i am new to woodworking, and I bought a few handplanes. I’m trying to tune them up and after reading alot of stuff on the net, I can’t figure out how to properly adjust the frog on different planes. Using a #4 smoothing plane for example. After smoothing the frog bottom and the contact points on the sole, how far forward or back should the frog be? I’ve read that the gap should be around .008, but can’t really figure out what gap their talking about? How exactly do you check the gap?
Discussion Forum
Get It All!
UNLIMITED Membership is like taking a master class in woodworking for less than $10 a month.
Start Your Free TrialCategories
Discussion Forum
Digital Plans Library
Member exclusive! – Plans for everyone – from beginners to experts – right at your fingertips.
Highlights
-
Shape Your Skills
when you sign up for our emails
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. -
Shop Talk Live Podcast
-
Our favorite articles and videos
-
E-Learning Courses from Fine Woodworking
-
-
Replies
Tighten the screws holding the frog so that it is snug but it can still slide forward and back. Now install the blade and make it flush with the sole. Looking from above you will see a gap between the cutting edge of the blade and the leading edge of the mouth in the sole. Adjust that gap to be somewhere between 1/32" and 1/16" for starters. Basically you can set the gap by eye, measuring it to .001 is pointless.
Basically the width of the gap is dependent on the character of the wood you are planing and what you are trying to accomplish. A narrower gap reduces tear out but chips will jam in it easily unless you take very thin shavings. If you are rough planing a board to flatten it you'll have a wider gap so you can take a heavy cut and because some tear out won't matter. The plane you use for final cleaning up will be set with a narrower gap because you will be taking very little material off and you will want to avoid tear out.
Different planes will have different gaps, arrived at by experiment. Generally, once the gap is set to a point that works well I almost never change it.
John White
thanks john, i really appreciate your help
This forum post is now archived. Commenting has been disabled