Z axis kicks when starting a new layer

Hi everyone, I have a Shapeoko XXL that I just got today. I have been attempting to carve a 0.5-inch deep square. Every time the machine tries to start a new layer, the z-axis kicks. I’ve lowered my plunge rate to 0.5 which seems to be helping. I am using Rockler’s Dish Carving Router Bit - 1" Dia x 1/2" H x 1/4" Shank.

Please see the video https://youtu.be/xfJwYputEek

Does anyone have any recommendations to fix this?

It appears you have a belt driven Z axis right? From the video, it appears your plunge rate is to high.

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I have the plunge rate set to 0.5. I’m unsure if it can go any lower

Attached you will see my settings for the bit. I’ve attempted to get the plunge rate lower but I believe 0.5 is the lowest rate that is allowed.

I have seen videos of the bit being used as a plunge router piece. See the following: https://www.youtube.com/watch?v=nHSi_tY1W4A

Do you recommend that I first start by looking at the parallelity of the workpiece?

Do you recommend that I use a different bit to verify that the same problem is occurring for every operation?

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