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equipment:metalshop:granitesurfaceplate [2023/02/08 13:27] – drew | equipment:metalshop:granitesurfaceplate [2024/11/19 21:42] (current) – external edit 127.0.0.1 | ||
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=====Granite Surface Plate - 450mm x 300mm ===== | =====Granite Surface Plate - 450mm x 300mm ===== | ||
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A granite surface plate is a fundamental reference used in metrology for measuring parts accurately and for marking out of parts prior to precision machining. | A granite surface plate is a fundamental reference used in metrology for measuring parts accurately and for marking out of parts prior to precision machining. | ||
- | This Granite Surface plate is Grade AA, this is the highest grade of surface plate, it is flat to within 1 micron, (Or Half-anatstesticle | + | This Granite Surface plate is Grade AA, this is the highest grade of surface plate, it is flat to within 1 micron, (Or Half-anantstesticle |
This is over spec for our needs! Grade B would normally be used on the shop floor - Grade AA is for Laboratory use for calibration of test equipment. | This is over spec for our needs! Grade B would normally be used on the shop floor - Grade AA is for Laboratory use for calibration of test equipment. |