{"title":"Water Rocketry","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eGlobally-compatible, high-performance, modular, and customizable launcher for water rockets. A Marimo Labs invention and store exclusive.\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"water-rocket-launcher-kit","title":"Full Water Rocket Launcher Kit","description":"\u003ch2\u003eA perfect project for STEM learning or summer fun!\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eEverything you need to launch water rockets!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWater rockets are made from soda or seltzer bottles and are powered by compressed air. The Marimo Labs Water Rocket Launcher is small enough to toss in a backpack yet powerful enough to launch a rocket a hundred feet into the air.\u003c\/p\u003e\n\u003cp\u003eAll you'll need to get your rocket off the ground is a plastic soda or seltzer bottle, water, and a bike pump that connects to standard Schrader valves found on cars and mountain bike tires.\u003c\/p\u003e\n\u003ch2\u003eMake your own for free!\u003c\/h2\u003e\n\u003cp\u003eWait, what now? Yes, we've made the design freely available under a Creative Commons license to advance science and engineering education. \u003c\/p\u003e\n\u003cp\u003eYou can make the printed parts on your 3D printer. Pick up the \u003ca href=\"\/products\/rocket-launcher-core-subkit-with-non-printed-parts\" title=\"Core subkit with non-printed parts\" rel=\"noopener\" target=\"_blank\"\u003eCore Subkit with Non-Printed Parts\u003c\/a\u003e at the Marimo Labs Store or purchase parts elsewhere. Sample links are on the \u003ca href=\"https:\/\/www.printables.com\/model\/86434-water-rocket-launcher\" target=\"_blank\"\u003ePrintables\u003c\/a\u003e project page.\u003c\/p\u003e\n\u003ch2\u003eSave time and support the project\u003c\/h2\u003e\n\u003cp\u003eIf you don't have ready access to 3D printers, or are just looking for a ready-to-go solution, you can purchase a kit here. Proceeds go toward improving the design for everyone, as the Marimo Labs Water Rocket Launcher design will remain free forever.\u003c\/p\u003e\n\u003cp\u003eThis kit includes all required printed and non-printed parts for the standard design. Printed components are made from American-made PETG polymer for durability and heat resistance. \u003c\/p\u003e\n\u003ch2\u003eKit Contents (comes unassembled)\u003c\/h2\u003e\n\u003cp\u003ePlease see the products image below for included parts. Pictured with 0.5L bottle for scale (not included); compatible with a wide range of soda\/seltzer bottles. Colors may vary.\u003c\/p\u003e\n\u003ch3\u003ePrinted Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Base v1.22\u003c\/li\u003e\n\u003cli\u003e1x Collar v1.42\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3x Leg v1.06\u003c\/li\u003e\n\u003cli\u003e3x Peg v1.41-L\u003c\/li\u003e\n\u003cli\u003e1x Carrier v1.31\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eClamp and Pin Subkit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e7x Clamp v1.44\u003c\/li\u003e\n\u003cli\u003e2x Launch Pin v1.2 (printed on smooth plate)\u003c\/li\u003e\n\u003cli\u003eParaffin beads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCore Subkit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eTR414 tire valve stem\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eO-ring 22mm OD x 15mm ID x 3.5mm CS\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e210mm hose extension\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e6\" reusable straw (color may vary)\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eCore Type B v1.2 (printed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSchrader valve tool (color may vary)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRubber Band and Cord Subkit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e5x blue EPDM elastic bands #33 (3 1\/2\" x 1\/8\")\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003cli\u003e3-meter (10-ft) 1.18mm 100lb tensile strength orange paracord\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Clamp and Pin Subkit includes a spoonful of high-melt-temperature food-grade paraffin beads that can help lubricate friction points of the launcher. You can put the beads in the Clamp+Pin bag and shake; you can also put beads between the Collar and Clamps of your assembled launcher and move the Collar up and down to distribute. \u003c\/p\u003e\n\u003cp\u003eIncludes seven Clamps and two Pins, giving you a spare of each. One of the Clamps is blue, which may be placed on the side of the Launcher where the Pin will be inserted, as an additional visual reminder.\u003c\/p\u003e\n\u003cp\u003ePrinted parts are made in the USA from US filament. Rubber bands and cord are made in the USA. Rubber plumbing parts and straw are made in China.\u003c\/p\u003e","brand":"Marimo Laboratories","offers":[{"title":"Default Title","offer_id":46447753592984,"sku":"L-LCHR-01","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/5316\/2392\/files\/L-KIT-LCHR-01Library_1.0x.png?v=1748973829"},{"product_id":"rocket-launcher-core-subkit-with-non-printed-parts","title":"Core Subkit with Non-Printed Parts","description":"\u003cp\u003eThe Core is the \"cork\" that goes into the bottle, connects to the air source, and interfaces with the Launcher. This Core Kit contains all the parts to build one Core B, the standard Core. \u003c\/p\u003e\n\u003cp\u003eEach launcher needs at least one Core. Each complete Launcher Kit already includes one of these, so no need to purchase separately. However, consider that extra Cores are great for parties, classes, and camps so you can have the next water rocket on deck.\u003c\/p\u003e\n\u003cp\u003eRemovable Cores are unique to the Marimo Labs Launcher design. You can fill your rocket with water and cork it. No losing water as you flip your rocket over to place it on the launcher. Also, no special connector (e.g. Gardena) is needed for your bottle, as this is a full-bore Core design.\u003c\/p\u003e\n\u003ch2\u003ePrinting the launcher at home?\u003c\/h2\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eIf you are looking to buy just the non-printed plumbing parts so you can print the rest of it at home, this is the subkit for you. \u003cmeta charset=\"utf-8\"\u003eThe only other non-printed parts required are rubber bands and cord. You can use what you have at home or buy the Bands and Cord Subkit.\u003c\/p\u003e\n\u003cp\u003eComes unassembled.\u003c\/p\u003e\n\u003ch3\u003eParts Included\u003c\/h3\u003e\n\u003cp\u003e• TR414 tire valve stem\u003cbr\u003e• O-ring 22mm OD x 15mm ID x 3.5mm CS\u003cbr\u003e• 210mm hose extension\u003cbr\u003e• 6\" reusable straw (color may vary)\u003cbr\u003e• Core B (printed part)\u003cbr\u003e• Tire valve stem central valve removal tool (printed part) (color may vary)\u003c\/p\u003e\n\u003cp\u003ePrinted parts made in USA from US filament. Rubber parts and straw are made in China.\u003c\/p\u003e","brand":"Marimo Laboratories","offers":[{"title":"Default Title","offer_id":46496580993176,"sku":"L-SK-CRB","price":8.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/5316\/2392\/files\/L-KIT-CORB-01Parts.png?v=1745596931"},{"product_id":"rubber-band-and-launch-cord-subkit","title":"Spare Rubber Band and Launch Cord Subkit","description":"\u003cp\u003eRubber bands and braided paracord for your water rocket launcher.\u003c\/p\u003e\n\u003cp\u003eFive non-latex blue EPDM #33 elastic bands and 3 meters (10 feet) of 1.18mm 100lb tensile strength orange paracord, to be precise. Both made in the USA.\u003c\/p\u003e\n\u003cp\u003eAlready included in the full launcher kit, so no need to purchase separately.\u003c\/p\u003e\n\u003cp\u003eAre these a must? Not at all. But they're pretty great.\u003c\/p\u003e","brand":"Marimo Laboratories","offers":[{"title":"Default Title","offer_id":46497998176408,"sku":"L-SK-CPN","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/5316\/2392\/files\/L-BDCDParts_0.5x_d7da7303-b495-4467-a6e9-65d424b5b999.png?v=1745623356"},{"product_id":"red-white-blue-water-rocket-launcher-kit","title":"Red\/White\/Blue Water Rocket Launcher Kit","description":"\u003ch2\u003eLimited edition water rocket launcher kit in red, white, and blue. Perfect for summer cookouts and 4th of July parties!\u003c\/h2\u003e\n\u003cp\u003eThis kit contains the same parts as the \u003ca href=\"https:\/\/store.marimolabs.com\/products\/water-rocket-launcher-kit\"\u003estandard launcher kit\u003c\/a\u003e, except for different color parts, as shown. Please note that straw color may vary.\u003c\/p\u003e\n\u003cp\u003ePlease see the standard launcher kit description for part listings.\u003c\/p\u003e","brand":"Marimo Laboratories","offers":[{"title":"Default Title","offer_id":46631421116568,"sku":"L-LCHR-02","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/5316\/2392\/files\/L-KIT-LCHR-02.png?v=1748975132"}],"url":"https:\/\/marimolabs.com\/collections\/water-rocketry.oembed","provider":"Marimo Labs","version":"1.0","type":"link"}