My first steam engine

[student123]

Robert,

Looking good.
One problem I hit was having the inlet/outlet holes aligned,

http://www.homemodelenginemachinist.com/index.php?topic=10445.0

so if you havent already done so, you may want to check alignment at this stage. Without the crank / crank disc it wont be an exact check,
but might just show up a potential problem.

As to piston fit, when I covered the vent holes in the cylinder & pulled the piston out, it made a 'pop' sound (hope that makes sense).

Good progress so far, well done.

Mike

 

[rsendys]

Cranck Wheel

Flywheel

Crank Pin

Shaft

At this point, I had all the basics. All other missing things I replaced by rope, wire, tape and vice ;D.
I made the first start the engine.
It works!!! Thm:
Hmm, the quality of this action - that is scrap that is about to fall apart. Rof}
I've got a lot more improvement. 8)

[ame=http://www.youtube.com/watch?v=y4ixYP0_Cvo]http://www.youtube.com/watch?v=y4ixYP0_Cvo[/ame]

 

[kjk]

Congratulations. You are hooked.

 

[student123]

Robert,

Well done - you've got things working for your first engine & pretty quick too.
Congratulations!

Mike

 

[d.bick]

Congratulations on your first engine. Thanks for sharing the build with us, and the excellent step-by-step photos (We like photos)
I’am sure with the skills learnt so far another project will soon be in the making.
Dave Bick

 

[rsendys]

I’am sure with the skills learnt so far another project will soon be in the making.

Of course!
But first I want to finish this

My plan:
1. Do the Base - I need my vice for other purposes
2. making the air fitting - now it is a piece M6 pierced through - does not look good
3. Why flywheel so rocks? - I need to fix it:
a - a better fit shaft
b - make the flywheel and shaft again by a different method
4. Look for whether by changing the valve openings in upright - do not improve engine performance
5. Perform a cylinder in the form: a bronze bushing in a block of aluminum, of course + new piston
;D

 

[bearcar1]

Congratulations. You are hooked.

Yep. He's hooked alright. Well done for the first time around. You already know what it is that could use some "re-engineering". Now it;s just a matter of the learning curve. Don't be afraid of attempting the second version of your new engine, applying different/new techniques along the way.

BC1
Jim

 

[njl]

Excellent, congratulations on your first engine.

Nick

 

[rsendys]

Thank you all for your good words :bow: 8)

I realize so slowly. finishing works.

Now I have the base ;D

Now, the engine looks like this:

Unfortunately, his work still resembles a piece of scrap ;D

[ame=http://www.youtube.com/watch?v=ky-pTPpvUac]http://www.youtube.com/watch?v=ky-pTPpvUac[/ame]

But it works - a total of about one hour this engine worked - perhaps I should install the hour meter Thm:
I noticed that there have been processes of lapping, I tried to use paste for polishing for non-ferrous metals - but it was not a good idea - the engine stopped - it may have something else to do.
I am very curious what is the average fault-TIME :noidea:

 

[Deanofid]

Congrats on your first engine. Having the first one a runner a 100% success rate, you know!
Not sure what you mean by "fault-time". If you are asking how long an engine lasts, it depends on
how it was built. You'll get better each time and soon have engines running for hundreds of hours.

You say it stopped. You may have opened up the bore too much if you were trying to lap it. Tear it
down, clean it well and use some light oil when you re-assemble it. If you still have trouble, you could
try making another piston. You know how! : )
I wouldn't worry about lapping the piston/bore for this type of engine. Make the piston about .001"
smaller than the bore and it should be good.

Dean

 

[rsendys]

Air fitting

Next operation and break ! :wall: :redface2:

Maybe it is not possible, the material - brass (B101: CuSn10P) - diameter 6 mm, 3.5 mm bore and external thread M6 x 1 - 0.7 mm is the wall ! provided that everything is done exactly the super oh:
ok - we change the concept of it

Ready ;D

This is not a good idea, it works, but it is not accurate. I should use thread M6x0.5 and a hole 3 mm. Then the wall would be 1.2 mm. Material: Steel is probably the answer Thm:

 

[rsendys]

Small modification.

Robert

 

[rsendys]

New bearings nad new shaft

It's much better

[ame=http://www.youtube.com/watch?v=32SBIpiU5SU]http://www.youtube.com/watch?v=32SBIpiU5SU[/ame]

Robert

 

[rsendys]

I modified the piston - I added a PTFE rings.

This modification saved my piston which was too loose, and I learned some about PTFE ;D

Robert