Thread: anybody got carbide blanks?/scraper making

Hi Sazman,

Tough question there hopefully one of the other forumites will let us in non a source for carbide bits. I did see them on the sandvik coromant website, but have not emailed them to find local resellers of the scrapers and carbide bits as of yet.

I wonder if you could find some A2 tool steel or something almost as hard from a local metal fabricators?

Ern (rsser) had one for sale a while ago, not sure if it sold. Also Gregoryq may have some carbide blanks. Don't be tempted to use a green wheel it chips TCT and gives a horrible finish to your scraping. Stick with the diamond honing plate for the time being. I have had some soles that dulled the TCT very quickly too not much your can do about it. But if you are not applying enough pressure then little material will be removed between sharpenings and you're just dulling the scraper. Where you have lots of material to remove err on the side of too much pressure. They say for beginners one of the hardest things is being agressive enough, it was certainly my experience in the beginning. What are you using for a surface plate?

Cheers
Michael

Originally Posted by simonmags

Hi Sazman,

Tough question there hopefully one of the other forumites will let us in non a source for carbide bits. I did see them on the sandvik coromant website, but have not emailed them to find local resellers of the scrapers and carbide bits as of yet.

I wonder if you could find some A2 tool steel or something almost as hard from a local metal fabricators?

Hi Simon,

I am already using HSS steel which is harder than A2 steel as
far as I know.

Thanx for the reply

Originally Posted by mic-d

Ern (rsser) had one for sale a while ago, not sure if it sold. Also Gregoryq may have some carbide blanks. Don't be tempted to use a green wheel it chips TCT and gives a horrible finish to your scraping. Stick with the diamond honing plate for the time being. I have had some soles that dulled the TCT very quickly too not much your can do about it. But if you are not applying enough pressure then little material will be removed between sharpenings and you're just dulling the scraper. Where you have lots of material to remove err on the side of too much pressure. They say for beginners one of the hardest things is being agressive enough, it was certainly my experience in the beginning. What are you using for a surface plate?

Cheers
Michael

Hi Michael.

I use a granite surface plate as reference. Accuracy I think was
7 micron or so. The plate is 85cm long, 7cm thick and 17cm wide.

Ern was selling the scraper in combination with diamond paste
and a wheel and few things more. I basically only need to TCT
tips.

Hope somebody got a few of those TCT pieces extra and is willing
to send them to me for a small price

Sazman

A filing technique called draw filing should help and an inexpensive marble or granite window sill thrown away and some carborundum wet dry sandpaper to finish after using heavier grits.

Originally Posted by woodhog

A filing technique called draw filing should help and an inexpensive marble or granite window sill thrown away and some carborundum wet dry sandpaper to finish after using heavier grits.

'cept he's trying to do a proper job, not that lapping BS

Cheers
Michael

Originally Posted by mic-d

'cept he's trying to do a proper job, not that lapping BS

Cheers
Michael

Oh touché. Although I must concur wholeheartedly.

Hire a machinist / tool and die maker to use a CNC millling machine or surface grinder instead of buying a brand new $450.00 plane.

If it were that simple ....

Have read folks' reporting taking their soles to automotive engine head rebuilders and getting crap back.

Also, one argument why Stanley type soles ended up concave: the cheeks were held in a vise while the sole was milled. Another: the castings in days gone by were not left in the bone yard long enough before machining.

Oh, and the moon was in the wrong phase ;-}

1" square carbide tips are out there Sazman; gregoryq and others didn't knock them up in their home forge.