From 1ac3b466dadc411998e316dc46b832d91a91656e Mon Sep 17 00:00:00 2001 From: timschneider Date: Wed, 5 Aug 2026 10:16:51 +0200 Subject: [PATCH] Meltingplot PLA: raise slow_down_layer_time by calibration factor 1.5 Print feedback on CHX 350 with a 0.8 nozzle at 0.44 mm layer height showed curling at the retraction points with the derived value of 25 s. There is no cooling headroom left to trade: fdm_filament_pla pins fan_min_speed = fan_max_speed = 100, and additional_cooling_fan_speed is inert because no Meltingplot machine enables auxiliary_fan. Minimum layer time is the only remaining lever; 35 s prints cleanly at that geometry. The cross-section rule only fixes the ratios between nozzle sizes, so this is a calibration of the PLA anchor itself: both PLA ladders are scaled by 1.5 (Extrudr 9/20/38/56/83 s, Meltingplot PLA 8/17/30/45/66 s for 0.4/0.6/0.8/1.0/1.2). The Extrudr base fan_cooling_layer_time goes 60 -> 100 so the 1.2-nozzle value stays below it. Other materials are left unchanged - only the PLA anchor has a real counter-example so far. --- .../filament/Extrudr PLA NX2 Matt @0.4 nozzle.json | 2 +- .../filament/Extrudr PLA NX2 Matt @0.6 nozzle.json | 2 +- .../filament/Extrudr PLA NX2 Matt @0.8 nozzle.json | 2 +- .../filament/Extrudr PLA NX2 Matt @1.0 nozzle.json | 2 +- .../profiles/Meltingplot/filament/Extrudr PLA NX2 Matt.json | 4 ++-- .../Meltingplot/filament/Meltingplot PLA @0.4 nozzle.json | 2 +- .../Meltingplot/filament/Meltingplot PLA @0.6 nozzle.json | 2 +- .../Meltingplot/filament/Meltingplot PLA @0.8 nozzle.json | 2 +- .../Meltingplot/filament/Meltingplot PLA @1.0 nozzle.json | 2 +- resources/profiles/Meltingplot/filament/Meltingplot PLA.json | 2 +- 10 files changed, 11 insertions(+), 11 deletions(-) diff --git a/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @0.4 nozzle.json b/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @0.4 nozzle.json index b295f4f392..1f759767fa 100644 --- a/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @0.4 nozzle.json +++ b/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @0.4 nozzle.json @@ -9,7 +9,7 @@ "10" ], "slow_down_layer_time": [ - "6" + "9" ], "compatible_printers": [ "Meltingplot MBL 133 0.4 nozzle", diff --git a/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @0.6 nozzle.json b/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @0.6 nozzle.json index 31a6d9c736..c7984aa06d 100644 --- a/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @0.6 nozzle.json +++ b/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @0.6 nozzle.json @@ -9,7 +9,7 @@ "15" ], "slow_down_layer_time": [ - "13" + "20" ], "compatible_printers": [ "Meltingplot MBL 133 0.6 nozzle", diff --git a/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @0.8 nozzle.json b/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @0.8 nozzle.json index e4eae06dc1..a28a1feca0 100644 --- a/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @0.8 nozzle.json +++ b/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @0.8 nozzle.json @@ -9,7 +9,7 @@ "20" ], "slow_down_layer_time": [ - "25" + "38" ], "compatible_printers": [ "Meltingplot MBL 133 0.8 nozzle", diff --git a/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @1.0 nozzle.json b/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @1.0 nozzle.json index 12128a9e8d..545acdf113 100644 --- a/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @1.0 nozzle.json +++ b/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt @1.0 nozzle.json @@ -9,7 +9,7 @@ "25" ], "slow_down_layer_time": [ - "37" + "56" ], "compatible_printers": [ "Meltingplot MBL 133 1.0 nozzle", diff --git a/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt.json b/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt.json index db71347470..87072cd753 100644 --- a/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt.json +++ b/resources/profiles/Meltingplot/filament/Extrudr PLA NX2 Matt.json @@ -37,10 +37,10 @@ "25%" ], "fan_cooling_layer_time": [ - "60" + "100" ], "slow_down_layer_time": [ - "55" + "83" ], "cool_plate_temp": [ "60" diff --git a/resources/profiles/Meltingplot/filament/Meltingplot PLA @0.4 nozzle.json b/resources/profiles/Meltingplot/filament/Meltingplot PLA @0.4 nozzle.json index 430fdbe03a..4ec8bc1fb5 100644 --- a/resources/profiles/Meltingplot/filament/Meltingplot PLA @0.4 nozzle.json +++ b/resources/profiles/Meltingplot/filament/Meltingplot PLA @0.4 nozzle.json @@ -9,7 +9,7 @@ "11" ], "slow_down_layer_time": [ - "5" + "8" ], "compatible_printers": [ "Meltingplot MBL 133 0.4 nozzle", diff --git a/resources/profiles/Meltingplot/filament/Meltingplot PLA @0.6 nozzle.json b/resources/profiles/Meltingplot/filament/Meltingplot PLA @0.6 nozzle.json index 3157fdfbcc..054bc03ab6 100644 --- a/resources/profiles/Meltingplot/filament/Meltingplot PLA @0.6 nozzle.json +++ b/resources/profiles/Meltingplot/filament/Meltingplot PLA @0.6 nozzle.json @@ -9,7 +9,7 @@ "16" ], "slow_down_layer_time": [ - "11" + "17" ], "compatible_printers": [ "Meltingplot MBL 133 0.6 nozzle", diff --git a/resources/profiles/Meltingplot/filament/Meltingplot PLA @0.8 nozzle.json b/resources/profiles/Meltingplot/filament/Meltingplot PLA @0.8 nozzle.json index 5777d21caa..7fa45fc182 100644 --- a/resources/profiles/Meltingplot/filament/Meltingplot PLA @0.8 nozzle.json +++ b/resources/profiles/Meltingplot/filament/Meltingplot PLA @0.8 nozzle.json @@ -9,7 +9,7 @@ "22" ], "slow_down_layer_time": [ - "20" + "30" ], "compatible_printers": [ "Meltingplot MBL 133 0.8 nozzle", diff --git a/resources/profiles/Meltingplot/filament/Meltingplot PLA @1.0 nozzle.json b/resources/profiles/Meltingplot/filament/Meltingplot PLA @1.0 nozzle.json index a2fe9d56d7..bbb19233db 100644 --- a/resources/profiles/Meltingplot/filament/Meltingplot PLA @1.0 nozzle.json +++ b/resources/profiles/Meltingplot/filament/Meltingplot PLA @1.0 nozzle.json @@ -9,7 +9,7 @@ "27" ], "slow_down_layer_time": [ - "30" + "45" ], "compatible_printers": [ "Meltingplot MBL 133 1.0 nozzle", diff --git a/resources/profiles/Meltingplot/filament/Meltingplot PLA.json b/resources/profiles/Meltingplot/filament/Meltingplot PLA.json index b379ce47ef..11d6e77973 100644 --- a/resources/profiles/Meltingplot/filament/Meltingplot PLA.json +++ b/resources/profiles/Meltingplot/filament/Meltingplot PLA.json @@ -22,7 +22,7 @@ "#F8F8F8" ], "slow_down_layer_time": [ - "44" + "66" ], "slow_down_min_speed": [ "15"