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Thread: Scraper
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25th November 2009, 04:19 PM #1
Scraper
What is a scraper used for i have read about them but just don't see what there for.
Thanks Ben
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25th November 2009, 06:30 PM #2
Scrapers have multi functions.
- Glue removal after panel glue up, this is were a cabinet scraper is best like this one.
- Removal of tear out that the thicknesser or hand plane did not remove, using Scraping Plane or this one.
- Scraper can safe money by reducing the need for sand paper up to 300 grit
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26th November 2009, 10:35 AM #3
What TS says, Bupton.
But before you lay into a piece of Hoop pine or similar soft material, be aware that softer woods rarely scrape well. Rule of thumb is, the harder the wood, the better it scrapes (& the more it cooks your fingers, if you are using a card scraper!).
Most beginners have trouble getting a scraper to make shavings. You should get nive, long ultra-thin shavings with either card scrapers or scraper planes. If you are getting dust, it ain't working properly. The secret is in making a very clean edge (90 degrees for card scrapers, usually around 45 deg for scraper planes) just as you would for any other edge tool. Then you need to turn a burr on a card scraper - I would suggest looking this up on the BB seach function as there have been numerous threads on the process, & there are several ways to do it - take your pick. Burrs on scraper plane blades are optional.
Using scrapers well is like everything else in this business - it takes practice & perseverance to become good at it. However, it's really worth persevering & mastering them, as they can save you time, not to mention $$s wasted on sandpaper, & your lungs will appreciate a less dusty environment. I have a strong aversion to using sandpaper, & discovering card scrapers many years ago was one of the best things that happened in my woodworking career!
Cheers,IW
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