Divide a line into equal parts

Divide a line into equal parts

Dividing a line the hip way


Dividing a line into parts with drafting tools.

Diagram (A)  shows the age-old technique to divide a line into any number of segments.  You need a ruler (or tape measure) a good bit longer than the line to divide, to give you multiple options. I use a table edge to run the T-square along, but while you can use a clear drafting square… accuracy is more difficult.  Why not use calculator? Well the second method does just that, but using a ruler and square is fast, and can be less tedious for craftspersons.

  1. Place your piece (green) away from the table edge but in reach of the T-square.
  2. Draw outer lines (black arrows to AB) with the T-square up to the outer ends of the line (AB) to divide.
  3. Pivot a ruler (down from blue line) until the closest multiple of your number of segments (7 segments here) lines up with your outer lines.It could have been 7, 14, 21 etc, depending on the width of piece AB. You may need to move your piece back further, if your ruler comes off the table.
  4. Mark lines on the table, then remove the ruler and  continue them up to the piece, and mark the piece.  Voila!

Dividing a line into equal parts the nerdy way.

  1. Whip out calculator, with panache.
  2. Measure Line AB and divide the result by  your number  of segments (here: 7)
  3. Enter this segment length in the calculator and add it into (M+) memory (Say it was 1.53)
  4. Then enter your segment length + MR and mark (or write down) the result: (Then you’d have 3.06 for example (1.53 + 1.53))
  5. Each time to enter + MR, +MR, +MR you’ll have the next point to mark. Sweet. (1.53, 3.06, 4.59, 6.12… for example)

But! Here’s why you might be a little nerdy, or un-american for this technique to work.
To actually mark your points on the line, you need any one of the following:

  • An  engineers rule, with 50th or 100th divisions, and to find .97 on the rule you need to have super-thick glasses.  OR
  • A decimal inch rule, with 1oth divisions and a good imagination. OR
  • A copy of my English Fractional, Decimal & Metric Conversion Chart, an English rule and patience.
  • OR, last and not leastA Metric rule ! like any of those used in 192 of the 195 countries of the world.  Besides, Liberia, Myanmar and the good ol’ U.S.A.
  • I own all of those, so that makes me … the author.

Dividing a line into equal parts by cheating.

In Adobe Illustrator or some superior CAD Program:

CAD: Select your given line and click Divide by Number of Segments, Enter #, Hit return.  Pat yourself on back for knowing CAD.

Adobe Illustrator: Oh boy, here we go: