Welcome to the SeeMeCNC Community

Everything seems to work really well, right out the gate with this printer. I do have 1 issue that I'm not sure where to start with troubleshooting -

When an object starts printing - the print head shoots down towards the print bed, and just randomly "picks a spot" to start printing - maybe an inch away from the bed, maybe 10 inches away. I've had it go down to proper layer one position once now, so I'm not quite sure where to start with troubleshooting this. I have to pause the print as soon as it starts, run my bed center macro, then resume print. Any thoughts?

Have you set the z height on the lcd controller as indicated in the manual?

Yes, and calibrated each tower, and set bed center height.

It's random each time. Sometimes a few mm height, sometimes halfway up the towers.

Hot end is not traveling as far as instructed by gcode.

Could be missing steps - maybe reduce the travel speed.
Could be loose pulleys.
Does everything move smoothly and easily - no overly tight belts or carriages?

I believe I've fixed it with reducing the non print travel from 300ms to 100ms, and giving the belts another round of tightening.

Thanks for the help!