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Home Xometry Community Manufacturing Minimum letter size for raised text on SLS nylon parts

Minimum letter size for raised text on SLS nylon parts

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m
4

I’m working on a medical device enclosure that needs raised lettering (product name and serial number) on the lid, printed in SLS nylon. The letters are around 2 mm high with a stroke width of about 0.4 mm.

Has anyone tried something similar? Do raised letters at that size stay legible and durable after sterilization cycles (like autoclaving), or would it be better to go with engraved text instead? I hope you can help.

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    • m

      I’m working on a medical device enclosure that needs raised lettering (product name and serial number) on the lid, printed in SLS nylon. The letters are around 2 mm high with a stroke width of about 0.4 mm.

      Has anyone tried something similar? Do raised letters at that size stay legible and durable after sterilization cycles (like autoclaving), or would it be better to go with engraved text instead? I hope you can help.

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      Reply
    • j

      There are quite a few guidelines out there for lettering with SLS, so I would suggest you go and look for one to refer to get all your details right. Personally, I think your font size seems way too small for SLS. Generally, nothing smaller than 14pt (about 5mm) is recommended. Bigger would be better. Your line thickness should not be less than 0.5mm.

      Recessed text tends to have better resolution than raised text, so if you’re trying to keep it small, that might be a better option (but still not as small as 2mm!). If I understand correctly, this recessed format appears to work better with serif fonts rather than sans-serif.

      Vertical orientation in the build envelope gives better resolution than horizontal orientation.

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Minimum letter size for raised text on SLS nylon parts
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