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plane cap iron video


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#1 violins88

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Posted 23 July 2012 - 03:43 PM

I found this video very interesting. For violin makers, probably helpful in using a plane for the center joint. Don't view it if you are not really interested in how your plane works. You will be bored to tears.

#2 Oded Kishony

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Posted 23 July 2012 - 04:53 PM

mesmerizing :blink:

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#3 fiddlecollector

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Posted 23 July 2012 - 06:01 PM

Extremely useful proof for the use of a cap iron. Many claim they are unneccessary :)

#4 Urban Luthier

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Posted 23 July 2012 - 06:13 PM

Interesting -- although I confess I skipped ahead ;). As an alternate point of view, many modern plan makers don't believe in chip breakers (e.g. Karl Holtey). In the end, all that matters is the iron gets the job done as efficiently as possible!

#5 Brad Dorsey

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Posted 23 July 2012 - 07:07 PM

...Don't view it if you are not really interested in how your plane works...


I am interested in how planes work. I found this video fascinating.
I feel more like I do now than I did when I got here.

#6 Stradagnini

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Posted 23 July 2012 - 08:26 PM

I found this video very interesting. For violin makers, probably helpful in using a plane for the center joint. Don't view it if you are not really interested in how your plane works. You will be bored to tears.


Wow, I didn't read your entire post and just clicked on the link, I almost started crying... :blink:...But interesting video none the less!

#7 violins88

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Posted 23 July 2012 - 08:33 PM

Wow, I didn't read your entire post and just clicked on the link, I almost started crying... :blink:...But interesting video none the less!

Ha, ha. Tears of boredom, no less. I told you so.

#8 jezzupe

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Posted 23 July 2012 - 09:22 PM

You know you got it bad when this kinda of stuff is fascinating, thats was great! :lol:

#9 Tommy

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Posted 23 July 2012 - 11:18 PM

A lot of people obsess over the tightness of the mouth of the plane. I wonder whether the distance to the chip breaker is more important? Can anyone tell me before I have to get out my calculator what is 0.1 mm in an english fractional unit?

#10 nertz

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Posted 24 July 2012 - 12:47 AM

Needless to say I loved the link……my daughters thought I had gone completely mad as I sat completely engrossed watching this from start to finish last night.
neil

#11 Brad Dorsey

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Posted 24 July 2012 - 07:18 AM

...what is 0.1 mm in an english fractional unit?


about 1/255
I feel more like I do now than I did when I got here.

#12 go_oa

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Posted 24 July 2012 - 12:26 PM

For pratical purposes, 3 significant figures is too much!

25 mm per inch
1 mm is 0.040 in.
0.1 mm is 0.004 in
0.05 mm is .002 in

10 cm is 4 Inches
30 cm is a foot
1 Meter is a long yard.

500 gm is a big pound
1000 kg is a long ton

100 Km/Hr is 60 MPH

The exact conversions are for machinists and accountants!

#13 Jeff White

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Posted 24 July 2012 - 09:55 PM

mesmerizing :blink:

Oded

Yeah, maybe it was the music, but I felt like I was in a trance. Help me here, I use a plane, but don't know that I have ever used a "cap iron". Can anyone explain? I see the difference...actually extremely interesting. What happens if you use a hollow grind on the upside of your plane?

Jeff White   "When only used will do"


#14 nertz

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Posted 25 July 2012 - 12:43 AM

My understanding of the terminology is that the lever cap is just the metal piece that holds the blade firm against the bed of the plane, just as a wedge does in a traditional old wood plane.
On a “Stanley style” plane you have the chip breaker (or cap iron) usually screwed to the blade and the lever cap using sprung tension to hold the blade and chip breaker firmly in place.
On a block plane there will be no chip breaker/cap iron and the lever cap will with a screw mechanism usually hold the blade down against the bed of the plane.
Generally bench planes (such as smothers, panel and jointers) will have the ground bevel on the plane blade facing downwards, where as smaller planes such as block planes, chariot planes, shoulder planes etc. will have the bevel facing upwards.
Traditionally a bevel down plane will have a chip breaker/cap iron and a bevel up plane won’t.
There are plenty of exceptions to this very general rule and today there are plane makers producing bevel down planes without chip breakers and traditional sized bench planes that are bevel up.
Neil

#15 Berl Mendenhall

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Posted 25 July 2012 - 07:27 AM

I'm with Neal on this. I found it very interesting. Not hard for me to watch. I'm a tool geek though. There are few things in wood working that feel better than using a sharp, tuned hand plane.

Berl
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#16 violins88

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Posted 25 July 2012 - 07:37 AM

I'm with Neal on this. I found it very interesting. Not hard for me to watch. I'm a tool geek though. There are few things in wood working that feel better than using a sharp, tuned hand plane.

Berl


Berl,
Yes. Same for me too. OTH, I know a very smart fellow who is an amateur woodworker. He said he uses handplanes. When I asked him about his sharpening method, what kind of honing stones he uses, he said, "No, I just grind." So he has never used a sharp plane. Wow. I expect him to mail me his plane blades so I can really sharpen them.

#17 James M. Jones

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Posted 25 July 2012 - 10:26 AM

Berl,
Yes. Same for me too. OTH, I know a very smart fellow who is an amateur woodworker. He said he uses handplanes. When I asked him about his sharpening method, what kind of honing stones he uses, he said, "No, I just grind." So he has never used a sharp plane. Wow. I expect him to mail me his plane blades so I can really sharpen them.

I use the break disk hone that I made from your postings here,Is that your idea? ....thanks! works great .Right now I just back the thing up to a drill press with a rubber sanding drum in the chuck for power...works a charm...I used the seat adjustment from an old bicicle for a tool rest.
Watching the vidieo I'm reminded of water, air ...and of cut angles for hardwoods,that a steeper angle can help reduce tearout with non cap iron blades,The increased angle acts more as a plow with increased shear force compaired to tensile -splittling force on the wood. anyone know the max angle? I THINK I heard 50 degrees. An increased angle seems like a good workaround for a bevel up blade.
I don't understand either...I sent two boats AND a helicopter.....

#18 David Beard

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Posted 25 July 2012 - 11:02 AM

Check out his other video. It gets pretty funny toward the end!

Buying a Smoothing Plane
David in Santa Barbara

#19 James M. Jones

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Posted 25 July 2012 - 11:16 AM

Check out his other video. It gets pretty funny toward the end!

Buying a Smoothing Plane

$5 for a #4? "sounds like a lot of monney."
I don't understand either...I sent two boats AND a helicopter.....

#20 Michael_Molnar

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Posted 25 July 2012 - 11:52 AM

I enjoyed this very much. Thanks, John, for pointing this out.

Mike




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