I've noticed that some extruder barrels are 50mm in length, such as ones sold by some of the online suppliers, while the wiki calls for a 32mm barrel length.
Does it matter? I'm currently having are hard time getting anything to extrude out the nozzle (0.5mm), so I was wondering if this makes a difference.
I'd like to know what barrels/nozzles people are using
successfully on Mendel. I think some kind of poll would be useful to see what setups are most effective.