Reply by Sylvain

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Posted on New bench plane...doing something wrong

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1111 posts in 3413 days

#1 posted 04-19-2019 12:17 PM

If one look at a skewed rabbet plane , one will see that the iron is grind obliquely.
( click on “Instr” in the middle of the web page and go to the 5th page of the instruction document)

This clearly shows that, on a straight plane, if the intersection of the ‘geometric-plane of the iron bedding’ with the ‘geometric-plane of the sole’ is not perpendicular to the ‘length of the plane’:
- either a square iron will protrude more on one side
- or the iron has to be grind out of square.
The lateral adjustment can compensate minor misalignment or out of square iron.
- try pivoting the frog a little bit, to correct any bedding skew;
- verify the iron is grind square;
- verify the cap-iron has his two side parallel and perpendicular to the business end;
- as Tywalt said “Reinstall your iron and – by eye – get an even amount of daylight on either side of the blade so it is as centered as you can get it before you lock it down.”

Then try on a thin piece of wood as shown by Paul Sellers.

To avoid tracks: round slightly the two iron corners and take fine shavings.

“I just can’t get the shaving very long. Seems very hard to push the plane. I almost always get chatter and the plane want to bounce it I don’t have the power to push through the stroke.”
After sharpening and stropping, ensure you have a relief angle under the iron, otherwise, the plane will skate on the wood (except at the edge of the board where it will bite). When the iron skates on the wood, one will try a deeper cut setting and push vertically on the plane. Then the flexing of the plane makes it bite here and there as you describe.
When stropping be careful not to curl the cutting edge (see Paul Sellers video).

-- Sylvain, Brussels, Belgium, Europe - The more I learn, the more there is to learn

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