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Originally Posted by j813
OT. Anyone can please tell me how or what to use for finishing a Delrin material?
Just tried to make some micro jets and there are still rough edges in the Countersank holes also in the micro jets.
Would that need something like a micro grinding stone tool like a dremel? Tried a project knife but no good.
Thanks
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The black parts shown on the attached pictures above are all made of Delrin using 7000 RPM on the spindle and very high feedrates, with cut depths often close to endmill diameter and they all came out perfect without any need for special finishing. I can't figure out why you get rough edges at all.