> For the complete documentation index, see [llms.txt](https://docs.sevenpens.com/drawtab/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sevenpens.com/drawtab/core/nib-travel.md).
# Nib travel
## Overview
An EMR pen's nib can exhibit more vertical (into the pen) and lateral (towards the side of the pen) physical movement. This is NORMAL and EXPECTED and how the nib is SUPPOSED TO WORK.
## Vertical travel
When you press down on the nib they travels (or retracts) a little bit into the pen. This is NORMAL. If the nib didn't travels at least a little, the pen would not be able to detect pressure.
Some people may refer this as the "nib retraction distance"
How much the nib travels depends on the specific pen involved.
The general consensus is that most people don't want too much retraction because it "feels funny" to use the pen.
A typical nib travel distance for Wacom's pens is about 1mm.
## Lateral travel
The nib has a little extra space in the pen to move laterally (side-to-side) movement.
As you are drawing with a normal tilt, you will push the nib a little to one side depending on how you are pressing down. If you aren't drawing you can use your finger to just play with the nib a little to see this movement.Typically the lateral travel a the tip is about 1 mm.
This is a normal aspect of EMR pens and all pens with nibs have a little lateral movement.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.sevenpens.com/drawtab/core/nib-travel.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.