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3doodler defective fan?

by on Jan.24, 2014, under 3d printing

I love my 3Doodler. It is a tool I can not live without. So today when it started to jam and not pull in filament properly I took it apart to see what was going on.
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Yup it was jammed with ABS dust.
 
Then I noticed the fan…
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prusa i2 print issue

by on Jan.07, 2014, under 3d printing, Reprap Prusa

So I am trying to debug my prusa i2 after having been rebuilt with a ton of new parts. I keep getting these messed up prints where the vertical shells don’t bond or have a gap between them along with a gap between the vertical shells and the infill.
 
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steelcase room wizard

by on Nov.07, 2013, under Electronics

Got this neat system cheep.
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huge barn fire near my house

by on Oct.18, 2013, under Life

Crazy huge barn fire near my houseĀ  at Wakeman Road and Vanderberg Drive in Fairport NY
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Energy Efficient CFL fire Hazard?

by on Sep.14, 2013, under Electronics

I noticed something wasn’t right with this light when it failed so I opened it up.
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Electronics totally burned up
 
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Inside plastic is burned.
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The irony is the burn almost went though the UL label
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inside plastic is covered with burn marks
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The CFL it self is melted! This had to get quite hot to do that!
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The other side of the electronics.

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How to overclock your Block Erupter And possibly destroy it in the process.

by on Aug.04, 2013, under Electronics

Caution do this at your own risk. I blew mine out so you don’t have to!

That said. Here is how I got my block erupter overclocked to 56o MHz briefly before it died.
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Some nice cloud photos that i took :)

by on Aug.03, 2013, under Stuff

Enjoy
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Kodak History found cheep at estate sale

by on Aug.01, 2013, under Electronics

I got this nifty piece of history cheep at a local estate sale.
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A UL 60w light holder fail.

by on May.11, 2013, under Electronics

A simple light bulb change lead to disaster this morning.
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Decapsulated chips

by on May.09, 2013, under Electronics

Warning! Nitric Acid is nasty stuff to play around with. I did this so you don’t have to! Do not attempt to do this yourself or you may end up dead!
So today I wanted to try and decapsulate some chips to see how they were laid out inside.
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This was my first attempt. A Leapfrog L1000 arm chip.
Not sure if I etched everything off or this is some sort of copper obfuscation layer.
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The other side looks like the standard back of a chip.
Next I attempted one of those custom glued down chips from a older leapfrog toy.
results were much better.
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This is one really nice chip to look at :)
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Some sort of die marking of who really made the chip. I couldn’t get a clear image of it.
This is at 500x zoom on my microscop
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Next up I did a old DEC scsi chip
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lastly a simple 8 pin eprom chip
i2ce
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i2ce4
 

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