Lead screw stabilizer with Capricorn XS filament guide and T Slot for some Creality printers like Ender 3. After a several months of prints, I noticed worn areas due to the friction of the filament with some parts of the filament guide I designed a time ago. With this modification the friction is reduced and will work better. This design it's not the final version, you will notice that the hole for introducing the tube is not the expected. You will need to work a little bit.
NOTE: I designed this guide using the Capricorn XS PTFE tube, I supose that for others tubes will work.