{"product_id":"stair-climbing-rover","title":"Stair Climbing Rover","description":"\u003cp\u003eMy robot from the Danish \u003ca target=\"_blank\" href=\"https:\/\/robocup.dtu.dk\/\" rel=\"nofollow noopener\"\u003eDTU RoboCup\u003c\/a\u003e competition. The rover was made specifically to solve the stair climbing obstacle. It is built on a rocker-bogie design, making the stair climbing quite easy. See the videos of the robot in the competition below.\u003c\/p\u003e\u003cp\u003eIt was inspired by the great design of this \u003ca target=\"_blank\" href=\"https:\/\/www.thingiverse.com\/thing:1318414\" rel=\"nofollow noopener\"\u003eMartian Rover\u003c\/a\u003e. It is however redrawn completely in order to make it possible to turn all wheels separately. Also, I wanted the motors to be inside the wheels, and all wires to be hidden inside the arms. The differential between the two main arms is inside the enclosure to keep the top free for future additions. The main frame has mounting holes all the way around making it easy to mount things inside the enclosure.\u003c\/p\u003e\u003cp\u003eThe design here is missing a few details, like the mount for the camera and a Raspberry Pi. I assume that if anyone want to make this, they will adopt these features for their own needs.\u003c\/p\u003e\u003cp\u003eThe robot is assembled mostly with M3 nuts and bolts. The arms are supported by a long M8 threaded rod. The top lid attaches with magnets. The fully assembled robot is about 430x330x220 mm (LxWxH).\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMotors: 25GA370 DC 6V Micro Gear Motor, 130RPM, 1:46.8\u003c\/li\u003e\n\u003cli\u003eCouplers: Chihai Motor 4 mm Rigid Flange Coupling\u003c\/li\u003e\n\u003cli\u003eServos: TGY-R5180MG. An alternative is DS041MG which should fit, but requires a different gear. See this \u003ca target=\"_blank\" href=\"https:\/\/www.printables.com\/model\/194299-stair-climbing-rover\/comments\/2139935\" rel=\"nofollow noopener\"\u003ecomment\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eTires: BS701-002T (103 mm OD, 72 mm ID, 42 mm width). Alternatively \u003ca target=\"_blank\" href=\"https:\/\/www.aliexpress.com\/item\/33042672599.html\" rel=\"nofollow noopener\"\u003ethis\u003c\/a\u003e or \u003ca target=\"_blank\" href=\"https:\/\/www.aliexpress.com\/item\/1005003695930838.html\" rel=\"nofollow noopener\"\u003ethis\u003c\/a\u003e can be used as a direct replacement. Look in the \u003ca target=\"_blank\" href=\"https:\/\/www.printables.com\/model\/194299-stair-climbing-rover\/comments\/871660\" rel=\"nofollow noopener\"\u003ecomments section\u003c\/a\u003e for more details:\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNote that the servos I used may be a bit under powered if used in rough terrain. On smooth surfaces they are sufficient.\u003c\/p\u003e\u003cp\u003eFor some accessories \u003ca target=\"_blank\" href=\"https:\/\/makerworld.com\/en\/u\/3248088832\/collections\/697550\" rel=\"nofollow noopener\"\u003esee this collection\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003ci\u003eIf you make remixes of this model and publicly shares the modifications, please consider uploading your changes in an editable format like STEP. It makes it so much easier for others to improve on your changes.\u003c\/i\u003e\u003c\/p\u003e\u003ch3\u003ePrinting\u003c\/h3\u003e\u003cp\u003eLook at the filenames to determine how many times you need to print each item. \u003cbr\u003e1x_1xm_ means print one time as-is and one time mirrored.\u003c\/p\u003e\u003cp\u003eThe largest part is the frame. If it is too large for your printer, you can most likely print it by putting it on the side, and placing it diagonally on the bed. Also, cut it in two, like I did in the assembly video. That way it can be printed without support.\u003c\/p\u003e\u003ch3\u003eOutdoor Test\u003c\/h3\u003e\u003cfigure class=\"media\"\u003e\u003coembed url=\"https:\/\/www.youtube.com\/watch?v=90HxqwZaWRA\"\u003e\u003c\/oembed\u003e\u003c\/figure\u003e\u003ch3\u003eAssembly Instructions\u003c\/h3\u003e\u003cfigure class=\"media\"\u003e\u003coembed url=\"https:\/\/www.youtube.com\/watch?v=bXdt8hng2WM\"\u003e\u003c\/oembed\u003e\u003c\/figure\u003e\u003ch3\u003eThe Rover in the Competition\u003c\/h3\u003e\u003cp\u003eFirst version going up the stairs:\u003c\/p\u003e\u003cfigure class=\"media\"\u003e\u003coembed url=\"https:\/\/www.youtube.com\/watch?v=9Od0E53R8PE\"\u003e\u003c\/oembed\u003e\u003c\/figure\u003e\u003cp\u003eSecond version. Unfortunately the wooden floor was slippery, so the robot couldn't go up the stairs. Instead, it took a trip to the seesaw:\u003c\/p\u003e\u003cfigure class=\"media\"\u003e\u003coembed url=\"https:\/\/www.youtube.com\/watch?v=GkBlQkr3NZU\"\u003e\u003c\/oembed\u003e\u003c\/figure\u003e\u003cp\u003eDesign by WildWillyRobots on MakerWorld (license: BY).\u003c\/p\u003e","brand":"Mymadmanlab","offers":[{"title":"Default Title","offer_id":67395791061296,"sku":null,"price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/0809\/5280\/files\/0_9cac1ff5-9905-447e-a7fd-ffcf3863246b.jpg?v=1784837380","url":"https:\/\/mymadmanlab.com\/products\/stair-climbing-rover","provider":"Mymadmanlab.com","version":"1.0","type":"link"}