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Author Topic: Scraping direction  (Read 2628 times)

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Offline DC

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Scraping direction
« on: April 29, 2018, 04:44:19 pm »
When you are tillering do you scrape from the handle out or from the tip in? Why?
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Offline George Tsoukalas

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Re: Scraping direction
« Reply #1 on: April 29, 2018, 04:56:12 pm »
Handle out. Why? I like to scrape, rasp and sand with the grain otherwise I'd end up gouging the wood. Usually the grain runs handle out. Jawge
« Last Edit: April 29, 2018, 05:13:08 pm by George Tsoukalas »
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Offline Badger

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Re: Scraping direction
« Reply #2 on: April 29, 2018, 05:06:16 pm »
  Both ways. whichever is working better at that moment.
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Offline PEARL DRUMS

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Re: Scraping direction
« Reply #3 on: April 29, 2018, 05:57:18 pm »
Quote from: Badger on April 29, 2018, 05:06:16 pm
  Both ways. whichever is working better at that moment.

Yup.
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Offline bjrogg

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Re: Scraping direction
« Reply #4 on: April 29, 2018, 06:57:17 pm »
Both like Badger said.
Bjrogg
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Offline upstatenybowyer

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Re: Scraping direction
« Reply #5 on: April 29, 2018, 07:37:35 pm »
+1 yup
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Offline DC

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Re: Scraping direction
« Reply #6 on: April 29, 2018, 07:45:09 pm »
I was out scraping away and it felt like the first half of the scrape was taking more wood off even though I was trying to "take long even strokes" so it got me to wondering if you guys scraped one direction to minimise the effect of this.
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Offline PatM

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Re: Scraping direction
« Reply #7 on: April 29, 2018, 07:49:56 pm »
That's probably because you start scraping with the best mechanical advantage to apply pressure and lose it as you reach the back end of your scrape.
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Offline darinputman

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Re: Scraping direction
« Reply #8 on: April 29, 2018, 08:25:08 pm »
The thing I have to watch when scraping is not to scrap from the same side and the same direction on limb, if I do I have a tendency to scrap more on one side of limb than other. Thanks to Eric krewson for teaching me that early on.
« Last Edit: April 29, 2018, 08:49:01 pm by darinputman »
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Offline DC

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Re: Scraping direction
« Reply #9 on: April 29, 2018, 08:38:11 pm »
I work at a normal bench vice so I'm always working from one side. I have to be very careful not to get too thin on the side closest to me. And I turn the bow to work on the other limb so if I'm not careful I tiller prop twist into the bow.
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Offline Badger

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Re: Scraping direction
« Reply #10 on: April 29, 2018, 08:41:41 pm »
  i still make the mistake of taking too much from one side, in my mind the scraper isn't removing much wood but in reality it is and is very easy to get one side thin if not constantly monitoring.
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Offline BowEd

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Re: Scraping direction
« Reply #11 on: April 29, 2018, 08:46:06 pm »
Yes a person has to know their own tendencies when using hand tools.I am aware of mine too.Making pencil marks across my work first helps many times.Then removing them.With that in mind I've gone to using carpenters' pencils they last longer.
« Last Edit: April 29, 2018, 10:38:51 pm by BowEd »
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Offline Julian

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Re: Scraping direction
« Reply #12 on: April 30, 2018, 03:25:23 am »
Quote from: BowEd on April 29, 2018, 08:46:06 pm
Yes a person has to know their own tendencies when using hand tools.I am aware of mine too.Making pencil marks across my work first helps many times.Then removing them.With that in mind I've gone to using carpenters' pencils they last longer.

I do this too.

I also tend to scrape out from the handle until mid limb, then scrape in from the tips to mid limb. But it depends on whether it's 'uphill' or 'downhill' aka if the limb has a taper in thickness I'll usually scrape 'downhill' because I feel like that reduces chatter/tearout.

Also, sometimes it just feels like the wood has a particular direction it wants to be worked. usually the direction that it grew in.
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Offline leonwood

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Re: Scraping direction
« Reply #13 on: April 30, 2018, 05:58:27 am »
I scrape from tip to handle but the only reason for that is that my workspace is so small I can not walk around my bow or even work on it from the other side. I keep looking down the limb for the same thickness because I too have made the mistake of scraping more from one side more than I like to admit :-[
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Offline George Tsoukalas

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Re: Scraping direction
« Reply #14 on: April 30, 2018, 07:23:26 am »
I take around 20 scrapes and then check tiller.

I run my fingers along both sides of the limb to make sure both sides have the same amount of wood removal.

Finally, I look at both sides to make sure wood removal is even. If not I mark with a pencil and fix the issue.

If you don't check you'll end up with a bowyer caused prop twist.

Jawge
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