Rasp Making

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Rasp Making

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constructordeguitarras

Posts: 1676
Joined: Jan. 29 2012
From: Seattle, Washington, USA

Rasp Making

I received an email from Highland Woodworking with a link to a similar video on the making of these rasps in France. Their manufacture reminds me of the way some of us make guitars, with a combination of machinery and hand work. I thought it was neat the way so much of the work is done by eye.

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Ethan Deutsch
www.edluthier.com
www.facebook.com/ethandeutschguitars
www.youtube.com/marioamayaflamenco
I always have flamenco guitars available for sale.

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 21 2012 16:29:50

Peter Tsiorba

Posts: 130
Joined: Oct. 27 2009
From: Portland, Oregon Pacific Northwest

RE: Rasp Making (in reply to constructordeguitarras)

High quality rasp is a joy to use. "By eye" is right, and as long as that eye (and hands, and mind, and over-all body memory) is trained, we all know the quality can go as high as one is willing to take it, and then some.

I heard that these, also French, rasps are even better than Aurious.

http://youtu.be/_pzK2Ei19t4

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Peter Tsiorba
Classical-Flamenco-Guitars
tsiorba.com

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 21 2012 19:32:16

Peter Tsiorba

Posts: 130
Joined: Oct. 27 2009
From: Portland, Oregon Pacific Northwest

RE: Rasp Making (in reply to constructordeguitarras)

Speaking of video links, how is it supposed to be done so the video player appears in the thread? When I add a link, it stays a hyperlink. What's the trick? Sorry for a non-rasp question...

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Peter Tsiorba
Classical-Flamenco-Guitars
tsiorba.com

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 21 2012 20:21:36

constructordeguitarras

Posts: 1676
Joined: Jan. 29 2012
From: Seattle, Washington, USA

RE: Rasp Making (in reply to Peter Tsiorba)

Hi, Peter.
It seems that each youtube video can have several addresses and only certain ones will do what you want it to in your post. Don't use the link youtube offers you; use the one that's in your browser address box when you're watching it. I learned this from Foro administrator Simon. See how the address for this video is different here:

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Ethan Deutsch
www.edluthier.com
www.facebook.com/ethandeutschguitars
www.youtube.com/marioamayaflamenco
I always have flamenco guitars available for sale.

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 21 2012 22:53:18

Flamingrae

Posts: 220
Joined: May 19 2009

RE: Rasp Making (in reply to constructordeguitarras)

This is top stuff - great info - how to feel humble and very grateful. I'm going to save both these links as I teach a bit of tool making now and then. As it happens, I have an Auriou rasp that I bought 25 yrs ago. At the time, I was told they were hand cut and I always wondered how. Now I know - cheers people.

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 22 2012 0:10:40

Sean

Posts: 672
Joined: Jan. 20 2011
From: Canada

RE: Rasp Making (in reply to constructordeguitarras)

Peter not sure exactly your troubles, copy paste the link from your address bar and make sure you check the Embed picture in post box

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REPORT THIS POST AS INAPPROPRIATE | Date Mar. 22 2012 3:22:02

Liogier

Posts: 3
Joined: Mar. 23 2012

RE: Rasp Making (in reply to Sean)

Hello, I'm the one who did that video and saw in my YouTube account that members of this forum were interested in it so I registered to your Forum. I hope you don't mind.
I'm just here to say hello and answer any questions you may have, even the simpliest ones, as I'm always happy to share with woodworkers.
Best regards,

Noel Liogier

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http://www.liogier-france.com

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 23 2012 12:57:02

Peter Tsiorba

Posts: 130
Joined: Oct. 27 2009
From: Portland, Oregon Pacific Northwest

RE: Rasp Making (in reply to constructordeguitarras)

Noel,

Nice to have you stop by, thanks for introducing yourself. I am thinking of getting a rasp or two from you soon. My intention is to use them for guitar neck work. My current approach is to roughly shape with a draw knife, refine from there with a spokeshave, and then, basically touch-up any irregularities and ridges, which are minor by that point. What grain would you recommend for this purpose?

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Peter Tsiorba
Classical-Flamenco-Guitars
tsiorba.com

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 25 2012 5:06:21

Liogier

Posts: 3
Joined: Mar. 23 2012

RE: Rasp Making (in reply to Peter Tsiorba)

quote:

draw knife

привет Peter,

Thanks for your question. According to my experience, Luthiers chose the half-round rasps for doing guitar necks (rather than Cabinet Makers rasps) because of the small radius of some curves at both end of the neck.

Regarding the grain, it all depend what you want to use the rasps for :

- a 300mm (12") with grain # 8 will do the roughing work probaly better than a draw knife.
- a 250mm (10") with grain #11 can replace the the spokshave for refining work, and if I were to choose only one rasp for guitar neck making I would probably pick this one as it'll can do also more than just refining works, but a good part of the roughing work until some of the finishing work.
- a 200 (8") with grain #14 will make the finishing work quick and easy.

Sorry for my approximative english.

Noel

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http://www.liogier-france.com

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 25 2012 7:46:44

Peter Tsiorba

Posts: 130
Joined: Oct. 27 2009
From: Portland, Oregon Pacific Northwest

RE: Rasp Making (in reply to Liogier)

Привет Noel,

Вы говорите по русски? Je voudrais pouvoir parler français. Thank you for your reply. Your English is impeccable, nothing approximate about it.

If I understand correctly, half-round rasp has a tighter/smaller radius on one side, and flat side on the other?

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Peter Tsiorba
Classical-Flamenco-Guitars
tsiorba.com

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 25 2012 17:51:31

Liogier

Posts: 3
Joined: Mar. 23 2012

RE: Rasp Making (in reply to Peter Tsiorba)

quote:

Привет Noel,

Вы говорите по русски?

Bonjour Peter,

Я только говорю на русском с машинного перевода от Google!

Yes, they all (cabinet makers, half-round, modellers, very tapered, curved) have one side flat and one side "half-round" but with different radius (also according to the length)

Here's a synthesis of all the different radius (except for Sage Leaf who has two half round side with different radius).

Attachment (1)

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REPORT THIS POST AS INAPPROPRIATE | Date Mar. 25 2012 18:15:18

constructordeguitarras

Posts: 1676
Joined: Jan. 29 2012
From: Seattle, Washington, USA

RE: Rasp Making (in reply to constructordeguitarras)

I just got one. From Lie-Nielsen Toolworks, it came with a maple handle. I got the 10-inch 9 g and it was much bigger and finer-grained than I expected, but I used it today and it is nice to have. It is much heavier and finer than either of the Nicholson 49 and Nicholson 50 that I have been using. The weight and width seem to make it do more of the work for me, and the shape of the tip is very nice for getting into tight places, like where the neck transitions into the head of the guitar.
-Cheers