do not have a compressor handy to run it. However I tried to keep the tolerances fairly tight. If you hook up a hose and blow REALLY HARD you can get it to run a bit..... then you pass out. Time to find a small compressor and send it with the nephews to school.



(Yes I know.... another wobbler. I gotta start somewhere. At least I built it without plans.... and it shows.  :lol: )

Nicely done. I hope the one I'm about to start on goes as well as this.

Offline BiggerHammer

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Re: First Runner
« Reply #11 on: March 30, 2011, 07:02:11 PM »
The main thing that helped on this was getting a set of reamers  :dremel: and chucking up a wooden dowel rod to lap the cylinder wall. I then put a bit of brasso on the piston and cycled it back and forth by hand rotating it to insure smooth operation.

Those are some nice wobblers there snoopdog. I think I need a bigger drillpress not quite enough clearance for big stuff. The kitchen is getting a bit full though. So many tools to buy, so little spare cash and room (hmmm I don't use the living room much...)

Oh, by the way the nephews were THRILLED with the engine. Now to  :proj: something new. Figure out how much I can do with what I have. That being an 8 x 14 lathe and a smallish drillpress and limited machining skills. This shall be FUN!


Offline rleete

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Re: First Runner
« Reply #12 on: March 30, 2011, 07:46:24 PM »
Oh, by the way the nephews were THRILLED with the engine.

The neighborhood kids all love my engines, and even ask me to get them out and run them once in a while.  Children are fascinated by the moving parts - which makes us all big kids, right?
Creating scrap, one part at a time