Violin Forum/Message Board

tomigv

Hi i have about a 20 yr old brass 3 peg hole peg shaver marked Th I believe it is from germany. While tapering some hawthorne pegs. I noticed that the pegs were quite torn instead of being scraped . I looked at the angle of the blade on my other adjustable peg shaver and it looked like it was 30 deg. this blade on the fixed 3 peg hole shaver looks about 45 deg. Would grinding down the blade to 30 deg improve the performance of the 3 peg hole shaver ?? any thoughts bye others who have similar experiences , or who have made a modification to this shaver ?? hawthorne is slightly less dense than boxwood
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I am very interested in violin and bow making. Have quite a few interesting bows and a large cache of pernambuco. I like to experiment using local midwest hardwoods,

byacey · Posted: Tue Oct 21, 2008 10:41 am Post subject:

My understanding is a steeper angle will reduce tear-out, something on the order of around 75 to 80 degrees. This creates more of a gentle scraping action rather than aggressive material removal. I have one of these shavers myself, but never did get around to trying the steep angle.

If you have metal working abilities, I would keep the original blades intact and make some new blades with the high angle.

tomigv · Posted: Wed Oct 22, 2008 9:34 am Post subject: 3peg hole shaver

thanks for the prompt reply. I tried to scrape an old ebony peg on the 3 peg hole shaper and it worked just fine. The hawthorne violin peg is softer than east indian rosewood. Would a lower angle say 30 deg/?? work better at scraping the hawthorne. the current angle on the th 3 peg hole scraper looks to be about 45 deg
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I am very interested in violin and bow making. Have quite a few interesting bows and a large cache of pernambuco. I like to experiment using local midwest hardwoods,

byacey · Posted: Thu Oct 23, 2008 9:57 am Post subject:

A lower angle will be more prone to tear-out in any wood as the blade is trying to dig into the grain rather than cutting away from the surface.

tomigv · Posted: Thu Nov 20, 2008 4:14 pm Post subject:

thanks I am using the hawthorne peg for a flamenco guitar peg, which is a slightly oversized viola peg. I am reluctant to change the angle on the peg shaver as it works very well for the ebony. Will have to make a homemade shaver with a 75 degree angle on the blade to accomadate the hawthorne. Has anyone used pear wood for violin parts .?? a neighbour's bradford pear fell in our yard in sep.
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I am very interested in violin and bow making. Have quite a few interesting bows and a large cache of pernambuco. I like to experiment using local midwest hardwoods,

Andres Sender · Posted: Thu Nov 20, 2008 6:25 pm Post subject:

Well watered pear would probably be too soft. Very little US domestic pear is even as hard as most European pear, and even that is probably not a great choice for use for 1:30 taper pegs.

tomigv · Posted: Fri Nov 21, 2008 12:14 pm Post subject:

thanks for the tip about pear. Most of the stock is still green, will try to see what it is suitable for in 2yrs. ? quite a few pear trees are planted here as ornamentals , they called it bradford pear
_________________
I am very interested in violin and bow making. Have quite a few interesting bows and a large cache of pernambuco. I like to experiment using local midwest hardwoods,

David Tseng · Posted: Sun Jan 11, 2009 2:05 pm Post subject:

I think it has to do with the depth of cut; it would be better to make very thin cut. I finally bought Aberti Design peg shavers, the best I've ever had. With the 2 set-screws on the side, I can take out the blade to hone and put it back at the same place.