Here is a 3d model air cooled engine with internal moving parts, pistons, piston rods, pulleys, crank and a cooling fan.
the model and the real thing
Read more for more information and the links to the basic version engine STL file and the purchase page of a improved version with STLs for every part of the engine.
As we all know, 3D printed parts produced by our ordinary home type printers are not so strong and when used in place of actual parts, they don’t last long. I thought it would be great If it is possible to somehow strengthen the 3d printed parts and worked on the subject a bit.
Strengthening a 3d part may give us the ability to use those parts in place of actual working, load bearing parts. So instead of trying to find an original replacement part for a broken one of our gadgets, robots, vehicles, mechanical toys or in any mechanical tech project we develop, we can simply go with the 3d printed parts.
This is a 3d printable design which can house different electronic circuit boards. In its standard size it can house a 70mm x 100mm PCB.
Top and bottom halves of the boxes are identical. There is only one STL file for the box and it can be used both as the bottom or the top halve. There are many vents and holes to cool the interior electronics. There is also a simpler version without the holes & vents.
This product and project is aimed to be used in vehicles for generating turbo and various other sound effects.
This is how the system works
Read more for downloading the product case STL files for 3d printing, CCS C source codes, Proteus simulation, circuit schematic and PCB layout files and also 70 different sound effects I’ve found on the net and especially prepared for this project.
This light can be used as a warning-security light on bicycles and it generates its own electricity and has no batteries inside. Build, install and forget.