# Nozzle diameter does it matter? **URL:** \ **Category:** Print Advice\ **Created:** [February 17, 2023, 8:34pm UTC](https://forum.lulzbot.com/t/nozzle-diameter-does-it-matter/25364 "2023-02-17T20:34:49Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![RCpilot](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/rcpilot/32/11962_2.png) [@RCpilot](https://forum.lulzbot.com/u/RCpilot)\ **Post date:** [February 17, 2023, 8:34pm UTC](https://forum.lulzbot.com/t/nozzle-diameter-does-it-matter/25364/1 "2023-02-17T20:34:49Z")
I want to print a functional part but the creator of the STL says I need a 0.4mm nozzle and if I don’t the print might not be functional. I have a 0.5mm nozzle on my Taz Workhorse will that work? I need a tight tolerance fit for this part. ---
**Author:** ![b-morgan](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/b-morgan/32/11517_2.png) [@b-morgan](https://forum.lulzbot.com/u/b-morgan)\ **Post date:** [February 17, 2023, 9:14pm UTC](https://forum.lulzbot.com/t/nozzle-diameter-does-it-matter/25364/2 "2023-02-17T21:14:48Z")
IMO, the answer is “it depends”. Sometimes “need a 0.4 nozzle” is “tested with a 0.4 nozzle” or “designed for a 0.4 nozzle”. I have printed numerous objects with moveable parts (or joints) using a 0.5mm nozzle. Some of them said they were designed for a 0.4mm nozzle and some didn’t specify. In some cases, there were two .stl files, one with the complete object and one with a test “joint”. I’ve also had a few failures. Sometimes you can tweak slicer parameters to “fix” an object that doesn’t function. Without some details, all I can say is try it. ---
**Author:** ![BobBlazevic](https://avatars.discourse-cdn.com/v4/letter/b/b5ac83/32.png) [@BobBlazevic](https://forum.lulzbot.com/u/BobBlazevic)\ **Post date:** [February 18, 2023, 2:36am UTC](https://forum.lulzbot.com/t/nozzle-diameter-does-it-matter/25364/3 "2023-02-18T02:36:04Z")
There is not much difference between the 2 sizes. First. Try printing it as you normally would. If that doesn’t work out, There is a couple of other things to try. Assuming you are using Cura-LE 3.6.37. And 2 walls. The first thing to try is just turning on “Print Thin Walls”. Print Setting | Shell | Print Thin Walls | [enable] And change the wall thickness to 0.8mm. Print Settings | Shell | Wall Thickness | [0.8 mm] If that is still binding, combine that with changing the extruded lines width. Change all in the Quality section that are set at 0.5mm to 0.4mm. e.g. Print Settings | Quality | Line Width | [0.4 mm] ---
**Author:** ![HiroP](https://avatars.discourse-cdn.com/v4/letter/h/ac91a4/32.png) [@HiroP](https://forum.lulzbot.com/u/HiroP)\ **Post date:** [February 18, 2023, 10:29pm UTC](https://forum.lulzbot.com/t/nozzle-diameter-does-it-matter/25364/4 "2023-02-18T22:29:21Z")
I printed multiple sets of Voron parts with a 0.5n, seems to work fine. If everything else on your printer is working right, then it should be good. ---
**Author:** ![kmanley57](https://avatars.discourse-cdn.com/v4/letter/k/13edae/32.png) [@kmanley57](https://forum.lulzbot.com/u/kmanley57)\ **Post date:** [February 19, 2023, 11:50pm UTC](https://forum.lulzbot.com/t/nozzle-diameter-does-it-matter/25364/5 "2023-02-19T23:50:35Z")
That usually means they designed the wall thickness to use that size. If you use a different size nozzle make sure it will print right. For example it may cause it to overlap with a larger nozzle or create a internal gap in the wall.