If you know your tablet drivers are updated and your pressure sensitivity is not working randomly, try checking your brush settings. Here are some of the easiest and more basic ways to fix pen-pressure sensitivity in PaintTool SAI. 5 Basic PaintTool SAI Pen Pressure Sensitivity Fixes While some styles do call for consistent lineart width, having limited pen pressure sensitivity can make digital drawing a nightmare, and will limit the type of artwork you are able to make. When your pen pressure sensitivity does not work, your lines will all look like this: This allows you to create flowing, dynamic linework with tapered edges. Pen Pressure sensitivity allows you to change the width of your stroke through the amount of pressure applied through your tablet pen. For Wacom, tablets click Remove under All User Preferences. Change your settings to TabletMouseSimulation = 1 in Misc settings.Open Help > Options (If you are using V.1 of PaintTool SAI, this will be located in Others > Options and set Click Detection Pressure to 0.Make sure your tablet drivers are updated and delete old ones from your hard drive.Try the basic fixes first such as restarting PaintTool SAI, your tablet, or your computer.Check the Min Size of your brush settings and make sure it is less than 100%.

Set “Minimum Pressure” or “Click Detection Pressure” to 0 5 Advanced PaintTool SAI Pen Pressure Sensitivity Fixes.5 Basic PaintTool SAI Pen Pressure Sensitivity Fixes.

Paint tool sai pen brush