Hi all,
I recently made my first plane, in the basic Krenov style with a Hock iron and breaker, and it turned out great! That gave some feel for tuning the throat, bed and wedge so I turned to a rosewood rabbet plane I bought a while back.
It always chattered badly, and sometimes I can even see a sliver of daylight between the bed and blade right down at the sole. Everything looks flat and true when the wedge is loose. The geometry of the wedge and iron is quite different from the basic Krenov.
Can you tell me or point me to a resource on how to tune this kind of plane?
Thanks,
Mike
Replies
Hi Mike,
It sounds like the wedge is the problem. If everything sits flat and true when under no load, then the loading is the problem. It's a particular problem if the iron lifts off the bed of the tool.
I'd look at a couple of things. Check to see that your bed on the plane is truly flat. If there's a high spot, your iron might be rocking on that. Next, check your wedge and see if it has a high spot on it. You might want to put a little concavity into it so it presses down right on the front of the iron. This is where you want your pressure. If it's pushing down in the middle or to the back of the iron, it's not nearly as effective. Or, as in your case, drastically ineffective. Last, check the iron itself to see that it's flat. Try these things, and let me know if you find a culprit. Best, Gary
Gary,Yes, I finally got back to it. What finally seemed to work (after re-checking the things you mentioned) was I:
1) Thinned the wedge down to get it farther down on the blade
2) Slightly relieved the middle underside of the wedge
3) Very slightly bent the thin, unhardened part of the iron in that
same shape -- down on the ends, up in the middle.I also found with this plane that just finger pressure is plenty to set the wedge enough to hold the blade during use. Thanks,Mike
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