PETG
Glycol-modified PET. Claimed to be like ABS but as easy to print as PLA
Notes:
- ~80C print bed seems to be sufficient, but can stick to as cool as 60C on clean glass.
- PETG likes to stick to the print nozzle, so "lay" the initial layer instead of mashing it.
- PETG on-glass can stick exceedingly well, and can 'bite' flakes of glass off if the glass is cooled too quickly on prints that cover a large surface area of the bed.
PETG needs higher temperature than PLA to be printed and an all metal hotend shall be preferred. Due to these higher temperature, it shall be generally printed at slower speed than PLA. Hotend with longer heat zone are preferable to print PETG.
Parts are more resistant to temperature than PLA, but less than ABS. Unfortunately, no manufacturer supplied engineering data.
Density is higher than PLA and ABS.
Stiffness is significantly lower than PLA and may be compared to ABS.
Some hints on printing PETG
Wikipedia:
