What about bronze? Higher tin content. I don't mind buying brass novels. I have spares. Just wondering out of curiosity

n2ri wrote:

from my experience with how different metals do under high temps etc. in wiring, refrigeration etc. it wont last long since it cracks during expansion and contracting (plus causes leaks when contracting loosening itself when threaded. copper and brass both do much better and is why they are preferred for such uses. most electrical and refrigeration uses have been abandoned due to these properties causing issues. e.g. fatigue cracks in tubing, wire, and sheets at stress points, working loose from clamps in electrical panels causing arching, loss of current flow from resistance, fires... spend a couple more bucks and eliminate extra headaches. the fact its called Aircraft Aluminum should tell ya why. its just lighter weight material. but its down sides is why so much maint has to be done, to find and replace failed parts. also it still corrodes just different than steel. white powder death.

Bronze is a bit stronger than copper and better conductivity than brass but higher cost. its strength is why its used in things like Bells and Cannons. also it dont tarnish quite as easy as Copper nor break/crack as easy as brass, and has better casting property's than say cast iron with less bubbles etc that can cause things like a Cannon to explode without warning. it is heavier than most other non-ferrous metals though. so for molten plastic nozzle use it may be better suited if you can find a supplier that uses it for same. as it would fare better under extreme temp changes.

Mitch

carl_m1968 wrote:

Just face it, we are not ready to print with metal yet at home in an uncontrolled environment.

Easy on the blanket statements there, chief.

Printed with "normal" extruders at 210C/220C.

http://utwired.engr.utexas.edu/lff/symp … ireles.pdf

That was done in a lab, I said in a home and uncontrolled environment. We are no there yet. Also many of these alloys that do print are not safe for human use and contact.

Just face it, we are not ready to print with metal yet at home in an uncontrolled environment.

Easy on the blanket statements there, chief.

Printed with "normal" extruders at 210C/220C.

http://utwired.engr.utexas.edu/lff/symp … ireles.pdf

just looked this up on wiki

http://en.wikipedia.org/wiki/Amorphous_metal

Research in Tohoku University[6] and Caltech yielded multicomponent alloys based on lanthanum, magnesium, zirconium, palladium, iron, copper, and titanium, with critical cooling rate between 1 K/s to 100 K/s, comparable to oxide glasses.[clarification needed]

In 1988, alloys of lanthanum, aluminium, and copper ore were found to be highly glass-forming. Al-based metallic glasses containing Scandium exhibited a record-type tensile mechanical strength of about 1500 MPa.[7]

In the 1990s new alloys were developed that form glasses at cooling rates as low as one kelvin per second. These cooling rates can be achieved by simple casting into metallic molds. These "bulk" amorphous alloys can be cast into parts of up to several centimeters in thickness (the maximum thickness depending on the alloy) while retaining an amorphous structure. The best glass-forming alloys are based on zirconium and palladium, but alloys based on iron, titanium, copper, magnesium, and other metals are also known. Many amorphous alloys are formed by exploiting a phenomenon called the "confusion" effect. Such alloys contain so many different elements (often four or more) that upon cooling at sufficiently fast rates, the constituent atoms simply cannot coordinate themselves into the equilibrium crystalline state before their mobility is stopped. In this way, the random disordered state of the atoms is "locked in".

In 1992, the commercial amorphous alloy, Vitreloy 1 (41.2% Zr, 13.8% Ti, 12.5% Cu, 10% Ni, and 22.5% Be), was developed at Caltech, as a part of Department of Energy and NASA research of new aerospace materials. More variants followed.[citation needed]

In 2004, two groups succeeded in producing bulk amorphous steel (actually rather cast iron owing to high C content), one at Oak Ridge National Laboratory, the other at University of Virginia. The Oak Ridge group refers to their product as "glassy steel," while the University of Virginia group referred to theirs as "DARVA-Glass 101".[8][9] The product is non-magnetic at room temperature and significantly stronger than conventional steel, though a long research and development process remains before the introduction of the material into public or military use.[10][11]

so the material is available but is the hot end ready for the material?

I don't see a mention of temperature, and I doubt those alloys melt in the range of our extruders. Just face it, we are not ready to print with metal yet at home in an uncontrolled environment.

http://en.wikipedia.org/wiki/Amorphous_metal

Research in Tohoku University[6] and Caltech yielded multicomponent alloys based on lanthanum, magnesium, zirconium, palladium, iron, copper, and titanium, with critical cooling rate between 1 K/s to 100 K/s, comparable to oxide glasses.[clarification needed]

In 1988, alloys of lanthanum, aluminium, and copper ore were found to be highly glass-forming. Al-based metallic glasses containing Scandium exhibited a record-type tensile mechanical strength of about 1500 MPa.[7]

In the 1990s new alloys were developed that form glasses at cooling rates as low as one kelvin per second. These cooling rates can be achieved by simple casting into metallic molds. These "bulk" amorphous alloys can be cast into parts of up to several centimeters in thickness (the maximum thickness depending on the alloy) while retaining an amorphous structure. The best glass-forming alloys are based on zirconium and palladium, but alloys based on iron, titanium, copper, magnesium, and other metals are also known. Many amorphous alloys are formed by exploiting a phenomenon called the "confusion" effect. Such alloys contain so many different elements (often four or more) that upon cooling at sufficiently fast rates, the constituent atoms simply cannot coordinate themselves into the equilibrium crystalline state before their mobility is stopped. In this way, the random disordered state of the atoms is "locked in".

In 1992, the commercial amorphous alloy, Vitreloy 1 (41.2% Zr, 13.8% Ti, 12.5% Cu, 10% Ni, and 22.5% Be), was developed at Caltech, as a part of Department of Energy and NASA research of new aerospace materials. More variants followed.[citation needed]

In 2004, two groups succeeded in producing bulk amorphous steel (actually rather cast iron owing to high C content), one at Oak Ridge National Laboratory, the other at University of Virginia. The Oak Ridge group refers to their product as "glassy steel," while the University of Virginia group referred to theirs as "DARVA-Glass 101".[8][9] The product is non-magnetic at room temperature and significantly stronger than conventional steel, though a long research and development process remains before the introduction of the material into public or military use.[10][11]

so the material is available but is the hot end ready for the material?