Making cheap end mills with rebar and RCTs

Discussion in 'Tools' started by bazmak, Jan 22, 2018.

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  1. Jan 22, 2018 #1

    bazmak

    bazmak

    bazmak

    BAZMAK

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    With the weather heating up and therefore spendind less time in the shed
    i decided to take a break from the Simplex and try a simple job
    I have made and posted a thread on homemade endmills and of all my cutting tools for mill found certain ones to work really well and being used all the time
    My 16mm dia one i use a lot and when it broke i had to make a new one
    I also posted a thread on using free rebar as a cheap alternative to HT steel
    I made 2 new cutters both 20mm shank and 18 and 21mm dia end mill 01.jpg

    end mill 02.jpg

    end mill 03.jpg

    end mill 04.jpg

    end mill 05.jpg

    end mill 06.JPG https://www.youtube.com/watch?v=mks5aWDfQ_M

    end mill 07.jpg ,selecting a couple
    of carbide tips that seemed suitable.Successful so far and the photos tell the story.Hopefully 2 short videos at the end showing them working on Alum
    time will tell on mild steel
     
    Last edited: Jan 22, 2018
    miglincit and kadora like this.
  2. Jan 22, 2018 #2

    bazmak

    bazmak

    bazmak

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    [ame]https://www.youtube.com/watch?v=RVS2LkDg-is[/ame]
     
  3. Jan 22, 2018 #3

    bazmak

    bazmak

    bazmak

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    [ame]https://www.youtube.com/watch?v=mks5aWDfQ_M[/ame]
     
  4. Jan 22, 2018 #4

    DJP

    DJP

    DJP

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    Nicely done. I have made many lathe cutters using carbide inserts so a milling cutter makes sense too. I have also found that carbide inserts can be sharpened using a green wheel for extra life. As long as you are saving money you might as well economize on inserts too.
     
  5. Jan 22, 2018 #5

    bazmak

    bazmak

    bazmak

    BAZMAK

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    I have a diamond wheel to sharpen tips and extend the life
    as an apprentice when tips were new on the block we were
    told that you could not sharpen carbide tips without losing the cutting rake
    now we know different.With a light touch the cutting edge can be improved
    to cut and the tip rad reduced to a sharp edge.Makes chipping more likely
    with intermediate cuts.Cutting the rebar was a piece cake but i did chip
    a tip and had to grind a couple of times
     

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