[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-663743-105":59,"doc-detail-663743-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","the-three-steps-of-tolerance-analysis-white-paper-january-2022","The Three Steps of Tolerance Analysis - White Paper - January 2022","","White paper explains how tolerance control impacts mechanical CAD designs and real manufactured parts, using practical examples such as mounting holes, key alignment, and a microscope fixture. It defines nominal dimensions and symmetric ± tolerance zones, then expands to system-level correctness through tolerance stack-up analysis. The document outlines two analyses—Architecture Tolerance Analysis and Detail Tolerance Analysis—and presents a three-step PSA workflow (Prepare, Stack, Adjust) to guide designers toward reliable, producible outcomes.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/the-three-steps-of-tolerance-analysis-white-paper-january-2022/663743/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/the-three-steps-of-tolerance-analysis-white-paper-january-2022/663743.png","ImageObject",300,407,{"name":92,"@type":93},"Mary Man","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-28",true,{"@type":102,"interactionType":103,"userInteractionCount":14},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What problem does the document focus on when transitioning from CAD to manufactured parts?","Question",{"text":112,"@type":113},"It highlights that uncontrolled tolerances commonly cause real assembly and fit issues after production.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How are tolerances typically specified for a mechanical dimension?",{"text":117,"@type":113},"Tolerances are usually expressed as a symmetric ± tolerance zone, meaning the actual dimension can vary within a defined range around the nominal value.",{"name":119,"@type":110,"acceptedAnswer":120},"Why must designers perform a tolerance stack-up analysis?",{"text":121,"@type":113},"Because multiple parts’ manufacturing errors can add together, potentially making the overall system fall outside the required functional tolerances.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},663743,1793231003,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":14,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":46,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":31},7421720224475,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","WHITE PAPER | JANUARY 2022  \nThe Three Steps of Tolerance Analysis  \nThe Market Leader in Mechatronics and Detailed Design [Services |](Services | simplexitypd.com)[ ](Services | simplexitypd.com)[simplexitypd.com](Services | simplexitypd.com)  \nINTRODUCTION  \nTransforming your mechanical CAD designs into a real and tangible parts is one of the most rewarding feelings as an engineer. However, a lot of things can go wrong during this transition. One of the most common and most overlooked problems are tolerances. Have you ever tried mounting your TV on your wall, but the holes don’t line up perfectly? Or do you have to jiggle your keys every time you open the front door? These issues occur because of poorly controlled tolerances.  \nControlling tolerances is an important part of any designer’s responsibility. In applications like optics, precision motion, drive trains, and plastic enclosures, tolerances become extremely important, and the overall design is essentially dictated by tolerance requirements. In this article, we will walk through stepby-step examples and illuminate the path to good tolerancing in your designs.  \nTOLERANCES  \nMechanical designs and mechanical drawings use a nominal dimension to describe a width, height, depth, diameter, or radius on a part so that the part can be built. A tolerance is associated with each dimension because as designers, we know that the part will never be 100% atomic-level accurate, but instead can be“close enough” within some range of the nominal dimension.  \nTolerances are typically specified using a symmetric ± tolerance zone. This means that when a part is manufactured, the actual dimension can be some distance more or less than the nominal dimension. Imagine you are designing a microscope fixture. The microscope bottom needs to be 6 mm away from the slide, and the focal range is 0.5 mm wide, so the dimension between the microscope and the slide should be 6 ± 0.25 mm. The tolerance of this dimension is the “± 0.25 mm” part which means that the  \nactual measured distance after manufacturing can be 5.75 mm to 6.25 mm. You would likely find this dimension on a list of design requirements determined before design even begins or on the microscope data sheet.  \n1 | The Three Steps of Tolerance Analysis  \nOften tolerances specified in parts are driven by the manufacturing methods available. A larger tolerance zone allows the manufacturer to be less strict in how the design is made, and so the design is said to have a looser tolerance. On the other hand, a tighter tolerance dimension is one that is difficult to achieve because the tolerance zone is so small.  \nA good mechanical drawing is also likely to have more elements than just dimensions and tolerances. In addition to revision tables, notes, and part numbers, drawings also commonly have hole callouts, fitment callouts, and Geometric Dimensioning and Tolerancing (GD&T) symbols to help the manufacturer understand and produce your design. Although these elements are often important in tolerancing, they are beyond the scope of this article.  \nA TOLERANCE “STACK”  \nEven if the production methods allow you to design tight tolerances on a single part, you need to consider the tolerances of all the parts around it to make sure that the overall system functions correctly.  \nLet’s revisit the example of the microscope fixture. Our microscope needs to be held at a specific height above a slide, so we plan to design a microscope stand, a slide holder, and a mounting plate for the parts to be mounted on. We know that the microscope needs to be held 6 ± 0.25 mm away from the top surface of the slide, and we plan to machine the parts using a CNC milling machine which has an accuracy of ± 0.2 mm. The machining tolerance zone is smaller than the required tolerance zone, so no problem, right?  \nWell, actually no. Each of the parts may be 0.2 mm away from what we want. So, if the microscope stand is 0.2 mm taller after machining, and if the slide holder ","cbCaigMcVfhFisnn","https://ap.wps.com/l/cbCaigMcVfhFisnn","pdf",1044934,"English","# Introduction\n# Tolerances\n# A Tolerance \"Stack\"\n# Three Steps (PSA) for Tolerance Analysis","[{\"question\":\"What problem does the document focus on when transitioning from CAD to manufactured parts?\",\"answer\":\"It highlights that uncontrolled tolerances commonly cause real assembly and fit issues after production.\"},{\"question\":\"How are tolerances typically specified for a mechanical dimension?\",\"answer\":\"Tolerances are usually expressed as a symmetric ± tolerance zone, meaning the actual dimension can vary within a defined range around the nominal value.\"},{\"question\":\"Why must designers perform a tolerance stack-up analysis?\",\"answer\":\"Because multiple parts’ manufacturing errors can add together, potentially making the overall system fall outside the required functional tolerances.\"}]","The Three Steps of Tolerance Analysis - White Paper - January 2022 | PDF"]