How anti social!

[black5f]

An excercise in trying to mount concentric and mill. Thin one: the edge varies from 0.34 to 0.4 mm so not bad. But the mount was in wood (just a 26mm hole bored) so had some give. The top part was in ali to form a clamp to hold the 2p down, 25.6 hole with a small 26 dia 0.5 deep lip. Was trying to get the edges as thin as I could, must have over cooked it as on attempt the 1/16 end mill bit snapped. It only has 3mm flute length so I think it touched the clamp edge which was enough to stress it. T/C ouch! Took some vid of the v carving, mute your sound, it's terribly noisy!

http://www.youtube.com/watch?v=hK4I9wCRHyA

http://www.youtube.com/watch?v=qiEs_zk4BIY

Did this about 15 years ago, never used them, intended for an O guage model of George Stephenson, thats a Black5 BTW with unique valve gear. They were never used (yet) and they are taper fluted with 1/32 bit. They are out of 1/16 N/S. Never been cleaned up and still have the support tabs and smells of treflex, so nothing changes!



The profiled bits on this:
http://www.flickr.com/photos/4933236...57625918196683
Were done on this same machine as well, mild steel. Something else I have to finish!

But back in BC (Before Cnc), we had a device called a file :-)

http://www.flickr.com/photos/4933236...57625918196683

Tom