{"product_id":"moc-4704-rc-crawler-material-handler-building-blocks","title":"MOC-4704 RC Crawler Material Handler Building Blocks","description":"\u003cp dir=\"auto\" class=\"PDq2pG_selectionAnchorContainer\"\u003eTake control of a compact tracked material handler with the \u003cstrong\u003eMOC-4704 RC Crawler Material Handler Building Blocks\u003c\/strong\u003e. Designed and authorized by \u003cstrong\u003eNico71\u003c\/strong\u003e, this \u003cstrong\u003e874-piece\u003c\/strong\u003e model combines remote-control driving with a fully functional boom, extendable arm, automatically tilting grabber, and articulated tracked suspension.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eMeasuring approximately \u003cstrong\u003e33 × 18 × 18 cm\u003c\/strong\u003e, the finished machine brings together multiple mechanical systems in one engineering-focused build, allowing you to drive, lift, extend, and grab through independently powered functions.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eIndependent Dual-Track Drive\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eEach track is powered by its own \u003cstrong\u003eXL motor\u003c\/strong\u003e, allowing the crawler to steer through differential track control and maneuver easily in tight spaces.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eDouble Bogie Track Suspension\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eBoth tracks feature \u003cstrong\u003edouble bogie suspension\u003c\/strong\u003e, helping the crawler adapt to uneven surfaces while adding realistic movement to the tracked undercarriage.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eMotorized Boom Raising\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAn M motor drives \u003cstrong\u003etwo linear actuators\u003c\/strong\u003e to raise and lower the main boom, recreating the lifting movement of a real material-handling machine.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eExtendable Mechanical Boom\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eA separate motor drives the telescopic boom through a \u003cstrong\u003erack-and-worm mechanism\u003c\/strong\u003e, allowing the arm to extend and retract during operation.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eAutomatic Tilting Grabber\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eA sliding-gear mechanism automatically adjusts the angle of the claw as the boom moves, helping the grabber maintain a practical working orientation throughout its range of motion.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eMotorized Claw with Clutch Protection\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe grabber opens and closes through its own M motor, while a rubber-band clutch helps protect the mechanism when the claw reaches its movement limit or encounters resistance.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eFrom the Designer\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eNico71 developed \u003cstrong\u003eMOC-4704\u003c\/strong\u003e as a motorized crawler grabber inspired by the mechanical concept of the classic 8062 material handler. The design focuses on combining independent tracked drive, articulated suspension, boom lifting and extension, and an automatically tilting claw within a compact machine.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eParticular attention was given to the linkage and gearing of the grabber so that several mechanical functions can operate together while remaining clearly visible to the builder.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eA Functional Engineering Display\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eWith \u003cstrong\u003e874 pieces\u003c\/strong\u003e and multiple remotely controlled mechanical functions, this crawler material handler offers an engaging building and operating experience for construction-equipment fans, tracked vehicle enthusiasts, and builders interested in gears, actuators, and mechanical transmission systems.\u003c\/p\u003e","brand":"LesDiy","offers":[{"title":"Default Title","offer_id":49372176482478,"sku":"3752015","price":163.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0063\/2232\/3545\/files\/eba230be-bf1e-46c8-9b4e-b636c17809aa_6d5b2307-ed36-4ac7-ae91-aff9d3561e97.jpg?v=1789625814","url":"https:\/\/www.lesdiy.com\/en-ca\/products\/moc-4704-rc-crawler-material-handler-building-blocks","provider":"LesDiy","version":"1.0","type":"link"}