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| THE ENGINEERS SPIRIT LEVEL |
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| Spirit levels are used in the construction industry and by DIY enthusiasts to determine whether a surface is level or vertical. They are a simple instrument, dominated by an air bubble, trapped in ethanol, in a tube of glass. These are often referred to as ‘tubular’ spirit levels, because the fluid and air bubble are trapped within a tube of glass. Spirit levels are used by a range of skilled users, including surveyors, builders, civil engineers and many more. Spirit levels are generally cheap to buy, although those developed for engineering are precision measuring instruments (with high level sensitivity). Their cost reflects the precise engineering involved in their manufacture. |
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| The table of this drilling machine has been set at an angle during a drilling process and returned to horizontal. The engineers spirit level has been used to ensure that the table is exactly level and ready for the next drilling process. |
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| During installation, the level of the is precision CNC lathe is checked, by an engineering using a engineers level. Adjustments are made to the adjustable feet, ensuring the installation is accurate. |
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| BULL’S EYE SPIRIT LEVEL |
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| The Bull’s Eye spirit level is widely used by surveyors and within the construction industry. This type of level is also useful in engineering. It also has the advantage when used on a machine bed, in identifying the ‘level’ of both the ‘X’ and ‘Y’ axis. The process of using the bull’s eye level is called, “centre bubble levelling”. |
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| The bull’s eye spirit level is being used to help set up a vertical miller, so that it’s table is level in both the ‘X’ and ‘Y’ axis. Precision engineering requires machinery to be set up accurately. A poorly ‘set-up’ machine is unlikely to be capable of precision work. |
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