Daily Archives: April 27, 2015

HA another harddrive grinder build.

I get a kick out of these harddrive grinder builds I see every so often.  The author did a good job writting it up.  Me…I think $10-20 will get the same thing at harbor frieght without the need to make … Continue reading

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Build your own PVC based Rubberband Machine Gun

I remember a kickstarter project to build a wooden version of this.  This is much cheaper solution thought.  Maybe $20 in materials.  This could be a fun project to build with kids, and I see a few spots where we … Continue reading

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Using an LED to detect RF signals

OK this is a first for me.  The author uses an ATiny with an LED to detect RF, Radio Frequency, signals. http://hackaday.com/2015/04/26/using-an-led-as-a-simple-rf-detector/

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And more on Xerox not looking too good in stock

It seems 3D systems, which bought out a bunch of Xerox’s 3D printing tech, and Xerox, both had a lousy week last week. http://www.wsobserver.com/stocks-you-should-dump-3d-systems-corporation-nyseddd-xerox-corp-nysexrx-hanesbrands-inc-nysehbi-guaranty-bancorp-nasdaqgbnk/7211784/

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$5 LED lanterns

This has to be an interesting build.  The author uses PVC pipe (painted) to be a “stand” and then ping-pong balls to diffuse the light from the LED.  Nice build (I figure closer to $10 to build than $5).  Not … Continue reading

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Use a big steel bucket for a hose holder

I like this project, why?  Well the typical “hose rollers” leak after a few months.  So they are nice in rolling up the hose, but a pain if you don’t want the water leaking out with them.  So instead I … Continue reading

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3D Printed slider

Well made with PVC pipe for “sliding” on.  The author built this for DSLR cameras.  Me…this could make a good build for a simple CNC for kid projects.  Oh and I don’t think the author factored in the plastic in … Continue reading

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3D print Z-Axis for CNC

Nice build for an almost all printed Z-axis for a CNC.  Not so sure I would do this over building one from other materials.  I would be a bit worried about the flex on the plastic.  The author geared this … Continue reading

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Good tutorial on using Nokia 5110 with an Arduino

Nice tutorial on using this display with an arduino, these have come down allot in price ($3-4) lately.  Which is cheaper than some of the other arduino based displays I have seen out there.  I am curious how much space … Continue reading

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Simple personal solar powered A/C

Nice build with water cooler jug.  The only issue I see if finding a fan (if you are building something like this from scrape) that puts out a decent breeze at 5 volts.  Most of the fans I have are … Continue reading

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