This is the standard nozzle designed by premier hot end designers and manufacturers E3D. It just so happens that it is also a direct drop in compatible replacement for the Ultimaker 2+ series (or 2 upgraded with an Olsson Block)
|Nozzle Size||Application||ID Dots*|
|0.25mm||Highest Precision - Slower Prints||0|
|0.35mm||Slight Increase in Precision||2|
|0.40mm||Balanced Nozzle - Supplied by Default||3|
|0.60mm||Our Preferred Minimum for Wood Filled Filament||4|
|0.80mm||Lower Precision - High Speed, Higher Strength||5|
* Dots are machined onto the hex-flats of the nozzles for easy identification.
Sanjay did a perfect job of explaining it, so we’ll just repeat his words!
From the E3D Blog:
Nozzle Specificity and Indentifiability.
While we were in the process of going over the nozzle we thought we’d address making them easily identifiable on a per-size basis. It’s fairly obvious whether a nozzle is 1.75mm or 3mm, but telling the difference between a 0.35mm and a 0.40mm is incredibly hard, and that’s before they get covered in plastic. To that end we have added spots drilled onto the hex flats of the nozzles, the number of which corresponds to a specific size of nozzle. The more dots the bigger the nozzle. We did consider using a binary code, but decided that we didn’t need 64 different sizes of nozzles in the end – maybe one day.
When a nozzle is printing it is not only outputting a stream of plastic, but also flattening it into its final stadium cross sectional shape. The width of this printed track is wider than that of the nozzles small diameter hole, as such the nozzle tip needs to have a flat on it that is at least as wide as the widest sensible track width. Because the widest sensible track width varies depending on the nozzle diameter it logically follows that the tip flat diameter should vary with the nozzle diameter.
Phwwoooar look at that proportional orifice-tip-flat relationship!
This means that with our larger 0.60mm and 0.80mm nozzles you can lay down fatter wider layers than ever before. This is great for large fast printing of super-strong objects, Nylons in particular benefit from being printed from big nozzles. Additionally you can create beautiful very glassy looking objects with big layers of PET type materials like _XT , T-Glase and Polycarbonate. **edit: A large diameter nozzle is also absolutely awesome for printing filled materials like woodfill and carbon fiber PLA.
For our smaller nozzle this means you can get even greater resolution and print smaller details and features in your objects. The smaller tip flat allows you to put down those small features and details without an over sized tip flat smudging the tracks adjacent to what is being printed.
These nozzles are also backward compatible with v5 and v4 so you can use them on existing hotends if you want to get some proportional orifice-tip-flat relationship goodness in your life without swapping out the whole hotend.
Medical grade and food safe stainless steel nozzles. Print slow! These nozzles are fully integrated into the E3D Ecosystem and will fit V6, Lite6, and Titan Aero HotEnds, and are compatible with Prusa 3D printers.
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