Prusa MK4 — TPU 87A

MK4 direct drive is excellent for soft TPU. Go slow and results are great. 87A shore — very soft, excellent flex. Temperatures Speed Cooling Retraction Quality Tips Disable retraction entirely. Print very slowly. The softer the TPU, the slower you must go. Watch for "spaghetti" on overhangs — 87A sags more than 95A.