{"product_id":"mine-shaft-headgear-school-project-kit","title":"Mine Shaft Headgear School Project Kit with Working Winder","description":"\u003cp\u003eMine headgear is the structure standing over the shaft on every gold mine on the Reef, and this kit builds one that works. A braced tower on a base board, a winding drum with a crank at the bottom, string running up over the top of the tower, and a cage that rides up and down the middle of it.\u003c\/p\u003e\n\u003cp\u003eTurn the handle and the cage comes up. That is the whole point, and it is why this build tends to mark better than a static model.\u003c\/p\u003e\n\u003ch3\u003eWhat your learner works with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eA braced frame tower with X bracing on every face\u003c\/li\u003e\n\u003cli\u003eA winding drum and crank, so the model covers a mechanism as well as a structure\u003c\/li\u003e\n\u003cli\u003eString running over the head of the tower to lift the cage\u003c\/li\u003e\n\u003cli\u003eA cage that has to run free in the shaft without catching on the bracing\u003c\/li\u003e\n\u003cli\u003eReal friction to solve, because a drum that binds will not lift anything\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt covers Structures and Mechanical Systems and Control in CAPS Technology, Grades 7 to 9, and it is one of the most commonly set PAT briefs in the country. If your learner has been given a mining or headgear topic, this is the kit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e tools, glue and paint are not included.\u003c\/p\u003e","brand":"SmartLabs","offers":[{"title":"Default Title","offer_id":48679231062169,"sku":"6009703026298","price":132.0,"currency_code":"ZAR","in_stock":false}],"url":"https:\/\/smartlabs.co.za\/products\/mine-shaft-headgear-school-project-kit","provider":"SmartLabs","version":"1.0","type":"link"}