I accidentally bought these PCL filaments to use with an ABS and PLA compatible pen. It's melting point is between 150 and 212 degrees Fahrenheit, which is much lower than the required temperature for AND and PLA. It makes it safer too use die to lower temperature. Less toxic. However, it think is a little overpriced for the amount included.
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https://www.amazon.com/Printing-Filament-CFTech-Material-Supplies/dp/B06XZMY9MD