Raytools BM110 Series User Manual page 17

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As shown below, use a lens removing tool to remove the focus lens mount.
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Remove the spring pressure ring and focusing lens with a lens removing tool.
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Replace or clean the focusing lens.
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As the direction shown below, put the focusing lens and the spring pressure ring in the
lens mount carefully and tighten the pressure ring properly.
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Turn the focusing lens back into the focusing lens mount and tighten it.
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Reassemble and tighten the screws.
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Check the focus position is at the center of nozzle or not. If not, you need to align the
beam.
V1.0
BM110 SERIES (Chinese Model) 3.3KW Auto Focus Laser Cutting Head-User Manual
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