Woodturning 600 pound Maple speaker cone, part 1
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Uploaded by Tony6093 on Sep 14, 2011
A big-leaf maple burl was wood-turned on a VB36 lathe to make a speaker cone for a home music system. The burl started at 600 pounds and was shaped to form a cone about 30" long and 28" at the mouth. The inner curve of the cone followed a parabolic shape to a 2" opening. Part of the challenge was cutting through stones that were imbedded as the tree grew. I hope you enjoy watching something nature grew metamorphose into a pleasant and useful shape.
http://www.abryhan.com/sb/
I apologize for the audio being out of synchronization with the video; it shifted somehow during the upload to YouTube...
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Well, interesting! However, I was wondering that why you didn't use the rasp type grinding wheel that they sell at woodcraft store that woodcarvers use to smooth out the unevenness on the balnk before you take all that time trying to bring the shape to a conical type. It would have made it much easier to load it on the headstock with lesser mass thatn trying to rough it out the way you did it.
phillywoodusa 4 days ago
I trimmed the burl sufficiently with a saw before I started filming. I use an Arbortech for many tasks but with the VB36 lathe there was no problem beginning the shaping on the lathe. I wanted to maintain as much wood as possible and free hand grinding might result in removal where it wasn't necessary. Loading on the head stock is also no challenge with the VB three-bold bayonet type mount; not the typical screw mount found on lesser lathes.
Tony6093 3 days ago
may I ask how long it took to rough in the blank
kipperdude1 4 months ago
@kipperdude1 That was a long process, about 40 hours before it turned as a smooth, round shape.
Tony6093 4 months ago
He's a Jardine's parrot.
Tony6093 4 months ago in playlist Woodturning 600 pound maple speaker cone