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Hidden/Secret Compartment in Wall Cabinet

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Project by RSmike posted 03-07-2012 01:25 PM 5804 views 10 times favorited 16 comments Add to Favorites Watch

This cabinet is located in my 5’x5’ bathroom. The cabinet is pretty boring on the outside. It’s the surprise on the inside that most find cool. Inserting a shelf pin into the topmost rear hole runs a motor that raises a sliding panel. Insert the shelf pin into the next lowest pin position and the panel closes.

The whole lift mechanism is built into the wall. (Yeah yeah I know….I’ll be cutting into drywall from the opposite side when it breaks.) The power supply and control relays are in the basement.

I know, I’ve given the secret away. But it’s not what’s in the compartment….it’s the fact that it’s there. To date the compartment has remained empty.

The glass shelves are really nice. I’ve found that putting glass in the bottom of my bathroom cabinets, even under the sink, allows for easier clean up. Somehow it gives it also gives it some class. It also prevents cans and other items from ‘blocking’ into the topcoat.

The glass shelving also lets light through from above to the lower shelves which seems to keep the inside of the cabinet brighter.

The cabinet has two coats of latex primer, two coats of plain semi gloss white latex, and on top of all that are two coats of water based poly. This really seems to give the whole finish some depth.

Enjoy!

-- Mike





16 comments so far

View Ben Simms's profile

Ben Simms

191 posts in 957 days


#1 posted 03-07-2012 01:35 PM

This is one of the coolest things i have ever seen!

-- I played with Legos as a kid and I never had the part I thought I needed, so I learned to improvise. Now I'm an engineer with a woodworking hobby.

View Gabe C.'s profile

Gabe C.

288 posts in 1007 days


#2 posted 03-07-2012 01:41 PM

Yeah, that is really cool. Thanks for sharing…now get this off the internet before the feds get wind of it!

-- If I could just get this whole "Time/Money" problem figured out...

View kaschimer's profile

kaschimer

89 posts in 1055 days


#3 posted 03-07-2012 02:11 PM

That’s wicked. I totally want to work on a project with hidden compartments.

-- Steve, Michigan - "Every piece of work is a self portrait of the person who accomplished it - autograph your work with excellence!" - Author unknown

View ChrisK's profile

ChrisK

1168 posts in 1747 days


#4 posted 03-07-2012 03:18 PM

Really slick. Were are the limit switches and motor from? Surplus? Or leftovers?

-- Chris K

View Douwe's profile

Douwe

62 posts in 951 days


#5 posted 03-07-2012 04:21 PM

This is great! Thanks for sharing this secret.

-- Douwe

View Tokolosi's profile

Tokolosi

667 posts in 1021 days


#6 posted 03-07-2012 05:04 PM

I thought hard on what to say about this but in the end I’m going with my first thought: “COOL!”

That is so neat!

-- “There is nothing like looking, if you want to find something. You certainly usually find something, if you look, but it is not always quite the something you were after.” ~ JRR Tolkien

View scottishbob's profile

scottishbob

144 posts in 953 days


#7 posted 03-07-2012 05:15 PM

bond ,james bond 007 … very neat

-- Ireland, Galway .... fingers! "we dont sell them"

View Mainiac Matt 's profile

Mainiac Matt

4046 posts in 994 days


#8 posted 03-07-2012 06:17 PM

I like it a lot…

I can’t believe you used a ball nut and ball screw…

that’s pretty premium linear motion hardware for a pretty simple linear motion application.

If you ever get asked to do one for hire, an ACME lead screw and Derlin nut would accomplish the same end at 1/4 the cost. Maybe even better as the ball nut should be oiled after a few hundred cycles :^)

-- Pine is fine, but Oak's no joke!

View Tim Dahn's profile

Tim Dahn

1471 posts in 2231 days


#9 posted 03-08-2012 12:22 AM

You had me at Hidden/Secret but MOTORIZED too?

-- Good judgement comes from experience and experience comes from poor judgement.

View pitchnsplinters's profile

pitchnsplinters

262 posts in 2103 days


#10 posted 03-08-2012 01:45 AM

Huh?

-- Just 'cause a cat has kittens in the oven, it don't make 'em biscuits.

View KMT's profile

KMT

591 posts in 1328 days


#11 posted 03-08-2012 03:04 AM

Ingenious!

-- - Martin

View JohnMeeley's profile

JohnMeeley

253 posts in 999 days


#12 posted 03-08-2012 04:30 AM

DAAAUUUMMM!
WAY TOO COOL!

-- "The greatest pleasure in life is doing what others say you cannot do."-Walter Bagehot

View lightweightladylefty's profile (online now)

lightweightladylefty

2657 posts in 2378 days


#13 posted 03-08-2012 05:22 AM

Mike,

You need to get to work on a hidden compartment big enough for a couple of people! What an incredible secret! Thanks for sharing. Well, I guess that means it’s no longer a secret.

L/W

-- Jesus is the ONLY reason for ANY season.

View Woodwrecker's profile

Woodwrecker

3620 posts in 2241 days


#14 posted 03-08-2012 05:33 AM

Definitely “Daily Top 3” worthy!
I’ve done hidden compartments, but never a motorized one…hmmm. lol

-- All glory comes from daring to begin.

View RSmike's profile

RSmike

21 posts in 1355 days


#15 posted 03-08-2012 07:29 PM

Thank you for all the positive reports.

The parts are all surplus. I work in a large industrial facility as a controls engineer. The limit switches and prox switches were scrap parts from an industrial piece of equipment.

The whole thing works based upon two proximity switches that are recessed behind the ‘up’ and ‘down’ shelf pin supports. (I guess I forgot to mention that. ) These devices can sense metal. When a shelf pin is placed in the bottom hole the prox switch senses this and energizes a relay to drive the motor down. When the pin is placed in the top hole the prox sense this and drives the relay such that the motor moves up. The relays form a basic forward/reversing circuit electrically interlocked to prevent problems in case someone puts in both an ‘up’ and ‘down’ pin. The limit switches are there to stop the door once it opens or closes to the proper position.

The motor/ball screw assembly is scrapped from a product that we make. It’s a fairly high end considering the equipment I pulled it from was pretty consumer related. Probably why we don’t make that product any more. Even I was surprised to see such a fancy system inside something that looked so simple.

The system only operates if power to the light over the bathroom sink is turned on. I did this to prevent power from being constantly applied to the system. I didn’t like the idea of having wires and motors in my walls….even if they are low voltage.

I really need to put something of value in there. ....at least for the next person to find.

RSlater,
RSmike

-- Mike

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