tube holder
thingiverse
needed to guide the filament more smooth, I hade 8mm tube at home from work but needed to fasten it some how, then I made this holder in fusion 360.
Download Model from thingiverse
With this file you will be able to print tube holder with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on tube holder.