RICK FITZPATRICK said:
Hello Light, thats wierd. About an hour ago I was searching the net for "machining abalone".
A post by you on HR was listed so I went to it. I was going to respond but figured the post was
so old you would think I was crazy. Anyway, so you build guitars huh? Cool. How bout some tips on abalone? Ever machine it from the shell? I read that the dust is real poisonous.
Pearl dust is unbelievably hazardous. It is so fine it will go right through a mask, and the particles are very sharp, so it tears up your lungs something fierce. Larry Robinson (who is one of the best inlay artists in the world) has a dust collection system built into his v-board (the little board with a notch on the end which you use to cut pearl) so that all of the dust gets carried away. He has a mesh screen over the intake so he doesn't loose small parts. If you don't have a dust collector, you should really be using a respirator with the purple cartridges (organic vapors, you know). Horrible stuff.
We used to have a pearl artist who worked for us, and she would sometimes split it from the shell. We still have a few shells lying around the shop (we never throw anything away), but rarely use them. One of our repair folks did have to cut out some extra thick pieces for an old harp mandolin she was working on, but that is rare.
On the rare occasions when we do pearl work ourselves (it is toxic and very difficult to get good at, so why not get someone else to do it), it is all hand cutting, just with a jewelers saw and some files. We rout out the cavities free hand with a laminate trimmer, for the most part (we HATE dremel tools, the bearings just suck). Most of our pearl work is the repetitive logos on our headstocks, so we get that done by Precision Pearl down in Texas. They are owned (at least in part) by a guy named Tom Ellis, and they do CNC machining of pearl, and they do it really well. It is cheap too, as long as you are getting enough pieces done.
If you need a good source for pearl,
www.lmii.com has a nice selection and a small minimum order. If you want a lot, you need to talk to Chuck Erickson, aka The Duke of Pearl. He is very knowledgeable, and a very memorable character. He is one of the inventers of laminated and veneer pearls. Most of the big factories, and lots of small builders as well, are using the laminates for all of their pearl purflings. Old fashion planks are still popular for artistic inlay though, unless you need a really big piece.
RICK FITZPATRICK said:
So you like the Grizzly huh? Never used one, or seen one for that matter. We use a Powermatic, and 2 deltas at work for raised panel, and architectural millwork. I really like the powermatic. Its much heftyer than the small deltas. But I'll check the grizzly out. thanks. Probably will use the bucks to by parts for a diy CNC first though. I'm REALLY jazzed about that. Small CNC for engraving, laser work, routing and whatever else I can make it do.
Heres a cool site for CNC DIY'ers, if your interested.
http://www.cnczone.com/forums/forumdisplay.php?s=&forumid=5
fitZ
We have been very happy with the Grizzly. They sell some of the same cheap imported crap that other importers do, but when you get above the bottom part of there line, they make some really great machines at really great prices. We got their large spindle sander last year, and my father (who owns our shop) can't stop gushing about the thing. He says he can't figure out why it took him five years to actually decide to buy it. Building guitars, we have a lot of hollow curves to shape, and the spindle sander is amazing for that. Now the shaper we have is a rather small one, and if you are doing big stuff, or are used to a big Powermatic, you probably would need a bigger one than we got, but for what we are doing (roughing out guitar necks, and a lot of rub collar jig work) it is a really great machine.
I build electric guitars with 5/8" thick figured maple tops, so the Grizzly machine I want is the
20 inch jointer. A huge machine, but one which could actually joint the gluing surface of my tops (which never, ever stay flat once they are glued up). I also would love to get the
Wood Mill, but I am not entirely sure what I would use it for. I am sure I would find something. What can I say, I am a tool junky, and I never saw a tool I didn't want to own. And I already have all the cheap ones, so now all I can do is lust for the really expensive ones.
Building your own CNC seems like a cool project to me. We have a luthier friend who, back in the early eighties, was so frustrated by using other peoples Timesavers (oscillating wide belt thickness sander), that he built his own. He had never done any machine work before in his life, so he took a machine class, and his project was his own timesaver. The damn thing is at least as accurate as a real Timesaver, and considerably more accurate than most of the copies I have seen. His machine will give a consistent thickness on a 0.090" piece of wood, three feet long and two feet wide, and be accurate to within 0.001" on the whole board. And he built it himself. Damned impressive, if you ask me. He bought his Fadal, though.
O.K., enough high jacking of the thread.
And now back to your regularly scheduled discussion.
Light
"Cowards can never be moral."
M.K. Gandhi