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.RC.
04-28-2009, 09:17 AM
Finally got around to making a scraper sharpener for carbide scraper blades.

I don't currently have a spare small 4 pole so I decided to drive this by an electric drill...

The wood block has been milled to a 4 degree slope...It works really well and gets the blades just like new..I used a 6305 and a 6202 bearing for the spindle..

Some pics..

Pic 1 some 65mm round chucked up ready to go..

Pic 2 parting off some 65mm round to make the spindle housing...Big bore lathes come in handy, even if they are worn out..

Pic 3 drilling a 30mm hole through it, with no pilot hole..

Pic 4 some of the parts..

Pic 5 the finished item...A bit rough but it works...

http://img.photobucket.com/albums/v606/OzRinger/variousworlshop001.jpg

http://img.photobucket.com/albums/v606/OzRinger/variousworlshop002.jpg

http://img.photobucket.com/albums/v606/OzRinger/variousworlshop006.jpg

http://img.photobucket.com/albums/v606/OzRinger/variousworlshop007.jpg

.RC.
04-28-2009, 09:19 AM
http://img.photobucket.com/albums/v606/OzRinger/variousworlshop008.jpg

Greg Q
04-28-2009, 10:35 AM
That's excellent, Ringer. Is that a cast iron disc?

I am in need of something similar to hone my scrapers, don't have a lathe as it is awaiting restoration.

Greg

tiptop
04-28-2009, 12:17 PM
Ringer,

That's using your imagination. Little rough, that can be cleaned up later, at least you can sharpen your scrapers, eh.

Jay

.RC.
04-28-2009, 06:42 PM
Hi Greg, Yes it is a cast iron disc, it is 7" in diameter I acquired the disc by dubious means that would get me seriously flamed if I posted it here (it involved an angle grinder, hammer and a larger piece of cast iron)..The diamond paste I use is from this company http://www.kemet.com.au/index.html and is the 8 micron size grade 8KD-C2. I think I have got scraping a flat surface down OK, but I have not got the more important skills of scraping a flat surface and keeping it in alignment with another plane...What I really need is a DVD showing me how that sort of scraping is done, like the Rich King one.. ;)

Hi Jay, Yes it is a bit rough, I plan on trying to aquire a little 1/3 or 1/4 hp motor that I can them make a more permanent solution...I was thinking along the lines of a washing machine motor...

tiptop
04-28-2009, 09:11 PM
Ringer,

I have scrapers that need sharpening but have not got to making a sharpener yet. I am pleased to see someone else making one with what is on hand. I suppose when I get to scraping I will be forced into a build but you are ahead of me with yours.

Jay

Greg Q
04-29-2009, 08:35 AM
Hi Greg, I think I have got scraping a flat surface down OK, but I have not got the more important skills of scraping a flat surface and keeping it in alignment with another plane...What I really need is a DVD ;)
..

Didn't I...oh, wait. OK, tomorrow I'll get right on that. I have been making spotting masters for my cross slide dovetails from a chunk of durabar I bought from Forrest at the scraping class. Flattening that stuff by hand right off the saw gets old in a hurry. I still have to touch up one straightedge and do from scratch two others, but at least they've been milled flat already.

Greg

Teenage_Machinist
04-29-2009, 10:38 PM
Don't be ashamed of clunky disk-making technique. I used a lathe parting blade, a sawzall, and hacksaw for mine.