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Creating an 8x8x8 3D LED Cube: Testing the 8x8 Panels

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Steve Manley
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Re: Next Installment of This Article
Steve Manley   11/19/2014 12:07:17 PM
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@clindley809: Just wondering when the next installment is going to be published. I look forward to it because I might build thie LED cube for myself.

 

Agreed its been too long since my last posting.

I had written a blog a while ago about the base PCB design but never had a video to go with it. I also had issues with making the cube work after I finished cube assembly and got wrapped up in all that, and sorry to say the blogs and videos have fallen behind.

Well some good news, Iím currently working on a video of the cube assembly but it is getting rather long and unwieldy, What I have decided to do is split up the cube assembly video into 2 parts (prep for assembly & the actual assembly).

The prep for assembly video does line up more with the base PCB blog and Iím currently re-working that blog so it flows a little better. The prep for assembly video is nearly done as well, so it shouldn't be to long before I can post the both the video and the blog, with the cube assembly and associated blog to follow.

Max The Magnificent
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Re: Next Installment of This Article
Max The Magnificent   11/18/2014 5:42:34 PM
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@clindley: Just wondering when the next installment is going to be published. I look forward to it because I might build thie LED cube for myself.

Steve is working on the next installment as we speak -- I'll ping him and ask him to comment here.

clindley809
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Next Installment of This Article
clindley809   11/18/2014 4:25:18 PM
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Just wondering when the next installment is going to be published. I look forward to it because I might build thie LED cube for myself.

Max The Magnificent
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Re: Soldering iron temperature
Max The Magnificent   9/15/2014 12:53:07 PM
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@Steve: Sounds like you're practicing dance steps


If there's one thing you don't want to see, it's me dancing LOL

Max The Magnificent
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Re: Soldering iron temperature
Max The Magnificent   9/15/2014 10:03:18 AM
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@Betajet: Three shall be the number thou shalt count, and the number of the counting shall be three. Four shalt thou not count, neither count thou two, excepting that thou then proceed to three. Five is right out.

That was such a classic!

zeeglen
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Re: Soldering iron temperature
zeeglen   9/15/2014 9:37:02 AM
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@Alan ...taking maybe 1/4 second to solder a grainy blob to tack a component into place with fuzzy gray ballbearings.

When one's daily wage is based upon the total number of joints soldered, there is little incentive to take the time to do it right.

AlanWinstanley
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Re: Soldering iron temperature
AlanWinstanley   9/15/2014 7:14:18 AM
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The melting point of traditional tin-lead solder is about 190°C/ 374°F but lead-free solder is higher at 201-227°C 393-440°F. The soldering iron is however set so the solder melts instantly on the tip. I use 330-350°C/ 626-662°F or maybe a little higher for trickier stuff.

You might try eutectic solder 63/37 tin/lead which changes instantly from solid to liquid, can be good for hand soldering.

As for the time needed, it depends how much metal is involved. A small thru-hole solder joint might take a second or so depending. If you don't snip wires off first, it takes slightly longer to get the heat flow. I've seen some video footage of foreign production lines, girls taking maybe 1/4 second to solder a grainy blob to tack a component into place with fuzzy gray ballbearings. Not enough heat flow, poor coverage, unreliable and a possible fire hazard if at mains voltage (arcing, heating).

Alan W

 

zeeglen
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Re: This is amazing
zeeglen   9/12/2014 9:11:14 PM
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@ Steve Manley  It's pleasing to knowI'm not the only one that finds a hotter tip actually reduces soldering time.

Agree. Get the work just hot enough to flow the solder onto both pieces, then get the iron off the joint immediately.


zeeglen
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Re: This is amazing
zeeglen   9/12/2014 9:01:35 PM
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@ David "In a pinch..."  Was that a pun?? :-)

A little one, not as noteworthy as "expanding steam" or "Freudian slip of a girl" by some better punsters in this group :^}

David Ashton
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Re: This is amazing
David Ashton   9/12/2014 7:55:39 PM
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@Zeeglen... "In a pinch..."  Was that a pun?? :-)

I've used the rubber band trick more for holding things (connectors to be soldered, etc) than anything else.   It's a handy trick.

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