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 Spectral Line Bar

Spectral Line Bar

Description:  The Spectral Line Bar is a series of Square knots tied in a unique way to produce the wavy design shown above.

The definition of Spectral Line is:   An isolated bright or dark line in a spectrum produced by emission of light of a single wavelength.

So this decorative knot definitely fits the definition in that it has a dark portion and a bright wavelength pattern representing the light.

Paracord is a great material to use when practicing knots, but this design can be made with other materials.  

When using Paracord, make sure you heat and melt the ends to seal in the inner fibers.

This decorative knot was found on the Fusion Knots website -- "Spectrally Clustered Solomon Bar"

The design described below has been slightly altered from the original.

Click on the image or link to visit the site. 

Check out the video gallery, which contains many interesting knot patterns and techniques.

Fusion Knots

Preparation and Base

Step 1:  Cut three cords of different colors, each 2 yards long (for a Spectral Line bar up to 7 inches). 

There should be one dark cord and two bright ones.

Prepare the ends to prevent unraveling. 

Fold Dark Cord

(Optional)  Fold the dark cord in half and slide the ends through a key ring, if you plan to use one.

For a bracelet, belt or other design (no ring), secure the cord with the fold at the top of your board.

Design Tip:  A ring can be used for not only keys.  A clasp for a belt can be made with a ring as well. 

Bring Ends Down

Move the ends down over the front of the ring, and under the folded area.

This is a Larks Head knot, and is only required if you use the Spectral Line Bar as a key ring. 
Cross Ends

Cross the ends of the dark cord, right over left. 

Slide the other two cords (bright) through the area above the crossing point.

The center of the cords should line up with the crossed area.

Step 1, continued:  Move the bright cords down, so the right half passes over the front of the crossed area. 

The left half of the cords should be under the back of it. 

Pull the ends of the dark cord to eliminate any slack.

Left WC

The ends of the dark cord are the working cords.
Move the left working cord to the right, over the four ends of the bright cords. 

Pass it under the right working cord.

Right WC

Move the right working cord under the 4 bright cords, heading left.

Pull it out on the left, passing it over the left working cord.

Tighten the knot firmly by pulling on the ends of the working cord

Pull down on the bright cords, to remove any slack. 

Spectral Line Bar Design

Separate Cords

Step 2:  Separate the bright cords so the ones from the back are to the right

These are considered working cords, along with the black ones.

The bright cords in front are the fillers and should be on the left.

Design Tip:  The Square Knots from this point onward are tied in reverse

So instead of moving the working cords in front of the fillers, they are passed BEHIND them.   

Right to Left

Step 3:  Curve the three working cords on the right towards the left.  

Pass them under the two filler cords.

Make sure the cords are organized so they don't overlap each other. 

Single Dark cord

Step 4:  Move the single dark working cord on the left under the ends of the three working cords. 

Bring it over the fillers and under the curved part of the three working cords on the right.

Important:   When you tighten by pulling on the ends of the working cords, keep them organized so they stay in the same position.  

In this example, black is on the outside with yellow next to it, and then orange on the inside.

Tighten the Spectral Line Bar so the curved portions are the same size, and the cords close together (see next image).

Left to Right

Step 5:  Curve the three working cords to the right, passing them under the fillers.

The colors switch places (orange - yellow - black).  This will always be the case when you move the cords from left to right.

Single Dark Cord

Step 6:  Move the single working cord on the right under the ends of the other three (on the right).

Bring it over the fillers and under the curved portion on the left.

Tighten the knot and keep the cords organized.


Step 7: Repeat steps 3 - 6 several times.

Try to keep all the curved areas the same size as you progress. 

Stop on Step 6

Stop when the Spectral Line Bar is the size you want.

Make sure you stop on Step 6, with the loops on the left.

Finishing Options

Half Knot

To secure the dark cords, move the left one over the fillers and under the right dark cord.

Move the right dark cord under the fillers, then pull it out on the left, over the dark cord.

Move the dark cords to the back and secure them with glue.

The two SHORT bright cords can be cut off, after glue is applied.  These are the cords on the right. 

Melt the tips of these cords with a flame if using Paracord or nylon material.

Here are 3 ways to finish the lower end of the Spectral Line Bar:

Option 1:  The remaining two filler cords are longer than the others and can be used to make a button knot, if you want a clasp.

The best one is the Knife Knot, also called the Diamond knot.

Option 2:  You can add a bead to the two filler cords, to be used as a clasp. 

A button can also be used.  Pass the ends through the shank in opposite directions, then secure it with a finishing knot.

Option 3:  You can finish the ends of the long cords by moving them to the back of the Spectral Line Bar. 

Secure them with fabric glue.  Cut off the excess material when it's dry.

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Have any comments about the Spectral Line Bar? Contact Me.

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