Build A Clock In One Hour for $1
The Clock Front
Yes, it is true!
This page describes how to build a neat little clock in about an hour
with your CNC machine for about a buck.
Interested? Read on!
You will need the following items:
CNC Router or Mill
Band Saw, Scroll Saw or similar
¼” Spiral Up Cut Router Bit (to pocket the back)
Engraving cutter (to machine the numbers)
11/32" Drill Bit(to drill clock shaft hole)
¾” thick chunk of wood at least 9” square
Stain or Paint of your choice
Varnish or Polyurethane
Dollar Store Clock (for the mechanism)
1 hour of your time ;-)
The process is very simple:
the GCODES for the front and back.
Modify them for feed rate and depth of cut (refer to the comments I
have put in the GCODES). Once you
are happy with the GCODES, select the stock you want to use for the
clock. I used ¾” pine and was
very happy with the result. The
finished clock will be about 6 ½” round, but you need some room to clamp,
so probably 8 or 9” square would be ideal.
the clock mechanism shaft hole.
Locate the best figure in the wood and drill a 11/32“ hole in the
the back pocket. Clamp the
wood to the machine good side down, and load the ClockBack.txt GCODE
file. Locate your ¼” spiral up cut
cutter in the centre of the hole, one paper thickness above the
the front numbers. Flip the stock over and locate the engraving cutter
in the centre of the hole one paper thickness above the stock. Load the ClockFront.txt GCODE
file. Engrave the letters.
out the clock. Decide on what
you want the clock to look like. I
used a compass and drew a circle around the numbers. I used a 3” radius, but I think a 3 ½”
radius would be better. Cut out
the clock with a scroll saw, band saw or coping saw. Yes, you could also have the CNC Router cut out the clock as well - go for it!
the clock. Sand off the burrs
around the edge of the back pocket, lightly sand the front (with the
grain) and the edges.
or paint. If you stain, the
numbers will show up darker. If
you paint, you may want to paint the numbers a contrasting colour. Varnish or Polyurethane is a good idea
if you stain.
mechanism from the dollar store clock. Carefully remove the hands and then unscrew the small nut
holding the clock mechanism to the cheap clock. Remove any hot glue that they used to fasten the clock. It is now ready to be born again in your clock!
the mechanism. There should be
about 1/8” of material between the front and the back of the pocket. This is just right to give the nut
something to grab, without showing lots of threads. First put on the small washer, then the
nut. Next the Hour hand, Minute
hand and then the second hand.
Insert the AA battery and set the time.
back and enjoy your new clock.
The Clock Front
This clock design is released free of charge to the Internet
CNC population by Steven Manzer October 2003. Note that the photo of the front looks like the clock is not centered - that is a due to holding the camera off to the side to reduce my shadow. The clock is in the center of the stock.If you have difficulty finding the clock drop me an email. I may still have some extras kicking around for a modest amount.
If more people share, we all win!
Viewed: times since October 1, 2003