I like the one from Polymaker, though that is mostly because it's modular which I needed for a hard to reach space. It claims to have a thermal fuse. https://po

I like the one from Polymaker, though that is mostly because it's modular which I needed for a hard to reach space. It claims to have a thermal fuse. https://polymaker.com/introducing-polydryer https://polymaker.com/introducing-polydryer The plastic feels solid, but I did not take it apart to check if it has decent crimping or electronics. If you trust your 3d printer, you could do what the article suggested and use your heatbed.