Is there a good way to determine nozzle size? Towards the end if last year I designed and built my hot-end. The nozzle is formed from a 0.6mm MIG tip. Following a tip I saw here on the forums, I used a hammer to reduce the aperture size. (The build details and report can be found on my blog here: foraysinto3d.blogspot.com/2012/01/chapter-24-in-which-i-design-and-build.html ) When my prusa comes back from its Christmas holiday to the garage next week I want to start using slic3r, which requires the nozzle diameter. Is there a reliable and fairly easy way to determine the nozzle size, especially since it is now mounted? I have tried free-air extrusion, but I seemed to get varied results. https://reprap.org/forum/read.php?1,113374,113374#msg-113374 Mon, 07 Sep 2026 01:22:04 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,113374,284414#msg-284414 Re: Is there a good way to determine nozzle size? https://reprap.org/forum/read.php?1,113374,284414#msg-284414 aduy General Tue, 24 Dec 2013 20:07:48 -0500 https://reprap.org/forum/read.php?1,113374,284403#msg-284403 Re: Is there a good way to determine nozzle size? https://reprap.org/forum/read.php?1,113374,284403#msg-284403 nechaus General Tue, 24 Dec 2013 18:55:32 -0500 https://reprap.org/forum/read.php?1,113374,284125#msg-284125 Re: Is there a good way to determine nozzle size? https://reprap.org/forum/read.php?1,113374,284125#msg-284125 Knowing the diameter of the filament being driven into the nozzle and the rate at which it is driven are absolutely critical though because they determine the volume. If the nozzle is too wide then it will attempt to overlap the previous lines, too narrow and you will potentially get some snaking of the extrudate. Volume MUST match though or you either won't get proper inter layer bonding or your filiament will back up, jam and your models will be oversized.]]> grael General Tue, 24 Dec 2013 03:04:44 -0500 https://reprap.org/forum/read.php?1,113374,113953#msg-113953 Re: Is there a good way to determine nozzle size? https://reprap.org/forum/read.php?1,113374,113953#msg-113953 TCase General Sat, 14 Jan 2012 18:10:32 -0500 https://reprap.org/forum/read.php?1,113374,113943#msg-113943 Re: Is there a good way to determine nozzle size? https://reprap.org/forum/read.php?1,113374,113943#msg-113943 nophead General Sat, 14 Jan 2012 16:23:50 -0500 https://reprap.org/forum/read.php?1,113374,113924#msg-113924 Re: Is there a good way to determine nozzle size? https://reprap.org/forum/read.php?1,113374,113924#msg-113924 Lsutehall General Sat, 14 Jan 2012 15:34:46 -0500 https://reprap.org/forum/read.php?1,113374,113708#msg-113708 Re: Is there a good way to determine nozzle size? https://reprap.org/forum/read.php?1,113374,113708#msg-113708 DeuxVis General Fri, 13 Jan 2012 12:01:24 -0500 https://reprap.org/forum/read.php?1,113374,113384#msg-113384 Re: Is there a good way to determine nozzle size? https://reprap.org/forum/read.php?1,113374,113384#msg-113384
Having said that die swollen size is the important parameter, not the nozzle diameter.]]> nophead General Wed, 11 Jan 2012 18:17:37 -0500 https://reprap.org/forum/read.php?1,113374,113374#msg-113374 Is there a good way to determine nozzle size? https://reprap.org/forum/read.php?1,113374,113374#msg-113374
When my prusa comes back from its Christmas holiday to the garage next week I want to start using slic3r, which requires the nozzle diameter.

Is there a reliable and fairly easy way to determine the nozzle size, especially since it is now mounted?

I have tried free-air extrusion, but I seemed to get varied results.]]> Lsutehall General Wed, 11 Jan 2012 17:16:35 -0500