<![CDATA[Locke Technology Laboratory - Home]]>Thu, 19 Nov 2015 15:23:16 -0800Weebly<![CDATA[Home Made Drill Press From Scrap Particle Board]]>Wed, 03 Jun 2015 05:01:49 GMThttp://locketech.weebly.com/home/home-made-drill-press-from-scrap-particle-board
I was thinking to buy another drill press but thought I'd try to make my own for fun. I didn't use any plans and kind of designed it as I went along.  I built everything around the fact that the drill had threaded holes that a perpendicular handle can mount.  A box was built around the drill and bolts mounted into these threaded holes.

After everything was finished, it works alright compared to a store bought. Regular drill press from store much more powerful, more rigid, and less noisy. A fun project nonetheless.
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<![CDATA[Bathroom Cabinet Remodel: From Shelf to DIY Drawers]]>Wed, 20 May 2015 07:38:48 GMThttp://locketech.weebly.com/home/bathroom-cabinet-remodel-from-shelf-to-diy-drawersMy bathroom counters were constantly cluttered from my toiletries.  It has a his and her's sink with a cabinet in between that is shelf space which is a terrible design.  Drawers made the most sense in this situation.  IKEA had pre-made drawers that could convert a shelf to a drawer however we found out they were a couple inches too narrow and I would still have had to open a door to pull out the drawers.  I wanted drawers and so I decided to make them myself.  Luckily I had found IKEA had drawer faces that matched the exact dimensions of the cabinet door therefore everything was designed and built around these drawer faces.

The hardest part of this project was simply measuring every minute dimension required to figure out the maximum size of the drawers.  After all the measurements were taken, the rest was pretty straight forward. 

The drawers were built from white melamine fiber board and the bottom is a 1/4" MDF whiteboard.  The exposed surfaces were covered with more melamine veneer.

Unfortunately the drawers were made 1/16" too wide which was just enough to cause the drawers to jam.  I had to shave a very shallow notch out of the drawers such that it would slide easily --hardly noticeable.
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<![CDATA[My First Marble Toy]]>Sat, 18 Apr 2015 07:04:01 GMThttp://locketech.weebly.com/home/my-first-marble-toyAfter watching some amazing video's from Youtuber Denha who makes very creative marble toys, I was inspired to try my hand at my own marble toy.  This marble toy was made from scrap wood as a birthday gift to my father-in-law.  I built from sight a copy of one of denha's marble lift mechanism.  I used a barbeque skewer as a drive shaft for all of the discs to mount.  I used a top of a 2 liter soda bottle to make a quick and easy swirling funnel.
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<![CDATA[My Invention For a New Air Lift Pump!]]>Tue, 27 Jan 2015 09:34:59 GMThttp://locketech.weebly.com/home/my-invention-for-a-new-air-lift-pumpI have been working and thinking hard about setting up an aquaponics system in my kitchen for a while now.  I decided to build the aquaponics system in a piecemeal fashion. The first piece experimenting with pumps.  Currently all I have is a fish tank.  With off the shelf products, the standard water filtration centrifugal pump in my fish tank constantly needed maintenance.  The filter had to be changed quite regularly because it would clog easily.  I had begun experimenting by prototyped several air lift pump designs including the standard air lift and an air siphoning pump which I later discovered was called a "geyser pump" I seemed to have re-invented it during my experimentation process.

With further development I realized that the problem with geyser pumps is that most of the energy in the air that is being pumped to the depth of water is wasted as it rushes out to push a small volume of water out of the pipe.  This led me to think of a more efficient design that would behave more like a Super Soaker toy such that the volume of water being pumped out is equal to the volume of air that it displaces.  My thinking was if a closed chamber of liquid with a pipe inserted into it had air pumped in it the liquid would have no place but to go upwards and be pumped out of the pipe to a higher head, add an upside down siphon to this pipe (to make it a geyser pump) and as the "air level" reaches the siphon portion of the geyser pump, the air will rush out and at this point the pump chamber should be refilled.  To switch from sealed to unsealed, a simple checkvalve is used.  I was elated to think of this idea and to prototype it and find that it works brilliantly.  I was less pleased to find this exact idea already published and patented.

This is a prototype of my air powered water liftingpump. Invented first piece in 2010 which turned out to be called a "geyser pump" patented 2008. My design evolved into this last year but somehow this was patented 1973. Sometimes older tech is better :)  Even though I'm not the first to think of this idea, I seldom see it in aquaponics applications which is what I intended it for.  It pumps at a much higher head and at a much faster rate than typical airlift pumps or geyser pumps.
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<![CDATA[Whine-O-Tron 555 timer Electronic Noise Maker Toy]]>Thu, 15 Jan 2015 08:54:14 GMThttp://locketech.weebly.com/home/whine-o-tron-555-timer-electronic-noise-maker-toy
This is an electronic noise maker toy I designed and built as a gift for my sister-in-law.  It is made from a 555 timer and a few RC circuits.  The potentiometers change the pitch and the character of the whining. The buttons and the on/off switch trigger the noise.
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<![CDATA[Ebola Grand Challenge: The Results]]>Wed, 24 Dec 2014 08:17:27 GMThttp://locketech.weebly.com/home/ebola-grand-challenge-the-resultsUSAID picked 3 ideas to fund. --None of which were mine :P  (they said they don't contract with individuals anyways)... but on the bright side, I believe they were influenced by my pitch and are pursuing partnership in companies that have the same gist as my idea as far as off the shelf Phase Change Material packs and integrated cooling goes... Apparently I the other 3 finalists I was competing with were John Hopkins Bioscience dept, and two other bio-tech companies. That is intensely fierce competition for just me to go up against!  In that sense I feel quite proud.

http://www.usaid.gov/…/dec-12-2014-united-states-announces-…

https://openideo.com/challenge/fighting-ebola/impact/usaid-s-rajiv-shah-thanks-the-openideo-community

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<![CDATA[DIY Dust Separator / Shop Vac Xmas Build Galore!!!]]>Wed, 24 Dec 2014 07:47:18 GMThttp://locketech.weebly.com/home/diy-dust-separator-shop-vac-xmas-build-galoreThis is Mark-2 of my invention to combine a cyclonic dust separator with a shop vac to have secondary water filtration for fine particulates. I made all of these out of mostly cd cases, pvc pipes, and 3 gallon frosting buckets. It works great! I plan to publish instructions on instructables later.  This build didn't actually incorporate the water filtration stage as I did not have time to miniaturize that section before my deadline.  I built a quick and dirty roller cart for the buckets using spare particle board and swivel wheels I got from a plastic drawer set.  Each vacuum was a bit unique as I had obtained the motors from different types of vacuums obtained at Good Will. 

I built several right before Christmas as gifts for my family and friends.  They loved it!
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<![CDATA[Ebola Grand Challenge: After the Pitch]]>Fri, 14 Nov 2014 08:10:45 GMThttp://locketech.weebly.com/home/ebola-grand-challenge-after-the-pitchThank you everyone for your encouragement. I think I did pretty well even though my pitch was longer than 3 minutes and a moderator cut me off. But I got all my info out during the 5 minute Q&A session. It was a real honor to be able to talk to representatives from so many big govt. organizations and manufacturers and in this sense, I already win from the grandchallenge. I seriously wouldn't have had this opportunity if it wasn't for my wife notifying me of the challenge and frantically helping me last minute to make the presentation. I feel quite lucky to be picked. Now I wait to see what happens.

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<![CDATA[Ebola Grand Challenge: USAID Picked My Idea as A Finalist!  ]]>Tue, 11 Nov 2014 08:06:45 GMThttp://locketech.weebly.com/home/ebola-grand-challenge-usaid-picked-my-idea-as-a-finalistUSAID picked my idea as a finalist and they want me to pitch it in Washington D.C! I don't think I've ever given a pitch before. Some reason I feel quite nervous.

The challenge was to redesign the hazmat suits that Ebola caregivers wear as they can not wear the PPE for longer than 45 minutes at a time due to heat stress
.  My wife asked me to participate in this challenge and I happily obliged.  I'm so glad that I did!  You can check out the challenge and my idea submission in the links below:
http://www.ebolagrandchallenge.net/

https://openideo.com/…/active-or-passive-cooling-built-into…

This is what USAID sent me:
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<![CDATA[Magic Box Build: Rotating Night Light Lantern]]>Sun, 29 Jun 2014 06:47:01 GMThttp://locketech.weebly.com/home/magic-box-build-rotating-night-light-lantern
My friend invited me to their son's 1st birthday party.  I had decided to build a nice gift for the kid, a magic box.  It is a rotating night light lantern that is powered by the heat given off from a light bulb inside.  As the lamp rotates, it projects colored light onto the walls of the lantern. 

I had sent my friend a 2d CAD file of the rotating lantern and he had it laser cut out of clear PET.  The wood is from a scrap bin near my work, it had very nice finished wood inside so I didn't have to sand or stain the box in the end.  I took plastic hanging folder dividers and cut squares out of them to make the walls of the lantern.  I then glued white gift wrapping tissue to the plastic using spray adhesive to give the lantern a frosted look so the light can be projected onto it.  The lantern pivots on a clothes hanger stand with a ball point pen on top.  The light bulb and socket itself was taken out of an old microwave.

The images of the lantern were cut out of wrapping paper and taped to the rotating cylinder so the cutouts would be projected. 
I used the colored plastic from the hanging dividers to give color to the images.
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