MakerGear Forum

I recently bought a new hot end and 2 new .35 Stainless Steel nozzles. Today I got a nozzle clog and put on one of the ss nozzles. When I put a caliper on the extrusion it is coming out at .49. I swapped to the other new ss nozzle and got the same reading. I pulled the brass nozzle off my new hot end and used it , and got the expected .33 measurement. Is it possible that MG got in some bad nozzles?

Did you check the size stamped on the side of the nozzles? (Might have accidentally gotten a 0.5 mm nozzle or two.)

They are stamped .35

Might want to measure the hole with a calipers then - they might be out of spec.

Jules wrote:Might want to measure the hole with a calipers then - they might be out of spec.

I don't have the tools to measure the inside of the hole with calipers. That would be a mighty small set of calipers. All I can do is measure the extrusion that comes out. I am pretty sure that they are out of spec, I was just hoping it might be a known issue. I will open a ticket.

You should be able to see a comparison of the size to the other nozzle if you clean them off, from the outside, but it doesn't matter. Support ticket is probably the way to go anyway.

Update:

I picked up some small drill bits in order to get a better measurement of the hole than by extrusion. A .45 drill bit slides easily into the hole of a new cold stainless steel tip. A .5 will not slide in, but I believe if I were to heat it to extrusion temperature it probably would. I just don't want to chance making the hole larger. Makergear's supports answer to this, "it in line with expectations" So for anyone who values precision, you should know that a new tip with a hole that is 40% larger than it is supposed to be is good enough for Makergear.

Another update:

Now they have decided they will replace the nozzles. At this point, however I an too disgusted at their attempt to act like there wasn't any issue to even care. I refuse to believe that I received the only two nozzles that were out of spec, and that they didn't know that they have a bad batch.

For what its worth, I recently purchased .35 stainless nozzles, and I have been printing non-stop with them, without issue.