X-axis carriage wobble

Trying to properly tune the X-Carve since I need accurate cuts, I’m fairly new to this so I apologize in advance if I did/do something stupid.

A couple of my basic/simple cuts have been okay, except I’ve noticed that the X-axis carriage itself wobbles around the x-axis. I tried playing with all of the v-wheels on all axes to see if it needs a right spot but no dice.

When the router is in, it will wobble even more up and down in the z direction, moves about 1cm - 1/2in. I’m not sure what to do to try and fix this, already tried tightening/loosening the wheels/nuts. Tried searching this problem but didn’t find much.

Edit: Just wanted to add that when I tried aluminum at a slow feed, the whole bit and spindle shifts in the x and z axis when cutting in -y direction, should be using a slower speed but I think that says a little about the carriage wobble.

Thanks! Will give it a try and update on what happens.

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Just an update, everything is working perfectly fine now thanks to Phil. Just needed to loosen all top wheels and tighten them separately then I played with the bottom wheels and eccentric nuts. All works great, thanks again.

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