[{"data":1,"prerenderedAt":361},["ShallowReactive",2],{"project-44613438":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":20,"keywords":22,"reception":27,"sentiment":28,"stance_mix":29,"scored_comments":34,"aspects":35,"strip":44,"post_text":47,"what":48,"said":77,"maker_in_thread":202,"shape":205,"grid":210,"attempts":323,"same_week":324,"maker_shows":38,"maker_hidden":353,"reader_version":354,"card":355},"44613438","Compass CNC","Open-source handheld CNC router","title","Show HN: Compass CNC – Open-source handheld CNC router","https:\u002F\u002Fwww.compassrouter.com","compassrouter.com","camchaney",1752911295,2025,176,47,386,3837,11,"notable","hardware","handheld cnc router",[21,23,24,25,26],"open source cnc","optical flow sensors","diy cnc","woodworking router","curious",0.193,{"positive":30,"neutral":31,"mixed":32,"critical":33},8,15,0,6,29,{"docs":36,"execution":39,"design":40,"performance":41,"idea":42,"pricing":43},{"positive":37,"critical":38},2,1,{"positive":38,"critical":32},{"positive":38,"critical":32},{"positive":32,"critical":37},{"positive":32,"critical":37},{"positive":32,"critical":38},[45,32,32,46,45,38,46,46,46,46,46,32,46,32,32,32,32,45,45,46,32,32,32,38,46,32,38,32,38,45,46,32,32,45,46,45,38,45,46,46],5,3,"Hey HN,\n\nI am Cam, and for the past two years I have been working on Compass, an open-source handheld CNC router that brings computer precision to woodworking while keeping the user directly involved in the process.\n\nThe idea started as my senior design project at UC Berkeley, with the goal of making a more approachable CNC machine—standard CNC machines are expensive, bulky, and remove you from the tactile “maker” experience. Compass solves that by combining a handheld router with real-time robotic assistance. You move the router roughly along a design path, and Compass uses four optical flow ",{"problem":49,"audience":55,"pricing":64,"motivation":68,"time_to_build":72,"stack":73,"openness":74,"stage":75,"team_size":76},{"value":50,"source":51,"evidence":52},"Standard CNC machines are expensive, bulky and remove the hands-on maker experience.","maker",[53],{"id":54},"post",{"value":56,"source":57,"evidence":58},"DIY woodworkers and hobbyist makers.","inferred",[59,60],{"id":54},{"id":61,"by":62,"text":63},"44652772","lindsayrgwatt","Had a lot of fun building one of the demo units. Straightforward build and incredibly rewarding to build your own machine.",{"value":65,"source":51,"evidence":66},"DIY build about $600 in parts; kits sold for under $800.",[67],{"id":54},{"value":69,"source":51,"evidence":70},"Make CNC more approachable and keep the user involved; started as a senior design project at UC Berkeley.",[71],{"id":54},null,[],"open_source","launched","unknown",{"praise":78,"objections":99,"requests":139,"questions":159,"alternatives":174},[79,88],{"value":80,"source":81,"evidence":82},"Fun and rewarding to build; straightforward assembly.","commenter",[83,84],{"id":61,"by":62,"text":63},{"id":85,"by":86,"text":87},"44651939","Ductapemaster","I've always wanted a Shaper Origin, but the cost and subscription fee required for accessing some features always turned me off. I don't need it for anything other than fun hobby…",{"value":89,"source":81,"evidence":90},"Attractive concept for those who want portable CNC precision.",[91,95],{"id":92,"by":93,"text":94},"44651717","jrmann100","It was a pleasure trying your demo at Open Sauce 2025!",{"id":96,"by":97,"text":98},"44653343","bluGill","Size I assume - this should be able to handle massive projects at the same price, while a gantry router would be much more expensive. Or so I would assume, I didn't dig into this…",[100,110,124],{"value":101,"source":81,"evidence":102},"Gantry CNC routers are faster, more accurate and hands-off; use case unclear.",[103,107],{"id":104,"by":105,"text":106},"44653275","robomartin","Interesting project. I am sure it was a lot of work (and fun as well). I was introduced to the general concept when the Shaper Origin came out a while back. Here's my problem…",{"id":108,"by":105,"text":109},"44697040","Not really. I have done tons of manual wood working. I have 8 or 9 manual routers and a couple of CNC machines (real industrial ones, metal and wood). I have done just-about…",{"value":111,"source":81,"evidence":112},"Mouse-style sensors may drift and lack absolute registration over large distances.",[113,117,121],{"id":114,"by":115,"text":116},"44653816","recipe19","The reason Origin uses tape is to maintain precise, absolute registration over large distances - so that you can for example machine a pattern the size of a kitchen table. I am…",{"id":118,"by":119,"text":120},"44655092","namibj","Yeah mouse sensors actively throttle update frequency at slow speed to mitigate drift, as they appear to suffer pretty much random walk steps of sort each time they generate an…",{"id":122,"by":119,"text":123},"44797208","The issue isn't an instant loss of tracking, but gradual accumulation of quantization errors from subpixel-alignment of features and similar \"drift\" sources. Don't get me wrong:…",{"value":125,"source":81,"evidence":126},"Demo video is hard to find and landing page lacks project photos.",[127,131,135],{"id":128,"by":129,"text":130},"44651879","CodeWriter23","> You can find more info and the launch video at the listed URL. Maybe I'm a complete dumbass but I could not find a video at any of the URLs on this post using Chrome under…",{"id":132,"by":133,"text":134},"44651838","sgc","Looks like a very interesting project. A little feedback: I found a video of this in action in the forum link, but it should be on the landing page. Also, photo examples of…",{"id":136,"by":137,"text":138},"44655538","chromatin","Could be interesting, but I didn't see any \u002FPICTURES OR VIDEOS\u002F of what I could create with this product.",[140,145,152],{"value":141,"source":81,"evidence":142},"Add photos or video of larger completed projects and accuracy examples.",[143,144],{"id":132,"by":133,"text":134},{"id":136,"by":137,"text":138},{"value":146,"source":81,"evidence":147},"Provide links to 3D printable part files or suppliers.",[148,149],{"id":132,"by":133,"text":134},{"id":150,"by":11,"text":151},"44677438","Great feedback, thank you. The video is indeed on the landing page, but as people have mentioned it's hard to see (which is obviously a problem hahah). I am working on putting…",{"value":153,"source":81,"evidence":154},"Keep a video on the homepage and reduce image sizes for faster loading.",[155],{"id":156,"by":157,"text":158},"44655827","tealpod","Beautiful. I made few CNC's in my previous life, started a CNC company and bankrupted. Bankrupt because I tried to make everything myself, including electronic circuits. Your…",[160,167],{"value":161,"source":81,"evidence":162},"How the FCC certification was handled for the control board PCB.",[163],{"id":164,"by":165,"text":166},"44653117","fxtentacle","It looks like you're selling your own control board PCB design as part of the kit. I'm guessing that it doesn't have Wifi by itself, so that would make it an unintentional…",{"value":168,"source":81,"evidence":169},"Whether upgrades will be offered between revisions.",[170],{"id":171,"by":172,"text":173},"44652866","itsdesmond","Yoooooo. I am very seriously considering buying that kit. Do you intend to provide an upgrade path between revisions?",[175,185,195],{"value":176,"source":81,"evidence":177},"Shaper Origin",[178,181],{"id":179,"by":115,"text":180},"44651789","It's probably worth noting that a commercial version of this exists (Shaper Origin). It's a bit pricey but is remarkably nice for a variety of tasks that can't be handled by a…",{"id":182,"by":183,"text":184},"44653639","x0x0","The shaper is super cool, but a little pricey understates it. You can get a very nice router for $300-ish; the Shaper Origin is 3k.",{"value":186,"source":81,"evidence":187},"Maslow CNC",[188,192],{"id":189,"by":190,"text":191},"44652221","spiritplumber","Is this anything like the Maslow?",{"id":193,"by":115,"text":194},"44653880","Maslow is self-propelled using cables. It's the same goal - expand the work area by getting rid of a rigid frame of the mill - but a fundamentally different way of getting there.…",{"value":196,"source":81,"evidence":197},"Handibot",[198],{"id":199,"by":200,"text":201},"44659671","WillAdams","Also that there was a failed commercial attempt, which it turns out is getting re-booted: https:\u002F\u002Fhandibot.com\u002F",{"comments":38,"answered":32,"key":203},[204],{"id":150,"text":151},{"commenters":206,"max_depth":207,"maker_replies":38,"first_comment_mins":208,"lifespan_hours":209},31,7,4995,413,[211,213,215,217,220,224,226,227,230,232,235,238,241,243,246,248,252,254,256,259,260,261,263,266,269,271,274,276,278,280,282,284,286,288,290,291,293,297,299,301,305,307,311,313,315,317,318],[132,32,45,212,133,32],"project\u002Fpositive\u002Fdocs",[150,32,32,214,11,38],"maker\u002Fneutral\u002Fdocs",[179,38,32,216,115,32],"other\u002Fneutral\u002Fnone",[218,38,46,219,172,32],"44652852","project\u002Fneutral\u002Fexecution",[221,38,45,222,223,32],"44653696","project\u002Fpositive\u002Fdesign","anxman",[114,38,38,225,115,32],"project\u002Fcritical\u002Fperformance",[118,38,38,225,119,32],[228,38,46,219,229,32],"44657798","nullc",[122,38,46,231,119,32],"project\u002Fneutral\u002Fperformance",[233,38,46,231,234,32],"44671975","shaftway",[236,38,46,231,237,32],"44656097","numpad0",[239,38,46,219,240,32],"44656326","ragebol",[182,38,32,242,183,32],"other\u002Fneutral\u002Fpricing",[244,38,32,216,245,32],"44653705","NegativeLatency",[247,38,46,219,119,32],"44655121",[249,38,32,250,251,32],"44657214","commenter\u002Fneutral\u002Fnone","poulpy123",[253,38,32,216,251,32],"44657204",[255,38,32,242,115,32],"44653854",[257,38,32,242,258,32],"44655053","starkparker",[199,38,32,216,200,32],[156,37,45,212,157,32],[92,46,45,262,93,32],"project\u002Fpositive\u002Fnone",[164,264,46,265,165,32],4,"project\u002Fneutral\u002Fnone",[267,264,32,250,268,32],"44653893","blackguardx",[270,264,32,250,165,32],"44656047",[272,264,32,250,273,32],"44655781","aaronblohowiak",[275,264,32,250,165,32],"44656042",[104,45,38,277,105,32],"project\u002Fcritical\u002Fidea",[96,45,46,279,97,32],"project\u002Fneutral\u002Fidea",[281,45,32,216,229,32],"44655832",[283,45,38,277,105,32],"44697143",[285,45,32,250,251,32],"44657486",[108,45,38,287,105,32],"project\u002Fcritical\u002Fpricing",[289,45,32,216,234,32],"44672162",[85,33,45,262,86,32],[128,207,46,292,129,32],"project\u002Fneutral\u002Fdocs",[294,207,32,295,296,32],"44652524","commenter\u002Fneutral\u002Fdocs","NoNotTheDuo",[298,207,32,250,129,32],"44675168",[61,30,45,300,62,32],"project\u002Fpositive\u002Fexecution",[302,303,46,265,304,32],"44651589",9,"hbarka",[306,303,46,265,200,32],"44654230",[308,309,45,262,310,32],"44667631",10,"adi_hn07",[136,18,38,312,137,32],"project\u002Fcritical\u002Fdocs",[171,314,45,262,172,32],12,[189,316,46,279,190,32],13,[193,316,46,279,115,32],[319,320,46,321,322,32],"44659465",14,"project\u002Fneutral\u002Fpricing","pcdoodle",[],[325,330,335,340,344,348],{"id":326,"name":327,"points":328,"category":329},"44664873","Tender",1030,"consumer_social",{"id":331,"name":332,"points":333,"category":334},"44594584","Conductor",228,"dev_tools",{"id":336,"name":337,"points":338,"category":339},"44630648","connmap",205,"infrastructure",{"id":341,"name":342,"points":343,"category":339},"44661673","Apple Health MCP",199,{"id":345,"name":346,"points":347,"category":339},"44662497","TheProtector",167,{"id":349,"name":350,"points":351,"category":352},"44622374","blender-mcp",151,"creative",false,"v2",{"id":356,"name":5,"line":6,"ai":353,"cat":20,"year":13,"points":14,"comments":15,"rec":27,"s":357,"top":18,"kw":358,"maker":11,"domain":10,"tier":19,"attempts":32,"strip":359,"url":9,"mix":360,"praise":80,"objection":101,"sub":21},44613438,0.19,[21,23,24,25,26],"5003513333303000055300013010153005351533",[30,31,32,33],1794036678786]