Reed Calculator
On the Project Menu
What It Does
This function helps establish a sleying pattern with the desired reed to accomplish the needed Sett for the project. In addition, the reed and sley pattern that is chosen is saved along with your project for future reference.
Using the Reed Calculator
Units
Select Imperial if working in inches, or Metric if working in increments of 10 centemeters, the standard for metric reeds.
Reed Dents per Unit
To set the reed size, the number of dents (spaces) per unit (inch or 10 cm) may be entered or set using the arrow keys.
Alternatively, the reed size will be changed to the selected Preset Pattern, if used.
Preset Patterns
Tables are built into TempoWeave with a number of commonly used reed-sley patterns.
In the following example, the preset pattern arrow has been clicked and a scrolling list of options, ordered alphabetically by reed, has sley patterns and the resulting Sett. This example is Imperial units.
If a pattern is selected, and enter pressed, the values for the Reed Dents per Unit and the Custom Sley Pattern are populated from the selected preset.
In the next example, the units are set to Metric. Now the pattern presets are showing Metric Reeds. This makes it simple for a weavers working in Imperial units to use a metric reed, and visa-versa.Here the 50/10 metric reed is selected and a sleying pattern of 1-2; once the Calculate button is pressed, the Ends per Inch and Ends per CM is calculated and displayed in green.
Custom Sley Pattern
Numbers can be typed into the Custom Sley pattern. To skip a dent, use number 0. The numbers represent a repeating pattern for the sleying of the warp threads into each dent. The repeating pattern can be from 1 dent to 10.
Once the pattern is entered, click Calculate and the ends per inch / ends per cm will be calculated based on the Reed Dents per unit and the sley pattern. In the following example, the reed has 8 dents per inch, and an alternating 2 threads in 1 dent, 3 threads in the next is entered; after Calculate is pressed, it reveals that this pattern and reed combination will have 20 ends per inch / 7.87 ends per cm.
Using the Reed Calculator for Cram and Dent
Another usage of this tool is to calculate the average ends per inch when using the "cram and dent" technique. In the example below, two warp ends are sleyed in a dent, skipping the next, putting 4 ends in the next dent and skipping a dent for an effective 15 epi in a 10-dent reed.
Important - Project Sett and Calculated Values
The Sett that you define in Project Setup is independent of the calculated sett derived and saved in the Reed Sley Calculator. Be sure that you update the Project Sett on the Project Setup Screen if the sett is changing based on the reed and sley pattern chosen; normally these should be the same. The Project Sett is the value used in calculations throughout TempoWeave.
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