--- title: Finish Turning the OD of an Interrupted Cut Plastic Part description: EMI Evans Machine Co Inc | Part of the Week | CNC Milling | CNC Turning | Delrin | Horizontal Turning | Tight Tolerance image: https://emievans.com/hubfs/POW%202%20Image-1.png --- - \*\*\*  [**EMI is Hiring**](https://emievans.com/careers) and offering a [**Signing Bonus!**](https://emievans.com/careers)  See our open roles on the [**Careers Page**](https://emievans.com/careers).  We can't wait to meet you!  \*\*\* - \*\*\*  [**EMI is Hiring**](https://emievans.com/careers) and offering a [**Signing Bonus!**](https://emievans.com/careers)  See our open roles on the [**Careers Page**](https://emievans.com/careers).  We can't wait to meet you!  \*\*\* [![EMI Evans Machine Co Inc.](https://emievans.com/hs-fs/hubfs/EMI%20LOGOS/EMI%20Logo%20PNG%20(360%20x%20144%2072%20DPI)%20Transparent%20Cropped.png?width=218&height=84&name=EMI%20Logo%20PNG%20(360%20x%20144%2072%20DPI)%20Transparent%20Cropped.png "EMI Evans Machine Co Inc.")](https://emievans.com/) [![EMI Evans Machine Co Inc.](https://emievans.com/hs-fs/hubfs/EMI%20LOGOS/EMI%20Logo%20PNG%20(360%20x%20144%2072%20DPI)%20Transparent%20Cropped.png?width=218&height=84&name=EMI%20Logo%20PNG%20(360%20x%20144%2072%20DPI)%20Transparent%20Cropped.png "EMI Evans Machine Co Inc.")](https://emievans.com/) [![EMI Evans Machine Co Inc.](https://emievans.com/hs-fs/hubfs/EMI%20LOGOS/EMI%20Logo%20PNG%20(360%20x%20144%2072%20DPI)%20Transparent%20Cropped.png?width=218&height=84&name=EMI%20Logo%20PNG%20(360%20x%20144%2072%20DPI)%20Transparent%20Cropped.png "EMI Evans Machine Co Inc.")](https://emievans.com/) This is a search field with an auto-suggest feature attached. - 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- - - - [Home](https://emievans.com/) \> - [Blog & News](https://emievans.com/blog-news) \>   This beauty is our Part of the Week. Let's take a look!   ## WHAT'S THIS? In this short video we're **horizontal turning** an **interrupted length** of **food grade Delrin plastic**.   Shavings. Not snow. ## THAT'S COOL! The part previously had a number of operations performed before what we're seeing here. One tricky part of this is that **maintaining the part's straightness despite the volume of missing material** in the center is always a challenge. Fortunately, **EMI regularly performs this sort of trick so our team was up to the challenge**. In addition, we needed to **maintain the integrity of the edges of the interrupted cuts** while finishing the outer surface for **both smoothness and dimensional accuracy**. You can see from the very fine, thinner-than-hair white threads of removed material that our machinist took time and care to make the result **perfect down to only a few thousandths of an inch**. ABOUT POW! Each week we will feature something we've been working on. We hope you'll find these posts informative. --- ## REPOST TO SHARE If you think your compadres would find this interesting then click one of the social media icons at the top (on the right, just under the post title). [![Tell Us About Your Next Project](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/242414204/interactive-270683937509.png)](https://emievans.com/hs/cta/wi/redirect?encryptedPayload=AVxigLJYgnuyTJzJEN8VbPh3XJCKClCa9Av06Jbvbq6mKgbo0hqHa7aQ2cJYIQXKqvaF9Lx%2BilqAvqA%2BD%2F7NaAdzVkvhcJrssTLzRC%2FfMBR44hJdM9LrafUF9OoEzwQzUhl3JfBqAbAEbPjBWRezBX2BKT05WXYz9OaKZwW645TMOk4EjxTV&webInteractiveContentId=270683937509&portalId=242414204) #PrecisionMachining #MachineShop #ProductionMachining #Manufacturing #CNCMilling #CNCTurning #CNCLathe #HorizontalTurning #TightTolerance #Quality #Delrin #NaturalDelrin #MachiningPlastic *No. 20 of N* #### About the author Adam Persson [Follow me on LinkedIn](https://www.linkedin.com/in/adampersson/) Adam handles sales & marketing for EMI and brings a passion for creating long term win-win B2B relationships with customers. When he's not at work he can be found chasing after his three kids, two dogs and one cat, or smashing his thumb with a hammer while working on home renovations. Topics:   [CNC Milling](https://emievans.com/blog-news/tag/cnc-milling) ,   [Plastics](https://emievans.com/blog-news/tag/plastics) ,   [Part of the Week](https://emievans.com/blog-news/tag/part-of-the-week) ,   [CNC Turning](https://emievans.com/blog-news/tag/cnc-turning) [\< Previous Post](https://emievans.com/blog-news/making-mixtures-smooth-as-silk-stainless-steel-industrial-mixing-rotors) [Next Post \>](https://emievans.com/blog-news/turning-a-feed-nozzle-with-machined-helix) Recent posts [Come See EMI at the Design-2-Part Show](https://emievans.com/blog-news/come-see-emi-at-the-design-2-part-show) [Sad News Today & A Commitment For Tomorrow](https://emievans.com/blog-news/sad-news-today-a-commitment-for-tomorrow) [Putting It All On the Line (Card)](https://emievans.com/blog-news/putting-it-all-on-the-line-card) [Found! A Moment of Beauty on the Shop Floor](https://emievans.com/blog-news/found-a-moment-of-beauty-on-the-shop-floor) [Swiss (But Not Cheese or Cuckoo Clocks)](https://emievans.com/blog-news/swiss-but-not-cheese-or-cuckoo-clocks) [![EMI Evans Machine Co Inc.](https://emievans.com/hs-fs/hubfs/EMI%20LOGOS/EMI%20Logo%20PNG%20(360%20x%20144%2072%20DPI)%20Transparent%20Cropped.png?width=244&height=94&name=EMI%20Logo%20PNG%20(360%20x%20144%2072%20DPI)%20Transparent%20Cropped.png "EMI Evans Machine Co Inc.")](https://emievans.com/) **Evans Machine Co., Inc.** 32 N. Manchester St. Brockton, MA 02302 [508-584-8085](tel:1-508-584-8085) ### Quick Links - [Capabilities & Services](https://emievans.com/capabilities-services) - [Industries](https://emievans.com/industries) - [Quality Assurance](https://emievans.com/quality-assurance) - [Line Cards](https://emievans.com/hubfs/CAPABILITIES%20and%20SERVICES/EQUIPMENT%20and%20FACILITIES/EMI%20Line%20Cards%20(All%203)%20-%20for%20Buyers%20Engineers%20%26%20Quality%20Folks.pdf) - [Testimonials](https://emievans.com/testimonials) - [Our Story](https://emievans.com/our-story) - [Careers](https://emievans.com/careers) ### EMI is... Based in Brockton, MA and family-owned since 1968, EMI helps **Advanced Manufacturers** with **outsourced production** so they can **WIN by being the best partner to their Customers**. Our broad range of **more than 50 of the latest CNC precision machines**, and our assembly and other value-added services, helps our customers **expand their manufacturing capabilities on demand**. **With EMI, Advanced Manufacturers can focus on their core mission**, knowing they are backed by a world-class outsourcing partner. Our promise: **[“More than Parts: Partnership.”](https://emievans.com/brand-statement)** © 2026 Evans Machine Company, Inc. All rights reserved.  |  [Certifications & Accreditations](https://emievans.com/certifications-accreditations)  |  Cage Code #6Y843 ![LOGO TRIO - EMI ITAR ISO (2032 x 422 px) CROPPED MIN](https://emievans.com/hs-fs/hubfs/LOGO%20TRIO%20-%20EMI%20ITAR%20ISO%20(2032%20x%20422%20px)%20CROPPED%20MIN.png?width=1016&height=211&name=LOGO%20TRIO%20-%20EMI%20ITAR%20ISO%20(2032%20x%20422%20px)%20CROPPED%20MIN.png) [Follow us on LinkedIn](https://www.linkedin.com/company/evans-machine-co) [Follow us on Facebook](https://www.facebook.com/people/Evans-Machine-Co-Inc/61579693362816/) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Adam Persson", "url" : "https://emievans.com/blog-news/author/adam-persson" }, "dateModified" : "2026-01-06T15:48:08.822Z", "datePublished" : "2025-09-15T18:00:00.000Z", "headline" : "Finish Turning the OD of an Interrupted Cut Plastic Part", "image" : [ "https://emievans.com/hubfs/POW%202%20Image-1.png" ], "mainEntityOfPage" : { "@id" : "https://emievans.com/blog-news/finish-turning-the-od-of-an-interrupted-cut-plastic-part", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://emievans.com/hubfs/EMI%20LOGOS/EMI%20Logo%20PNG%20(360%20x%20144%2072%20DPI)%20Transparent%20Cropped.png" }, "name" : "Evans Machine Company" } } ``` ```json { "@context" : "https://schema.org", "@type" : "VideoObject", "contentUrl" : "https://242414204.fs1.hubspotusercontent-na2.net/hubfs/242414204/video_assets/289934996191/inherited/web_optimized.mp4", "dateModified" : "2026-01-07T14:52:07.592Z", "duration" : "PT32.797S", "height" : 1080, "name" : "IMG_0533", "thumbnailUrl" : "https://emievans.com/hubfs/ABOUT/Blog%20Post%20Assets/IMG_0533.mov/medium.jpg", "uploadDate" : "2026-01-06T15:44:11.904Z", "width" : 1920 } ```