Hand Tools

Subject:
Re: LV replacement cap irons......

Patrick Chase
Ah, sorry Hank, I misunderstood you.

That does bring me back to my question about what you're doing to these cap irons. Like David I've always found that tuning the sheet-metal ones is also a one-time exercise unless there's something fundamentally defective about the iron (for example loss of preload as David describes). In my experience maintainability is a wash between the two.

I do want to circle back to a point that David and Derek both raised: Springiness. Both the stamped and milled cap irons are effectively leaf springs, i.e. they bend as you tighten the center screw and thereby apply preload to hold the leading edge down.

The stamped cap-irons are low-constant springs with a lot of preload, meaning that the spring is soft but it gets bent a lot when tightened. In contrast the newer milled ones are high-constant springs with minimal preload, meaning that the spring is stiffer but it doesn't get bent much. Both can hold the cap-iron edge to the iron back just fine, but IMO the "low-constant/high-preload" kind (stamped irons) are easier to adjust which is important when you're working with close sets.

The reason they're easier to adjust is because it's easier to apply intermediate levels of tension, where the cap iron is tight enough that it doesn't accidentally shift but loose enough that it can easily be "nudged" into position. I don't have much luck finding that happy medium with the LN cap irons in particular - they seem to go from "loose" to "locked" in a small fraction of a screw turn.

The LV custom irons are probably the best of the milled lot, as I find that I can dial in "tweak-friendly" tension with the cap screws. They're not without downside though, as the cap iron tends to "walk" if you tighten the screws in the order LV suggests. I think Derek covers this in his review, and he's right.

Messages In This Thread

LV replacement cap irons......
Re: LV replacement cap irons......
Re: LV replacement cap irons......
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Crude cap irons
Re: LV replacement cap irons......
Re: Stamping..
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Re: It's worth a chuckle
Heavier Stanley cap-iron
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First one I saw...
That would've been my guess
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Final smoothing isn't the problem
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Re: First one I saw... *PIC*
Sandpaper
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Quality is relative
Not really...
Re: growing pains..
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Re: Latest Development
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stay set
Re: stay set
The internet hasn't helped in some things..
Re: And it hasn't helped in others...
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Re: The internet hasn't helped in some things..
Re: LV replacement cap irons...... *LINK*
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