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_hm
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Re: 3D printing for prototype PCB?
_hm   10/14/2013 5:44:42 PM
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@Max: LPKF is for quite many years. But now, we need four layers and more. May be good to test 3gbps high speed serial communication!

 

_hm
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Re: Cordwood
_hm   10/14/2013 5:42:08 PM
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@Duane: Yes, I have seen this in many US Military products and also reversed engineered them. However, those assemblies were also epoxy potted.

One of application has high voltage requirement.

 

_hm
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Re: 3D printing for prototype PCB?
_hm   10/14/2013 5:38:00 PM
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@elizabeth: Can they employ some form of Cu ribbon to keep Cu trace and low power laser drill for vias?

 

David Ashton
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Re: 3D printing for prototype PCB?
David Ashton   10/14/2013 5:07:19 PM
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There's a huge article on it here

 

http://reprap.org/wiki/PCB_Milling

David Ashton
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Re: 3D printing for prototype PCB?
David Ashton   10/14/2013 5:04:26 PM
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@hm, Max.....The best thing I have seen that would kinda be affordable for home use is a 2-D router that can cut the copper layer and thus form tracks.  Because there is copper everyehwere, not just where there are tracks, the PCBs look a bit unusual, but it works fine.  I have no idea how much they would cost, though...

Max The Magnificent
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Re: 3D printing for prototype PCB?
Max The Magnificent   10/14/2013 4:19:09 PM
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@betajet: LPKF is still going strong -- they have both mechanical milling and lasers.  Resolution keeps getting better.

I just bounced over to their website ... VERY Tasty!!!

Max The Magnificent
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Re: 3D printing for prototype PCB?
Max The Magnificent   10/14/2013 4:16:35 PM
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@elizabeth: It's unlikely that there would be a low cost tool to make PCBs using the 3D printing approach since you would need to print an insulating substrate followed by (or combined with) metal. All the low cost 3D printers I know about can only do plastic...

Oh, is that what this person was asking -- my bad -- I thought it was a generic question about how to make your own printed circuit boards at home.

Max The Magnificent
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Re: Cordwood
Max The Magnificent   10/14/2013 4:14:00 PM
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@Duane: Have you seen this technique? I understand it went to the moon and back.

I haven't seen one in the flesh (although I would love one for my collection), but I have seen it before. As you say, it was called the cordwood technique -- it actually offered tremendous packing density for the time -- I'm always amazed by the different techniques folks come up with...

Max The Magnificent
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Re: 3D printing for prototype PCB?
Max The Magnificent   10/14/2013 4:08:08 PM
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@_hm: I am wondering, is there low cost tool for 3D prinitng of PCB to get them faster and at lower cost in your home?

I have a couple of friends who make their own PCBs -- I remember once chatting with one of them about a small project idea in the morning, and he called me in the afternoon to say that he'd made a prototype PCB and one populated with components was already in the post to me. I will ask him if he woudl be interested in posting some articles on this here on PCB Designline.

Max The Magnificent
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Re: mess
Max The Magnificent   10/14/2013 4:05:17 PM
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@Caleb: I do however LOVE the asthetics of a PCB and plan on keeping a close eye on this designline if only for the visuals!


I will do my very best to keep your eyes fed with tasty visual fodder :-)

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