Under-workbench filament guide

I have a relatively small workspace for my two printers. To reduce workbench clutter and make my workspace more usable, I routed the filament from the spool holder, through the tubing guide to beneath the table top. From there it goes to a second tubing guide, where it goes back through the table top to the printer filament input. I use Creality's Multi-kilo Feeding Holder to hold the spools (up to three 1Kg rolls can be loaded or one 5Kg roll). (https://store.creality.com/products/3d-printer-multi-kilo-feeding-holder-black).

Beneath the table, I route the filament through PTFE tubing to avoid entanglements where it would be difficult to access them. I tried Creality's Bowden Tube, but there was too much friction for traveling 1 meter through the tubing. I bought PTFE tubing from Amazon with a slightly larger internal diameter and it worked great (https://www.amazon.com/UNIDO-Teflon-Creality-Extruder-Printer/dp/B0DP22LT24/).


There is one dimension you MAY have to modify, the table t