Flexible Fillament/itty bitty Extruder

[dustmann]

Hello,

I was wondering if anyone knew if it is easier to print with flexible filaments in a size 3mm or 1.75mm?
Another question I had was if I purchase thePrusa 12" i3v Kit (V-Slot Extrusion)

3D printer kit from makerfarm and also purchase the Itty Bitty Double Extruder Hardware Set

which requires an extraHexagon Hot End

what voltage should the heater be for the hexagon hot end be that works with the Prusa 12" the options are 12V and 24V
The final question I have is does the Itty Bitty set come with the files to print the parts that are not included?
Any help is appreciated I am new to the 3D printing world

In my experience it is easier to find flexible filament in 1.75mm. I only have experience with 1.75mm filament, so I cannot comment on how easy it is with 3mm vs 1.75mm.

You can find the STL files on clough42's website or on thingiverse, and you should order the hot ends that match your power supply. If you are using a 12v power supply, get 12v hot ends (the only difference is the heater cartridge), if you have a 24v power supply, get the 24v hot ends. A 24v power supply will heat the bed and hot ends quicker, but make sure your board will allow 24v before you buy a 24v power supply.