I created this guide since the standard spoolholder and the filament tube mounting on the Flashforge Creator Pro 2026 are a little cheap. I do not mean this in terms of cost, but you are limited in the mater of spool sizes and also the tube can give you too much resistance if the filament has to be pulled over the edge of the tube.
With this guide it is more of a coaxial feeding into a pipe not a side ways approach.
Use a washer and a wood screw to screw it onto the FF. You can use the holes in the middle of the original tubeholders to do so.
To attach the tube just use cable ties there are 4 holes to stick them through.
Flashforge Creator Pro 2016 / Makerbot Rep2
There is no special setting or approach required to print this part. Use your default settings to print for the material your using.