Hi, this is my first real post here but i have been reading the forums for a few years now so thought it time a added somthing.

This is a project i compleated a while ago now, but just recent found the pics of making it again. The pics dont cover everything but still may interest some people.

Like most i had a small steam engine and wanyed to use it to power somthing usefull and so i designed my own pump. This is no exact replica of any sort but designed from my experiance of working on various different full size pumps and work as maintenance and assembly and casting process of industrial pumps.

The design is a classic snail shell type pump. I used fusion 360 to first make disign it in 3d then i make the pattern parts using a 3d printer, il add pics and details.

And some of the finished match plate patterns, with a view how they are used with the casting flasks.

All the castings finished and a few days spent making the drawings using fusion 360 and waitiing for the postman to deliver the bar stock and fittings.

The bell housing is a awkward part to machine, it was first mounted in the 3 jaw and drilled through at 8mm. Then super glued onto a piece of 8mm bar stock. And then held in the 3jaw using the bar stock to machine the joining flange and cut the bore for the inner bearing, i used a 10mm milling cutter to start the bore then used a small boring bar to open up the 12mm bore for the bearing.

I then drilled the holes for the the studs and fitted the bell housing to the rear cover, mounted on the surface place and machined the outer bearing bore.

Edited By cringle on 01/05/2019 23:50:00

The model will be run by a small electric motor for display purpose, thus is just the cheep comon dc motors suplied in most small toys and cars and was i think less than a pound on ebay. I 3d printed the motor shroud and rails then sand and paint to make the motor look more suitable. Finaly getting close to finishing this model now. All the parts have been painted and all the brass bits polished. I also made a brass oil cup and a small copper pipe for the gland drain.

I made two more pipe flanges and copper pipes for the pump. I have a pipe bender but was not happy with the bends so dicided to cut and solder the bends, this was done using a 3d printed miter block for the angles and lots of time cleaning up the solder. The water tank is just a tin can with the pipe and flange soldered to it and some small brass brackets to mount it.

Edited By cringle on 13/05/2019 19:45:09