|Forum topic by MuseumGuy||posted 09-19-2015 02:34 PM||1636 views||0 times favorited||35 replies|
09-19-2015 02:34 PM
I’m a beginning woodworker with a handplane problem that I can’t find an answer to, no matter how much I scour the internet. I’m guessing the answer must either be really obscure, or really obvious. Here goes.
I can’t get the cutting edge of my plane iron close enough to the leading edge of the mouth.
1. This is an old smoothing plane. Sole is a little over 10” long. There are no “Stanleys,” SW heart logos, patent dates, size numbers, or anything else on it that tells me it’s a Stanley. The stamp on the iron says “Hercules,” but I don’t know if it’s the original iron (garage sale find).
2. I have lapped, hollow-ground, and honed the iron. I have flattened the face of the frog.
3. There is no frog-adjusting screw, but as you can see from the pictures, the frog is adjusted as far forward as it will go. Its front edge is just shy (maybe 1/64”?) of the back edge of the mouth.
4. With the plane assembled, I have to adjust the iron all the way down to the limit of its depth (just before the depth adjustment wheel falls off of the threads) just to get it to protrude from the mouth.
And when it does, it is nowhere near the front edge of the mouth—the opening is nearly 1/8”.
5. Length of the plane iron is 7 5/16”.
I want to say that the plane iron is just too short (it’s probably seen its share of re-grinding), but I can’t wrap my head around the geometry of that. As I’m picturing it, a longer iron would need less depth adjustment to protrude from the mouth, but it doesn’t seem like a longer blade would be more likely to reach the front of the mouth.
Or is the mouth just too large?
Or is the frog sitting too low on its rails? Maybe it’s been ground down too, and I need to put washers or something underneath it?
Thanks in advance for any help you might be able to provide.