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Engineering Materials

3D Printing & Robots at MD&M West

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Charles Murray
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Re: Bone rasp or industrial tool?
Charles Murray   2/27/2013 7:50:55 PM
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I'm not letting one of those things anywhere near my femurs.

CLMcDade
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baxter
CLMcDade   2/27/2013 5:00:15 PM
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Good article, Ann.  Looks like the trade show had a lot of interesting products to keep you busy. 

You've got two great concepts here, but keeping them separate might be a good idea.  Imagine Baxter with that bone rasp in each "hand" and an angry face on the computer screen!!!

Seriously, as for the concern about differentiating between a person or a part, I wonder if the flesh-sensing technology used in saws (i.e. table saws) would be able to be integrated into the "skin" of a robot to help it identify humans.  Since the saw companies are resisting using the technology, perhaps the robot industry would be able to incorporate it.

Ann R. Thryft
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Re: Baxter Robot
Ann R. Thryft   2/27/2013 11:32:27 AM
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Tim, Baxter isn't really designed to handle fine pick and place movements such as is needed in small-parts electronics assembly. Those are very sophisticated, expensive, precise machines. It's targeted at less precise movements. It's also designed to work alongside humans more than to interact with other robots.

Ann R. Thryft
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Re: Bone rasp or industrial tool?
Ann R. Thryft   2/27/2013 11:31:17 AM
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I know exactly what you mean, Chuck--actually, it looks more like what's called a fantasy weapon, which are more extreme versions of actual (usually medieval) weaponry used in both historical and fantasy movies and some role-playing/re-enactment games, and are represented in some video games.



Ann R. Thryft
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Re: Medical Applications
Ann R. Thryft   2/27/2013 11:30:13 AM
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Greg, I knew medical and dental was a major app area but not that it had reached such a high percentage. I agree, it makes total sense. The reduction in cost per item of a titanium device is what amazed me the most.



eafpres
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3D additive mfg of titanium
eafpres   2/27/2013 11:18:37 AM
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Hi Ann--Baxter has gotten a lot of attention since it was rolled out.  I wonder about the ultimate safety in a real environment.  To do its job it has to learn some places or zones where it expects "parts" and everywhere else would be an exception so the sensors can stop it.  If your body is where a part should be, how does it know the difference?

I can imagine a learning process where the entire profile of motion, including all 3D forces and accelerations are recorded and stored, and some threshold set to that if during the entire operation a threshold is exceeded it stops.  I don't know if that is more or less what they are doing.  Even if that is true, a human has to set the thresholds in the learned profile, and production engineers being human, will tend to set the thresholds to eliminate any false alarms.  That opens the door to injury.

Do you have any deeper insight into how Baxter will always know the difference between work and a human?

Elizabeth M
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Re: Bone rasp or industrial tool?
Elizabeth M   2/27/2013 5:21:18 AM
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Yes, the photo of the femur bone rasp is seriously daunting! Looks more like a weapon for a scifi superhero than a doctor...hopefully patients are under heavy anesthesia before something like this is used on them. The innovations in fabrication of the tool are quite impressive, though.

Elizabeth M
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Re: Baxter Robot
Elizabeth M   2/27/2013 5:18:04 AM
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Enjoyed your firsthand account of Baxter, Ann. Sounds like "he" behaves as the company said he would, but I guess the proof of his usefulness on the factory floor will be in the pudding. Generally he sounds quite impressive, though!

Tim
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Baxter Robot
Tim   2/26/2013 10:24:47 PM
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I can see a lot of applications where the Baxter robot can be used in assembly line application. The robot can handle the arduous task of picking and placing a part for the operator to complete some fine assembly work like fitting tight tolerance components together. The operator can then safely hand the part to another robot for assemnbly or packout.

Charles Murray
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Re: Bone rasp or industrial tool?
Charles Murray   2/26/2013 7:21:36 PM
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I actually thought the bone rasp looked like a medieval weapon, Ann.

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