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Max The Magnificent
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Re: Quad Extruders? I want! I want!
Max The Magnificent   1/22/2014 11:14:48 AM
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@Richard3257: I think you should know that 3d has released a water cooled belden quad print head this month.

I'm amazed by how quickly this technology is progressing...

Richard3257
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Re: Quad Extruders? I want! I want!
Richard3257   1/22/2014 12:36:11 AM
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I think you should know that 3d has released a water cooled belden quad print head this month. Now if I could only find a mother board that handles 4print heads! The search continues .

Caleb Kraft
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Re: Adding Orientations
Caleb Kraft   9/16/2013 9:18:22 AM
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so you're not talking about just another extruder. That isn't a bad idea at all. A spray nozzle for some kind of finish wouldn't be bad. 

DrQuine
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Re: Adding Orientations
DrQuine   9/15/2013 10:39:05 PM
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I see the side "spray" as having the potential to add a coating which is very hard to do when printing from the top and trying to "coat" a vertical serface by printing a thin surrounding boundary with a separate print head.

Caleb Kraft
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Re: Adding Orientations
Caleb Kraft   9/15/2013 12:13:29 PM
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I think with a little work this is feasible. I also know that my current printer doesn't function within tight enough tolernaces to make something like that work. You would be fighting against gravity instead of working with it.

What advantages would multiple print orientations have though?

DrQuine
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Adding Orientations
DrQuine   9/12/2013 7:20:01 PM
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I'd think that adding additional orientations of heads could also be an advantage. While the extruders typically work from above, a head / coater / surface finish from the side might also be a benefit. This head might even have a different material that was intended as a surface coat or bonding agent.

Max The Magnificent
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Re: Quad Extruders? I want! I want!
Max The Magnificent   9/12/2013 2:17:05 PM
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@caleb: It is worth noting that you would probably have to do some custom code to handle this system.

Good point -- especially remembering that I haven;t even got my single extruder printer working yet :-)

Caleb Kraft
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Re: Quad Extruders? I want! I want!
Caleb Kraft   9/12/2013 2:13:56 PM
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It is worth noting that you would probably have to do some custom code to handle this system. The existing packages often have dual extruders built in, but they are the standard type. 

Max The Magnificent
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Quad Extruders? I want! I want!
Max The Magnificent   9/12/2013 2:12:15 PM
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OMG -- Quad Extruders -- I want I want!!!



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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