# Minimum setup for tracking and navigation
**URL:** https://discourse.slicer.org/t/minimum-setup-for-tracking-and-navigation/6988
**Category:** Support
**Created:** [June 1, 2019, 3:31pm UTC](https://discourse.slicer.org/t/minimum-setup-for-tracking-and-navigation/6988 "2019-06-01T15:31:35Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@PaoloZaffino](https://discourse.slicer.org/u/PaoloZaffino)
#### Post date: [June 1, 2019, 3:31pm UTC](https://discourse.slicer.org/t/minimum-setup-for-tracking-and-navigation/6988/1 "2019-06-01T15:31:35Z")
Hi all,
I have a question about the integration of Slicer and a tracking/navigation system.
What is the minimum setup (both hardware and software) for running a demo of surgical tools tracking and navigation?
Thanks a lot!
Paolo
---
### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [June 1, 2019, 3:56pm UTC](https://discourse.slicer.org/t/minimum-setup-for-tracking-and-navigation/6988/2 "2019-06-01T15:56:01Z")
To demonstrate the concept only, you can just use a webcam and print 2D barcodes. It won’t be accurate (can have up to centimeters of error), but you don’t need to buy hardware.
For accurate tracking (about a millimeter of total system error), the cheapest device to buy is the [Optitrack Duo](https://www.optitrack.com/products/v120-duo/) for $2300.
There is an open-source electromagnetic tracker ([Anser](https://anser.io/anserlong.html#/)) that you have to assemble and calibrate yourself but probably the material cost is no more than a few hundred $ and probably the error is just a few millimeters.
You can also connect Slicer to existing clinical surgical navigation systems (BrainLab and Medtronic are supported right now).
---
### Author:  [@PaoloZaffino](https://discourse.slicer.org/u/PaoloZaffino)
#### Post date: [June 5, 2019, 8:19am UTC](https://discourse.slicer.org/t/minimum-setup-for-tracking-and-navigation/6988/3 "2019-06-05T08:19:25Z")
Thanks @lassoan!
It is exactly what I was looking for…amazing!
Paolo