Breaking News
Comments
Jayna Sheats
User Rank
Manager
Metal printing
Jayna Sheats   11/18/2013 12:17:50 PM
NO RATINGS
Pardon me if I remain in the skeptical corner.  Once again, a potentially valuable tool or process is being buried in hype.  What kind of metal properties will these sintered particulates (with some residual binder) have?  How much will the kiln (mentioned so casually in the article, and not at all in the video) cost?  (For anything other than solder it has to reach a whole lot higher temperature than your kitchen oven!)  If you want two different metals in the same piece, what will the interface look like?


The problem with the hype about 3D printing is that it ignores all these and many other fundamental subtlties of materials processing (thermal history, mechanical working, etc. etc.).  There are some applications for which these won't matter: most items of art don't depend on a precise annealing schedule, for example, nor do they need high purity or strength.  But 3D technologies are being sold (hyped) as if these issues didn't exist.  WHy would one make a motor (which uses several different metals and insulators) this way instead of buying one with optimized properties for a small fraction of the cost?

krisi
User Rank
CEO
Re: Metal printing
krisi   11/18/2013 2:17:58 PM
NO RATINGS
I agree with Jayna...this 3D printing PR is getting really annoying...do you really expect me to design my own chair and print it at home for few thousands dollars??? and even at that price it would be very lousy chair made out of metal or plastic and no movable parts not to mention sophisticated functions like massage or heating...Kris

Max The Magnificent
User Rank
Blogger
Re: Metal printing
Max The Magnificent   11/18/2013 3:58:29 PM
NO RATINGS
@krisi: ...do you really expect me to design my own chair and print it at home for few thousands dollars?

Who have you been talking to? No one expects you to design your own chair. Settle down. Take a "Chill Pill" and relax in your store-bought massage chair (LOL)

Caleb Kraft
User Rank
Blogger
Re: Metal printing
Caleb Kraft   11/21/2013 4:53:29 PM
NO RATINGS
First, you have to be capable of imagining where a rapid prototyping machine has its strong points. Obviously you aren't going to spend 2,000 for the ability to print a chair to sit on. However, if you were someone who designed chairs regularly, 2000 might be a small cost to be able to spit out a computer modeled prototype right there in your home at a fraction of the cost of a prototype house.

 

I personally use mine for custom attachments to gaming controllers for people who have physical disabilities. The cost to print one (that is actually usable) is nothing compared to the thought of tooling and minimum orders.


There is TONS of hype out there. However, there are also legitimitely great things happening as well.

Max The Magnificent
User Rank
Blogger
Re: Metal printing
Max The Magnificent   11/18/2013 3:52:04 PM
NO RATINGS
@Jayna: How much will the kiln (mentioned so casually in the article, and not at all in the video) cost?

Well, I have a ceramic kiln sitting on my back deck that reaches liquid glass temperatures, so I guess I could use that :-)

 

 

David Ashton
User Rank
Blogger
Re: Metal printing
David Ashton   11/19/2013 4:37:31 AM
NO RATINGS
@Max... "Well, I have a ceramic kiln sitting on my back deck..."  so how much did THAT cost?

To be honest the things he produced looked fairly crude...those gears have a LOT of play....but one of his stated objectives is to refine the process.

I think for the money involved I'd rather get a small metal lathe and some other tools....

 

Max The Magnificent
User Rank
Blogger
Re: Metal printing
Max The Magnificent   11/19/2013 11:37:31 AM
NO RATINGS
@David: ...so how much did THAT cost?

Since it keeps me out if trouble, my wife thinks it's worth every penny :-)

Max The Magnificent
User Rank
Blogger
Re: Metal printing
Max The Magnificent   11/19/2013 11:38:34 AM
NO RATINGS
@David: I think for the money involved I'd rather get a small metal lathe and some other tools....

I must admit that I'm becoming more and more tempted by the idea of a small lathe and a small milling machine...

David Ashton
User Rank
Blogger
Re: Metal printing
David Ashton   11/19/2013 3:09:18 PM
NO RATINGS
@Max...re lathes...a friend of mine had a Myford ML7 (3.5" swing, 20" bed) which I spent many happy hours playing on (and did some useful stuff!)    For really small stuff (less than 2'' x about 5" or 6") there was a thing called the Emco Unimat.  But both are expensive - I saw a Myford for $1250 on Ebay and a Unimat for $500+.  I guess there are other things these days, with CNC no doubt.    I so need to win the lotto......

Max The Magnificent
User Rank
Blogger
Re: Metal printing
Max The Magnificent   11/19/2013 3:13:19 PM
NO RATINGS
@David: I so need to win the lotto......

That's certainly the only way I'm going to be able to afford all the cool things I want to play with :-)

Caleb Kraft
User Rank
Blogger
Re: Metal printing
Caleb Kraft   11/21/2013 5:00:55 PM
NO RATINGS
You should be skeptical! This is the beginning, the infancy of these technologies. They need skeptical people to drive them forward to solve the exact issues you've brought up!

David Ashton
User Rank
Blogger
Firing the "clay"
David Ashton   11/19/2013 4:39:57 AM
NO RATINGS
I wonder if inductive heating could be used rather than a kiln?  It would depend on how conductive his "clay" is ??



EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Oh, No! My Antique Analog Meter Has Twitched Its Last
Max Maxfield
20 comments
Well, life is certainly full of ups and downs, isn't it? When it comes to the antique analog meters I'm using in a number of my hobby projects, things appeared to be going swimmingly well, ...

EDN Staff

11 Summer Vacation Spots for Engineers
EDN Staff
20 comments
This collection of places from technology history, museums, and modern marvels is a roadmap for an engineering adventure that will take you around the world. Here are just a few spots ...

Glen Chenier

Engineers Solve Analog/Digital Problem, Invent Creative Expletives
Glen Chenier
15 comments
- An analog engineer and a digital engineer join forces, use their respective skills, and pull a few bunnies out of a hat to troubleshoot a system with which they are completely ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
46 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)