How To Build A DIY Vacuum Pump

Here is how to build a DIY Vacuum Pump.
The list of used components from Amazon:
‎1. Used Fridge engine filled with oil - 1pic
2. B00FBP56N0 - 1/4 -Inch, Compression Nut - 2pic
3. B084ZDT4VY - 1/2x1/4 Brass Pipe Fitting Adapter - 2pic
4. B0CBTPYCGS - 1/4x1/4 Brass Hose Connector - 1pic
5. B0BF4KQ6P8 - Vacuum Pressure Gauge - 1pic
6. B0BRN1H471 - O Ring Kit
7. B07J2JMPVD - 1/2 Barb x 3/4" Male Hose Pipe Connector - 2pic
8. B0924GGQQT - 1/2 Brass Pipe T Adapter -1pic
9. B09XV777PC - 1/2 Inch Valve for Water - 2pic
10. B0C4V6BCPH - 1/2-3/4 Stainless Steel Pipe Clamps - 2pic
11. B09PN74Y2B - High Pressure Braided Clear Flexible PVC Tubing 3/4"

[@scottsmith7191]

Hi, that is water vapor, not air. -- You are boiling the water. PV=nRT

[@borisouedraogo7479]

Hello ! I would like to make a vacuum pump for vacuum casting in jewelry. Can the refrigerator compressor produce the necesarry depression for succion of metal?

[@IlyaYarshou]

Hi! It depends on the engine. Mine was quite enough to remove air from the resin but I would buy the more powerful engine next time or just invest into the professional one with a chamber as the final price is almost the same :)

[@borisouedraogo7479]

@@IlyaYarshouok thanks you for your answer. I will make the experience