Simple V-Twin Engine

thingiverse

Fully printable V-Twin engine. Use 1.75mm filament as piston pins, securing them with a friction fit on the piston and releasing on the connection rods. I have modeled a small lip to the pins that can be melted to widen them slightly, ensuring the crank and/or rods stay in place securely. However, be careful not to melt the parts together. For example, heat the tip of a flathead screwdriver to a high temperature, making the plastic malleable but not melting it. Then use this tool to widen the lip, locking the crank and rods in place without fusing them. 0.2mm layer height and 0.4mm nozzle are recommended for optimal results, although I have managed to print with 0.25mm layer height and 0.5mm nozzle, requiring a bit more effort to insert the piston pin and some sanding on the side of the piston. Print the piston and rod twice for best results. Check out my One Cylinder Engine, which uses the same pistons and crank as this V-Twin engine: https://www.thingiverse.com/thing:3667733 Also, check out my Boxer Engine, which utilizes the same pistons and rods as this V-Twin engine: https://www.thingiverse.com/thing:3667783 Additionally, explore my Radial Engine, which employs the same pistons as this V-Twin engine: https://www.thingiverse.com/thing:3671312