Micro waste oil forge

[Turboconqueringmegaeagle]

I started out with a fairly simple idea, i wanted a tiny forge that would be at operating temperature quickly and would run on a free fuel source, having been told it was impossible to make waste oil burners small i obviously had to prove it was possible, results were mixed, yes it is possible to make small waste oil burners, but i was not able to make one reliable and practical, I had many problems including spotting on my work, ie drops of oil would hit the work and create cool spots, warm up time started off at 20 minutes but i managed to get it down to about five, I tried vaporizing but as anticipated this lead to build ups of contaminants and subsequent blockages, eventually I settled on an adjustable pre heat that could be cleaned out simply by removing a bolt and passing a drill through it.
Conclusion is that this works fine on a known substance but the second it has heavy or contaminated fuel it needs adjustment and time to settle down, if anyone builds or sees an oil burner working nicely of similar size, please let me know!