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Main Boards => The Bowyer's Bench => Topic started by: Want2no on April 19, 2016, 09:05:00 AM

Title: First board bow attempt--Issues
Post by: Want2no on April 19, 2016, 09:05:00 AM

I am attempting my first board bow.  I am using 4est's build along.  Last night as I was scraping the belly, "ridges" began forming at one limb tip for about four inches.  I am using a red oak board that I was certain had straight grain both on the side and top.  I'll try to post pictures later.

Title: Re: First board bow attempt--Issues
Post by: macbow on April 19, 2016, 01:12:00 PM

Jeremy, where mid mo.?

Title: Re: First board bow attempt--Issues
Post by: Want2no on April 19, 2016, 02:05:00 PM

Centralia, just North of Columbia about 20 miles

Title: Re: First board bow attempt--Issues
Post by: Msturm on April 19, 2016, 02:58:00 PM

are the ridges perpendicular to the stave? or are they parallel? (tip to tip) When I get scraper chatter or perpendicular ridges I file them down with a fine file. that lets me scrape again without the chatter.
enjoy the process. and remember. its just wood. It literally grows on trees.

Title: Re: First board bow attempt--Issues
Post by: Zradix on April 19, 2016, 03:01:00 PM

without seeing pics....
It does sound like chatter as said above.
Just sand that spot smooth and you'll most likely be able to scrape it again.

Might want to practice sharpening your scraper and your technique for running it.

Title: Re: First board bow attempt--Issues
Post by: Want2no on April 19, 2016, 03:59:00 PM

Not sure if this will work
   (http://s1376.photobucket.com/user/Jeremyd76/media/IMG_2255_zpspppfmiyf.jpg.html?o=0)

Title: Re: First board bow attempt--Issues
Post by: Pat B on April 19, 2016, 05:00:00 PM

If you only scrap with the scraper perpendicular to the surface it will cause these ridges. Use your scraper perpendicular but also angle it to the left and the right in alternate scrapes. By doing this the angled scrapes will remove the high spots of the ridges and help to keep the surface smooth.

Title: Re: First board bow attempt--Issues
Post by: Want2no on April 19, 2016, 05:09:00 PM

My attempt at posting pictures failed.  I'll try later tonight. From your discriptions it appears to be scraper chatter. Pat, I will try that technique. Thanks!

Title: Re: First board bow attempt--Issues
Post by: mikkekeswick on April 20, 2016, 02:08:00 AM

The main problem with scrapers is them not being sharp.
It should produce no dust only shavings.
Also regardless of how sharp it is scrapers , if used to the exclusion of other tools, will start to leave your wood 'chattery'!
Alternate being rasp/files and your scraper.

Title: Re: First board bow attempt--Issues
Post by: macbow on April 20, 2016, 09:33:00 AM

Good info.
Jeremy, i'm 2 hours from you if you ever want to drive down.
I could assist in you making a bamboo backed bow.
Cost would just,be materials.
Have a bedroom in shop for overnight visit.
Ron

Title: Re: First board bow attempt--Issues
Post by: Want2no on May 07, 2016, 10:37:00 PM

Ron,
I would be interested in that. My schedule is pretty full for a while with work and kids. Can I pm you sometime to discuss further?  Thanks

Title: Re: First board bow attempt--Issues
Post by: macbow on May 08, 2016, 03:33:00 PM

Yes you can. If I don't have friends or sombody else scheduled for you date.