I created a very light remix (only one cylinder), in order to minimize the printing time : Dimensions: 31x27xH49 mm

It is both a very original decorative object, a model explaining how a classic 4-stroke engine works, but it's also a ruthless test for your printer because the motor block is printed in one go !

After multiple attempts to get a good print, I finally used a raft because all the other printing options failed (my printer has no hot bed)...

Once you have finished printing, you will have to dazzle the creation with a scalpel :

• at the bottom of the piston, a small strip to be deleted
• at the bottom of the connecting rod, same
• all operating axes
• piston contacts with the cylinder Finally tap on the top of the piston so that it can move

But in the end, what a pleasure to see this engine running !

I added a crank for fun but this accessory is not essential

You can use a screwdriver for high speed rotation!

You can enlarge the 3 objects in your slicer (in the same proportions of course!)