Summary

This is my filament guide for the Ikea Lack table.

The others I saw either didn't go all the way through the table, or had sharp square edges. So I whipped this one up in Fusion 360 with a rounded top and long enough to go right through.

Print with the flared top facing down.

Drill a hole with a 1/2 inch drill bit and pop it in.

I've added the fusion 360 design file as well in case anyone wants to make small changes to it.