This pump is based on: https://pubs.acs.org/doi/10.1021/acs.jchemed.9b01123
The pump works like a dream. I didn't measure the vacuum it creates but it is quite powerful, it causes water to boil in room temperature.
I printed it in upright position without supports. The project has integrated breakaway support ring, no other supports are needed. 4mm metal pipe is needed for vacuum port.
My 60W diaphragm pump is too powerful. I have to supply it with 9-10V, otherwise overpressure switch starts to kick in and it oscillates on/off causing excessive wear to the switch. 36W pump recommended in the link would be a better choice.
| Aspirator_Pump_with_builtin_support.step | 120.3KB | |
| Aspirator_Pump_with_builtin_support.stl | 207.8KB |
