[{"data":1,"prerenderedAt":591},["ShallowReactive",2],{"project-30446960":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":5,"maker":10,"posted_at":11,"year":12,"points":13,"comments":14,"rank_in_year":14,"shown_in_year":15,"top":16,"tier":17,"category":18,"subcategory":19,"format":20,"keywords":21,"reception":26,"sentiment":27,"stance_mix":28,"scored_comments":33,"aspects":34,"strip":46,"post_text":48,"what":49,"said":84,"maker_in_thread":168,"shape":181,"grid":185,"attempts":553,"same_week":554,"maker_shows":39,"maker_hidden":583,"reader_version":584,"card":585},"30446960","endless-sphere.com","I Designed and Built an eBike","title","Show HN: I Designed and Built an eBike","https:\u002F\u002Fendless-sphere.com\u002Fforums\u002Fviewtopic.php?f=6&t=115176&p=1703136#p1703136","gkasev",1645652761,2022,304,137,2570,6,"legend","hardware","ebike","other",[19,22,23,24,25],"electric bike","homemade ebike","motor kit","throttle","curious",-0.017,{"positive":29,"neutral":30,"mixed":31,"critical":32},9,41,3,12,65,{"execution":35,"pricing":38,"idea":40,"design":41,"performance":43,"docs":45},{"positive":36,"critical":37},2,0,{"positive":37,"critical":39},1,{"positive":31,"critical":37},{"positive":36,"critical":42},4,{"positive":39,"critical":44},7,{"positive":37,"critical":37},[47,31,31,37,42,37,31,31,36,36,47,39,39,37,31,47,36,31,37,31,47,31,39,47,37,31,39,47,31,39,31,47,31,31,31,31,39,42,37,39],5,"This post shows and explains the design of the eBike I built myself. I decided to post it on this specific forum because this is where it all started, by stumbling on another post, as mentioned in my entry.",{"problem":50,"audience":57,"pricing":58,"motivation":64,"time_to_build":57,"stack":68,"openness":81,"stage":82,"team_size":83},{"value":51,"source":52,"evidence":53},"Long commute by bike; a motorised assist for riding to work","maker",[54],{"id":55,"by":10,"text":56},"30451949","Yes, I have a long commute to work (18km one way) and this was my main motivation for building the bike. On the controls side of thing, I have the ECU and an Arduino Nano. The…",null,{"value":59,"source":52,"evidence":60},"Kit cost about 1212 EUR, excluding the bike frame",[61],{"id":62,"by":10,"text":63},"30451823","The cost that I mention in my post doesn't include the cost of the bike. I payed 1212€ just for the kit.",{"value":65,"source":52,"evidence":66},"Long 18km commute to work",[67],{"id":55,"by":10,"text":56},[69,73],{"value":70,"source":52,"evidence":71},"Arduino Nano",[72],{"id":55,"by":10,"text":56},{"value":74,"source":75,"evidence":76},"HobbyWing ESC","commenter",[77],{"id":78,"by":79,"text":80},"30447469","bri3d","A few ideas: * A VESC based ESC instead of the HobbyWing one will give a lot more control and telemetry, including a phone app and detailed current use logging. I know from RC…","unknown","launched","solo",{"praise":85,"objections":109,"requests":135,"questions":144,"alternatives":159},[86,101],{"value":87,"source":75,"evidence":88},"Clean, unique design and build quality",[89,93,97],{"id":90,"by":91,"text":92},"30448794","ehnto","I love that you focused on commodity parts. That is excellent, I really like the placement of the system. Do you intend to take it trails riding? I would just be careful of those…",{"id":94,"by":95,"text":96},"30453086","jacquesm","That's a beautiful piece of work, if I may make a couple of suggestions: - chamfer all exposed 90 degree angles - shrinkwrap the whole thing so it is protected from the weather…",{"id":98,"by":99,"text":100},"30452574","squarefoot","Excellent build, also very beautiful to look at; I hope to see a video of it in action. It's strange that the author encountered difficulties in soldering XT90 connectors; I…",{"value":102,"source":75,"evidence":103},"Commodity parts and simple throttle control",[104,105],{"id":90,"by":91,"text":92},{"id":106,"by":107,"text":108},"30448088","stavros","This is fantastic, well done! I love the simplicity of the kit. I'm extremely surprised to hear that soldering the XT90s was hard. Even a $20 Pinecil (well, maybe I shouldn't say…",[110,117,128],{"value":111,"source":75,"evidence":112},"Motor may not handle torque of hills and may burn out",[113],{"id":114,"by":115,"text":116},"30453884","jakecodes","Hey there! Nice work, looks great! I've built a few of these and the biggest concern with those motors (I've tried them before) is that they aren't made to handle the torque of…",{"value":118,"source":75,"evidence":119},"Not weatherproof; exposed parts and mud\u002Fwater problems",[120,124],{"id":121,"by":122,"text":123},"30447282","2muchcoffeeman","Is it weather proof? I guess not since the motor windings are exposed? Where did you get the sheet metal fabricated? Otherwise looks good! When I got a 3D printer it was amazing…",{"id":125,"by":126,"text":127},"30447451","slingnow","Cool build, but it doesn't look like it would actually stand up to the typical stresses of mountain biking (rock strikes, water, mud, debris, etc). On super smooth singletrack I…",{"value":129,"source":75,"evidence":130},"External chain looks unsafe",[131],{"id":132,"by":133,"text":134},"30449111","placson","Nice design but that external chain looks scary.",[136,140],{"value":137,"source":75,"evidence":138},"Use a VESC controller for more control and telemetry",[139],{"id":78,"by":79,"text":80},{"value":141,"source":75,"evidence":142},"Better connection between motor kit and frame",[143],{"id":94,"by":95,"text":96},[145,152],{"value":146,"source":75,"evidence":147},"Maximum speed",[148],{"id":149,"by":150,"text":151},"30451042","barbarbar","What is the max velocity? I sometimes see people on new fast e-bikes and it seems a bit scary. And sometimes the rider also looks a bit scared or not really in control.",{"value":153,"source":75,"evidence":154},"Expected range",[155],{"id":156,"by":157,"text":158},"30447534","mft_","How are the mounting brackets made (or obtained)? You said you didn’t want to CNC anything, but they look CNC or laser cut? Any estimates of your expected range?",[160,164],{"value":161,"source":75,"evidence":162},"VESC controller",[163],{"id":78,"by":79,"text":80},{"value":165,"source":75,"evidence":166},"Pinecil soldering iron",[167],{"id":106,"by":107,"text":108},{"comments":169,"answered":170,"key":171},27,17,[172,175,178],{"id":173,"text":174},"30448293","It is very hard to tin the cable ends well and tinning is key to soldering. I have a proper soldering iron, but no special device to only tin cables (I’m blanking on the right…",{"id":176,"text":177},"30448457","Yes, this is how it works on thin cables, but the ones on the ECU are very thick and very hard to tin with soldering iron. I finally managed it, but it was a fight. I’m using the…",{"id":179,"text":180},"30448673","I got the gearbox used on eBay for about 100€. There are plenty of them available.",{"commenters":182,"max_depth":183,"maker_replies":169,"first_comment_mins":169,"lifespan_hours":184},73,8,70,[186,188,192,195,198,200,202,203,205,208,211,215,218,221,225,227,230,233,236,239,241,242,245,247,249,252,255,258,262,266,269,272,274,277,281,283,287,289,292,295,297,300,303,305,306,309,312,315,318,321,322,326,328,330,332,334,336,339,342,344,345,348,350,353,355,357,359,361,364,366,369,373,376,379,381,385,387,389,391,393,395,397,401,405,408,410,412,414,416,418,420,422,424,428,431,433,437,439,441,444,446,450,453,455,457,459,463,467,470,472,476,479,482,485,487,491,494,497,499,502,507,510,513,516,519,521,523,528,531,533,536,538,540,542,545,547,551],[106,37,47,187,107,37],"project\u002Fpositive\u002Fexecution",[189,37,31,190,191,37],"30448159","project\u002Fneutral\u002Fexecution","notjulianjaynes",[193,37,37,194,107,37],"30448209","commenter\u002Fneutral\u002Fexecution",[196,37,37,194,197,37],"30449233","m4x",[173,37,37,199,10,39],"maker\u002Fneutral\u002Fexecution",[201,37,31,199,107,37],"30448309",[176,37,37,199,10,39],[204,37,31,199,107,37],"30448846",[206,37,37,194,207,37],"30448385","michaelt",[209,37,37,210,107,37],"30448407","commenter\u002Fneutral\u002Fnone",[212,37,37,213,214,37],"30449597","other\u002Fneutral\u002Fnone","irjustin",[216,37,37,213,217,37],"30452570","johnwalkr",[219,37,37,210,220,37],"30452192","rasz",[222,37,31,223,224,37],"30448553","project\u002Fneutral\u002Fpricing","earleybird",[179,37,37,226,10,39],"maker\u002Fneutral\u002Fpricing",[228,37,47,229,224,37],"30449154","project\u002Fpositive\u002Fidea",[231,37,31,223,232,37],"30448691","VectorLock",[234,37,37,235,107,37],"30448850","commenter\u002Fneutral\u002Fpricing",[237,37,37,235,238,37],"30449026","octodog",[240,37,37,235,107,37],"30449040",[62,37,37,226,10,39],[243,37,31,190,244,37],"30455384","bluesquared",[246,37,31,190,107,37],"30455462",[78,39,31,248,79,37],"project\u002Fneutral\u002Fdesign",[250,39,37,251,10,39],"30448523","maker\u002Fneutral\u002Fdesign",[253,36,31,248,254,37],"30448853","mperham",[256,36,31,248,257,37],"30449130","pcdoodle",[259,36,31,260,261,37],"30449279","project\u002Fneutral\u002Fperformance","dmix",[263,36,39,264,265,37],"30449301","project\u002Fcritical\u002Fperformance","KennyBlanken",[267,36,31,260,268,37],"30452455","gocartStatue",[270,36,31,260,271,37],"30452475","detaro",[273,36,31,260,268,37],"30480863",[275,36,39,264,276,37],"30449553","davidjohnstone",[278,36,37,279,280,37],"30453495","commenter\u002Fneutral\u002Fperformance","mariusor",[282,36,37,279,276,37],"30454427",[284,36,47,285,286,37],"30455463","project\u002Fpositive\u002Fperformance","DebtDeflation",[288,36,37,279,257,37],"30459054",[290,36,39,264,291,37],"30449438","coryrc",[293,36,31,260,294,37],"30449502","throwoutway",[296,36,31,260,291,37],"30449549",[298,36,39,264,299,37],"30451275","zik",[301,36,31,248,302,37],"30449652","analog31",[304,36,37,251,10,39],"30452451",[114,31,39,264,115,37],[307,31,37,279,308,37],"30454966","tromp",[310,31,37,279,311,37],"30458619","loeg",[313,42,37,314,302,37],"30449001","other\u002Fneutral\u002Fidea",[316,42,31,248,317,37],"30449564","derekp7",[319,42,37,320,302,37],"30449782","other\u002Fneutral\u002Fdocs",[55,42,37,251,10,39],[323,42,37,324,325,37],"30451979","commenter\u002Fneutral\u002Fdesign","stinos",[327,42,37,324,217,37],"30453378",[98,47,47,329,99,37],"project\u002Fpositive\u002Fdesign",[331,47,37,194,95,37],"30453093",[125,16,39,333,126,37],"project\u002Fcritical\u002Fdesign",[335,16,37,251,10,39],"30448410",[337,16,31,248,338,37],"30448751","andrew_",[340,44,31,248,341,37],"30447288","jstanley",[343,44,37,251,10,39],"30448055",[121,183,31,248,122,37],[346,183,37,210,347,37],"30447969","holoduke",[349,183,37,199,10,39],"30448197",[351,183,37,210,352,37],"30449084","usrusr",[354,183,37,210,217,37],"30452774",[356,183,37,210,122,37],"30461797",[358,183,37,210,122,37],"30461635",[360,183,37,199,10,39],"30448169",[362,183,31,199,363,37],"30449689","bigiain",[365,183,37,199,10,39],"30452246",[367,183,47,368,363,37],"30461700","maker\u002Fpositive\u002Fexecution",[370,29,37,371,372,37],"30449207","other\u002Fpositive\u002Fnone","kumarvvr",[90,374,31,375,91,37],10,"project\u002Fmixed\u002Fdesign",[377,374,37,210,378,37],"30449392","keville",[380,374,37,251,10,39],"30451980",[382,383,31,248,384,37],"30447642",11,"ghostly_s",[386,383,39,333,265,37],"30447736",[388,383,39,333,384,37],"30447920",[390,383,31,248,232,37],"30448782",[392,383,37,248,10,39],"30452400",[394,383,37,210,265,37],"30449307",[396,383,37,248,10,39],"30447991",[398,32,47,399,400,37],"30452780","project\u002Fpositive\u002Fnone","jillesvangurp",[402,403,37,213,404,37],"30448433",13,"ggm",[406,403,37,213,407,37],"30448488","ricardobeat",[409,403,37,248,10,39],"30448717",[411,403,37,213,91,37],"30448861",[413,403,37,210,91,37],"30451415",[94,415,31,375,95,37],14,[417,415,37,251,10,39],"30453607",[419,415,39,264,95,37],"30454827",[149,421,31,260,150,37],15,[423,421,37,260,10,39],"30451885",[425,426,47,329,427,37],"30453290",16,"GrumpyNl",[429,426,37,430,10,39],"30453526","maker\u002Fpositive\u002Fnone",[432,170,37,371,294,37],"30449499",[434,435,31,248,436,37],"30448191",18,"neilv",[438,435,37,251,10,39],"30452033",[156,440,31,190,157,37],19,[442,440,31,190,443,37],"30447861","Hextinium",[445,440,37,190,10,39],"30448128",[447,440,39,448,449,37],"30448145","project\u002Fcritical\u002Fpricing","convolvatron",[451,440,31,223,452,37],"30448256","c22",[454,440,37,210,449,37],"30448330",[456,440,37,210,232,37],"30448791",[458,440,37,210,449,37],"30448828",[460,440,31,461,462,37],"30448271","project\u002Fneutral\u002Fdocs","guynamedloren",[464,465,47,229,466,37],"30447478",20,"vosper",[468,465,31,469,311,37],"30447913","project\u002Fneutral\u002Fnone",[471,465,37,199,10,39],"30448219",[473,474,37,213,475,37],"30448838",21,"NicoJuicy",[477,474,37,213,478,37],"30448941","dangle1",[480,474,37,213,481,37],"30449178","langsoul-com",[483,484,31,248,191,37],"30448221",22,[486,484,37,248,10,39],"30448361",[488,489,31,248,490,37],"30448135",23,"initplus",[492,489,31,248,493,37],"30448195","etcet",[495,489,31,248,496,37],"30448216","blackth0rn",[498,489,37,248,10,39],"30448544",[500,489,31,248,501,37],"30448790","8note",[503,504,31,505,506,37],"30448285",24,"project\u002Fmixed\u002Fidea","jdiez17",[508,504,37,509,10,39],"30448307","maker\u002Fneutral\u002Fnone",[511,504,31,469,512,37],"30448670","_ph_",[514,504,31,469,515,37],"30448875","sva_",[517,504,31,469,518,37],"30449073","emteycz",[520,504,37,210,363,37],"30449738",[132,522,39,333,133,37],25,[524,525,47,526,527,37],"30450435",26,"maker\u002Fpositive\u002Fidea","coding123",[529,169,31,190,530,37],"30447735","mdoms",[532,169,31,190,443,37],"30447814",[534,169,37,194,535,37],"30447881","frosted-flakes",[537,169,37,210,224,37],"30448643",[539,169,37,210,501,37],"30448801",[541,169,37,194,530,37],"30447918",[543,169,37,194,544,37],"30449153","jbay808",[546,169,37,199,10,39],"30448248",[548,549,39,264,550,37],"30449887",28,"Avlin67",[552,549,37,526,10,39],"30452125",[],[555,560,565,569,573,578],{"id":556,"name":557,"points":558,"category":559},"30399881","Judy Records",698,"data",{"id":561,"name":562,"points":563,"category":564},"30408434","Rotator",659,"games",{"id":566,"name":567,"points":568,"category":18},"30440828","Simula One",463,{"id":570,"name":571,"points":572,"category":559},"30417411","google-drive-to-sqlite",305,{"id":574,"name":575,"points":576,"category":577},"30440275","Supernotes 2",251,"productivity",{"id":579,"name":580,"points":581,"category":582},"30378562","curl-impersonate",249,"dev_tools",false,"v2",{"id":586,"name":5,"line":6,"ai":583,"cat":18,"year":12,"points":13,"comments":14,"rec":26,"s":587,"top":16,"kw":588,"maker":10,"domain":5,"tier":17,"attempts":37,"strip":589,"url":9,"mix":590,"praise":87,"objection":111,"sub":19},30446960,-0.02,[19,22,23,24,25],"5330403322511035230353150315313533331401",[29,30,31,32],1794036617363]