Hi guys! This is my first post and I'd like to say hello. My name is Adam and I'm a just a beginer in building engines. English is my second language, but I will be trying to avoid any technical language mistakes.
A few days ago I started building a simple oscilating engine. The piston diameter will be 19 mm ( ~0,75 inch) and about 1 inch stroke
I've decided to build this motor ass well as it is possible - using well fitted steel-bronze bearings. There is not too much to show yet, but lets post some pictures!
The piston axle is made of steel and bronze, the steel axle diameter is 8 mm (0,32 inch). It has 2 working surfaces, the "empty" place beetwen them works as a oil container. The axle has also 6 small oil grooves.
And naked
The main axle is made of steel and bronze too, images shows it just after a few minutes of lapping. I don't know the exact name of such a bearing, but it could be called conical bearing? This is the same thing as in the old lathes in main spindle. It has no clearance because of the possibility of pulling one bearing closer to the second one using 2 nuts.
Just before connecting two parts (I did this that way to have a possibility to make bearing of a better stell)
The whole bearing "inside". The steel part has 3 oil grooves on each side:
This is the main "body", not finished yet
Piston with axle (not soldered yet):
I bet somebody is going to ask about plans... Well, actually I dont have them (just a few simple hand-drawn sketches). All the dimensions I took from my old "engine", which I made a few years ago as a simple one-day project. Basically, I just multiplied all dimensions by 2
Here it is, my little fella:
A few days ago I started building a simple oscilating engine. The piston diameter will be 19 mm ( ~0,75 inch) and about 1 inch stroke
I've decided to build this motor ass well as it is possible - using well fitted steel-bronze bearings. There is not too much to show yet, but lets post some pictures!
The piston axle is made of steel and bronze, the steel axle diameter is 8 mm (0,32 inch). It has 2 working surfaces, the "empty" place beetwen them works as a oil container. The axle has also 6 small oil grooves.
And naked
The main axle is made of steel and bronze too, images shows it just after a few minutes of lapping. I don't know the exact name of such a bearing, but it could be called conical bearing? This is the same thing as in the old lathes in main spindle. It has no clearance because of the possibility of pulling one bearing closer to the second one using 2 nuts.
Just before connecting two parts (I did this that way to have a possibility to make bearing of a better stell)
The whole bearing "inside". The steel part has 3 oil grooves on each side:
This is the main "body", not finished yet
Piston with axle (not soldered yet):
I bet somebody is going to ask about plans... Well, actually I dont have them (just a few simple hand-drawn sketches). All the dimensions I took from my old "engine", which I made a few years ago as a simple one-day project. Basically, I just multiplied all dimensions by 2
Here it is, my little fella:
