{"id":2305,"date":"2026-04-05T07:21:53","date_gmt":"2026-04-04T23:21:53","guid":{"rendered":"https:\/\/jtlcnc.com\/?p=2305"},"modified":"2026-04-05T07:21:54","modified_gmt":"2026-04-04T23:21:54","slug":"how-to-determine-if-the-precision-of-a-granite-equipment-base-meets-the-standard","status":"publish","type":"post","link":"https:\/\/jtlcnc.com\/es\/2026\/04\/05\/how-to-determine-if-the-precision-of-a-granite-equipment-base-meets-the-standard\/","title":{"rendered":"\u00bfC\u00f3mo determinar si la precisi\u00f3n de la base de un equipo de granito cumple la norma?"},"content":{"rendered":"

I. Preliminary Steps: Visual Inspection Quick Screening with Simple Tools (Defects must be aed)<\/p>\n\n\n\n

    \n
  1. Check for Abnormal Appearance
    If any of the following occur, precision is essentially lost:
    Obvious cracks, hidden cracks, chipped corners, or missing pieces
    Local ons, depressions, or impact marks
    Severe scratches or deep grooves on the working surface
    Large-scale discoloration, yellowing, or blackening (caused ong-term oil seepage leading to uneven stress)
    Stone fragmentation or shedding near leveling support points<\/li>\n\n\n\n
  2. Tactile Inspection
    The working surface feels uneven or has a steppedn
    A distinct grainy or burr-like feel when fingers are drawn across it
    Originally smooth precision surfaces become sticky, rough, or gritty<\/li>\n\n\n\n
  3. Preliminary Judgment with Simple LevelStraightedge
    Using a high-precision straightedge feeler gauge:
    The straightedge is pressed against the base; if light transmission is obvious, gaps are large and unevnserting the feeler gauge into the gap yields a value exceeding the equipment’s allowable tolerance
    \u2192 Indicates that flatness is no longer up to standard.<\/li>\n<\/ol>\n\n\n\n

    II. Precision Inspection: Verification of Compliance with Standards (Most Reliable)<\/p>\n\n\n\n

      \n
    1. Flatness Inspection
      Common Tools:
      Electronic level \/ Optical comparator level
      Laser flatness instrument
      Marble straighdge feeler gauge
      Judgment Criteria (Referencing Common Precision Equipment Requirements):
      Ordinary equipment base: Flatness approx. 0.02~0.05 mmsion machine tool \/ measuring equipment base: 0.01~0.02 mm\/m
      Ultra-precision platform: \u22640.005 mm\/m
      After Inspectiasured value > Drawing \/ Equipment Requirement Tolerance \u2192 Precision is unqualified
      Large fluctuations in data from multiple retests \u2192 Base is subject to abnormal stress or deformation<\/li>\n\n\n\n
    2. Pendicularity and Parallelism Inspection
      Tools:
      Right angle square
      Interfer\u00f3metro l\u00e1ser
      Dial indicator \/ Micrometer indicator
      Judgment:
      Perpendicularity between the base and matg surfaces (e.g., guides, columns) exceeds tolerance
      Parallelism of support surfaces on both sides is inconsistent
      \u2192 Directly affects equipment operating precision and is deemed unq.<\/li>\n\n\n\n
    3. Dynamic Stability Judgment (During Operation)
      Observe while the equipment is running:
      Significant changes in precision readings before and after startup
      Obvious drift in flatness \/ level values afteus operation for several hours
      Precision fluctuations exceed standards during cutting or under load
      Indicates that granite base stress has not been fully released or support is inadequate, failing to meet usage ndards.<\/li>\n<\/ol>\n\n\n\n

      III. Inferring Base Precision from Equipment Processing \/ Measurement Results
      This is the most practical method for on-site judgment:
      Unstable dimensions and poor consistency of processed wores
      Workpiece flatness or parallelism exceeds tolerance, and spindle \/ tool issues are ruled out
      Reduced repeatability of coordinate measuring machine and large R value
      Abnormal vibratiooises during equipment operation
      If other component issues are ruled out, it is basically due to unqualified base precision.<\/p>\n\n\n\n

      IV. Simple Summary: When to Determine “Precision Does Not Meetandards”
      Any one of the following conditions warrants a determination:
      Presence of cracks, hidden cracks, or severe impact damage
      Measured values for flatness \/ perpendicularity \/ parallelism exceed drawin tolerances
      Large data drift and poor repeatability in multiple retests
      Equipment processing \/ measurement precision remains unqualified, and other component causes are ruled out
      Unable to achieve requirevelness and geometric precision even after leveling.<\/p>\n\n\n\n

      \"\"<\/figure>","protected":false},"excerpt":{"rendered":"

      I. Preliminary Steps: Visual Inspection Quick Screening with Simple Tools (Defects must be aed) II. Precision Inspection: Verification of Compliance with Standards (Most Reliable) III. Inferring Base Precision from Equipment Processing \/ Measurement ResultsThis is the most practical method for on-site judgment:Unstable dimensions and poor consistency of processed woresWorkpiece flatness or parallelism exceeds tolerance, and…<\/p>","protected":false},"author":1,"featured_media":2308,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[35],"tags":[],"class_list":["post-2305","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"taxonomy_info":{"category":[{"value":35,"label":"NEWS"}]},"featured_image_src_large":["https:\/\/jtlcnc.com\/wp-content\/uploads\/2026\/04\/\u5fae\u4fe1\u56fe\u7247_20260402092028_27_11.jpg",723,505,false],"author_info":{"display_name":"jinxing6611@gmail.com","author_link":"https:\/\/jtlcnc.com\/es\/author\/jtlcnc\/"},"comment_info":0,"category_info":[{"term_id":35,"name":"NEWS","slug":"news","term_group":0,"term_taxonomy_id":35,"taxonomy":"category","description":"","parent":0,"count":119,"filter":"raw","cat_ID":35,"category_count":119,"category_description":"","cat_name":"NEWS","category_nicename":"news","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/posts\/2305","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/comments?post=2305"}],"version-history":[{"count":1,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/posts\/2305\/revisions"}],"predecessor-version":[{"id":2309,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/posts\/2305\/revisions\/2309"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/media\/2308"}],"wp:attachment":[{"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/media?parent=2305"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/categories?post=2305"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/tags?post=2305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}