It’s normal for a scroll saw to vibrate, thanks to the rapid movements of the blade. Ideally, your scroll saw should feel something like a sewing machine in terms of vibration while in use on average materials. However, if your scroll saw is vibrating excessively, leaving you with tingling or numb hands, or is “walking” along your workbench due to the vibrations, there are some steps you can take to get things under control.  The first step you should take is to check that your saw blades are properly installed. Then make sure your scroll saw is firmly screwed down to your workbench; an unsecured scroll saw is prone to more vibration than normal, and might even move itself along your workbench, potentially leading to disaster.  If both of those steps check out, the next step is to check your tool’s counterweight. This will be near the base of the tool, and might be on the front or on the back, depending on the brand. If your saw doesn’t have a counterweight, you can add weight yourself with a small sandbag, dumbbell plate, or other heavy item that can be balanced at the base of the saw without interfering in any way with the blade action.  Another trick for dampening excessive vibration is placing a rubber mat, about the thickness of a mouse pad, underneath your scroll saw. You can even glue rubber “shock absorbers” under the legs of your workbench, which helps reduce vibration from all of your power tools.  If none of the above tips help, it is possible that your technique is causing the excessive vibrations. Running the saw too slowly, holding the material you are cutting too firmly on the saw, or pushing the material rather than letting the saw do the work for you all can add to the tool’s normal vibration level.