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3D Printing: Fad or the Future?

Posted December 18, 2014 6:10 PM by Bayes

3D Printing Impressions

I have to admit, the first time I heard about 3D printing, I thought it would be a fad. After all, it seemed an awfully inefficient way to manufacture products. Then someone pointed out to me that what it lost to traditional manufacturing lines in efficiency, it made up for in flexibility. Made to order parts! Warehouses a thing of the past! Ok probably not, but a single machine that can manufacture a bunch of different parts should be useful.

The Future Is Almost Now?

So then it was just a matter of efficiency vs flexibility, at which point I realized there would definitely be applications where it would be a real solution. Still, I had imagined those applications to be niche. Now I'm fully realizing the mistake I made when I first wrote this technology off as a fad. In the article below, from our sister site IHS Engineering 360, it's made clear that 3D Printing is transforming from a niche segment into a viable large scale manufacturing alternative. It's an interesting read, give it a look if you have a chance:

IHS Engineering 360 Article on 3D Printing

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#1

Re: 3D Printing: Fad or the Future?

12/18/2014 7:21 PM

I think this graph of patents over the past ten years is pretty telling. We've definitely passed some sort of tipping point in terms of acceptance of the technology. I'm not sure why the graph is coming out so blurry. Basically it starts with less than 50 patents in 2004 on the left and ends with over 600 in 2014 on the right.

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#2

Re: 3D Printing: Fad or the Future?

12/19/2014 11:01 AM

I do not know if 3d printing is capable of alloys, steel and stainless steel material, if it comes to this, i guess the lathe and the milling machine is a bit old for this modern world.

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#4
In reply to #2

Re: 3D Printing: Fad or the Future?

12/19/2014 11:59 PM

I believe Lockheed Martin's (Skunkworks) has one. I saw where a group built a model of a WWII flying wing built by the Horton brothers. And they used it to produce the intake cowlings, which was the largest area on the original that was metal to see if it showed any stealth applications. Which it did.

We will still need mills and lathes. I remember when Giddings and Lewis came up with parallel machining aka Hexapod mill.

http://m.youtube.com/watch?v=7TowJZQi-qY

This was going to revolutions machine, and it did, for other industries such as simulators.

Also about 4-5 years ago, they even had toys that were 3d printers.

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#9
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Re: 3D Printing: Fad or the Future?

12/20/2014 2:01 PM

3D is really just additive manufacturing (a class of manufacturing operation), and it can be combined with subtractive manufacturing (machining, etc), to produce shapes that are hard to make other ways. This is really taking off in the aerospace industry of late.

It is not possible for instance, to fabricate turbine sections all in one piece without welding, without fitting blade roots into a spindle groove on a hub, etc.

This is a huge speed and parts integrity advantage! It beats casting the parts hands down for any material for which this process can apply (some materials defy being laid down in this fashion, as yet).

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#3

Re: 3D Printing: Fad or the Future?

12/19/2014 8:32 PM

3D printing is definitely here to stay, and grow, and grow.

They even sent one into orbit.

Remember stereo lithography and the sticky mess that was.

I worked in the PCB fab equipment business when the "P" in PCB meant printing resist on copper foil so 90% of the copper could be etched away with acid!

Now they actually "print" the circuit in the literal sense. Think of the acid and copper they save.

Who ever though that robots would paint almost everything from cell phone cases to cars?

Somewhere some guy even printed a functional pistol. That's scary, but true.

Yes, it's the future.

This just in:

Nasa emails spanner to space station

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#7
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Re: 3D Printing: Fad or the Future?

12/20/2014 9:30 AM

This equipment most probably is expensive still. I fear for the future of the machinist and factory workers. This will be less man, more machine stuff.

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#5

Re: 3D Printing: Fad or the Future?

12/20/2014 6:25 AM

Very interesting and educative blog. 3 D is the future of mfg technology i is not a fad.

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#6

Re: 3D Printing: Fad or the Future?

12/20/2014 7:56 AM

There are companies that produce small precision stainless parts using 3d printing methods....precision axis control is easy. The holdup for a material is the deposition method at the print head. If you can control the material, you can 'print' it. The advantage with the multilayer approach is that you can develop shapes that are impossible with conventional machining.

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#8

Re: 3D Printing: Fad or the Future?

12/20/2014 11:58 AM

I was in Sams the other day and they have 3D scanners and printers for under $2000. It can print roughly a cubic foot model.I can see where 3D printing will become a boom for model makers. Imagine printing out a box car in HO scale.

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#10
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Re: 3D Printing: Fad or the Future?

12/20/2014 8:38 PM

My uncle made model ships under contract, when I was at the shipyard in the 90's I always watch the technology at 3d printers to do this. Now model making is a whole new skills-set.

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#11

Re: 3D Printing: Fad or the Future?

12/20/2014 11:24 PM

Just the thing to get that provisional patent off the drawing board?

Regards JD.

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