Burnishing scrapers

[TobyB]

After reading around a bit, I splashed out on the Veritas burnisher. I'd previously got reasonable results with conventional scraping with them sharpened on the ProEdge. Sometimes tearout - but OK. Never that successful with shear scraping. But useful tools for flattening bowl bottoms and recovering from ripple bowls where the gouge has been bouncing off a dense section ...

Just had a play on a roughed-out bowl and an end-grain log. MUCH better finish on both. Most striking difference is that I am producing real shavings ... long things 5+ cms or better. Can do quite thick shavings like I get off a bowl gouge, and terribly fine thin things that look like the ones people show when they are demonstrating how sharp they have their hand plane. Never see that off my scrapers before - dust and splinters would be the usual product. But the finish is really good too on the inside and outside of the bowl (never normally go there with a scraper) - as good a sharp bowl gouge pretty much.

You may well get the same result without this jig using an alternative burnisher or stone technique ... but I'm impressed.

Cheers

Toby

 

[loz]

How would i get ,

Into

Or am i on the wrong track here ??

 

[miles_hot]

Possibly this is what is being discussed?? (not sure mind you!):

http://www.veritastools.com/Products/Page.aspx?p=122

Miles

 

[loz]

Possibly this is what is being discussed?? (not sure mind you!):

http://www.veritastools.com/Products/Page.aspx?p=122

Miles

God i feel silly now

 

[Jenx]

Never that successful with shear scraping.

Nice one, Toby .

I can relate to what you mean re: shear scraping... don't know if it'll help, but I found it a difficult technique to get a half decent hold on, too ...

I'd remembered something Tam had posted about how to do it...( can't remember where it was.. i searched around and found it at the time ), and found that by following his description and experimenting a little, I got to grips with it a bit.

Everybody will do things their own way... but what I find works well is to present the scraper at as accute an angle as possible to the vertical.
-- Picture like this : If the scraper is at the 12 O'clock vertical, roll it over in a clockwise direction so the uppermost edge is now at about 1 o'clock / 1.30-ish and present it to the surface, drawing it over the wood from centre(ish) in a right-to-left movement, with a very light touch.... and I find that the tinyest wispy shavings are produced , thus improving the surface finish of the bowl's interior no end.
The more you 'roll' it over towards becoming horizontal.. the more 'aggressive' the cut becomes, and the poorer the finish.

On the outside, I find a similar method quite effective, but like to use a very square-ended scraper for this... this seems to go against the 'instinct', but I've found it to work pretty well.
Again, I start from the centre and work outwards right to left, following the curvature of the bowl. Its a little bit tricky, getting the 'swing' of the tool into a nice flowing arc, but I've found some success by doing it this way. Having all the grace of a one legged hippo, i find 'doing the tools-dance' a little bit 'alien' to say the least... but its starting to work reasonably well, with the practice.

It'd be interesting to see how you go, - successfully shear-scraping WITH burnished scrapers... you'll see your face in the work, right off the tool ! 8) ( maybe a tad overly-optomistic, but you get the idea ! )

I guess everyone has their preferred methods, and as its often said.. if it works for you - then its the right way ! 8)

Some other guys will no doubt have other different methods and it'll be interesting to read their thoughts on it.

Good luck and a nice shiny new tool is always a pleasure !

 

[TobyB]

I'd struggle with that idea too Loz - the link was for the right thing.

Thanks for the shear scraping advice Jenx - I'll see if a differently sharp tool and subtle variations of technique lead to nice results ...

Cheers

Toby

 

[wizer]

I was just watching a Jimmy Clewes DVD, he seems to think that scraping is wrong and you get a better cut from 'cutting'. But to be honest he didn't fill me with confidence throughout the dvd

 

[Bodrighy]

Every time the 'scraper v cutter' debate comes up I can't help thinking of all those old turners who only had scrapers and somehow managed to produce beautiful work. I am finding that it isn't the tools that make beautiful objects but the opersion hioldibng them. I use a skew for making beads, boxes, cleaning striaght edges and flat spindle work rather than fancy scrapers and gouges simply beacause I find it easier. Each to his / her own. Certain rules such as don't use spindle gouges deep in bowls etc are valid, the majority is personal choice. IMHO

Pete

 

[Jenx]

I think Pete's got it spot on there ! :wink:

Toby, there are lads much more qualified than I to perhaps better 'advise' ..

http://robertsorby.co.uk/sorbymedia/RS200KT3.wmv
This little video shows the concept (its a sorby Rs200KT, but the principle is the same.. ) Takes a minute to load, but its informative.

I'll have a search for the post Tam wrote... it was good... ( unless he appears and goes straight to it himself first ! 8)
I found that reading it made things much clearer in what one was trying to achieve.. If I can get it, I'll come back and put a link in to it.


Edit : This may have been it ~~> https://www.ukworkshop.co.uk/forums/view ... r+scraping Tam will know for sure

 

[Mark Hancock]

Possibly this is what is being discussed?? (not sure mind you!):

http://www.veritastools.com/Products/Page.aspx?p=122

Miles

God i feel silly now

Loz, I'll join you feeling silly...... That's the method I use :lol: