Nozzle Buying

poopym

Would M8 nozzles work with the A5S? how about M10?

Samuel Pinches

First, I think you mean MK8 and MK10?

1. Because the height of the nozzles are different, you would need to significantly change the z-endstop height and bed thumbscrew heights. The MK8 nozzles look much longer than normal.
   
2. If there is not enough thread (M6 screw) in the upper part of the nozzle, then the top of the nozzle will not seal against the heatbreak, and filament will leak out of the nozzle. The MK8 nozzle looks too short, and the MK10 nozzle looks far too short.

In short, no I don't think they will work.

I recommend only getting "E3D V6" compatible nozzles. You can see the correct geometry here, from the E3D documentation website.

ThingsNSchtuff

I have purchased the following nozzles and can confirm that they work well with the printer.

https://www.amazon.com/gp/product/B07MK6TBZS/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1
or 
https://www.amazon.com/gp/product/B07PHZNMWD/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1