Some of my projects

[Davyboy]

Very nice display of your work, Marv.  Thanks for sharing it with us.  Many of those are items I'd like  to build.  I really like Hero's engine.

Davyboy

[ironman123]

WOW Marv, quite a remarkable assembly of your projects.  

Hope they were all positive experiences.

Ray

[Maryak]

WOW Marv, quite a remarkable assembly of your projects.

What Ray said. 

Best Regards
Bob

[steamer]

What they all said!

I especially like the shaper and drill press...but then I'm a softy for machine tools! .very nice!

Dave

[arnoldb]

A very nice collection indeed Marv 

I really like the #35 steam pump and the #39 rope drive engines - those are pretty rare!

I think the engine RLeete asked about is the #35...

Kind regards, Arnold

[mklotz]

Kevin,

Yes, the shaper has an operating clapper box. 

When I get a chance, I'll take some more pictures of the machine tools.


Pete,

Yes, it can be fired.  The barrel is a recycled .22 rifle barrel.  You can see more pictures and some words at:

http://www.modelenginemaker.com/index.php/topic,460.new.html#new


rleete,

I don't have a video of mine operating but this video from Youtube will show you how it works...

<a href="https://www.youtube.com/watch?v=SNxR-lEZXoQ" target="_blank">http://www.youtube.com/watch?v=SNxR-lEZXoQ</a>

The engine you asked about is Elmer's steam pump.  The double-acting engine is on the right.  Its rod connects directly to the piston in the double-acting pump on the left.  Thus the full force of the engine is available to drive the pump.  Because of this direct connection it's awkward to attach a flywheel, hence the ball and socket connection to the wheel.  This means that the connecting rod is rotated about its axis a bit as the flywheel rotates.  This doesn't seem to affect performance since the pump is capable of impressive output for its size.


Davyboy,

Yeah, Heron's engine is a favorite of mine too.  My then toddler daughter christened it my "toilet engine".  It's a great teaching tool for kids.  They can quickly appreciate how steam can be made to generate motion.


And to all of you who responded to the thread

Thanks for the kind words.  I appreciate them very much.  At last count my collection consists of about three dozen engines and every one of them was a joy to build and a wonderful learning experience.

[KB]

Three Dozen ?!! That's amazing!

How about a shot of the display shelves?

Looking forward to the pictures.

Kevin

[mklotz]

Three more of Elmer's engines...







and a curious pseudo-Wankel from the pages of (I think) ModelTec.  The cylindrical piston rotates on the drive shaft and the "cylinder" moves up and down to comply with this motion.  Totally impractical but fun to watch its gyrations.



Keith requested more pictures of the machine tools...

Here the clapper box is up



and here it's down.  Note the ratchet wheel that provides the power cross feed



A look inside the yoke access door.  The yoke follower can be repositioned to adjust the throw of the ram



The PMR arbor press



The lathe headstock showing the backgear.  Note the bearing oil cups - they're functional



This will give you an idea of the size of the oil cups



The lathe gears.  Included is a tumbler reverse and the drive to the rod that powers the automatic carriage feed drive.



The carriage.  The small fluted knob on the front of the apron engages the auto carriage feed



Here are the parts that make up the lantern toolpost for the lathe.  (The one on the shaper is similar.)



The 4jaw chuck.  It's one inch in diameter and fully functional



The power table feed on the horizontal mill.  Note the spheres used to form the two universal joints.  I had to build a special jig to drill two orthogonal holes in each sphere.



A closer look at the drive and downfeed on the drill press



The drill press vise is not part of the PMR kit.  I built this one myself.  It uses a 0-80 screw.

[KB]

That's some pretty fine craftsmanship and attention to detail.

Thanks for the additional pictures.

[steamer]

That's beautiful work Marv!   I really like the vice!
 

Did you cut the balls in the universal joints?

Dave

[mklotz]

That's beautiful work Marv!   I really like the vice!
 

Did you cut the balls in the universal joints?

Dave

No, I cheated and bought those.  Turning a perfect 3/16" sphere is more work than I need to take on when they can be bought cheaply.

[Ken I]

Having never seen your collection before, I am quite enthralled.

Loved the deck gun - what's it based on ?

Regards,
              Ken

[mklotz]

Having never seen your collection before, I am quite enthralled.

Loved the deck gun - what's it based on ?

Regards,
              Ken

The gun is covered in more detail here...

http://www.modelenginemaker.com/index.php/topic,460.new.html#new

[Davyboy]

Hi Marv.  Those models are GREAT!  Please, if I may ask, more info on Heron's engine.  I have a float similar to that in my collection, just for that model.   How did you join the manifold to the top of the ball?  Is it threaded for removal and filling?  And it hangs from a "swivel" as used in fishing?  I can finally see a plan coming to shape in my mind's eye, after seeing your fine work.  Do you mind if I copy?  Thanks in advance, for any advice.

Davyboy

[AussieJimG]

A great collection Marv, and I particularly like the little fluidyne that you snuck in. They fascinate me; I have built one like yours and it works. But trying it in larger sizes has caused lots of grief.

Jim