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Table of Contents
PEI - Polyetherimide
Sometimes known as “ULTEM”, PEI is most commonly found in 3D printing as the de-facto bed material of choice. For those with machines strong enough to meet the printing requirements, PEI is also a viable filament to print. This amorphous polymer needs no post-processing and provides ready-to-go parts right off of the print sheet.
Advantages
- High strength
- Well-known color and name (cool-factor)
- No post-processing required (amorphous)
Disadvantages
- Cost, availability
- High temperature requirements
Variants
No experience has been gathered on additives for this filament.
Baseline Printing Recommendations
Lower temperatures can be made to work but will pit you in a battle against incredibly strong warping from the plastic, both with overall part design as well as from the part warping from the bed.
These numbers are provided as a baseline, and need adjustment and calibration for your specific printer/filament/color combination.
| Variant | Hotend Temperature | Heatbed Temperature | Chamber Temperature | Optimistic Usable Temperature |
|---|---|---|---|---|
| PEI | 395C | ? | ? | 200C |
Other notes
None.