hi
yesterday i wanted to pirnt a keychain 5*2cm for a friend
the side facing the plate has small letters… im using a 0,4 noozle.
i managed to get the slicer to show all details in the preview by changing the width of the lines to 0.2mm.
first i had problems to get the first layer sticking to the plate, but after turning the bed and noozle temp a lil bit up it started to stick to the plate but it it looks overextruded or melted so the details wasnt so good…
so here are my questions.
is there actually a way to print these details with a 0,4 nooozle so they look correct?
also i noticed the printer was very fast on normal speed,i had the feeling it was faster than 166 percent, i had to go on slow 50 manually…
i never had this before… i havent changed no speed settings , why was it prinitng so fast??
thx 
Not sure you will get the level of detail you want. You’re demanding the printer to print like a .2 nozzle while utilizing a .4 nozzle. Probably not physically possible while being reliable. You already encounter the first issue, you are not going to get good layer adhesion and poor flow. You need a certain amount of flow in order for the plastic to squish against the build plate and the nozzle and .2 isn’t enough to develop the right amount of squish for the nozzle size. Adjusting the nozzle temperature just lets it over extrude via heat softening instead of a controlled flow and so you are ending up with messy low detail print. You’re essentially still printing like a .4 nozzle but at low resolution.
If you’re serious about trying this, there are some things you can try. I’ve never tried it, but you might try keeping your .2 layer width, lowering the z height of the nozzle so you can develop better layer squish, printing slower, and playing with flow rate and layer height. That just might give a bit more detail, though I’m not certain. Otherwise you’ll want to start using a .2 nozzle to get those fine details you want.
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Not sure you can really get a .2mm line out of a .4mm hole. I think what you are getting is the slicer’s best approximation of the requested action.
As far as, what can you do to improve it, scale up the key chain (or text). Sometimes just a small scale adjustment will get you the accuracy you want. Start around 10-20%.
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thanks ok so a 0,2 nozzle could do the job?
i think i will just get me a 0,2 nozzle before i start to mess around for hours with the 04 settings
Would definitely help in terms of fine detail. Your print times will likely balloon up though, so its best used when needed.
I would expect it to look very close to what the slicer offers as a preview. If that is good enough, give it a try.
Yes, a .2 nozzle should do the job quite well. You are able to do half the layer width of the .4 so you end up with much higher detail with the thinner layer width. You found that at .2 the slicer is able to display the level of detail you are looking for so you should see that when you print.
Since the layer width his halved, you may experience slower print times as you need more walls in order to reach similar strength as the .4 nozzle.
Here’s a picture of a tiny benchy I printed to test out my .2 nozzle. You can see how small the details can get and how small the layer lines are.
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