How to Attach a Parallel Straight Edge to a Drafting Board

Written by carol reeves
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Floor plans and construction documents that are drafted by hand are drawn with various drafting equipment. Architects and designers use parallel straight edges on drafting boards or drafting tables to help them draw their plans. Parallel straight edges help to draw lines that are straight and parallel with each other. This helps to keep the drawings looking clean and readable. The parallel straight edge is often preferred over the T-square because the architect or designer can lock the parallel straight edge in place, giving them the freedom to use both of their hands to draft.

Skill level:
Moderately Easy

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Things you need

  • Parallel straight edge
  • Drafting board or drafting table
  • Drill
  • 3/32" drill bit
  • Phillips head screwdriver

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Instructions

  1. 1

    Position the parallel straight edge on the drafting board or drafting table. Install the knob and washer on both ends of the parallel straight edge but do not tighten them. Install the side guides on the parallel straight edge on both sides if the parallel straight edge is the full length of the drafting board or table. The side guides are not needed if the parallel straight edge is smaller then the length of the table.

  2. 2

    Place the corner plates that came with the parallel straight edge on the top corner edges of the drafting board or table. Mark the holes with a pencil. Drill 3/32" pilot holes with the drill. Screw in the corner plates with the Phillips head screw driver using the screws that came with the parallel straight edge.

  3. 3

    Install the cable clamp that came with the parallel straight edge onto the left corner plate. Thread the cable through the clamp and around the corner plate wheel.

  4. 4

    Place the stedge stop that came with the parallel straight edge on the bottom edge of the drafting board or table on both sides. Ensure that the cable is parallel with the sides of the drafting board or table. Mark the holes with a pencil. Drill 3/32" pilot holes with the drill. Insert the cable through the stedge stop and screw the stedge stop to the drafting board or table with the Phillips head screwdriver.

  5. 5

    Pull the cable on the right side first to remove any slack in the cable and tighten the stedge stop. Ensure that the parallel straight edge is parallel with the bottom edge of the drafting board or table. Pull the cable tight on the left to remove slack in the cable and tighten the stedge stop.Ensure that the cable is parallel with the sides of the drafting board or table.

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