..3D Printers evolve, while crucial main parts of a printer seem to stand still…

more features and advantages:

• outstanding nozzle material properties: energy efficient /ensure high quality printing results
• Calibration efforts are more stable (constant layer thickness even during extreme long print-runs as well as during high temperature print processes)
• No extreme tempering effect. (Hardened Steel nozzles suffer a strong tempering effectcaused by heat, which makes the steel softer.)
• Our flattened nozzle tip doesn’t scratch glas beds unlike diamond / sapphire nozzles or not flattened nozzle tips.
• Another positive aspect is that there is no need for long lasting researches because it is anyway a reliable quality standard in the plastic extrusion industries and this lowered the developing cost of the 3D Printer nozzle and it grants a fast production after the crowdfunding campaign became successful.
• It has no tungsten nozzle tip in a steel or brass body instead our nozzle is completely made of a premium tungsten alloy which makes it more reliable and grants better thermal conductivity
• Made of a premium tungsten alloy which is generally used in the plastics industry or for aerospace applications

Why are Diamonds and other gems not the best choice for a nozzle?

Why didn’t we make a diamond nozzle? Diamond is actually the most superior material for printer nozzles. But a nozzle completely made of diamond would also cause superior costs. So the general trade-off in this case is that just the tiny nozzle tip will be then made of diamond, while the rest of the nozzle is made of cheaper materials like steel or brass. Such nozzles with a gem nozzle tip are actually used for water jet cutting and sandblaster applications and we think such nozzle design in case of 3D Printing requires too many compromises so if we ever make a diamond nozzle then definitely one without any compromise.

Disadvantages of nozzles with a gem nozzle tip:

• you will give up most of the high thermal conductivity features of the diamond. A high thermal conductivity saves energy and your wallet
• you will get an unreliable nozzle tip which can drop out or leak after several printing processes (heating expands and cooling shrinks the body)
• if the nozzle tip is positioned wrong or due to expanding and shrinking of the nozzle body you will get uneven printing results
• a big part of the 3D Printing Community is using a glass bed as printing surface. A nozzle with diamond tip or not flattened tip can easily scratch, cut and break it

Why are (hardened/stainless etc.) Steel Nozzles not the best choice as a 3D Printer Nozzle?

Steel is harder than brass and a budget-priced material. But it comes together with somedisadvantages:

• its low thermal conductivity causing higher energy consumption, so compared to brass, diamond, tungsten and its alloys etc. the steel version is the worst one.
• as consequence to the lower thermal conductivity it will need more effort in calibrating the right temperatures for each printing process
• hardened steel gets tempered during the printing process and thus it becomes softer than advertised
• Better expansion co-efficient than brass but worse than our tungsten premium nozzle

What did we do to ensure you a top quality product?

Already months ago before this kickstarter campaign we introduced our project to the 3D Printing Community and offered free samples worldwide for testing purposes. We announced it on various 3D Printer Magazines and Printer Boards:

Link (English): https://www.3printr.com/testers-wanted-3d-printer-tungsten-premium-nozzle-dddmaterial-5133460/

Link (German): http://3druck.com/pressemeldungen/dddmaterial-sucht-prototypen-tester-fuer-wolfram-premium-3d-druckerduesen-4341011/

Various research institutes, companies and leading figures of the 3D printing community evaluated our nozzles. With their support and feedback we improved our nozzle. The complete promotional event was expensive but it was worth it especially for you backers because it ensures that you will get a reliable and tested premium quality product!

• M6 Thread (Compatible to a wide range of Hotends with M6 Thread, such as E3D)
• For 1.75mm Filaments
• 0.4mm

(Other hole sizes or a nozzle for 2.85/3.0mm Filaments will be probably offered after a successful crowdfunding campaign)

Which 3D Printing materials need high temperatures?

• Polycarbonate (PC) ~260 C ( 500 F)
• Nylon 250 C up to 300 C (482 – 572 F)
• ABS ~230 C (446 F)
• PEEK ~400C (752 F)

Which are typical abrasive 3D Printing materials?

• white filament (the color white is achieved by adding titan oxide to the plastic)
• Compounds like various metal, wood, stone or carbon fiber filaments

50.000 EUR

• Everyone who gets a nozzle, gets additionally one compatible aluminium hotend

85.000 EUR

• Compatible aluminium hotend will be added to each nozzle

dddmaterial was founded in 2014. We focus on the construction of plastic extruders like our upcoming industrial extruder:

And we focus on the development of 3D Printer Equipment for professional purposes, the manufacturing of 3D Printers and their print materials.

Since 2014 we actively blogging about our projects, 3D Printing and plastic extrusion related topics. Check here our blog.

And in 2015 we introduced our projects to the public on the Maker Faire in Hannover, Germany.

Why do we need the money?

Links:

• Tungsten Premium Nozzle Project Page
• Follow us on twitter