TPUフィラメントのキャップを印刷する
プリンターのロード画面にTPUがない
Flexible materialの略？
https://gyazo.com/bd510b77556c56f62b8a427f9d460d6a
Some very soft flex materials can bond to the bed too much and require the use of glue stick on the bed as a separator to prevent PEI damage. A good alternative is the Textured Spring-steel sheet.
Important rules for successful printing with flexible filaments
Make sure the nozzle is unobstructed. If you’re not sure, do a cold pull to clean it completely. 別のやり方は？
https://youtu.be/DEH1LBoS00Q
短い間、前のマテリアル向けに高い温度でpreheatして入れてもOK
排出が終わったら適正温度に戻す
Idlerを緩める
Loosen the idler so the gears push the filament through only very gently. If they press too hard, the filament might get entangled in the gears.
高さ1.4mmに緩めた
初回ビルドしたときに全然緩まってなかったので、今まではきつすぎた基素.icon
標準だとロードしていない時に0.5-1mmぐらいでている
The idler screw should be about flush to protruding 0.5 -1 mm with the plastic part when the filament is not loaded.
In my experience it's better to have the screw flush with the nut or protruding max 1 mm.
TPUならもっと緩める
If you print on a smooth or satin sheet, apply a separation layer on it (glue stick or Kapton tape should work). The powder-coated TXT sheet does not need any separation layer - the print will stick just fine and can be easily removed without damaging the surface.
satinを使ってないので関係なし
Print slowly. The slower, the better. A typical speed for flexible filaments is usually 20 mm/s, the maximal recommended speed is somewhere between 30 and 40 mm/s. With higher speeds, you risk clogging the nozzle or tangling filament into the gears. For Original Prusa printers, we recommend using the “Semiflex or Flexfill 98A” or “Filatech FilaFlex40” profiles that have proper speed settings.
Increase the nozzle temperature by 5 °C, this will lower filament resistance. Keep print cooling turned off.
print coolingってファンのこと？offにする方法がわからない
Keep the filament dry. Flexible filaments tend to absorb moisture and can be hard to print when wet.
1. Do not use Auto Filament Load or Unload with TPU. (It would actually be nice if Prusa added an option to slow down the auto load/unload speed)
ロードできたので自分には当てはまらなそう基素.icon
2. Apply a robust layer of PVA to the PEI sheet (if you're using PEI). I also recommend washing the sheet with dish soap first.
PVAののりをつけろという意味
3. Loosen your bondech idler until is seems too loose (the top of my screw head was probably around 1-2 mm above the extruder housing)
Prusa公式ドキュメントにも書いてある
4. Use a slow print speed (30mm/s max).
I went back to all standard settings in Slicer, but changed all my print speeds to be at most 30mm/s. I used the "Generic FLEX" filament setting. I also increased infill to 60% (not sure that was necessary or not). One video said to set infill to 80%, but Slicer kept crashing when trying to slice with that setting, so I changed it to 60% and it sliced fine. は失敗するらしい
これも公式ドキュメントに記載あり
5. Do not use retraction (this is already part of the Generic FLEX settings in Slicer, but in case you're using a different filament).
公式ドキュメントにはPrusaSlicer以外のときはと書いてある
If you use a different program than PrusaSlicer, try to adjust retractions a little bit PrusaSlicerの設定にSainSmart TPUがあった
https://gyazo.com/1d9b8c5ac6781c29b0555d423f5afcf2
SainSmartのrecommended templetureより高いけどいいのかな
他の人の設定
first_layer_bed_temperature = 70
first_layer_temperature = 225
temperature = 220
230/60c with the fan at 50% printing at 25mm/s printed a cellphone case (thin walls and bridging) great. stringing was an issue I need to work on retraction, but otherwise it printed perfect.
プリンターのリトラクションの設定は変わらない
https://gyazo.com/1b6276075f6b894a11b4c5f4f097a7e3
速度調整はAdvancedにしないと出ない
https://gyazo.com/24b78bfccceed7d9f766f3424e1b0996
プリント設定で速度はフィラメントによって変わらない
https://gyazo.com/d0bef62e2789dfd83332cd238008443b
フィラメントによって押し出し体積が調整される
https://gyazo.com/77480fd3c9199b378111be91c7bedb9e
1回目
デフォルト。失敗
https://gyazo.com/7a5d7020c23a4374df27738c8f6be762
2回目
https://gyazo.com/8a02de1303380515f38a0c3b6ab38b3f
https://gyazo.com/42603a55533259bb7502fc9ce926d9e6
3回目
https://gyazo.com/2e2b3bc803a3e8130920c71100fe9372
全然うまくいかない
他の人の試行錯誤
TPUをプリントするときは開き直って糸引きをあとからなんとかすることにしてリトラクション無効でプリントしてしまうのが賢いという結論に達した
https://gyazo.com/271e64af2ac3c640a44b3d274f7ab9b2
https://gyazo.com/a0a039b6c92c8f2b68d8e6679783eb6f
結局1回目の設定のまま、糸引き部分をニッパーで切って解決とした
スライスしてみるとSainSmart TPUのプリント時間はGeneric FLEXより圧倒的に早いようになっている
https://gyazo.com/dc2e1923cea903f2a4260b405da61780
https://gyazo.com/4b595461a4fdfc88f519df07cd4df987
https://gyazo.com/e535af7b677a8bef1ecefdaff3f438f1
この差はどこからくるのか
フィラメントの密度などはそんなに変わらないが
https://gyazo.com/a2f0a83c1880c68b5d7c5ed74c04a72e
https://gyazo.com/1d9b8c5ac6781c29b0555d423f5afcf2
https://gyazo.com/e18a6be4ce573d04da7177ae49968e67
https://gyazo.com/d16c33f62aad48f9b33a38e1b8012526
PETGは$ 8\, \rm{mm^3/s}
プリンタ設定をいじっていたが、フィラメント設定のここで決まるっぽい
個々に詳しいく書いてある
The MVS setting essentially creates a manager for the maximum amount of filament that the slicer will attempt to push through your 3D printer’s hotend.
Max volumetric speed = Layer Height × Extrusion Width × Speed
Independent MVS values can be set under both Print settings and Filament settings. In your print profile, you'll typically have an all-around default value based on your hotend hardware. In filament profiles, you can adjust MVS as needed to account for filament characteristics, e.g. decrease it for FLEX filaments (so you won't have to create a new print profile for flexible filaments, just a filament profile).
https://gyazo.com/6d6383b3ddf4da489454c90ef2efb579
小さいものだと最大速度そもそもいかないらしい
Extrusin width
https://gyazo.com/687b6c8a96afdf71d2078ed4bd66a946