| title: Material sintering-window comparison (PA12 / PA11 / TPU) | |
| summary: Relative processing-window widths and handling differences across our powder family. | |
| > **DRAFT — PENDING HUMAN REVIEW.** Not served to agents until promoted into | |
| > `source/` (top level). Numbers below are extracted from the cited papers by | |
| > the 2026-07-16 deep-research pass and domain-checked, but adversarial | |
| > verification is still in progress. Review before promotion. | |
| # Material Windows Comparison | |
| | Material | Sintering window | Notes for agents | | |
| |---|---|---| | |
| | PA12 / PA12 GF | ~20–25 °C (PA12/CF measured 21 °C) | The forgiving baseline; GF adds stiffness, narrows practical window slightly | | |
| | PA11 | ~11 °C — HALF of PA12's | Far less bed-temp margin; nitrogen strongly recommended (air degrades faster per Formlabs); expect tighter tolerance to drift | | |
| | TPU 90A | Wide, elastomer behavior | Different failure modes (elastic recovery vs curl); Formlabs runs it at ~50 % refresh | | |
| | PP | ~16 °C measured | Reference only (not in our powder set) | | |
| Sources: Materials 14:1169 survey; SSR-optimization study; Formlabs TDS/support. | |