{"id":25023,"date":"2026-10-30T05:59:06","date_gmt":"2026-10-30T05:59:06","guid":{"rendered":"https:\/\/www.mechstream.com\/?p=25023"},"modified":"2026-10-30T06:47:18","modified_gmt":"2026-10-30T06:47:18","slug":"single-part-machining-time-estimator-calculator","status":"publish","type":"post","link":"https:\/\/www.mechstream.com\/ar\/single-part-machining-time-estimator-calculator\/","title":{"rendered":"Single Part Machining Time Estimator Calculator"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The <strong>Single Part Machining Time Estimator Calculator<\/strong> helps machinists and production planners estimate how long it takes to complete one part. Enter cutting time, operation count, setup time, tool changes, and handling time to get an estimated total and a clear breakdown. Use this calculator to support job planning, compare process steps, and improve production scheduling. Actual machining time may vary depending on the machine, material, tooling, cutting parameters, and operator workflow.<\/p>\n\n\n\n<iframe class=\"smt-frame skip-lazy no-lazyload\" data-no-lazy=\"1\" data-skip-lazy=\"1\" title=\"Single-Part Machining Time Estimator\" scrolling=\"no\" style=\"display:block !important;width:100% !important;max-width:1000px !important;height:820px;border:0 !important;margin:0 auto !important;padding:0 !important;overflow:hidden;background:transparent;float:none !important\" srcdoc=\"&lt;!DOCTYPE html&gt;&#10;&lt;html lang=&quot;en&quot;&gt;&#10;&lt;head&gt;&#10;&lt;meta charset=&quot;UTF-8&quot;&gt;&#10;&lt;meta name=&quot;viewport&quot; content=&quot;width=device-width, initial-scale=1&quot;&gt;&#10;&lt;title&gt;Single-Part Machining Time Estimator&lt;\/title&gt;&#10;&lt;style&gt;&#10;\/* =====================================================================&#10;   Single-Part Machining Time Estimator \u2014 all selectors scoped under&#10;   .smt-root so the calculator never changes how the rest of a page looks.&#10; 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 .smt-root .smt-row{grid-template-columns:repeat(2,minmax(0,1fr))}&#10;  .smt-root .smt-pct-track{display:none}&#10;}&#10;@media (max-width:560px){&#10;  .smt-root{padding:20px 12px 28px;border-radius:0}&#10;  .smt-root .smt-card{padding:16px}&#10;  .smt-root .smt-row{grid-template-columns:minmax(0,1fr)}&#10;  .smt-root .smt-total-side{text-align:left}&#10;  .smt-root .smt-table th,.smt-root .smt-table td{padding:9px 6px}&#10;}&#10;@media (prefers-reduced-motion:reduce){&#10;  .smt-root *{transition:none !important}&#10;}&#10;html,body{margin:0;padding:0;background:transparent}&#10;&lt;\/style&gt;&#10;&lt;\/head&gt;&#10;&lt;body&gt;&#10;&#10;&lt;div class=&quot;smt-root&quot; id=&quot;smt-app&quot;&gt;&#10;  &lt;div class=&quot;smt-stack&quot;&gt;&#10;&#10;    &lt;!-- ================= INPUT PANEL ================= --&gt;&#10;    &lt;section class=&quot;smt-card&quot; aria-label=&quot;Machining time inputs&quot;&gt;&#10;&#10;      &lt;form id=&quot;smt-form&quot; novalidate autocomplete=&quot;off&quot;&gt;&#10;&#10;        &lt;!-- Process &amp; cutting --&gt;&#10;        &lt;fieldset class=&quot;smt-group&quot;&gt;&#10;          &lt;legend&gt;Process &amp;amp; Cutting&lt;\/legend&gt;&#10;          &lt;div class=&quot;smt-row&quot;&gt;&#10;            &lt;div class=&quot;smt-field&quot;&gt;&#10;              &lt;label for=&quot;smt-process&quot;&gt;Machining Process&lt;\/label&gt;&#10;              &lt;select id=&quot;smt-process&quot; class=&quot;smt-select&quot;&gt;&#10;                &lt;option value=&quot;Turning&quot;&gt;Turning&lt;\/option&gt;&#10;                &lt;option value=&quot;Milling&quot;&gt;Milling&lt;\/option&gt;&#10;                &lt;option value=&quot;Drilling&quot;&gt;Drilling&lt;\/option&gt;&#10;                &lt;option value=&quot;Grinding&quot;&gt;Grinding&lt;\/option&gt;&#10;                &lt;option value=&quot;Other&quot;&gt;Other&lt;\/option&gt;&#10;              &lt;\/select&gt;&#10;            &lt;\/div&gt;&#10;&#10;            &lt;div class=&quot;smt-field&quot;&gt;&#10;              &lt;label for=&quot;smt-cut&quot;&gt;Cutting Time per Operation&lt;\/label&gt;&#10;              &lt;div class=&quot;smt-inline&quot;&gt;&#10;                &lt;input id=&quot;smt-cut&quot; class=&quot;smt-input&quot; type=&quot;text&quot; inputmode=&quot;decimal&quot; aria-describedby=&quot;smt-cut-err smt-cut-help&quot;&gt;&#10;                &lt;select id=&quot;smt-cut-unit&quot; class=&quot;smt-select smt-unit&quot; aria-label=&quot;Cutting time unit&quot;&gt;&#10;                  &lt;option value=&quot;s&quot;&gt;sec&lt;\/option&gt;&#10;                  &lt;option value=&quot;min&quot;&gt;min&lt;\/option&gt;&#10;                &lt;\/select&gt;&#10;              &lt;\/div&gt;&#10;              &lt;p class=&quot;smt-err&quot; id=&quot;smt-cut-err&quot; hidden&gt;&lt;\/p&gt;&#10;              &lt;p class=&quot;smt-help&quot; id=&quot;smt-cut-help&quot;&gt;Spindle-engaged time for one operation.&lt;\/p&gt;&#10;            &lt;\/div&gt;&#10;&#10;            &lt;div class=&quot;smt-field&quot;&gt;&#10;              &lt;label for=&quot;smt-ops&quot;&gt;Number of Operations&lt;\/label&gt;&#10;              &lt;input id=&quot;smt-ops&quot; class=&quot;smt-input&quot; type=&quot;text&quot; inputmode=&quot;numeric&quot; aria-describedby=&quot;smt-ops-err smt-ops-help&quot;&gt;&#10;              &lt;p class=&quot;smt-err&quot; id=&quot;smt-ops-err&quot; hidden&gt;&lt;\/p&gt;&#10;              &lt;p class=&quot;smt-help&quot; id=&quot;smt-ops-help&quot;&gt;Whole number, 1 or more.&lt;\/p&gt;&#10;            &lt;\/div&gt;&#10;          &lt;\/div&gt;&#10;        &lt;\/fieldset&gt;&#10;&#10;        &lt;!-- Setup &amp; tooling --&gt;&#10;        &lt;fieldset class=&quot;smt-group&quot;&gt;&#10;          &lt;legend&gt;Setup &amp;amp; Tooling&lt;\/legend&gt;&#10;          &lt;div class=&quot;smt-row&quot;&gt;&#10;            &lt;div class=&quot;smt-field&quot;&gt;&#10;              &lt;label for=&quot;smt-setup&quot;&gt;Setup Time per Part &lt;span class=&quot;smt-opt&quot;&gt;(optional)&lt;\/span&gt;&lt;\/label&gt;&#10;              &lt;div class=&quot;smt-inline&quot;&gt;&#10;                &lt;input id=&quot;smt-setup&quot; class=&quot;smt-input&quot; type=&quot;text&quot; inputmode=&quot;decimal&quot; aria-describedby=&quot;smt-setup-err smt-setup-help&quot;&gt;&#10;                &lt;select id=&quot;smt-setup-unit&quot; class=&quot;smt-select smt-unit&quot; aria-label=&quot;Setup time unit&quot;&gt;&#10;                  &lt;option value=&quot;s&quot;&gt;sec&lt;\/option&gt;&#10;                  &lt;option value=&quot;min&quot;&gt;min&lt;\/option&gt;&#10;                &lt;\/select&gt;&#10;              &lt;\/div&gt;&#10;              &lt;p class=&quot;smt-err&quot; id=&quot;smt-setup-err&quot; hidden&gt;&lt;\/p&gt;&#10;              &lt;p class=&quot;smt-help&quot; id=&quot;smt-setup-help&quot;&gt;Batch setup divided by parts, if amortized.&lt;\/p&gt;&#10;            &lt;\/div&gt;&#10;&#10;            &lt;div class=&quot;smt-field&quot;&gt;&#10;              &lt;label for=&quot;smt-tct&quot;&gt;Tool Change Time &lt;span class=&quot;smt-opt&quot;&gt;(optional)&lt;\/span&gt;&lt;\/label&gt;&#10;              &lt;div class=&quot;smt-inline&quot;&gt;&#10;                &lt;input id=&quot;smt-tct&quot; class=&quot;smt-input&quot; type=&quot;text&quot; inputmode=&quot;decimal&quot; aria-describedby=&quot;smt-tct-err smt-tct-help&quot;&gt;&#10;                &lt;select id=&quot;smt-tct-unit&quot; class=&quot;smt-select smt-unit&quot; aria-label=&quot;Tool change time unit&quot;&gt;&#10;                  &lt;option value=&quot;s&quot;&gt;sec&lt;\/option&gt;&#10;                  &lt;option value=&quot;min&quot;&gt;min&lt;\/option&gt;&#10;                &lt;\/select&gt;&#10;              &lt;\/div&gt;&#10;              &lt;p class=&quot;smt-err&quot; id=&quot;smt-tct-err&quot; hidden&gt;&lt;\/p&gt;&#10;              &lt;p class=&quot;smt-help&quot; id=&quot;smt-tct-help&quot;&gt;Time for one tool change.&lt;\/p&gt;&#10;            &lt;\/div&gt;&#10;&#10;            &lt;div class=&quot;smt-field&quot;&gt;&#10;              &lt;label for=&quot;smt-tcn&quot;&gt;Number of Tool Changes&lt;\/label&gt;&#10;              &lt;input id=&quot;smt-tcn&quot; class=&quot;smt-input&quot; type=&quot;text&quot; inputmode=&quot;numeric&quot; aria-describedby=&quot;smt-tcn-err smt-tcn-help&quot;&gt;&#10;              &lt;p class=&quot;smt-err&quot; id=&quot;smt-tcn-err&quot; hidden&gt;&lt;\/p&gt;&#10;              &lt;p class=&quot;smt-help&quot; id=&quot;smt-tcn-help&quot;&gt;Whole number, 0 or more.&lt;\/p&gt;&#10;            &lt;\/div&gt;&#10;          &lt;\/div&gt;&#10;        &lt;\/fieldset&gt;&#10;&#10;        &lt;!-- Handling --&gt;&#10;        &lt;fieldset class=&quot;smt-group&quot;&gt;&#10;          &lt;legend&gt;Handling&lt;\/legend&gt;&#10;          &lt;div class=&quot;smt-row&quot;&gt;&#10;            &lt;div class=&quot;smt-field&quot;&gt;&#10;              &lt;label for=&quot;smt-load&quot;&gt;Loading &amp;amp; Unloading Time &lt;span class=&quot;smt-opt&quot;&gt;(optional)&lt;\/span&gt;&lt;\/label&gt;&#10;              &lt;div class=&quot;smt-inline&quot;&gt;&#10;                &lt;input id=&quot;smt-load&quot; class=&quot;smt-input&quot; type=&quot;text&quot; inputmode=&quot;decimal&quot; aria-describedby=&quot;smt-load-err smt-load-help&quot;&gt;&#10;                &lt;select id=&quot;smt-load-unit&quot; class=&quot;smt-select smt-unit&quot; aria-label=&quot;Loading and unloading time unit&quot;&gt;&#10;                  &lt;option value=&quot;s&quot;&gt;sec&lt;\/option&gt;&#10;                  &lt;option value=&quot;min&quot;&gt;min&lt;\/option&gt;&#10;                &lt;\/select&gt;&#10;              &lt;\/div&gt;&#10;              &lt;p class=&quot;smt-err&quot; id=&quot;smt-load-err&quot; hidden&gt;&lt;\/p&gt;&#10;              &lt;p class=&quot;smt-help&quot; id=&quot;smt-load-help&quot;&gt;Clamping, part removal and reloading.&lt;\/p&gt;&#10;            &lt;\/div&gt;&#10;&#10;            &lt;div class=&quot;smt-field&quot;&gt;&#10;              &lt;label for=&quot;smt-insp&quot;&gt;Inspection \/ Handling Time &lt;span class=&quot;smt-opt&quot;&gt;(optional)&lt;\/span&gt;&lt;\/label&gt;&#10;              &lt;div class=&quot;smt-inline&quot;&gt;&#10;                &lt;input id=&quot;smt-insp&quot; class=&quot;smt-input&quot; type=&quot;text&quot; inputmode=&quot;decimal&quot; aria-describedby=&quot;smt-insp-err smt-insp-help&quot;&gt;&#10;                &lt;select id=&quot;smt-insp-unit&quot; class=&quot;smt-select smt-unit&quot; aria-label=&quot;Inspection or handling time unit&quot;&gt;&#10;                  &lt;option value=&quot;s&quot;&gt;sec&lt;\/option&gt;&#10;                  &lt;option value=&quot;min&quot;&gt;min&lt;\/option&gt;&#10;                &lt;\/select&gt;&#10;              &lt;\/div&gt;&#10;              &lt;p class=&quot;smt-err&quot; id=&quot;smt-insp-err&quot; hidden&gt;&lt;\/p&gt;&#10;              &lt;p class=&quot;smt-help&quot; id=&quot;smt-insp-help&quot;&gt;Measuring, deburring, moving parts.&lt;\/p&gt;&#10;            &lt;\/div&gt;&#10;          &lt;\/div&gt;&#10;        &lt;\/fieldset&gt;&#10;&#10;        &lt;div class=&quot;smt-actions&quot;&gt;&#10;          &lt;button type=&quot;submit&quot; class=&quot;smt-btn&quot; id=&quot;smt-btn-calc&quot;&gt;Calculate&lt;\/button&gt;&#10;        &lt;\/div&gt;&#10;      &lt;\/form&gt;&#10;    &lt;\/section&gt;&#10;&#10;    &lt;!-- ================= RESULTS PANEL ================= --&gt;&#10;    &lt;section class=&quot;smt-card&quot; aria-labelledby=&quot;smt-results-title&quot; id=&quot;smt-results&quot; tabindex=&quot;-1&quot; hidden&gt;&#10;      &lt;div class=&quot;smt-card-title&quot;&gt;&lt;h2 id=&quot;smt-results-title&quot;&gt;Results&lt;\/h2&gt;&lt;\/div&gt;&#10;&#10;      &lt;div class=&quot;smt-alert&quot; id=&quot;smt-error&quot; role=&quot;alert&quot; hidden&gt;&lt;\/div&gt;&#10;&#10;      &lt;div id=&quot;smt-result-body&quot; aria-live=&quot;polite&quot;&gt;&#10;        &lt;div class=&quot;smt-total&quot;&gt;&#10;          &lt;div&gt;&#10;            &lt;span class=&quot;smt-total-label&quot;&gt;Estimated Time per Part&lt;\/span&gt;&#10;            &lt;div class=&quot;smt-total-value&quot; id=&quot;smt-r-total&quot;&gt;&lt;\/div&gt;&#10;            &lt;div class=&quot;smt-total-sub&quot; id=&quot;smt-r-total-sec&quot;&gt;&lt;\/div&gt;&#10;          &lt;\/div&gt;&#10;          &lt;div class=&quot;smt-total-side&quot;&gt;&#10;            Process&#10;            &lt;strong id=&quot;smt-r-process&quot;&gt;&lt;\/strong&gt;&#10;          &lt;\/div&gt;&#10;        &lt;\/div&gt;&#10;&#10;        &lt;div class=&quot;smt-bar&quot; id=&quot;smt-r-bar&quot; role=&quot;img&quot; aria-label=&quot;Time breakdown bar&quot;&gt;&lt;\/div&gt;&#10;&#10;        &lt;div class=&quot;smt-table-wrap&quot;&gt;&#10;          &lt;table class=&quot;smt-table&quot;&gt;&#10;            &lt;caption class=&quot;smt-help&quot; style=&quot;caption-side:top;text-align:left;margin:0 0 4px&quot;&gt;Time breakdown per part&lt;\/caption&gt;&#10;            &lt;thead&gt;&#10;              &lt;tr&gt;&lt;th scope=&quot;col&quot;&gt;Component&lt;\/th&gt;&lt;th scope=&quot;col&quot;&gt;Seconds&lt;\/th&gt;&lt;th scope=&quot;col&quot;&gt;Min : Sec&lt;\/th&gt;&lt;th scope=&quot;col&quot;&gt;Share&lt;\/th&gt;&lt;\/tr&gt;&#10;            &lt;\/thead&gt;&#10;            &lt;tbody id=&quot;smt-r-rows&quot;&gt;&lt;\/tbody&gt;&#10;            &lt;tfoot&gt;&#10;              &lt;tr&gt;&lt;td&gt;Total&lt;\/td&gt;&lt;td id=&quot;smt-r-ft-s&quot;&gt;&lt;\/td&gt;&lt;td id=&quot;smt-r-ft-m&quot;&gt;&lt;\/td&gt;&lt;td&gt;100%&lt;\/td&gt;&lt;\/tr&gt;&#10;            &lt;\/tfoot&gt;&#10;          &lt;\/table&gt;&#10;        &lt;\/div&gt;&#10;&#10;        &lt;p class=&quot;smt-note&quot;&gt;This result is an estimate. Actual machining time may vary with the machine, material, tooling, cutting parameters and operator workflow.&lt;\/p&gt;&#10;      &lt;\/div&gt;&#10;    &lt;\/section&gt;&#10;&#10;  &lt;\/div&gt;&#10;&lt;\/div&gt;&#10;&#10;&lt;script&gt;&#10;\/* =====================================================================&#10;   Single-Part Machining Time Estimator \u2014 Vanilla JavaScript (no globals)&#10;   All times are converted to seconds before calculating.&#10;   ===================================================================== *\/&#10;(function () {&#10;  &#x27;use strict&#x27;;&#10;&#10;  var root = document.getElementById(&#x27;smt-app&#x27;);&#10;  if (!root || root.getAttribute(&#x27;data-smt-ready&#x27;) === &#x27;1&#x27;) return;&#10;  root.setAttribute(&#x27;data-smt-ready&#x27;, &#x27;1&#x27;);&#10;&#10;  function $(id) { return document.getElementById(id); }&#10;&#10;  var TO_SEC = { s: 1, min: 60 };&#10;  var TIME_KEYS = [&#x27;cut&#x27;, &#x27;setup&#x27;, &#x27;tct&#x27;, &#x27;load&#x27;, &#x27;insp&#x27;];&#10;  var ALL_KEYS = [&#x27;cut&#x27;, &#x27;ops&#x27;, &#x27;setup&#x27;, &#x27;tct&#x27;, &#x27;tcn&#x27;, &#x27;load&#x27;, &#x27;insp&#x27;];&#10;  var LABEL = {&#10;    cut: &#x27;Cutting time per operation&#x27;, ops: &#x27;Number of operations&#x27;, setup: &#x27;Setup time per part&#x27;,&#10;    tct: &#x27;Tool change time&#x27;, tcn: &#x27;Number of tool changes&#x27;, load: &#x27;Loading &amp; unloading time&#x27;,&#10;    insp: &#x27;Inspection \/ handling time&#x27;&#10;  };&#10;  var COLORS = { cut: &#x27;#1d4ed8&#x27;, setup: &#x27;#0f766e&#x27;, tool: &#x27;#b45309&#x27;, load: &#x27;#7c3aed&#x27;, insp: &#x27;#64748b&#x27; };&#10;&#10;  \/* ---------- parsing &amp; formatting ---------- *\/&#10;  \/** Accepts &quot;1,5&quot; (decimal comma), &quot;1,000.5&quot; and plain numbers. *\/&#10;  function parseNum(raw) {&#10;    var s = String(raw == null ? &#x27;&#x27; : raw).trim().replace(\/\\s+\/g, &#x27;&#x27;);&#10;    if (s === &#x27;&#x27;) return { empty: true, ok: false };&#10;    if (\/^[+-]?\\d{1,3}(,\\d{3})+(\\.\\d+)?$\/.test(s)) s = s.replace(\/,\/g, &#x27;&#x27;);&#10;    else if (\/^[+-]?\\d*,\\d+$\/.test(s)) s = s.replace(&#x27;,&#x27;, &#x27;.&#x27;);&#10;    if (!\/^[+-]?(\\d+\\.?\\d*|\\.\\d+)(e[+-]?\\d+)?$\/i.test(s)) return { empty: false, ok: false };&#10;    var n = Number(s);&#10;    if (!isFinite(n)) return { empty: false, ok: false };&#10;    return { empty: false, ok: true, n: n };&#10;  }&#10;&#10;  function num(n, d) {&#10;    return n.toLocaleString(&#x27;en-US&#x27;, { minimumFractionDigits: 0, maximumFractionDigits: d == null ? 2 : d });&#10;  }&#10;&#10;  \/** Seconds \u2192 &quot;1 h 05 min 30 s&quot; \/ &quot;13 min 30 s&quot; \/ &quot;45.5 s&quot; *\/&#10;  function readable(sec) {&#10;    var r = Math.round(sec * 10) \/ 10;           \/\/ tenth-of-a-second precision&#10;    var h = Math.floor(r \/ 3600);&#10;    var m = Math.floor((r - h * 3600) \/ 60);&#10;    var s = Math.round((r - h * 3600 - m * 60) * 10) \/ 10;&#10;    var sStr = (s % 1 === 0 ? String(s) : s.toFixed(1)) + &#x27; s&#x27;;&#10;    if (h &gt; 0) return num(h, 0) + &#x27; h &#x27; + m + &#x27; min &#x27; + sStr;&#10;    if (m &gt; 0) return m + &#x27; min &#x27; + sStr;&#10;    return sStr;&#10;  }&#10;  \/** Seconds \u2192 &quot;mm:ss&quot; (minutes can exceed 59) *\/&#10;  function mmss(sec) {&#10;    var r = Math.round(sec);&#10;    var m = Math.floor(r \/ 60), s = r % 60;&#10;    return num(m, 0) + &#x27;:&#x27; + (s &lt; 10 ? &#x27;0&#x27; : &#x27;&#x27;) + s;&#10;  }&#10;  function esc(s) {&#10;    return String(s).replace(\/[&amp;&lt;&gt;&quot;&#x27;]\/g, function (c) {&#10;      return { &#x27;&amp;&#x27;: &#x27;&amp;amp;&#x27;, &#x27;&lt;&#x27;: &#x27;&amp;lt;&#x27;, &#x27;&gt;&#x27;: &#x27;&amp;gt;&#x27;, &#x27;&quot;&#x27;: &#x27;&amp;quot;&#x27;, &quot;&#x27;&quot;: &#x27;&amp;#39;&#x27; }[c];&#10;    });&#10;  }&#10;&#10;  \/* ---------- validation ---------- *\/&#10;  function setErr(key, msg) {&#10;    var el = $(&#x27;smt-&#x27; + key), er = $(&#x27;smt-&#x27; + key + &#x27;-err&#x27;);&#10;    if (msg) {&#10;      el.classList.add(&#x27;smt-invalid&#x27;); el.setAttribute(&#x27;aria-invalid&#x27;, &#x27;true&#x27;);&#10;      er.textContent = msg; er.hidden = false;&#10;    } else {&#10;      el.classList.remove(&#x27;smt-invalid&#x27;); el.removeAttribute(&#x27;aria-invalid&#x27;);&#10;      er.textContent = &#x27;&#x27;; er.hidden = true;&#10;    }&#10;  }&#10;  function clearAllErrors() { ALL_KEYS.forEach(function (k) { setErr(k, null); }); }&#10;&#10;  \/** Returns an error message for one field, or null when valid. *\/&#10;  function check(key) {&#10;    var p = parseNum($(&#x27;smt-&#x27; + key).value);&#10;    if (p.empty) {&#10;      if (key === &#x27;cut&#x27;) return &#x27;Enter the cutting time per operation.&#x27;;&#10;      if (key === &#x27;ops&#x27;) return &#x27;Enter the number of operations.&#x27;;&#10;      return null;                                  \/\/ optional fields: blank = 0&#10;    }&#10;    if (!p.ok) return &#x27;Enter a valid number.&#x27;;&#10;    if (p.n &lt; 0) return &#x27;Value cannot be negative.&#x27;;&#10;    if (key === &#x27;ops&#x27;) {&#10;      if (p.n === 0) return &#x27;Must be at least 1 operation.&#x27;;&#10;      if (p.n % 1 !== 0) return &#x27;Must be a whole number.&#x27;;&#10;    }&#10;    if (key === &#x27;tcn&#x27; &amp;&amp; p.n % 1 !== 0) return &#x27;Must be a whole number.&#x27;;&#10;    if (key === &#x27;cut&#x27; &amp;&amp; p.n === 0) return &#x27;Cutting time must be greater than zero.&#x27;;&#10;    return null;&#10;  }&#10;  function val(key) {&#10;    var p = parseNum($(&#x27;smt-&#x27; + key).value);&#10;    return p.empty ? 0 : p.n;&#10;  }&#10;&#10;  \/* ---------- calculation ---------- *\/&#10;  function compute() {&#10;    clearAllErrors();&#10;    var errs = [];&#10;    ALL_KEYS.forEach(function (k) {&#10;      var msg = check(k);&#10;      if (msg) { setErr(k, msg); errs.push(LABEL[k] + &#x27;: &#x27; + msg); }&#10;    });&#10;    if (errs.length) { showErrors(errs); return false; }&#10;&#10;    var sec = {};&#10;    TIME_KEYS.forEach(function (k) { sec[k] = val(k) * TO_SEC[$(&#x27;smt-&#x27; + k + &#x27;-unit&#x27;).value]; });&#10;    var ops = val(&#x27;ops&#x27;), tcn = val(&#x27;tcn&#x27;);&#10;&#10;    var parts = [&#10;      { key: &#x27;cut&#x27;,   name: &#x27;Cutting&#x27;,            v: sec.cut * ops,  sub: ops + &#x27; \u00d7 &#x27; + readable(sec.cut) },&#10;      { key: &#x27;setup&#x27;, name: &#x27;Setup&#x27;,              v: sec.setup,      sub: &#x27;&#x27; },&#10;      { key: &#x27;tool&#x27;,  name: &#x27;Tool changes&#x27;,       v: sec.tct * tcn,  sub: tcn + &#x27; \u00d7 &#x27; + readable(sec.tct) },&#10;      { key: &#x27;load&#x27;,  name: &#x27;Loading \/ unloading&#x27;, v: sec.load,      sub: &#x27;&#x27; },&#10;      { key: &#x27;insp&#x27;,  name: &#x27;Inspection \/ handling&#x27;, v: sec.insp,    sub: &#x27;&#x27; }&#10;    ];&#10;    var total = parts.reduce(function (a, p) { return a + p.v; }, 0);&#10;&#10;    if (!isFinite(total)) {&#10;      showErrors([&#x27;The total is too large to calculate. Check the size of your inputs.&#x27;]);&#10;      return false;&#10;    }&#10;    render(total, parts, $(&#x27;smt-process&#x27;).value);&#10;    return true;&#10;  }&#10;&#10;  \/* ---------- rendering ---------- *\/&#10;  function showErrors(errs) {&#10;    var box = $(&#x27;smt-error&#x27;);&#10;    box.innerHTML = &#x27;&lt;strong&gt;Please correct the following input&#x27; + (errs.length &gt; 1 ? &#x27;s&#x27; : &#x27;&#x27;) + &#x27;:&lt;\/strong&gt;&lt;ul&gt;&#x27; +&#10;      errs.map(function (e) { return &#x27;&lt;li&gt;&#x27; + esc(e) + &#x27;&lt;\/li&gt;&#x27;; }).join(&#x27;&#x27;) + &#x27;&lt;\/ul&gt;&#x27;;&#10;    box.hidden = false;&#10;    $(&#x27;smt-result-body&#x27;).hidden = true;&#10;  }&#10;&#10;  function render(total, parts, process) {&#10;    $(&#x27;smt-error&#x27;).hidden = true;&#10;    $(&#x27;smt-result-body&#x27;).hidden = false;&#10;&#10;    $(&#x27;smt-r-total&#x27;).textContent = readable(total);&#10;    $(&#x27;smt-r-total-sec&#x27;).textContent = num(total, 1) + &#x27; seconds  \u00b7  &#x27; + num(total \/ 60, 2) + &#x27; minutes&#x27;;&#10;    $(&#x27;smt-r-process&#x27;).textContent = process;&#10;&#10;    var bar = &#x27;&#x27;, rows = &#x27;&#x27;, aria = [];&#10;    parts.forEach(function (p) {&#10;      var pct = total &gt; 0 ? (p.v \/ total) * 100 : 0;&#10;      var pctTxt = pct &gt; 0 &amp;&amp; pct &lt; 0.1 ? &#x27;&lt;0.1%&#x27; : num(pct, 1) + &#x27;%&#x27;;&#10;      if (pct &gt; 0) bar += &#x27;&lt;span style=&quot;width:&#x27; + pct + &#x27;%;background:&#x27; + COLORS[p.key] + &#x27;&quot;&gt;&lt;\/span&gt;&#x27;;&#10;      aria.push(p.name + &#x27; &#x27; + pctTxt);&#10;      rows += &#x27;&lt;tr&gt;&lt;td&gt;&lt;span class=&quot;smt-swatch&quot; style=&quot;background:&#x27; + COLORS[p.key] + &#x27;&quot;&gt;&lt;\/span&gt;&#x27; + esc(p.name) +&#10;        (p.sub &amp;&amp; p.v &gt; 0 ? &#x27;&lt;span class=&quot;smt-comp-sub&quot;&gt;&#x27; + esc(p.sub) + &#x27;&lt;\/span&gt;&#x27; : &#x27;&#x27;) + &#x27;&lt;\/td&gt;&#x27; +&#10;        &#x27;&lt;td&gt;&#x27; + num(p.v, 1) + &#x27;&lt;\/td&gt;&lt;td&gt;&#x27; + mmss(p.v) + &#x27;&lt;\/td&gt;&#x27; +&#10;        &#x27;&lt;td&gt;&lt;div class=&quot;smt-pct&quot;&gt;&lt;span&gt;&#x27; + pctTxt + &#x27;&lt;\/span&gt;&lt;span class=&quot;smt-pct-track&quot; aria-hidden=&quot;true&quot;&gt;&#x27; +&#10;        &#x27;&lt;span class=&quot;smt-pct-fill&quot; style=&quot;display:block;width:&#x27; + pct + &#x27;%;background:&#x27; + COLORS[p.key] + &#x27;&quot;&gt;&lt;\/span&gt;&lt;\/span&gt;&lt;\/div&gt;&lt;\/td&gt;&lt;\/tr&gt;&#x27;;&#10;    });&#10;    $(&#x27;smt-r-bar&#x27;).innerHTML = bar;&#10;    $(&#x27;smt-r-bar&#x27;).setAttribute(&#x27;aria-label&#x27;, &#x27;Time breakdown: &#x27; + aria.join(&#x27;, &#x27;));&#10;    $(&#x27;smt-r-rows&#x27;).innerHTML = rows;&#10;    $(&#x27;smt-r-ft-s&#x27;).textContent = num(total, 1);&#10;    $(&#x27;smt-r-ft-m&#x27;).textContent = mmss(total);&#10;  }&#10;&#10;  \/* ---------- form helpers ---------- *\/&#10;  function fill(d) {&#10;    $(&#x27;smt-process&#x27;).value = d.process;&#10;    ALL_KEYS.forEach(function (k) { $(&#x27;smt-&#x27; + k).value = d[k]; });&#10;    TIME_KEYS.forEach(function (k) { $(&#x27;smt-&#x27; + k + &#x27;-unit&#x27;).value = d[k + &#x27;Unit&#x27;]; });&#10;  }&#10;  function reset() {&#10;    fill({ process: &#x27;Turning&#x27;, cut: &#x27;&#x27;, cutUnit: &#x27;s&#x27;, ops: &#x27;1&#x27;, setup: &#x27;&#x27;, setupUnit: &#x27;s&#x27;,&#10;           tct: &#x27;&#x27;, tctUnit: &#x27;s&#x27;, tcn: &#x27;0&#x27;, load: &#x27;&#x27;, loadUnit: &#x27;s&#x27;, insp: &#x27;0&#x27;, inspUnit: &#x27;s&#x27; });&#10;    clearAllErrors();&#10;    $(&#x27;smt-results&#x27;).hidden = true;&#10;  }&#10;&#10;  \/* ---------- events ---------- *\/&#10;  root.addEventListener(&#x27;input&#x27;, function (e) {&#10;    var t = e.target;&#10;    if (!t.classList || !t.classList.contains(&#x27;smt-input&#x27;)) return;&#10;    var key = t.id.replace(&#x27;smt-&#x27;, &#x27;&#x27;);&#10;    if (t.classList.contains(&#x27;smt-invalid&#x27;) &amp;&amp; !check(key)) setErr(key, null);&#10;  });&#10;&#10;  function run() {&#10;    var res = $(&#x27;smt-results&#x27;), first = res.hidden;&#10;    res.hidden = false;&#10;    var ok = compute();&#10;    if (!ok) {&#10;      var bad = root.querySelector(&#x27;.smt-invalid&#x27;);&#10;      if (bad) bad.focus();&#10;    } else if (first &amp;&amp; res.scrollIntoView) {&#10;      res.scrollIntoView({ behavior: &#x27;smooth&#x27;, block: &#x27;nearest&#x27; });&#10;    }&#10;  }&#10;&#10;  $(&#x27;smt-form&#x27;).addEventListener(&#x27;submit&#x27;, function (e) { e.preventDefault(); run(); });&#10;&#10;  reset();&#10;})();&#10;&lt;\/script&gt;&#10;&lt;script&gt;&#10;\/* Auto-fit height when embedded in an iframe (WordPress) *\/&#10;(function () {&#10;  var f = null;&#10;  try { f = window.frameElement; } catch (e) { f = null; }&#10;  if (!f) return;&#10;  var root = document.getElementById(&#x27;smt-app&#x27;);&#10;  function fit() {&#10;    var h = Math.ceil((root || document.body).getBoundingClientRect().height);&#10;    if (h &gt; 0) f.style.setProperty(&#x27;height&#x27;, h + &#x27;px&#x27;, &#x27;important&#x27;);&#10;  }&#10;  fit();&#10;  if (window.ResizeObserver) new ResizeObserver(fit).observe(root || document.body);&#10;  window.addEventListener(&#x27;load&#x27;, fit);&#10;  window.addEventListener(&#x27;resize&#x27;, fit);&#10;  setTimeout(fit, 300);&#10;})();&#10;&lt;\/script&gt;&#10;&lt;\/body&gt;&#10;&lt;\/html&gt;&#10;\"><\/iframe>\n","protected":false},"excerpt":{"rendered":"<p>The Single Part Machining Time Estimator Calculator helps machinists and production planners estimate how long it takes to complete one part. 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