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CNC'd Loco Wheel & Earning Brownie Points
philf:
--- Quote from: Stilldrillin on April 04, 2012, 04:41:41 AM ---Peter, Phil.
Yes, I have to agree, on an aged door. :thumbup:
With a "Victorian", stainless plate and Yale lock...... :D
David D
--- End quote ---
Hi David,
To quote the Yale website: "Linus Yale Sr.'s son joined his father in the business in 1850 and perfected and patented his father's pin tumbler cylinder lock and became the considered locking expert of his time." (I'm sure mine doesn't date back to any time earlier than the 1960s or 70s - a couple of years ago I had to turn new pins for it out of bronze welding rod because it had become unreliable - it should be OK for another 30 years or so. :thumbup:)
The door plate is actually brass! I satin finished it with fine wet & dry before applying a coat of lacquer. It was going dark when I took the photo so the colour doesn't show up well.
Cheers.
:beer:
Phil.
Stilldrillin:
Brass!! :bugeye: Ah...... That's more like it! :clap: :clap: :thumbup:
I'm wrong on all counts, again! :Doh:
Incidentally, we've got the same weather....... And a garden crew stripping the turf off my front lawn......... :(
David D
Bluechip:
--- Quote from: Stilldrillin on April 04, 2012, 05:54:55 AM ---
And a garden crew stripping the turf off my front lawn......... :(
David D
--- End quote ---
:scratch: :scratch:
Wossat then ??? AFAIK if the turf is gone, you don't have a lawn anyway ..
Dave BC
philf:
I had another go at my loco wheel today.
I downloaded a free 30 day trial of MeshCam last night and was quite impressed of how easy it was to get some output from it.
I used the same stl model which was used to generate the code from Aspire.
MeshCam generated two files for me - roughing & finishing.
The Aspire generated code took 19 minutes to finish the wheel. The MeshCam files a total of 80 minutes! (44 for roughing and 36 for finishing.)
The finished item looks much better! :thumbup: The rim would be good enough to run on (if it wasn't made of MDF) and the roots and rads on all the spokes are finished properly. (There is a mystery pyramid shaped lump on one of the spokes that wasn't cleaned up (on the spoke at about 7:30 near the hub). :scratch: )
First picture is of the wheel after roughing:
Next is after finishing:
Finished Meshcam wheel:
Finished Aspire wheel - note the lack of full radii on the section of the spokes and odd terminations of the fillets on both ends of the spokes:
I tried to video some of the process (turn the volume down - it's very noisy with the CNC and vacuum cleaner running and I don't know how to edit it!):
http://www.flickr.com/photos/16648905@N04/7048228979/in/photostream
I'm sure I could dramatically reduce the cutting time by roughing the spokes with Cut2d and finishing with MeshCam after adjusting some of the settings. I think it would still take too long to cut out of steel. :(
Next thing to try is one without the radii on the spokes - I think it's these that take most of the time and the wheel may look OK without them.
Phil.
Brass_Machine:
Hey Phil...
What are you using for a CNC? Have you answered that already? I am losing it...
Eric
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