Elegoo Neptune 4 — TPU 82A

Neptune 4 direct drive handles soft TPU. Use Klipper pressure advance = 0. 82A shore — extremely soft, gel-like. Temperatures Speed Cooling Retraction Quality Notes Tips Slowest of all TPU grades. Disable all retraction. Even 20mm/s may cause jams with 82A — start at 15mm/s. Layer height 0.3mm reduces layer count and jam risk.