R-38 Pneumatic Bourke Rotary Engine 3D Printer Model
The file 'R-38 Pneumatic Bourke Rotary Engine 3D Printer Model' is (STL,stl) file type, size is 1.3MB.
The file 'R-38 Pneumatic Bourke Rotary Engine 3D Printer Model' is (STL,stl) file type, size is 1.3MB.
The R-38 is the third rotary engine developed after the R-66 and R-52. The R-38 measures (38 x 38 x 48) mm³, making it the smallest rotary engine in this series so far. It is also the fastest and better suited to the airflow of 4 mm pneumatic tubes than the larger models.
The crankshaft is all-metal, the crank radius is 3 mm so the piston stroke is 6 mm. The piston piston surface area is (16 x 12) mm² = 1.92 cm² which yields a piston force of 38 N at 0.2 MPa (2 bar) pressure. Combined, this gives a theoretical torque of 110 Nmm (at 0.2 MPa).
Filament sponsored by Fillamentum. All PLA, in following colors: Everybody's Magenta (rotor), Pearl Night Blue (housing), Gold Happens (bearing cage).
| BearingRoller_3x5.STL | 60.6KB | |
| Cage.STL | 150.7KB | |
| Housing_Front.STL | 107.7KB | |
| Housing_Middle.STL | 201.7KB | |
| Housing_Rear_4mmLockSupport.STL | 330.4KB | |
| Housing_Rear_M5.STL | 1.5MB | |
| Piston.STL | 47.7KB | |
| Rotor_Front.STL | 247.8KB | |
| Rotor_Middle.STL | 206.7KB | |
| Rotor_Rear.STL | 495.4KB | |
| SealCutter_16.2x12.2.stl | 552.8KB | |
| SolderMouldBottom.STL | 253.9KB | |
| SolderMouldTop.STL | 254.2KB | |
| WireDrillBlock.STL | 439.4KB | |
| WireDrillCap.STL | 31.9KB |
