Hello Hello from Mouse51180

**Mouse51180** · 12-08-2020, 10:50 AM

Just a quick intro,

Looking at getting into some backyard foundry hobbies. My company throws away a lot of copper power cable scraps and thought it might be a fun thing to play with at home...so off to youtube I went and build my first beer keg foundry. Currently having some issues getting my burner to work correctly and that is how I cam across SMF.

**Patriot76** · 12-08-2020, 10:44 PM

I do not have the knowledge to help in this regard, but Alloy2 and another Canadian seem to have the knowledge you seek. Good luck to your endeavors.

**alloy2** · 12-09-2020, 09:05 AM

Originally Posted by Mouse51180

Just a quick intro,

Looking at getting into some backyard foundry hobbies. My company throws away a lot of copper power cable scraps and thought it might be a fun thing to play with at home...so off to youtube I went and build my first beer keg foundry. Currently having some issues getting my burner to work correctly and that is how I cam across SMF.

Interesting hobby, for my furnace used a roofers tar kettle torch which uses liquid propane that is evaporated into a gas at the torch head. No bottle freeze up, but it sounds like your attempting to make a used oil burner, can't help out with the build or make any suggestions other than do more research plenty of those burners out there working successfully.

**alloy2** · 12-09-2020, 09:37 AM

There are plenty of company's picking up used oil filters, it's not the oil they're after it's the heavy metals from engine bearings as they wear they shed metals like cadmium which is hazardous to the environment and those in close proximity to your furnace.

The most common steel-backed alloys are SAE 780 and 781. Alloy 780 is similar to SAE 770 (or 850.0-T5) except for having 1.5% more silicon. SAE 781 contains 1 to 3% cadmium for improved bearing properties. This alloy is used in making steel-back bearings with a 0.0005-in. overlay containing approximately 90% lead and 10% tin. The layer of babbitt improves surface properties during break-in.

If you have a good supply of used restaurant oil use it instead of waste engine oil.

One might argue that the engines oil filter has captured all of the heavy metals, this is not the case.

Understanding Engine Oil Bypass Filtration

Is your engine’s oil filter performing to your expectation? Do you even know the performance of your filter? Most people don’t, and if they did, they would be appalled.

Some of the best full-flow engine filters on the market perform at a capture efficiency of 50 percent at a particle size of 10 microns and above.

To combat the high cost of my preferred fuel - propane, I purchased an induction furnace. What I now save on fuel I now spend on crucibles.