Here's a visual blade comparison
https://groups.io/g/oldtools/photo/263870/3221442
On the left is the 1-1/2" radius vintage German blade by LW (Laupheimer
Werkzeugfabrik) from my wood-bodied scrub plane
In the middle is the 3" radius Lie Nielsen 40-1/2, based on the "large"
Stanley scrub plane
On the right is a vintage Stanley No. 5. It's included for size comparison
even though it's ground straight; I haven't tried adapting a jack plane as a
scrub substitute.
The two scrub blades are quite substantial5/32" thick for the LW, 11/64"
for the Lie Nielsen. The Stanley is the standard 1/16" so it depends heavily
on the cap iron for rigidity if you want to remove a lot of material.
One quibble about terminologyI would say a "jack can't take a very SMALL
radius". But I knew what you meant.
--Chris
Check out H-frame, the site for vintage Black & Decker Workmates:
https://h-frame.weebly.com/
-----Original Message-----
From: oldtools@g... [mailto:oldtools@g...] On Behalf Of scottg
Sent: Thursday, May 06, 2021 7:40 PM
To: porch
Subject: Re: [oldtools] Scrub planes
People are getting confused about what a scrub plane is.
A regular smoother or jack can't take a very big radius. The width of the
blade/chipbreaker only lets you use so much These are just coarse set
planes.
A coarse set jack is more used in my shop than a true scrub by far. I use
them constantly.
http://users.snowcrest.net/kitty/sgrandstaff/images/homeplanes/jack2.jpg
http://users.snowcrest.net/kitty/sgrandstaff/images/homeplanes/wormscrub3.jp
g
Scrubs are very narrow with no chipbreaker so you can grind a deeper radius.
They hog chips faster than anything but they are not the easiest planes to
control.
http://users.snowcrest.net/kitty/sgrandstaff/images/homeplanes/scrub1.jpg
yours scott
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