Instructables
Picture of Cast Concrete Desk Clock
Finally moving into a new place where I can have more than a shoe box-sized workshop.  I decided to make this clock so I don't have to drop and or get my phone dirty to check how late I've been puttering around.  Plus, being a solid chunk of concrete, I won't have to worry about it accidentally getting knocked off the shelf.  Making this takes some patience, but it is doable.  I may update or refine this Instructable down the line, but for now I like the more rustic look and feel of it.  Enjoy!

Safety gear!!  Definitely use hearing and eye protection, as well as gloves.  A dust mask or better is a good idea as well.  Working with the melamine and power tools, adhesive caulking, concrete and dyes can be all sorts of messy and dangerous.

Materials:
3/4" melamine
1 1/2" drywall screws
drill/ screw driver
100% silicone caulk (not white)
razors/ exacto knife
scrap of rigid foam insulation
saw (table saw; (or circular saw and 4' straight edge and clamps)
framing and/or speed square
tape measure
pencil/ fine marker
protractor
wood dowel 3/8"
clear packing tape
cork board
cement
pigment
5 gallon bucket
trowel or similar (to mix with) OR  concrete or mortar mixer (I used a hand held paddle type mixer)
clock movement
inlays for hour markers (I used Euro coins)

Optional:
wet stone polisher and diamond polishing pads
concrete sealer
decorative aggregate (I used smashed black granite)
dremel rotary tool
glass fibers
compass (the geometry kind, not the "where am I?" kind)
 
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I love what you did with the coins! This is very cool all around!
TeemoSto (author)  Penolopy Bulnick11 months ago
Thanks much! Yeah I was excited when I got the idea. The coins were leftover from a trip to Ireland I took 5 years ago, and I can't find anyone around to exchange currency in coin form. So on to another purpose in the clock! (fun fact - I tried to use coins to correspond with the hour. i.e. 2002 coin for the 2, etc. I didn't get them all, but most anyway)
TheMrCOOLguy211 months ago
I will need to make this
TeemoSto (author)  TheMrCOOLguy211 months ago
You should; fun and rewarding little project that is only limited by what you come up with really. Enjoy, and feel free to pick my brain; I'll try to help as best I can!
bob303011 months ago
I love clocks! To me they are a very practical think to collect or build. I've made a couple of clocks myself. Thank you for posting your unique clock!
TeemoSto (author)  bob303011 months ago
I agree; making things with a purpose is the way to go! Thanks for the comment, glad you enjoyed it.
JAHcob1811 months ago
What mechanism did you use for the clock gears?
TeemoSto (author)  JAHcob1811 months ago
http://shop.hobbylobby.com/products/3/4-mini-quartz-clock-movement-with-hands-44370/
This is very similar to what I used. Apparently I should have been saying the clock "movement" instead of "mechanism" but I didn't know until finding that link for you just now haha I actually took the entire mechanism/movement kit off a clock with a wood base my Grandfather had made years ago, because it wasn't in use anymore and the hands matched the golden color of the coins. Hobby stores or websites have a ton of options to pick from if you want to mix and match hands and the movement itself.