[{"data":1,"prerenderedAt":433},["ShallowReactive",2],{"project-16520955":3},{"id":4,"name":5,"line":5,"line_source":6,"title":7,"url":8,"domain":9,"maker":10,"posted_at":11,"year":12,"points":13,"comments":14,"rank_in_year":15,"shown_in_year":16,"top":17,"tier":18,"category":19,"subcategory":20,"format":19,"keywords":21,"reception":27,"sentiment":28,"stance_mix":29,"scored_comments":34,"aspects":35,"strip":43,"post_text":45,"what":46,"said":79,"maker_in_thread":154,"shape":166,"grid":171,"attempts":390,"same_week":395,"maker_shows":40,"maker_hidden":425,"reader_version":426,"card":427},"16520955","Hacking a Mercedes GLA Class Ride-on kids car","title","Show HN: Hacking a Mercedes GLA Class Ride-on kids car","http:\u002F\u002Fihackshit.com\u002Fblog\u002F?p=101","ihackshit.com","AnnoyingSwede",1520257524,2018,221,83,150,2155,7,"notable","hardware","ride-on car modification",[22,23,24,25,26],"ride-on car","power wheels hack","kids electric car","48v motor","rc car conversion","curious",0.124,{"positive":30,"neutral":31,"mixed":32,"critical":33},6,25,0,4,35,{"idea":36,"performance":38,"execution":39,"design":41},{"positive":37,"critical":32},3,{"positive":32,"critical":32},{"positive":40,"critical":40},1,{"positive":32,"critical":42},2,[37,44,32,32,32,37,32,44,37,37,37,37,37,37,32,32,37,40,40,40,37,40,37,44,37,32,32,37,37,32,44,37,32,37,44,44,32,32,32,32],5,null,{"problem":47,"audience":45,"pricing":45,"motivation":57,"time_to_build":45,"stack":67,"openness":76,"stage":77,"team_size":78},{"value":48,"source":49,"evidence":50},"Turning a kids ride-on car into a more powerful, radio-controlled build for the maker's young son","maker",[51,54],{"id":52,"by":10,"text":53},"16521794","Update: A few safety concerned readers mentioned: Top speed: My aim (until he is older) is 7-10km per hour, but with a torque that allows burnouts and donuts. A safety cage might…",{"id":55,"by":10,"text":56},"16528032","My webhosting provider removed the tiny video that seems to have slashdotted them a tad after yesterdays exposure here on HN. This video is now on youtube, hopefully i will be…",{"value":58,"source":49,"evidence":59},"Build a fun car for his son and inspire DIY, as the maker never had such a dad",[60,63],{"id":61,"by":10,"text":62},"16521772","Besides my interest in builds and electronics, this is why i am doing this. I never had such a dad either.",{"id":64,"by":65,"text":66},"16521619","bitwize","Geez, dads are awesome. This is some shit that mine would have totally done for toddler me, had he the money and time.",[68,72],{"value":69,"source":49,"evidence":70},"48V e-scooter motor running at 12V",[71],{"id":55,"by":10,"text":56},{"value":73,"source":49,"evidence":74},"Radio control with brake servos",[75],{"id":55,"by":10,"text":56},"unknown","prototype","solo",{"praise":80,"objections":94,"requests":113,"questions":131,"alternatives":139},[81,90],{"value":82,"source":83,"evidence":84},"Impressive DIY build and fun idea for kids","commenter",[85,86],{"id":64,"by":65,"text":66},{"id":87,"by":88,"text":89},"16521542","wumms","Great Scott! If my calculations are correct, when this baby gets an 1 kW motor... you're gonna see some serious shit.",{"value":91,"source":49,"evidence":92},"Good constructive safety feedback",[93],{"id":55,"by":10,"text":56},[95,106],{"value":96,"source":83,"evidence":97},"Build seems ambitious and potentially unsafe for a young child",[98,102],{"id":99,"by":100,"text":101},"16521802","jerkstate","This is a great project but it sounds a little ambitious. I suggest stripping down to the bare minimum to make your kid have fun and adding new things over time. I am going…",{"id":103,"by":104,"text":105},"16521671","edraferi","> I also decided this build will need welding. Having never welded aluminium, i ordered a 200Amp TIG\u002FMMA welding machine, rebuilt the main fuse-box in my house to be able to run…",{"value":107,"source":83,"evidence":108},"Top speed and tipping risk need a safety cage or wider base",[109,112],{"id":110,"by":10,"text":111},"16527642","Agree got one. A wider wheelbase of the car, lower center of gravity, and wheels 50mm-100mm wider will help keeping it from tipping over. I have a seatbelt but like a few pointed…",{"id":55,"by":10,"text":56},[114,124],{"value":115,"source":83,"evidence":116},"Add braking or brake control",[117,121],{"id":118,"by":119,"text":120},"16522206","mschuster91","> and it's so fast now that I need to figure out how to add brakes Why not use electric brakes first? Take some high-load resistors, and use a high-current relay to switch the…",{"id":122,"by":100,"text":123},"16522847","I've thought about doing something like that but I'm not sure if the plastic wheels and gear box can handle it, and I'm not sure how much more effort I want to invest in a…",{"value":125,"source":83,"evidence":126},"Add ultrasonic collision sensors",[127],{"id":128,"by":129,"text":130},"16524752","whatismybrowser","awesome project! another feature idea I just had: put a couple of ultra sonic sensors on the front and back. on the back: to emulate the reverse parking \"beep-beep\" indicators.…",[132],{"value":133,"source":83,"evidence":134},"How to teach a toddler to steer straight",[135],{"id":136,"by":137,"text":138},"16522237","jedberg","I've been putting my three year old in her car to drive since she turned two, but she still drives like a drunk. How did you get him to understand that he has to keep the wheel…",[140,147],{"value":141,"source":83,"evidence":142},"Toylander ride-on kits",[143],{"id":144,"by":145,"text":146},"16524279","chrissnell","I'm a big fan and owner of a Land Rover Defender, so my kiddo car of choice is the Toylander: https:\u002F\u002Fwww.toylander.com\u002F These are really fine (and expensive) ride-on car kits.…",{"value":148,"source":83,"evidence":149},"Power Racing Series",[150],{"id":151,"by":152,"text":153},"16521673","4ndr3vv","Obligitory link to the ppprs http:\u002F\u002Fwww.powerracingseries.org",{"comments":155,"answered":37,"key":156},16,[157,160,163],{"id":158,"text":159},"16521722","No woman, no cry ;) UHM: Don't get me wrong. I wish it would have worked out better between my ex and me but stuff happens in life. I am sure she would not have allowed the…",{"id":161,"text":162},"16568025","Wanted to respond to this for a week but been home, sick as a dog and didn't have my HN credentials. This is spot-on, and next step IS a mill :) It's a bit scary how close you…",{"id":164,"text":165},"16521739","I totally missed this! Thanks a million times. By the time Chris is 5, he will beat her on the strip.",{"commenters":167,"max_depth":168,"maker_replies":155,"first_comment_mins":169,"lifespan_hours":170},53,8,11,168,[172,174,176,180,183,187,190,194,197,199,200,204,206,209,211,214,216,218,219,221,224,227,230,231,234,236,240,243,246,247,250,253,256,257,259,260,264,268,270,273,276,278,281,284,286,289,292,296,298,301,304,307,310,312,313,316,318,322,325,329,331,333,337,339,343,345,348,351,353,356,358,361,364,365,369,371,374,376,379,382,385,388],[103,32,37,173,104,32],"project\u002Fneutral\u002Fnone",[158,32,32,175,10,40],"maker\u002Fneutral\u002Fnone",[177,32,44,178,179,32],"16522005","project\u002Fpositive\u002Fidea","andrewstuart2",[181,32,37,175,182,32],"16522178","LeifCarrotson",[184,32,32,185,186,32],"16524205","other\u002Fneutral\u002Fpricing","cr0sh",[188,32,32,185,189,32],"16525352","TheSpiceIsLife",[191,32,32,192,193,32],"16526426","other\u002Fneutral\u002Fnone","asteli",[195,32,32,192,196,32],"16526554","convolvatron",[198,32,32,192,189,32],"16527098",[161,32,32,175,10,40],[201,32,37,202,203,32],"16522696","project\u002Fneutral\u002Fperformance","dsfyu404ed",[205,32,32,192,196,32],"16522818",[207,32,32,208,203,32],"16523173","commenter\u002Fneutral\u002Fnone",[210,32,32,208,196,32],"16523331",[212,32,32,192,213,32],"16523261","ChuckMcM",[99,40,44,215,100,32],"project\u002Fpositive\u002Fexecution",[118,40,37,217,119,32],"project\u002Fneutral\u002Fdesign",[122,40,37,217,100,32],[220,40,37,202,119,32],"16524009",[222,40,37,217,223,32],"16522220","_pmf_",[225,40,37,226,100,32],"16522885","project\u002Fneutral\u002Fexecution",[228,40,37,217,229,32],"16524412","pbhjpbhj",[136,40,37,173,137,32],[232,40,37,173,233,32],"16522596","faitswulff",[235,40,37,173,100,32],"16522651",[237,40,32,238,239,32],"16524950","commenter\u002Fpositive\u002Fnone","tomcam",[241,40,37,173,242,32],"16523742","BatFastard",[244,42,32,192,245,32],"16521679","lbotos",[164,42,32,175,10,40],[248,42,32,192,249,32],"16521759","tonyarkles",[251,42,32,192,252,32],"16524589","gm-conspiracy",[254,42,32,192,255,32],"16522746","azinman2",[52,37,32,175,10,40],[258,37,37,173,100,32],"16521895",[110,37,32,175,10,40],[261,37,40,262,263,32],"16521988","project\u002Fcritical\u002Fnone","3chelon",[265,37,40,266,267,32],"16523985","project\u002Fcritical\u002Fdesign","GoodOldNe",[269,33,32,175,10,40],"16521025",[271,33,40,266,272,32],"16521382","matte_black",[274,33,37,217,275,32],"16521544","bri3d",[277,33,32,175,10,40],"16521563",[279,33,37,217,280,32],"16521699","Peroni",[282,33,37,217,283,32],"16521836","aidenn0",[285,33,32,175,10,40],"16522081",[287,33,40,288,283,32],"16522978","project\u002Fcritical\u002Fexecution",[290,33,37,217,291,32],"16523163","mhb",[293,33,37,294,295,32],"16521618","project\u002Fneutral\u002Fidea","apo",[87,44,44,297,88,32],"project\u002Fpositive\u002Fnone",[299,44,37,202,300,32],"16522204","mikestew",[302,44,37,217,303,32],"16522454","ballenf",[305,44,32,306,186,32],"16524271","other\u002Fneutral\u002Fperformance",[308,30,32,192,309,32],"16522137","dugmartin",[311,30,32,175,10,40],"16527648",[151,17,32,192,152,32],[314,168,32,192,315,32],"16522131","chjohnst",[55,317,32,175,10,40],9,[319,320,37,202,321,32],"16522472",10,"teekert",[323,169,37,202,324,32],"16522084","nathan_long",[326,327,32,192,328,32],"16521626",12,"bmsleight_",[330,327,32,175,10,40],"16521758",[332,327,32,175,10,40],"16527652",[334,335,44,178,336,32],"16522787",13,"eitland",[144,338,32,192,145,32],14,[340,341,37,294,342,32],"16521391",15,"uptown",[344,341,32,217,10,40],"16521584",[346,341,32,208,347,32],"16521593","djrogers",[349,341,32,208,350,32],"16521812","giarc",[352,341,37,173,100,32],"16521850",[354,155,32,306,355,32],"16523723","pryelluw",[128,357,44,178,129,32],17,[359,357,32,360,10,40],"16527657","maker\u002Fpositive\u002Fidea",[64,362,44,363,65,32],18,"maker\u002Fpositive\u002Fnone",[61,362,32,175,10,40],[366,367,32,208,368,32],"16521556",19,"jordigh",[370,367,32,208,10,40],"16521605",[372,367,32,208,373,32],"16521768","kakarot",[375,367,32,208,283,32],"16521828",[377,367,32,208,378,32],"16521846","vinay427",[380,367,32,208,381,32],"16521869","thieving_magpie",[383,367,32,208,384,32],"16522613","mywittyname",[386,367,32,192,387,32],"16524778","SirZimzim",[389,367,32,192,368,32],"16525335",[391,392],{"id":4,"t":11,"points":13,"comments":14},{"id":393,"t":394,"points":42,"comments":40},"18457841",1542272077,[396,401,406,411,416,421],{"id":397,"name":398,"points":399,"category":400},"16535358","Mathpix",456,"ai",{"id":402,"name":403,"points":404,"category":405},"16490595","Graphite",330,"productivity",{"id":407,"name":408,"points":409,"category":410},"16521385","Hearth",315,"infrastructure",{"id":412,"name":413,"points":414,"category":415},"16529557","Investment 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