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  1. jpfabricator

    jpfabricator United States Active User H-M Supporter-Premium

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    I have a chunk of delrin on its way that's destin to become a bushing.
    Are there any secrets/or pitfalls I should be aware of? Thanks in advance.

    Sent from my SM-S320VL using Tapatalk
     
  2. firestopper

    firestopper H-M Supporter - Premium Content H-M Supporter-Premium

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    City:
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    Delrin machines like a dream. I made plenty of bushings from delrin that have lasted. The swarf is easy to clean up (bonus).
     
  3. chips&more

    chips&more United States Active User Active Member

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    VERY easy to machine!
     
  4. Groundhog

    Groundhog United States H-M Supporter - Premium Content H-M Supporter-Premium

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    I use a stream of air to clear chips and for cooling, not necessary though.
     
  5. grzdomagala

    grzdomagala Austria Iron Registered Member

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    Not 100% sure (could be i incorrectly identified the material) but reamers do not work.

    Wysłane z mojego GT-N7100 przy użyciu Tapatalka
     
  6. Tony Wells

    Tony Wells United States Vice President Staff Member Administrator

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    Spiral reamers seem to do better, but boring is the way to go on Delrin. Straight flutes just push it into a polygonal shape then when you remove the reamer it springs back. It helps if the reamer is razor sharp though.

    Jake, you'll love it.
     
    FLguy likes this.
  7. Randall Marx

    Randall Marx United States H-M Supporter - Premium Content H-M Supporter-Premium

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    City:
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    I love Delrin for machining! Sharp tools with lots of rake seem to be the key while keeping speeds moderate so the temp stays low.
     
  8. Ulma Doctor

    Ulma Doctor Infinitely Curious H-M Supporter-Premium

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    if you work delrin too hard, it will release formaldehyde and smell really bad
    it makes excellent low speed, moderate load bushings.
    it is a pleasure to machine delrin in any form
     
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