Hi, some years ago i've got the same problem....

see this

Yeah, that's cool. I like what I did more only because I had more control over how much heat and where. But really what I did isn't exactly awesome as it was still pretty uncontrolled and stands a good chance at failing again soon. That being said, if the thing's already garbage, then if you try anything at all, that's generally better than just throwing it out. Also, doing this cost me close to nothing in materials.

Here's a video that makes me feel like an idiot, though this guy seems kind of unreasonable and ridiculous at times too. But back to, hey, I got these machines for $20 and it's all for fun anyway.