--- title: Building A Better CNC Hot Wire Foam Cutter | daily.dev description: Michael Rechtin has built a DIY 4-axis CNC hot wire foam cutter designed for precision cutting tasks like airfoils. The machine uses NEMA 17 stepper motors and... canonical: https://daily.dev/posts/building-a-better-cnc-hot-wire-foam-cutter-fgxbsxdjh twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Building A Better CNC Hot Wire Foam Cutter | daily.dev og:description: Michael Rechtin has built a DIY 4-axis CNC hot wire foam cutter designed for precision cutting tasks like airfoils. The machine uses NEMA 17 stepper motors and... og:url: https://daily.dev/posts/building-a-better-cnc-hot-wire-foam-cutter-fgxbsxdjh og:image: https://api.daily.dev/og/posts/FGxbSxdJh.png og:image:alt: Building A Better CNC Hot Wire Foam Cutter og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Building A Better CNC Hot Wire Foam Cutter **[Hackaday](https://daily.dev/sources/hackaday)** · 2 min read · 0 upvotes · 0 comments ## Summary Michael Rechtin has built a DIY 4-axis CNC hot wire foam cutter designed for precision cutting tasks like airfoils. The machine uses NEMA 17 stepper motors and standard 3D printer components, with a g-code-based control board. A pulley-based tensioning mechanism keeps the nickel-chromium wire at optimal tension, and MIG welding tips are used to pass current through the wire. Several 3D-printed parts are included, STL files are provided, and the design collapses for compact storage. The project repository is available on GitHub. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Cutting Steel Gears With Homemade EDM](https://daily.dev/posts/cutting-steel-gears-with-homemade-edm-rr3mp5qap) · Hackaday · 0 upvotes · 0 comments - [Modeling a Felco C12 Wirecutter with Blender](https://daily.dev/posts/modeling-a-felco-c12-wirecutter-with-blender-lu7otndoi) · 80 LEVEL · 0 upvotes · 0 comments - [Building A Metal 3D Printer With A Laser Welder](https://daily.dev/posts/building-a-metal-3d-printer-with-a-laser-welder-bzq5zhdrj) · Hackaday · 0 upvotes · 0 comments - [I 3D printed 8 desk accessories, but these are the ones I actually kept](https://daily.dev/posts/i-3d-printed-8-desk-accessories-but-these-are-the-ones-i-actually-kept-yp7koilz3) · XDA Developers · 0 upvotes · 0 comments - [EnderSpark: Convert Your Broken Creality FDM Printer Into An EDM Machine\!](https://daily.dev/posts/enderspark-convert-your-broken-creality-fdm-printer-into-an-edm-machine--9wmoch3lc) · Hackaday · 0 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/building-a-better-cnc-hot-wire-foam-cutter-fgxbsxdjh) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Building A Better CNC Hot Wire Foam Cutter","url":"https://daily.dev/posts/building-a-better-cnc-hot-wire-foam-cutter-fgxbsxdjh","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/building-a-better-cnc-hot-wire-foam-cutter-fgxbsxdjh"},"datePublished":"2026-07-12T17:29:08.548Z","dateModified":"2026-07-12T17:29:27.675Z","description":"Michael Rechtin has built a DIY 4-axis CNC hot wire foam cutter designed for precision cutting tasks like airfoils. 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