Homemade Soap Cutter

Written by amma marfo
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Homemade Soap Cutter
Homemade soaps can be any colour or fragrance. (Herbal Soap image by Andreja Donko from Fotolia.com)

Making homemade soap can be relatively easy, but cutting soap can be a little trickier and time-consuming without the proper tools. A standard-size soap cutter can come in handy so long as you are making soap "loafs" which are no wider than four inches. You can make a homemade soap cutter simply and cheaply in very little time and, once the glue is dry, you will be ready to cut soap into one-inch-thick slices, or bars, as you feed the soap loaf through the cutter.

Skill level:
Moderately Easy

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Things you need

  • Wooden board 1-by-6-inch size, 16 inches long
  • Tape measure
  • Pencil
  • Four pieces of 1-inch thick wood, cut to 3-by-3-inch pieces
  • Wood glue
  • 2-by-2-inch wood block, 2 to 3 inches long
  • Metal cutting blade

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  1. 1

    Lay your wooden board out on a flat surface. Measure in 2 inches from one end and draw a line across the width of the board. From this line, measure in another inch and draw a second line across the width of the board. Measure in 1/8 inch from this last line to mark a third and final line across the board.

  2. 2

    Place one 3-by-3-inch block on each side of the marked end of your board. Adjust the blocks so they stand upright and are flush with both the end of the board and with the second marked line--remember, this line should be 3 inches from the end. Use wood glue to secure the blocks to the board.

  3. 3

    Place the other two 3-inch blocks, standing upright, on either side of the board, set so the edges of the new boards are flush with the third line. This should put a 1/8-inch gap between the new blocks and the glued blocks. Glue these blocks to the board as well. Your entire soap "loaf" should be able to fit on top of the board and slide down the 4-inch wide channel between your upright blocks on both sides.

  4. 4

    Create a stop for your soap "loaf" by aligning the final block horizontally over the end of the board between your first set of side blocks. Orient your block so the inner edge of it stops at the first drawn line on your board. Glue the block in place and allow all of your glue to dry over the next three to four hours before using the frame.

  5. 5

    Cut bars of soap by putting the soap loaf onto the board and sliding it between the upright blocks. Push the loaf all the way to the end of the board until it hits the stop block on the end. Slide the cutting blade down through the 1/8-inch gap into the soap to cut a one inch thick bar. Remove the bar and slide the loaf down to the stop to continue to cut bars until all of your loaf is cut.

Tips and warnings

  • Let the individual bars of soap cure in a warm, dry room for a few days after cutting before wrapping them up.
  • If you are going to be making a soap loaf larger than four inches wide, then you'll need to make a cutter starting with a wooden board which is the width of your loaf, plus two inches.

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