Hand Tools

Subject:
Re: Planes; knife geometry specifications

Mark Hennebury
David, although supersurfacers are great, they are still a little fussy to get close to perfect, its a bit of a challenge.

There are several variables that all must work together to get the best result. With each species of wood that varies; Not only perfectly sharpened blades and precision back-knife setting, you also have the best mouth opening, the nose-bar height, shear angle and feed down-force pressure, its a bit of a ballet to organize if you are searching for absolute.

All of the geometry is required to be very precise.
The knives on the "small" machines are 13" long, back-knife setback is a couple of thou, Your shavings are only a couple of thou thick so your margin of error is slim before you will adversely effect finish to some degree.

Take the nose-bar height above the table for example.
Nose-bar height 0.02mm or 0.0007874016"

Messages In This Thread

Planes; knife geometry specifications *LINK*
Re: Planes; knife geometry specifications
Re: Planes; knife geometry specifications *PIC*
Re: Planes; knife geometry specifications
Re: Planes; knife geometry specifications
Re: Strawmen
Re: Strawmen
Who are the teachers?
Re: Who are the teachers?
Re: Who are the teachers?
Re: All screwed up?
Re: All screwed up?
Re: Who are the teachers?
Re: Who are the teachers?
Re: Who are the teachers?
Re: Who are the teachers?
Re: Who are the teachers?
Re: Who are the teachers?
Skepticism *PIC*
Re: Skepticism
Re: Skepticism
Re: Skepticism
Re: Who are the teachers?
Re: Who are the teachers?
Re: Strawmen
Print from 1993 *LINK* *PIC*
Re: Print from 2010 *PIC*
Re: Print from 1905 *LINK* *PIC*
Re: Print from 1950 *LINK* *PIC*
Integral Chipbreakers in handplanes *PIC*
Re: Integral Chipbreakers in machines *PIC*
Re: Integral Chipbreakers in machines *PIC*
Re: Integral Chipbreakers in handplanes
Re: Print from 1917 *PIC*
Re: Print from 1905
Re: Print from 1905
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Breadth of forum participation *NM* *LINK*
Re: Breadth of forum participation
Re: Breadth of forum participation
Stanley...anyone care to comment? *PIC*
Occasionally, someone thinks they have...... *PIC*
I wish I had a wheel..
Re: Occasionally, someone thinks they have......
Re: Occasionally, someone thinks they have......
Re: Occasionally, someone thinks they have......
Re: Occasionally, someone thinks they have......
Beautiful workbench Roger! *NM*
Thanks Mark.....
Perfection exists to be pursued not caught. *NM*
Re: Stanley...anyone care to comment?
Re: Stanley...anyone care to comment?
Re: Stanley...anyone care to comment?
Re: Print from 1993
Re: Print from 1993
Thanks William. *NM*
Re: Strawmen
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