<p>It appears to refer to calibration factor called <em>Width over Thickness</em>. </p>

<p>From <a href="http://www.thingiverse.com/thing:52946" rel="nofollow noreferrer">Calibrate your 3D printer to print parts to fit</a></p>

<blockquote>
  <p>Here is the list of necessary variables for this calibration to work,</p>
  
  <ul>
  <li>Carve/Extra Decimal Places (float) : change to 5</li>
  <li>Carve/Edge Width over Height (ratio) : nozzle diameter/layer height</li>
  <li>Inset/Infill <strong>Width over Thickness</strong> (ratio) : nozzle diameter/layer height (initially)</li>
  <li>Dimension/Filament Packing Density (ratio) : needs calibration (equivalent to the reciprocal of the extrusion multiplier in Slic3r)</li>
  <li>Scale/XY Plane Scale (ratio) : needs calibration</li>
  </ul>
</blockquote>

CC BY-SA 3.0
2017-02-08T05:51:10.987Z
2017-02-08T05:51:10.987Z
Greenonline
<p>I have seen a few guides mentioning <em>w/t ratio</em> but I can't find anything which defines it.  </p>

<p>I am using Simplify3D with a Wanhao i3.</p>

CC BY-SA 3.0
2017-02-08T05:51:00.973Z
Can you put the question into a context? What is the ratio referring to? A printer? Filament? Software? Presumably, you are referring to guides about Simplify 3D? Can you edit your question and provide links to, and quotes from, these guides, showing where _w/t_ is used?
Greenonline
<simplify3d>
What is a w/t ratio?
Vellocet
# What is a w/t ratio?

(Asked by: username_0 on 2017-02-08)

I have seen a few guides mentioning *w/t ratio* but I can't find anything which defines it.

I am using Simplify3D with a Wanhao i3.

**Tags:** simplify3d
> **Comments:**
> **username_1**: Can you put the question into a context? What is the ratio referring to? A printer? Filament? Software? Presumably, you are referring to guides about Simplify 3D? Can you edit your question and provide links to, and quotes from, these guides, showing where _w/t_ is used?  

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## 1 answers

### Answer by username_1 on 2017-02-08. Score: 2 | Accepted answer

It appears to refer to calibration factor called *Width over Thickness*.

From [Calibrate your 3D printer to print parts to fit](http://www.thingiverse.com/thing:52946)

> Here is the list of necessary variables for this calibration to work,
>
> * Carve/Extra Decimal Places (float) : change to 5
> * Carve/Edge Width over Height (ratio) : nozzle diameter/layer height
> * Inset/Infill **Width over Thickness** (ratio) : nozzle diameter/layer height (initially)
> * Dimension/Filament Packing Density (ratio) : needs calibration (equivalent to the reciprocal of the extrusion multiplier in Slic3r)
> * Scale/XY Plane Scale (ratio) : needs calibration


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