Hello Guys
I am going to present you my latest piece of work:
I always wanted to make a steam driven pump for 1:22,5 / Lgb Scale.
My first attempt was this kind of valve (here without the pistons):
Then i turned the cylinder:
Then the control block became its steam ports:
This is a special tool i've produced to make the curve on the control block. It directly fits into the spindle of my watchmakers lathe.
Then i soldered these two parts together.
A view with all the parts separately:
The Piston is made of tho parts; this, because i needed the thread to go to the ground of the big hole in the cylinder.
This is my special tool for honing the cylinder bore. I used a lot of oil and some red polishing compound from dremel.
(Works quite well but still needs to get polished with a felt)
Next step:
Again, an exploded view of all the parts:
This is the piston rod with packing screw, waterpump-piston and control rod
Now, the pump's almost finished, just some details left:
Here you can see the water cylinder and its top.
It first didn't work very well with pumping water; i was just too careful when making the valve seat.
But now it works quite well; if the steam cylinder gets 3 bars of air pressure, it can create 4 bar water-pressure.
The total height of this pump is 58 mm,
Then the steam cylinder has:
8mm bore
8mm stroke
The water cylinder has:
4mm bore
(8mm stroke)
And i also have a video on Youtube:
[ame=http://www.youtube.com/watch?v=nHdngVRW9YI]http://www.youtube.com/watch?v=nHdngVRW9YI[/ame]
Finally two pictures so you can imagine how small it actually is:
Here you can see it near the air pump of my lgb-mogul:
Florian
I am going to present you my latest piece of work:
I always wanted to make a steam driven pump for 1:22,5 / Lgb Scale.
My first attempt was this kind of valve (here without the pistons):
Then i turned the cylinder:
Then the control block became its steam ports:
This is a special tool i've produced to make the curve on the control block. It directly fits into the spindle of my watchmakers lathe.
Then i soldered these two parts together.
A view with all the parts separately:
The Piston is made of tho parts; this, because i needed the thread to go to the ground of the big hole in the cylinder.
This is my special tool for honing the cylinder bore. I used a lot of oil and some red polishing compound from dremel.
(Works quite well but still needs to get polished with a felt)
Next step:
Again, an exploded view of all the parts:
This is the piston rod with packing screw, waterpump-piston and control rod
Now, the pump's almost finished, just some details left:
Here you can see the water cylinder and its top.
It first didn't work very well with pumping water; i was just too careful when making the valve seat.
But now it works quite well; if the steam cylinder gets 3 bars of air pressure, it can create 4 bar water-pressure.
The total height of this pump is 58 mm,
Then the steam cylinder has:
8mm bore
8mm stroke
The water cylinder has:
4mm bore
(8mm stroke)
And i also have a video on Youtube:
[ame=http://www.youtube.com/watch?v=nHdngVRW9YI]http://www.youtube.com/watch?v=nHdngVRW9YI[/ame]
Finally two pictures so you can imagine how small it actually is:
Here you can see it near the air pump of my lgb-mogul:
Florian
8)
