{"product_id":"jaws-of-life-school-project-kit","title":"Jaws of Life School Project Kit – Grade 7","description":"\u003cp\u003eA laser-cut wooden kit for the Grade 7 jaws of life school project: a working model of a hydraulic rescue tool that runs on water in two 20 ml syringes. Push the master syringe and the jaws bite shut; pull it back and they open wide. \u003cstrong\u003eNo batteries and no motor\u003c\/strong\u003e, and it builds as a cutter and as a spreader, the two tools real rescue teams use.\u003c\/p\u003e\u003ch3\u003eWhat's in the box: all the jaws of life project materials\u003c\/h3\u003e\u003cp\u003e82 laser-cut pieces and 4 bamboo dowels, packed flat:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e3 mm MDF sheets × 4 (200 × 300 mm each), with every part labelled\u003c\/li\u003e\n\u003cli\u003e20 ml syringes × 2 and a silicone tube\u003c\/li\u003e\n\u003cli\u003eBamboo dowels × 4, for the jaw pivot, the crosshead and the two jaw pins\u003c\/li\u003e\n\u003cli\u003eWood glue × 1 · sandpaper strip × 1\u003c\/li\u003e\n\u003cli\u003eA set of cutting jaws, a set of spreading jaws and four press-out tools, all cut into the sheets\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWater for the syringes is not included: tap water is what it runs on.\u003c\/p\u003e\u003ch3\u003eHow the hydraulics work\u003c\/h3\u003e\u003cp\u003eThe two syringes and the tube make one closed water circuit. The master syringe stays in your hand. The slave syringe sits inside the body of the tool, with the crosshead clipped onto its plunger. Push the master plunger and the water has nowhere to go but down the tube, so it pushes the slave plunger out: the crosshead slides forward, the four link arms swing, and the jaws close. Pull the master back and it all runs the other way.\u003c\/p\u003e\u003cp\u003eThat is what a Grade 7 report on hydraulics has to explain: water does not squash, so a push at one end comes out at the other. A real jaws of life works the same way, with a pump and hydraulic oil at very high pressure instead of a syringe of water.\u003c\/p\u003e\u003ch3\u003eCutter and spreader in one kit\u003c\/h3\u003e\u003cp\u003eThe kit builds the cutter first. To turn it into a spreader, pull out the jaw pins and the link arms, fit the four spreading jaws, and rebuild the pins, spacers and links. Now a push on the plunger forces the jaws apart, the way rescuers force open a jammed car door.\u003c\/p\u003e\u003ch3\u003eHow to make the jaws of life, step by step\u003c\/h3\u003e\u003cp\u003eEvery kit comes with a short 3D animation of the whole build, so a learner can watch it once and get it right the first time. It takes the build in eleven steps:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlue the crosshead.\u003c\/strong\u003e Stack the 12 crosshead blocks with the T-slots lined up, gluing each layer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase and first side.\u003c\/strong\u003e Lay out base plate 1 and slot side wall 2 into it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSyringe holders.\u003c\/strong\u003e Drop holder F into its slot, then holder G behind it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSyringe and crosshead.\u003c\/strong\u003e Slide nose piece E onto the slave syringe, clip the crosshead onto the plunger disc and lower the whole unit into the body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecond side.\u003c\/strong\u003e Slot side wall 3 onto the base tabs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop cover.\u003c\/strong\u003e Press cover 4 down onto the tabs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJaws on the pivot.\u003c\/strong\u003e With the body on its side, stack spacer washers, the four cutting jaws and more spacers, then push the pivot dowel through with a lock washer on each end.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLink arms.\u003c\/strong\u003e Fit the four link arms, two per side, with the crosshead dowel through their ends.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJaw pins and spacers.\u003c\/strong\u003e Fit the upper and lower jaw pins with their spacer columns, and trim the dowels flush.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaster syringe and tube.\u003c\/strong\u003e Push the tube onto both nozzles, fill the circuit with water and squeeze the air out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpreading jaws.\u003c\/strong\u003e Swap the cutting jaws for the spreading jaws whenever you want the spreader.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eBefore step 1, press every part out of its sheet and sand the tabs lightly so they slide in rather than being forced. The full walk-through, with the science for the write-up, is here: \u003ca href=\"\/blogs\/guides\/grade-7-technology-project-jaws-of-life\"\u003ehow to make a jaws of life project, step by step\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eThe whole build is also on the \u003ca href=\"\/pages\/jaws-of-life-assembly-video\"\u003ejaws of life assembly video\u003c\/a\u003e page.\u003c\/p\u003e\u003ch3\u003eTesting it\u003c\/h3\u003e\u003cp\u003ePush the master plunger and the cutting jaws close; pull it back and they open wide. If the jaws move late or feel spongy, there is air in the circuit: take the tube off, refill it with water and squeeze the bubbles out. An engraved centimetre ruler runs along the side of the body, handy for measuring how far the crosshead moves with each push.\u003c\/p\u003e\u003ch3\u003eSize when built\u003c\/h3\u003e\u003cp\u003eThe assembled cutter is 345 mm long, 140 mm wide and 62 mm high, and its jaws open to 147 mm across.\u003c\/p\u003e\u003ch3\u003eMaterials\u003c\/h3\u003e\u003cp\u003eEvery wooden part is cut by laser from 3 mm MDF, so tabs and slots meet within a fraction of a millimetre. Each part is labelled. The wood glue is for the crosshead, which is built up in glued layers, and the sandpaper strip is for easing any tab that feels tight.\u003c\/p\u003e\u003ch3\u003eTest-fitted before it's packed\u003c\/h3\u003e\u003cp\u003eWe build every kit once by hand before it is packed. If a part doesn't fit, that's on us, not on your learner.\u003c\/p\u003e\u003ch3\u003eBuilt for the CAPS Technology syllabus\u003c\/h3\u003e\u003cp\u003eDrawn in our own workshop and checked against the CAPS Technology syllabus for Grade 7, where hydraulics is part of Mechanical Systems and Control. See all \u003ca href=\"\/collections\/grade-7-technology-projects\"\u003eGrade 7 Technology projects\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhere can I buy a jaws of life school project kit?\u003c\/strong\u003e Right here. Order online and we deliver to homes, schools and shops across South Africa from our workshop in Gauteng.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it need batteries?\u003c\/strong\u003e No. It runs on tap water in the two syringes; there is no motor and nothing electrical.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat materials do I need for the jaws of life Grade 7 project?\u003c\/strong\u003e With this kit, only tap water. The 82 laser-cut MDF parts, both syringes, the tube, the dowels, the glue and the sandpaper are all in the box.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it the whole Grade 7 project?\u003c\/strong\u003e It is the model. The design brief, the drawings and the write-up are still the learner's own work, and the \u003ca href=\"\/blogs\/guides\/grade-7-technology-project-jaws-of-life\"\u003ebuild guide\u003c\/a\u003e explains the hydraulics in plain words to help with that.\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003ePacked in one flat box in Gauteng and shipped to homes, schools and shops across South Africa and Namibia. Standard delivery anywhere in South Africa is R65. Delivering to Namibia? \u003ca href=\"https:\/\/wa.me\/27782020786?text=Hi%20Slotbok%2C%20I%27d%20like%20to%20ask%20about%20delivery%20to%20my%20town.\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp us\u003c\/a\u003e with your town for the cost. Buying for a class or a shop? \u003ca href=\"https:\/\/wa.me\/27782020786?text=Hi%20Slotbok%2C%20I%27d%20like%20to%20ask%20about%20class%20sets%20and%20wholesale.\" target=\"_blank\" rel=\"noopener\"\u003eAsk about class sets and wholesale\u003c\/a\u003e.\u003c\/p\u003e","brand":"Slotbok","offers":[{"title":"Default Title","offer_id":50519518904534,"sku":null,"price":279.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0838\/8191\/8678\/files\/jaw-of-life-hydraulic-rescue-cutter-wooden-kit-02-cutting-jaws-open.jpg?v=1793617489","url":"https:\/\/www.slotbok.co.za\/products\/jaws-of-life-school-project-kit","provider":"Slotbok","version":"1.0","type":"link"}