Traditional bushing 8x15x45mm (LM8LUU)

Traditional bushing for 8mm rods. Long version.
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Summary: Don't use MoS2 grease for printed bushings, it's a fail. PTFE spray can oil works with PETG bushings if wiped dry after saturation. I have not tested silicon based or lithium based lubricants. I did look for graphite dry lubricant spray as a first choice but I did not find any in my vicinity so I chose PTFE spray can oil instead and as previously stated it seems to work if wiped dry after saturation.
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