TwoDudesMakingStuff

The dryer lint comment is spot on. I run a scout pack where I teach fire starting with the sparking magnesium fire starters. A kid brought lint that was from a load of synthetic blends (probably) and it just wouldn't light. The pour kid (7 or 8) was frustrated to tears because his sparks were great but he just couldn't get it lit because of the lint variety.

That's great to know about the crayons! We have little kids so crayon nubs are never in short supply. I had planned to do the next batch with them just as an experiment but I'll pass if they have too high of a melting point.

I will definitely make an edit. It smelled bad from time to time, more like burning bone than plastic, but my garage it well ventalated so I barely noticed it. I can use spray paint in my garage without much worry thanks to a great cross breeze.

Now that's thinking! An angle grinder would be perfect! How was the heat buildup? I noticed it would get bad with just a file. I think that led to some of the problems.

Thanks! This was definitely a learning process.