This is my version of the old Clarkson 1/2" x 1/2" single acting vertical engine. Redrawn in metric and made with a combination of fabrications and cutting from solid rather than the castings which are still available from blackgates in the UK.
The finished parts
And the assembled engine
Like the little Husky which is also single acting and has the air/steam coming in and out the same hole it needs a bit more pressure than I usually run at but ticks over quite happily and also has a good turn of speed (tacho reading at the end of the video.
These little engines are quite good fun projects that can be slipped in during a longer build. They also suit smaller indoor machines for those that don't want to venture out into a cold workshop for the next 5 months. material costs are low and if you muck something up then you have not got to source a replacement casting.
The finished parts
And the assembled engine
Like the little Husky which is also single acting and has the air/steam coming in and out the same hole it needs a bit more pressure than I usually run at but ticks over quite happily and also has a good turn of speed (tacho reading at the end of the video.
These little engines are quite good fun projects that can be slipped in during a longer build. They also suit smaller indoor machines for those that don't want to venture out into a cold workshop for the next 5 months. material costs are low and if you muck something up then you have not got to source a replacement casting.
