--- title: "Position Guides" slug: "module-position-guides" updated: 2026-02-18T23:11:45Z published: 2026-02-18T23:11:45Z canonical: "docs.kernel.com/module-position-guides" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.kernel.com/llms.txt > Use this file to discover all available pages before exploring further. # Position Guides Position guides are the backbone of a successful DevKit build, ensuring consistent sensor orientation and precise spacing across the flexible cap. You may utilize Kernel’s standardized library or develop custom guides tailored to your specific montage. ### Design Files & Templates The following templates are provided as .DXF reference files. If your workflow requires .PDF, .STEP, or .STL formats, please contact Kernel Support. | DXF file | Image | | --- | --- | | [Single Module Guide.DXF](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/Single%20Module%20Guide.DXF) | ![](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/image-1771444014366.png) | | [3-Module Guide 1.DXF](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/3-Module%20Guide%201.DXF) | ![](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/image-1771453397579.png) | | [3-Module Guide 2.DXF](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/3-Module%20Guide%202.DXF) | ![](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/image-1771443947736.png) | | [Single EEG Guide.DXF](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/Single%20EEG%20Guide.DXF) | ![](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/Screenshot%202026-02-18%20at%2011.52.14%E2%80%AFAM.png) | | [3-EEG Guide 1.DXF](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/3-EEG%20Guide%201.DXF) | ![](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/image-1771444451356.png) | | [3-EEG Guide 2.DXF](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/3-EEG%20Guide%202.DXF) | ![](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/image-1771444434369.png) | | [Kernel Sample Layout 1.DXF](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/Kernel%20Sample%20Layout%201.DXF) | ![](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/image-1771444528575.png) | | [Kernel Sample Layout 2.DXF](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/Kernel%20Sample%20Layout%202.DXF) | ![](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/image-1771444546227.png) | The provided .STEP file is a 3D model of a NIOSH medium reference headform marked with 10-10 layout EEG positions. A 3D print of this file is useful for aligning module or EEG position guides to the desired location(s) before stitching in place. [NIOSH medium 10-10 EEG layout headform.STEP](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/NIOSH%20medium%2010-10%20EEG%20layout%20headform%20(1).STEP) ### Custom Design Specifications If you choose to design your own guides using CAD or 2D vector software, you must adhere to the following mechanical constraints to ensure hardware compatibility: - Minimum Spacing: Maintain a center-to-center distance of at least 50.5mm. - Alignment Tabs: Position adjacent tabs 120° apart. - Stitching Holes: Add holes around the perimeter of each ring. - Sizing should be as small as your needle allows to maximize long-term durability. ![](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/Screen%20Shot%202024-06-13%20at%205.04.37%20PM.png) --- ### Fabrication Once you have finalized your standardized templates or custom designs, the next step is physical fabrication. The choice of material depends on your available fabrication method. - For laser cut position guides, [3/64” Delrin](https://www.mcmaster.com/8575K283/) are suggested. - For guides 3D printed by a 3rd party such as Protolabs, [unfilled MJF PA12](https://www.protolabs.com/services/3d-printing/multi-jet-fusion/) is suggested. - For guides 3D printed on a low-cost filament printer, toughened PLA is suggested. Note that this material is more fragile than the previous two, but still useable if carefully handled. ![](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/Screen%20Shot%202024-06-13%20at%205.10.13%20PM.png) Once printed, mark the outer surface of each guide immediately to maintain intended module orientation. Note that stitching hole size may need to be adjusted based on method – laser cut holes frequently require smaller holes while filament printers require larger. Check the fit of your intended sewing needle before proceeding. ![](https://cdn.document360.io/c97072d7-dbc3-41f6-b55e-b62dbde0527b/Images/Documentation/Screen%20Shot%202024-06-13%20at%205.11.00%20PM.png) ###