A dampener I made for the Artillery/Evnovo Sidewinder X1 that uses a squash ball to dampen the vibrations. I have great results with this and modest speed, jerk and acceleration, it allows me to print small zig-zags without it affecting the surface quality.
Requirements & Instructions:
You need 4 squash balls in total with 2 yellow dots, the hardest ones (SB 990). Print 4 of the dampeners and push a squash ball in the hole of each one. Now slide the dampeners over the stock rubber feet of the SWX1, that's it.
I made this in Fusion360 and I've added the source file so you can easily improve or modify the design to your needs.
0.4 with a 0.8mm nozzle, 0.32 with a 0.4mm nozzle
Print with the hemishphere pointing down, no need to rotate the model. You need supports to hold up the middle part. Add a brim as well to add more adhesion to the bed.