<p>What are the real overhang limits? I see a lot online about 45 %, then up to 60 %, but I'm routinely doing them at up to 90 % for &quot;shortish&quot; distances and 80%+ for several centimeters at a time. I haven't tried to see how far I can do it, since I don't have filament to waste on that sort of thing.</p>
<p>It's making me wonder how believable all the YouTube and website experts are. Same thing with stringing, they all talk about it on Ender 3's but this print has been going for 25 hours and has maybe two tiny strings.</p>
<p>This is the second time I've printed this same STL with no supports.</p>
<ul>
<li>0.2 mm layer height</li>
<li>Ender 3 Pro</li>
<li>Generic PLA</li>
</ul>
<p><a href="https://i.stack.imgur.com/IqHWF.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IqHWF.jpg" alt="Overhang" /></a></p>

It is very difficult to determine a definitive number/value for the overhang angle, this is very dependent on the temperature, speed, material, nr. of walls amount of cooling fan percentage and the effectivity of the fan duct and your object geometry. Probably more settings are applicable.
You could find out what the specific values for you printer and your settings are by printing an overhang test, e.g. like
this one
:
Such a test will give you definitive answers on the overhang angle for your specific slicer settings and machine capabilities.