Difference of 1.75mm and 3mm filament

[Crazy_3D_printer]

I'm thinking about purchasing my third 3D printer(I'm a 3D hub), previous two models one is using 3mm filament while another is 1.75mm.According to my printing objects there are really not so much difference of these two filaments.Friend said I did not run the 1.75mm machine in correct way, so what's the right way?Should my third 3D printer 1.75mm?Guys please give me some idea.

[Ezio Auditure]

now most printers on the marketing are using 1.75 mm, only a few 3 mm.
this difference is mostly caused by extruder system, and I heard that 3 mm printer is not very good at flexible printing.
So I want to ask:
do you use flexible filament? can you find local 3 mm filament supplier?

[Sebastian Finke]

3mm filament is becoming more and more scarce in my part of the world. I assume that has more to do with demand.

I also assume that 3mm filament is better for Bowden-type extruders. I speak under correction.

[Crazy_3D_printer]

Hi EzioYes, I use flexible, but not that much, most by ABS.All filaments I got from Ebay, so never mind is local or not.I checked some files and think that 1.75mm/3mm are because of two different open source technologies, like original Makerbot and Ultimaker. The difference is feeding method, not diameter.Correct me if I'm wrong.

[richardphat]

3mm standard is FUBAR, it's been always 2.85 until some major misleading took it for 3.00 and now messed up the whole market. There's reason why it has 1 significant values.... it's been round up.

I can tell you if you ever put true 3.00mm in the Ultimaker you will just increase your jamming chance by a lot.....

[Crazy_3D_printer]

Got it!But still the same question, which is better?Or there is no difference of these two filaments, but difference of two tech?

[tsteever]

I am contemplating switching over to 1.75mm. Not because the 3mm is harder to get but based off of info I have been able to find online. The most compelling argument I have read is that the 1.75 is extruded with less pressure at the hotend and would print with a higher resolution. These are not very scientific reasons cause one would assume that pressures would be the same and that the resolution would be the same. I do know that the 1.75 would need more filament per mm to extrude the same amount so perhaps the resolution argument has some merit.

I just like to tweak things is basically why I want to switch.

[Ezio Auditure]

Hi, 1.75 mm. for same brand, same type, no much difference between 1.75 and 3, as far as I can tell.
But 1.75 mm printers are more

[Crazy_3D_printer]

Agreed, ok I will pick 1.75mm, then I can have more chance on the printers.Is there any guys have experience with SLA model Form1+, how about this machine?