Instructables
Picture of The time-bomb clock
Ah, Saturday afternoon’s in front of the TV set with the Bug Bunny & Road Runner hour. A solid 60 minutes of high explosives and falling anvils. Here’s one for all the Wile. E. Coyote fans. This never fails to get a laugh and some sort of one-liner.
“What an explosive idea!”
“That blows my mind!”
“That’s a real blast!”

Uh-huh… I’ve never heard any of those before…

It’s a hot seller at my craft shows, yet it’s a simple enough project to require minimal tools. Without further ado, let’s put our Acme hard hat on and get to work.
 
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Step 1: Materials and tools

Materials

¾” dowel (48”)
¾” base material (see explanation)
¾” clock material (see explanation)
#8 - 1” Wood screws
Speaker hookup wire (18-gauge red and black)
2 @ 10 x 24 x ¾” brass screws
2 @ 10 x 24 knurled knobs
2 @ 10 x 24 brass nuts
1 7/16” clock insert
Wood glue
Cyanoacrylate glue (aka CA glue aka crazy glue)
Masking tape
Can of red spray paint

* The base and clock material can be anything. I’m using maple for the clock and walnut for the base because I like the colours and I happen to have some around. You could use oak, pine, even Russian birch ply which has very slim layers and looks good when well sanded. It’s your choice.

Tools

I will be listing hand tools, portable tools and large tool equivalents. This can be done with any of these tools. The hand tools will just take longer.

Table saw – Power saw – Miter saw – Hand saw
Drill – Drill press
Sander – Sandpaper
1 3/8” drill bit
3/16” drill bit
1/8” drill bit
Countersink bit (or 3/8” drill bit)
Metal saw
Ruler
Tape measure
Linesman’s pliers or needle-nose pliers (to cut the wire… a pair of scissors will do)
A wire stripper or a box knife (to cut the insulation off the wire)
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DukeMelrose5 months ago

I made one for my buddy's birthday. This was a cool project!

BombClock1.jpgBombClock.jpg
thorswolf (author)  DukeMelrose5 months ago

Excellent mod! Love the addition of the tape. Is that electrical tape?

Yes, I wrapped the "TNT" with electrical tape. I think it gave it a more authentic look.
EMTBOB1 year ago
i've made quite a few of these after seeing a picture a couple of years ago. I use pin nails to hold the dowel bundle together while the glue sets.
Ibanezfoo2 years ago
I made a few of these for gifts. The plans are in an old woodworking project book I have.
I can just imagine. Your recipient opening a nicely wrapped ticking gift to discover this.
thorswolf (author)  Ibanezfoo2 years ago
Hey that's excellent! I don't claim to be the originator of this. A friend had bought one of these clocks from God knows where, and I reproduced it. What's the name of the book??
Nick Engler's Weekend Projects Plus

http://www.amazon.com/Englers-Weekend-Projects-Woodworking-Technique/dp/B003JHFGFA/ref=sr_1_2?ie=UTF8&qid=1317445701&sr=8-2
thorswolf (author)  Ibanezfoo2 years ago
Thanks for that. I will definitely check it out.
You might want to query Amazon for "Nick Engler's Weekend Projects Plus" before clicking on the checkout button. Your call.
I got mine at a used book store so if you have any stores like that nearby I'd look there first. I got tons of woodworking books from the used book store.
CA Glue is the best super glue know as parfix cyanoacrylate glue. I visited one site which have detail information in table form check: http://www.parsonadhesives.com/parfix/ca-glue.htm
oddball74652 years ago
Where's the best place to buy the clock?
RabidAlien2 years ago
Hmmm....would gluing them in rows (3 sticks side-by-side, then two sets of two...once dry, glue the two pairs on top and bottom of the set of three) be easier, or just more time-consuming?

Loving this clock, and am seeing a trip to Lowes in my future!
H3xx2 years ago
I shall make some of these and sell them at the Airport! :D jk
thorswolf (author)  H3xx2 years ago
LOL! Might set a new record for the shortest-lived business ever!!
myles1362 years ago
I bundled the bottom 5 together and used it to make a template on two scraps of plywood, penciling the outline and sanding out the "half-flower" shape. Then made a cradle rack. I put the 2 bottom ones in and glue then add 3 in the middle and two on top. I either use masking tape to clamp or a large rubber band. With the cradle, I can spend a bit more time bushing glue where I want it. By the way... I got a small bottle of Gorilla Glue to try here and it was a disaster. It might work elsewhere, buy the label warnings are treacherous!
Here is another jig I made from scraps. I traced half of an assembled stack onto the edge of two pieces of plywood screwed together. Using a band saw, I roughed out as much as possible then sanded it to a perfect fit. Separate the two identical cradle jigs and attached to a base. I added a back piece to keep them lined up. Liquid Nails is PERFECT!!!!! It doesn't run. and has 10 minutes work time. Then wrap with several rubber bands and set aside. I can do 5 bundles in a half hour. Any excess can be pulled out with a folded business card or sanded off 30 minutes later.
PICT0300.JPGPICT0301.JPG
thorswolf (author)  myles1362 years ago
Do you have a photo so I can see what you;re doing? It sounds like you're doing something new with the most difficult part of the construction.
I will post a pic tomorrow. I also made a jig to guide the wood stock through the drill press process. It bolts directly to the table and that way I need no clamps. I make a mark at the measurement plus 1/16" for saw kerf and it takes only minutes to forstner drill all the faces.
With scraps of plywood, I bolted this jig to the press. It has a line on the right of the bit. I mark the piece with a tick at 3-9/16" (I am using bigger clocks) and then continue to maks more marks along the edge of the stock. Move the tick to the right side line and drill, then move to the next tick and drill. No need for marking centers, they are all equally centered and ready to be cut into individual squares.
PICT0297.JPG
I've successfully build similar as yours! I ran into few problem but I was able to work around to it just fine. Also, I can't find knurled nuts at Home Depot. I use alternative nuts and it looks not bad. See picture attached.

Thank you for wonderful instructables!
clock.jpg
AlbanyCountyFasteners on ebay has them at a great price and arrives in 3 days with cheap shipping. Listed as 10-24 Thumb Nut
thorswolf (author)  grantlairdjr2 years ago
Hey that looks great!! Thanks for sharing the picture. Did you find that you had any difficulties along the way? Did you think any part of the instructable or photos could have been improved?
Like you said in your instructables regarding put glue on dowels and put them together is hard part of all. I did not CA glue - I used Gorilla Glue's Dries White 2x which works good however it caused too much foam (expand) after drying. Next time, I need to use very little and see what happened.

Also, I am thinking about use plastic disposable cup to hold 7 dowels quickly while taping rather than hold with hands.

I got good deal with 1 7/16 clock insert from ebay - five clocks for 20 bucks. So, I plan to make couple more soon. And will do it better, too.

Another things is I can't find cheap 18g wires so I had to buy 18 ft 14g wires for 5 bucks each at Home Depot. So, I have plenty left to use them.

In case you can tell or not, I did not use different kind wood. All pine wood, I paint it with walnut stain (base) and other one with natural stain. (clock)

Smile!
myles1362 years ago
The American Birch advertised at a home store with a big blue and white lettered sign, actually comes from China. At least it does at the stores here. Even the web-site says American and made by Americans....WRONG. Very poor quality, but it does have many thin layers. The American Birch plywood at the store with the orange sign is real American wood, with thicker layers. This applies to all their hardwood plywoods!
thorswolf (author)  myles1362 years ago
I am very lucky to have a local supplier of hardwoods and hardwood plywoods: cherry, walnut, birch, maple... Really, really lucky!!
myles1362 years ago
Pricing out materials to make a few. The home stores prices for brass screws and nuts is OUTRAGEOUS. I am finding some better prices on the net, but I am brainstorming to find something cheaper still. Must say, I really like this one. Great Job!
sdudley2 years ago

I really dig this project and you did an excellent job with the instructable.  So much so, that I just had to make one too!  However, I couldn't help but think to myself... "Self - something is missing from this project.  But what could it be???"  ALAS... it came to me!

No Acme Time Bomb is complete without the likes of Wile E. Coyote!

Below are a few pictures of what I did to expand on the idea.  Thanks again for the great instructable.  I voted for it by the way!

 

001.gif002.gif003.gif004.gif005.gif006.gif007.gif011.gif
thorswolf (author)  sdudley2 years ago
Aw, cool! Is Wile E. laser etched or something? That's excellent. That version would definitely have problems crossing the border!!

I don't have a laser etcher and I am no artist so...

I found an image online, printed it out, placed the acrylic over it, then I traced it using my Dremel with a small etching bit.  (note: I used an inverse of the image because the image is on the back side of the acrylic and the letters would be backwards if I didn't.)

I was trying to make it look like an explosion behind him.  The great thing about this project is that no fancy tools are needed.  I used a hack saw to cut out the design and simply cleaned up the edges with a little sand paper.

Below is a link to an instructable I made that shows a "similar" idea to what I did here.

http://www.instructables.com/id/Edge-Lit-Mobile-Night-Light/

I must admit, I really enjoy using my Dremel (or any rotory tool) to etch out things like this.  It gives talentless chumps like myself a chance to do some pretty cool stuff and feel somewhat like an artist! 

Thanks again, I would never have thought to do it without your instructable.

By the way... I am probably going to make another since my wife has decided this is now hers!

thorswolf (author)  sdudley2 years ago
Thanks for that update. I really like where you went with this project.

BTW, your wife has great taste!! ;-)
sdudley sdudley2 years ago
Oh by the way, I took the advice from an earlier comment by "mwhitt" and used bicycle inner tubes for the straps. They worked great! I used 5/8 inch dowels (because I already had them) and my old bicycle innertube was the perfect diameter to stretch nicely over the bunch.

Thanks mwhitt!
Do you make international shipping? LOL.. Excelent. Hat off too.. i will start mine too..
mwhitt2 years ago
thorswolf, Couldn't you use tire inner tubes cut into 1" bands for clamps? I was thinking either a wheel barrow tube or perhaps a motorcyle tube. Matt W.
thorswolf (author)  mwhitt2 years ago
Those are good ideas. I use the tape because it's handy and, believe it or not, works rather well, event for gluing mitered box croners. Feel free to explore and modify any way you like!
Dr.Bill2 years ago
Do these sell good?
What do you get for one?
Good idea for a flea market.
thorswolf (author)  Dr.Bill2 years ago
They sell very well. A well made clock like this fetches around $25-$30.
This is so clever and appeals to my mischievous side... would you be offended or flattered if I ripped off your idea and made and sold them?
thorswolf (author)  WoundedEgo2 years ago
Instructables is just for that... sharing projects. Have fun!
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