[{"data":1,"prerenderedAt":328},["ShallowReactive",2],{"post-zh-guides-cam-toolpath-basics":3,"header-article-translation-zh-guides-cam-toolpath-basics":182,"trans-guides-toolpath-basics-zh":183},{"id":4,"title":5,"body":6,"category":156,"date":157,"description":158,"difficulty":159,"draft":160,"duration":161,"extension":162,"featured":160,"image":163,"layout":166,"locale":167,"meta":168,"navigation":169,"path":170,"references":171,"related":175,"section":176,"seo":177,"slug":178,"status":175,"stem":179,"tags":175,"translationKey":180,"updated":175,"video":175,"__hash__":181},"content\u002Fzh\u002Fguides\u002Fcam-toolpath-basics.md","CAM 刀路规划与保守切削参数指引",{"type":7,"value":8,"toc":149},"minimark",[9,18,22,25,31,34,42,47,50,78,81,146],[10,11,14],"cnc-warning",{"level":12,"title":13},"warning","首次试切安全准则",[15,16,17],"p",{},"首次切削前，请确认工件夹持可靠，佩戴符合 ANSI Z87.1 的护目镜，将急停开关保持在可触及范围，并先使用废料进行试切。下列数值只是保守起始值，不保证适用于所有机床和材料。",[19,20,21],"h2",{"id":21},"为什么桌面机床需要保守参数",[15,23,24],{},"桌面数控雕刻机的铝型材与光杆结构刚性远低于重型铸铁机床。盲目套用工业加工中心的激进进给，容易引发机床剧烈颤振、表面起棱起毛，甚至导致细柄硬质合金铣刀瞬间崩断。",[26,27],"figure",{"alt":28,"caption":29,"src":30},"多层板切削试样","图 1：采用保守进给参数在桌面雕刻机上完成的桦木多层板试切样品","\u002Fmedia\u002Fproject1.webp",[19,32,33],{"id":33},"切削参数计算公式",[15,35,36,37,41],{},"主轴每分钟进给量 (",[38,39,40],"strong",{},"F",") 计算公式：",[15,43,44],{},[38,45,46],{},"F = 主轴转速 (RPM) × 刀刃数 × 每刃切削厚度 (mm)",[15,48,49],{},"以标准的 3.175mm（1\u002F8 英寸）双刃硬质合金上切铣刀切削桦木多层板或 MDF 为例：",[51,52,53,60,66,72],"ul",{},[54,55,56,59],"li",{},[38,57,58],{},"主轴转速","：16,000 - 18,000 RPM",[54,61,62,65],{},[38,63,64],{},"刀刃数","：2",[54,67,68,71],{},[38,69,70],{},"目标单刃切削量","：0.05 - 0.08 mm\u002F齿",[54,73,74,77],{},[38,75,76],{},"起始进给范围","：1,600 - 2,400 mm\u002Fmin",[19,79,80],{"id":80},"常用板材推荐基准切削用量",[82,83,85],"parameter-table",{"title":84},"3.175mm 刀具在桌面 CNC 上的保守起始基准",[86,87,88,117],"table",{},[89,90,91],"thead",{},[92,93,94,99,102,105,108,111,114],"tr",{},[95,96,98],"th",{"align":97},"left","加工材料",[95,100,101],{"align":97},"主轴转速 (RPM)",[95,103,104],{"align":97},"单刃切削量 (mm\u002F齿)",[95,106,107],{"align":97},"水平切削进给 (mm\u002Fmin)",[95,109,110],{"align":97},"垂直下刀速度 (mm\u002Fmin)",[95,112,113],{"align":97},"单层最大下刀深度",[95,115,116],{"align":97},"横向步距",[118,119,120],"tbody",{},[92,121,122,128,131,134,137,140,143],{},[123,124,125],"td",{"align":97},[38,126,127],{},"桦木多层板 \u002F MDF",[123,129,130],{"align":97},"16,000 - 18,000",[123,132,133],{"align":97},"0.05 - 0.08",[123,135,136],{"align":97},"1,600 - 2,400",[123,138,139],{"align":97},"400 - 600（优先采用坡走下刀）",[123,141,142],{"align":97},"1.5 mm（≤ 刀具直径的 50%）",[123,144,145],{"align":97},"刀具直径的 40% - 45%",[15,147,148],{},"请先使用废料试切，再在正式加工前检查可用的刀路\u002F材料去除预览。如果机床或材料不同于技术笔记中的条件，应以机床制造商指导为准。",{"title":150,"searchDepth":151,"depth":151,"links":152},"",2,[153,154,155],{"id":21,"depth":151,"text":21},{"id":33,"depth":151,"text":33},{"id":80,"depth":151,"text":80},"刀路规划","2026-09-08","在桌面雕刻机上安全生成 2D 轮廓与下陷挖槽的核心准则，规避断刀、废料与机床共振。","intermediate",false,8,"md",{"src":30,"alt":164,"caption":165},"桦木多层板试切样品","采用保守参数完成的桦木多层板试切件，用于核验边缘光洁度与切削垂直度。","article","zh",{},true,"\u002Fzh\u002Fguides\u002Fcam-toolpath-basics",[172],{"id":173,"title":174},"notes-feeds-01","Laetoly CNC 硬件团队：进给、转速与单刃切削量技术笔记",null,"guides",{"title":5,"description":158},"cam-toolpath-basics","zh\u002Fguides\u002Fcam-toolpath-basics","guides-toolpath-basics","bnCzyd6qF525dMCWpuPpTofW0XCuaZWKCqzt7wzEE2s",{"section":176,"slug":178},{"id":184,"title":185,"body":186,"category":314,"date":157,"description":315,"difficulty":159,"draft":160,"duration":161,"extension":162,"featured":160,"image":316,"layout":166,"locale":319,"meta":320,"navigation":169,"path":321,"references":322,"related":175,"section":176,"seo":325,"slug":178,"status":175,"stem":326,"tags":175,"translationKey":180,"updated":175,"video":175,"__hash__":327},"content\u002Fen\u002Fguides\u002Fcam-toolpath-basics.md","CAM Toolpath Planning & Conservative Feeds",{"type":7,"value":187,"toc":309},[188,194,198,201,205,209,215,220,223,249,253,306],[10,189,191],{"level":12,"title":190},"Conservative First Cuts",[15,192,193],{},"Before the first cut, verify workholding, wear ANSI Z87.1-certified eye protection, keep the E-Stop within reach, and make a test cut in scrap material. Treat the values below as conservative starting points, not a guarantee for every machine or material.",[19,195,197],{"id":196},"why-conservative-defaults-matter","Why Conservative Defaults Matter",[15,199,200],{},"Desktop CNC routers have significantly lower frame stiffness than industrial cast-iron machining centers. Attempting heavy industrial plunge depths or aggressive feed rates will cause tool deflection, chatter marks, stepped edges, or broken carbide bits.",[26,202],{"alt":203,"caption":204,"src":30},"Plywood test piece","Figure 1: Finished test workpiece cut in birch plywood using conservative parameters.",[19,206,208],{"id":207},"key-parameter-formulas","Key Parameter Formulas",[15,210,211,212,214],{},"To calculate your starting feed rate (",[38,213,40],{},") in millimeters per minute:",[15,216,217],{},[38,218,219],{},"F = Spindle RPM × Flutes × Chip Load (mm)",[15,221,222],{},"For a standard 3.175mm (1\u002F8\") 2-flute upcut carbide bit cutting birch plywood or MDF:",[51,224,225,231,237,243],{},[54,226,227,230],{},[38,228,229],{},"Spindle RPM",": 16,000 - 18,000",[54,232,233,236],{},[38,234,235],{},"Flutes",": 2",[54,238,239,242],{},[38,240,241],{},"Target Chip Load",": 0.05 - 0.08 mm\u002Ftooth",[54,244,245,248],{},[38,246,247],{},"Starting Feed Range",": 1,600 - 2,400 mm\u002Fmin",[19,250,252],{"id":251},"recommended-baseline-feeds-speeds","Recommended Baseline Feeds & Speeds",[82,254,256],{"title":255},"Conservative Desktop CNC Starting Baseline for 1\u002F8-inch Bit",[86,257,258,282],{},[89,259,260],{},[92,261,262,265,267,270,273,276,279],{},[95,263,264],{"align":97},"Material",[95,266,229],{"align":97},[95,268,269],{"align":97},"Chip Load (mm\u002Ftooth)",[95,271,272],{"align":97},"Feed Rate (mm\u002Fmin)",[95,274,275],{"align":97},"Plunge Rate (mm\u002Fmin)",[95,277,278],{"align":97},"Max Step-Down",[95,280,281],{"align":97},"Stepover",[118,283,284],{},[92,285,286,291,293,295,297,300,303],{},[123,287,288],{"align":97},[38,289,290],{},"Birch Plywood \u002F MDF",[123,292,130],{"align":97},[123,294,133],{"align":97},[123,296,136],{"align":97},[123,298,299],{"align":97},"400 - 600 (ramp preferred)",[123,301,302],{"align":97},"1.5 mm (≤ 50% tool diameter)",[123,304,305],{"align":97},"40% - 45% tool diameter",[15,307,308],{},"Confirm the result with a scrap-material test and inspect the available toolpath\u002Fmaterial-removal preview before starting a real job. If the machine or material differs from these notes, follow the machine manufacturer's guidance.",{"title":150,"searchDepth":151,"depth":151,"links":310},[311,312,313],{"id":196,"depth":151,"text":197},{"id":207,"depth":151,"text":208},{"id":251,"depth":151,"text":252},"Toolpath","Core principles for generating safe 2D profile cuts and pockets on desktop CNC routers without breaking bits or burning stock.",{"src":30,"alt":317,"caption":318},"Plywood test cut workpiece","Finished test piece in birch plywood to evaluate cut surface finish and edge squareness.","en",{},"\u002Fen\u002Fguides\u002Fcam-toolpath-basics",[323],{"id":173,"title":324},"Laetoly CNC Hardware Team: Feeds, Speeds, and Chip Load Notes",{"title":185,"description":315},"en\u002Fguides\u002Fcam-toolpath-basics","Ff3AlCRQt9fcBtjoT4zssAM4_CYsYOa1fNJ1K2xJG_c",1789009347661]