woodbloke66":31novnpr said:
Fair enoughski, your viewpoint is as valid as mine and I won't be discussing this topic any time soon; consider it closed - Rob
I'm sure advice like this will continue forever, but there is little in the world of fine mouths that can compete with a cap iron.
I went so far as an amateur maker to make a fairly pricey to build single iron 55 degree smoother (infill) with a 1/4" brese (made for him by hock) iron. I set the mouth between 3 and 4 thousandths.
There are very few planes with mouths that fine. It is not as good at controlling tearout as a stanley plane with the cap iron set properly, and far less productive if there is anything more to do than take 1-2 thousandth shavings.
You have not learned to use the cap iron properly, and that is OK. But it is bad advice to suggest that a tight mouth is as good as or better than a cap iron. Closing the discussion to not hear an opinion you don't like isn't something that changes the outcome.
I still have my infill plane that I made. It's amateur made, so I'm not sure what to do with it, but i haven't used it regularly in years. As it's heavy and has a huge iron, it's a sexy-working wood show type plane, and great for a beginner who doesn't know what a cap iron is.
But the cap iron is light years ahead of it in design evolution and capability and a step further than that, what it allows (a relatively common standard plane that will plane everything) is an economic marvel for the time.
Norris planes are not a good illustration of a fine mouth, as the wear has been filed away to allow use of the cap iron set close. It's essentially a plane that will work well for a new user or someone who isn't very good at using planes (as well as displaying their prowess for making fine planes), but it is very intentionally made to go to the next level for an experienced user. Filing the mouth away in the front is extra work - they wouldn't have done it for nothing.
As time went on and costs were cut, the fine mouth became less common but the cap iron stayed. One would assume that all competent trade workers were well versed in using it.
What is the shame of all of this? People tell beginners that they need all manners of faffing to control tearout. All they need is a stanley plane. One could do a lifetime of fine work in hard and soft woods, figured and plain with a single plane with a stock iron and cap iron.
if that wasn't the case, fine mouthed and high pitched planes would've dominated. They were pretty much eliminated from the market until users became beginners who would often never even master sharpening.