I have a BigBox Dual I built from a Kickstarter purchase, so it has the original X-Carriage, V6 extruders etc. i.e. not Titan, and I use 1.75mm filament. At present I use PLA and ABS. I'm thinking of using Edge, no fumes, better adhesion etc. I was about to order when I noticed some colours were only available (at least on the E3D site) in 3mm not 1.75mm, not a problem but do I have to change anything on my present setup? e.g. ptfe tubes guiding filament from spool to X-Carriage? Any parts between where the filament enters the the X-Carriage (collet?) all the way through to the nozzle? I'm about to look through the parts I have left from the build to see if any indicate they are for 3mm not 1.75mm, plus I will look through the build instructions for any reference to 1.75 or 3mm but in the meantime any advice appreciated.