Sand Packing Help Please!

Discussion in 'Sand Casting' started by Chief Filipino, Jun 19, 2019.

  1. HT1

    HT1 Gold Banner Member

    if you make a pattern that size out of Brass you should not need to Pull it, Double roll the mold, and it will be sitting on your cope when you spit the Mold , and you can pick the pattern up

    I may need to do In instructional post later


    V/r HT1
     
    Chief Filipino likes this.
  2. Melterskelter

    Melterskelter Gold Banner Member

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  3. The draft is usually expressed as an angle. I like 2 degrees or even 4 degrees. More is better. For something 5 mm thick that translates to 1/3 mm offset for 4 deg. So it doesn’t take much.

    It is all taken off of one side. You could scribe a line 1/2 mm from the edge and file to it.
     
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