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microwave smelter

Step 6Timing

timing

The wattage of your microwave will dictate the length of time your smelter will need to be timed for. It's smart to start with a short time duration to ensure your hearth and insulation are assembled correctly, then work your way up from there. The silicon-carbide heating slab will stay warm for a long time, so minimal loss occurs if you open the microwave to check on your smelter.

Here's the data from my 850W microwave:

50/50 lead/tin
- 5 minutes - mostly melted
- 10 minutes - completely molten

Silver
- 15 minutes - completely molten

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mikeasaurus (michaelsaurus.com)

I'm the Play Editor here at Instructables! I like mixing old ideas with new and reusing things not for their intended purpose; the results are sometimes messy but always fun. I also write the thrift-...