My first steam engine

Help Support HMEM:

student123

Well-Known Member
Joined
Oct 31, 2009
Messages
183
Reaction score
0
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

Member
Joined
Dec 27, 2009
Messages
19
Reaction score
0
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

Woodworker (reformed)
Joined
Apr 22, 2010
Messages
219
Reaction score
4
Congratulations. You are hooked.
 

student123

Well-Known Member
Joined
Oct 31, 2009
Messages
183
Reaction score
0
Robert,

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

Mike
 

d.bick

Well-Known Member
Joined
Nov 18, 2009
Messages
85
Reaction score
1
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

Member
Joined
Dec 27, 2009
Messages
19
Reaction score
0
d.bick said:
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

Senior Member
Joined
Dec 7, 2008
Messages
1,784
Reaction score
17
Woodguy said:
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

Well-Known Member
Joined
Mar 19, 2010
Messages
125
Reaction score
1
Excellent, congratulations on your first engine.

Nick
 

rsendys

Member
Joined
Dec 27, 2009
Messages
19
Reaction score
0
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

Well-Known Member
Joined
Jul 18, 2009
Messages
2,673
Reaction score
12
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

Member
Joined
Dec 27, 2009
Messages
19
Reaction score
0
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 :Doh:
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

Member
Joined
Dec 27, 2009
Messages
19
Reaction score
0
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

Member
Joined
Dec 27, 2009
Messages
19
Reaction score
0
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
 

Latest posts

Top