General Category > Oddball
Elegent Scroll Frame Skeleton Clock
Kim:
Very interesting! I'll have to keep the rotary broach concept in mind. As well as EDM! That sounds like a whole different rabbit hole to climb down! :Lol:
Kim
Kim:
Next, I made four feet. These will attach to the (as yet unmade) wooden base for the clock. The feet have some fancy bead and cove work on them. I chose to do this with a series of form tools. These were all made from 3/8” W-1 drill rod where I milled a bit off the top and bottom to make them have a nice flat spot for the shape I want to make. Then I used various mills to create the geometry. Except for the center one (convex radius), which I shaped freehand on the grinding wheel, comparing it to a radius template. Then they were hardened, tempered, and honed a bit.
I made the feet from 1” 303 stainless rod. I started by making the basic shape with a standard tangential tool, then a grooving tool for the back part.
Then I started applying my form cutters, one at a time. I started with the 3/16” bead in the middle.
Then the 1/8” cove on the top (this will be the top of the foot).
And the 1/8” quarter round on the bottom (that’s 1/8” radius, right?).
Next, I drilled and tapped a 1/4-20 thread in the center, then parted it off.
After making all four feet this way, I made an arbor with a length of 1/4-20 threaded rod sticking out the end. I threaded the feet onto this to polish them up using little files, sandpaper, and some fine Craytex.
They came out pretty nice. The two on the left are upside down (i.e. you’re looking at the bottom), and the two on the right are right side up. I will be gluing some felt disks to the bottom of the feet. And the top of the feet will be nestled up to the underside of the base, so I didn’t spend a lot of time polishing those surfaces.
Wilding’s plan shows a simple countersunk hole through the feet for you to use a wood screw to fasten them to the base. I chose to use the 1/4"-20 threads. I’ll be using these short 1/4" hanger bolts to attach them to the base. With the threads, I’ll be able to use the feet to level the clock. That felt like a good deal to me, and it really wasn’t much more difficult.
The only part I have left to make is a travel lock for the pendulum.
And a ton of finishing, of course… :o
Kim
crueby:
Great start on your scale model of the Parthenon! Kidding. The feet look great!
You mention Craytex. Whats that?
Krypto:
Maybe Cratex?
Cratex is an rubberized abrasive. It's very handy for polishing and seems to last forever. The sticks are handy for "engine turning".
https://www.amazon.com/Walthers-SceneMaster-Cratex-Abrasive-Block/dp/B0050J3Z2Q
I've been using the above block for years. Also got the stick sample pack.
Kim:
Yes, I meant Cratex. Sorry :embarassed:
Spelling isn't exactly my long suit :Lol:
I purchased some square and some round sticks of various grades of Cratex at one point. It does work very well for polishing.
Kim
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