Official Luthiers Forum!
http://www.luthiersforum.com/forum/

Purfulings?
http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=31531		 Page 1 of 1
Author:  B. Howard [ Sat Mar 19, 2011 7:38 pm ]
Post subject:  Purfulings?
How many out there make their own purflings? I am planing on doing my first few guitars with the same binding and purfling details. I am planing to glue layers of walnut and maple veneer to a piece of mahogany and cut them on the band saw and then sand them to dimension to make my bindings with side purflings attached. I want to use the same material and detail for my purflings on the plates and will need to make them from the same veneers. I can do it with a table saw, but I waste out as much lumber as I use in that scenario. Hate to lose 50% of any stock. Could do it with the band saw maybe. Definitely less waste from the actual cut but I am afraid the edges will be torn out requiring the strips to be ganged together and the edges planed smooth. Now I'm back to 50% loss. So my question is how do the rest of you do this? I can imagine some type of riving jig with a fence and a utility blade but I don't know how well it would work. Thanks in advance.
Brian
Author:  Beth Mayer [ Sat Mar 19, 2011 9:30 pm ]
Post subject:  Re: Purfulings?
Check out Burton LeGeyt's documented build thread. One of the first things he does is to show how he makes his own purflings.
Author:  Billy T [ Sun Mar 20, 2011 1:45 pm ]
Post subject:  Re: Purfulings?
Do you have a link Beth?
Author:  Beth Mayer [ Sun Mar 20, 2011 4:46 pm ]
Post subject:  Re: Purfulings?
viewtopic.php?f=10117&t=29270

Burton is amazing! I'm sure you'll enjoy the entire thread, but I think the first thing he does is to make and cut the purfs. [:Y:]
Author:  Brian Forbes [ Sun Mar 20, 2011 8:04 pm ]
Post subject:  Re: Purfulings?
I tried making my own purfling...and now I buy it from Grizzly.com at $1.25 per strip when you buy at least 5. It's cool to make your own custom combonations I guess, but for basic BWB its way worth it to buy from Grizzly. I really didnt put my entire heart into making my own strips though. I glued together three pieces of veneer in a BWB sandwich, they were 8inches by 33 inches by 0.020 each piece. I did walnut outsides with a birch inside. I then worked up this half assed violin purfling cutter and thought I could rip strips off of the sandwich and thereby have zero loss to sawing. That is the big issue, making it economical and not losing half the material to the saw blade. I would love to have one of those huge hydraulic paper cutting knife presses, then it would be a snap to guillotine off strips from the sandwich. The problem with the purfling cutter was it would follow a grain line rather than cut straight across the piece. I thought I was really on to something and it all collapsed in front of me at the last operation. Tragic.
Author:  B. Howard [ Mon Mar 21, 2011 6:22 pm ]
Post subject:  Re: Purfulings?
Yes, The old Dutchman inside of me can't get past almost 50% of my stock going into the dust bin. I looked at the build mentioned and that is similar to the way we do phenolic backed stuff at work, but we are making strips much wider than what we need for purfling. I have a laminate slitter with carbide wheels, it cuts P-Lam quick and easy with almost 0 loss. I never thought of it until now so when I get a chance I will see what it does to a piece of plain old wood veneer. A friend also suggested a rotary cutter like they use for scrap-booking with a long straightedge, will see how that does also.
Brian
Author:  meddlingfool [ Mon Mar 21, 2011 6:31 pm ]
Post subject:  Re: Purfulings?
A tablesaw and a fret slotting blade reduces waste quite a bit.
Author:  B. Howard [ Wed Mar 23, 2011 8:01 pm ]
Post subject:  Re: Purfulings?
meddlingfool wrote:
A tablesaw and a fret slotting blade reduces waste quite a bit.



Are you using the one from SM?
Author:  meddlingfool [ Wed Mar 23, 2011 8:37 pm ]
Post subject:  Re: Purfulings?
LMI I think. It's the one that requires stiffeners. I feel that it is a better idea then SM because if the blade wears out past re-sharpenability you can get a new one cheap and keep the stiffeners. I use it to cut all my purflings and bindings. My bindings are always made from side offcuts, so I'm only ever cutting .100 at the most. You need a zero clearance insert of course, easy to make. And I use a featherboard as well. I also clamp a piece of MDF on the fence at the same time so the purfling does not slip under the gently rounded fence bottom. It can smoke a bit when cutting lots of oily wood and get a bit gummy but I just scrape it off after and crack a window. But you would be unlikely to have that trouble at all if you're only cutting purflings. I still use the blade for fret slotting as well with no trouble.
Author:  WaddyThomson [ Wed Mar 23, 2011 9:25 pm ]
Post subject:  Re: Purfulings?
Shane has fret saw blades as well. His also require stiffeners. I have been using his, and it's excellent.
Author:  Billy T [ Thu Mar 24, 2011 10:24 am ]
Post subject:  Re: Purfulings?
Beth Mayer wrote:
http://www.luthiersforum.com/forum/viewtopic.php?f=10117&t=29270
Burton is amazing! I'm sure you'll enjoy the entire thread, but I think the first thing he does is to make and cut the purfs. [:Y:]


Thanks Beth! That is a great thread!
Author:  B. Howard [ Sun Mar 27, 2011 7:15 am ]
Post subject:  Re: Purfulings?
Thought I'd post this for anyone else interested. A laminate slitter really destroys the veneer. A rotary cutter and a straightedge can be made to work, but it takes a lot of care and concentration as the wheel wants to follow the grains, this was more true with maple than walnut. A fret slot blade is on my list of future purchases, so for now I'll just acccept the waste factor and move on.
Brian
Author:  Beth Mayer [ Sun Mar 27, 2011 9:52 am ]
Post subject:  Re: Purfulings?
I just read about a hand saw called a veneer saw in a book about tools. They picture a large straight-edged board which is used as both a fence against which to register the cut and also to hold the veneer piece flat. Do you think that would work? I haven't seen one in person, but I assume the kerf would be very thin if it is billed as a "veneer saw". This was in a general woodworking book, not a luthiery text.
Page 1 of 1 All times are UTC - 5 hours
Powered by phpBB® Forum Software © phpBB Group
http://www.phpbb.com/