{"product_id":"mini-spool-for-filament-samples-up-to-20-m","title":"Mini Spool for Filament Samples (up to 20 m)","description":"\u003cp\u003eA compact spool that holds up to \u003cstrong\u003e20 m of 1.75 mm filament\u003c\/strong\u003e. \u003cstrong\u003ePerfect for 10–20 m samples \u003c\/strong\u003e— no more tangled coils once the bag is opened, and the filament feeds smoothly into a 3D pen or printer.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eWhy I designed it\u003c\/strong\u003e\u003c\/h4\u003e\u003cp\u003eWhen my daughter began \u003cstrong\u003ecreating 3D objects with a 3D pen\u003c\/strong\u003e, dozens of short samples soon turned into a spaghetti mess. Mini‑spools I found were poorly suited to PLA: most clamp the loose end in a straight hole, so the stiff PLA kept snapping. \u003cstrong\u003eIn my version I solved this by replacing the straight hole with a shallow, curved channel that follows the spool’s circumference, letting the filament tail lie naturally without kinking or breaking. \u003c\/strong\u003eI needed reliable retention, a size made for 10 m samples, and something that prints fast — so I modeled this spool in Fusion 360 and printed it on a Bambu Lab A1 mini.\u003c\/p\u003e\u003cp\u003eThe entire print fits on a single A1 Mini build plate.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eDesign highlights\u003c\/strong\u003e\u003c\/h4\u003e\u003cp\u003e| \u003cstrong\u003eCapacity\u003c\/strong\u003e | up to 20 m of 1.75 mm PLA\/PETG, or two 10 m samples |\u003c\/p\u003e\u003cp\u003e| \u003cstrong\u003eGlued shell\u003c\/strong\u003e | two halves align precisely and are fixed with a drop of super‑glue |\u003c\/p\u003e\u003cp\u003e| \u003cstrong\u003eGentle tail lock\u003c\/strong\u003e | four tear‑drop slots grip PLA without stressing or breaking it |\u003c\/p\u003e\u003cp\u003e| \u003cstrong\u003eLightweight\u003c\/strong\u003e | ~ 30 g in PLA |\u003c\/p\u003e\u003cp\u003e| \u003cstrong\u003eFast print\u003c\/strong\u003e | \u0026lt; 1 h on a standard profile; both halves lie flat—no supports |\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eRecommended print settings\u003c\/strong\u003e\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e PLA (fast) or PETG (stronger)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNozzle:\u003c\/strong\u003e Ø 0.4 mm (0.6 mm also fine)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLayer height:\u003c\/strong\u003e 0.20 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWalls\/perimeters:\u003c\/strong\u003e ≥ 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInfill:\u003c\/strong\u003e 15 %–20 % (Grid or Gyroid)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports:\u003c\/strong\u003e \u003cstrong\u003enone\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e typical profile (e.g., 200 mm\/s on a Bambu A1 mini)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eAssembly \u0026amp; use\u003c\/strong\u003e\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrint\u003c\/strong\u003e the two halves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlign\u003c\/strong\u003e them and run a thin bead of super‑glue around the mating rim.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePress\u003c\/strong\u003e the halves together and hold for a few seconds until the bond sets.\u003c\/li\u003e\n\u003cli\u003eAfter the glue cures, \u003cstrong\u003ewind the filament by hand\u003c\/strong\u003e, leaving a ~5 cm tail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLock\u003c\/strong\u003e the tail in one of the tear‑drop slots.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e \u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eLicense \u0026amp; feedback\u003c\/strong\u003e\u003c\/h4\u003e\u003cp\u003eReleased under \u003cstrong\u003eCC BY‑SA 4.0\u003c\/strong\u003e—feel free to remix and share as long as you credit the author and keep derivatives under the same license. I’m happy to hear your feedback and ideas for improvements!\u003c\/p\u003e\u003cp\u003eDesign by Or3Der on MakerWorld (license: BY-SA).\u003c\/p\u003e","brand":"Mymadmanlab","offers":[{"title":"Default Title","offer_id":67391347032368,"sku":null,"price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/0809\/5280\/files\/0_d382e27e-6649-435b-86f4-fa59c473de9f.png?v=1784748173","url":"https:\/\/mymadmanlab.com\/products\/mini-spool-for-filament-samples-up-to-20-m","provider":"Mymadmanlab.com","version":"1.0","type":"link"}