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21st August 2007, 11:29 PM #1Novice
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- Mar 2007
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- Canada
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- 18
removing stuck blades from old planes
I've got two planes that I picked up in flea markets in rural Japan this past spring. The blades are stuck, and so far with a reasonable amount of force I haven't been successful in freeing them. I'm not too familiar with Japanese planes, but do know that you're supposed to tap them to remove the blades. Anyone have suggestions?
The planes may have been stored in a wet location, but I really don't know. Since I bought them, they sat in a relatively dry location in Hong Kong (if such a place can exist in Hong Kong) and have spent the last 3 months traveling to Canada in a box. I'm picking them up from the post office today.
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21st August 2007 11:29 PM # ADSGoogle Adsense Advertisement
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21st August 2007, 11:35 PM #2
Hi Bannock,
Without being an expert on Japanese planes, if Canada Post hasn't by now freed the blades up you might try an hour or two in the freezer-the blade might shrink enough to break its bond with the wood plane body. Dry ice would be even better, with the added benefit of being a free cryogenic treatment for the blade*
*I'm told that cryo only works on some of the alloy tool steels, so this is a tongue in cheek comment.
Cheers
Greg
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22nd August 2007, 04:48 AM #3Novice
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- Mar 2007
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- Canada
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- 18
I'll have to keep you updated later....the planes didn't arrive after all, Canada Post still has them. Maybe I can wait for some -30 degree weather this winter and leave the plane outside....
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25th October 2007, 10:04 AM #4Senior Member
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- Feb 2007
- Location
- NSW
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- 107
How to remove the blade from an old plane
Hi mate,
Am I too late for this? If not let me hear from you again, and I'll tell you the foolproof yet super effective way. Apart from this technique, it's likely to chip the corner of the dai.
Cheers~~
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30th October 2007, 11:36 PM #5Happy Feet
- Join Date
- Sep 2007
- Location
- Armadale
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- 1,150
use heat
could you use the same method that I and a lot of others use to loosen old screws?
used a lighter to heat the blade , let it cool .
the heat expands the metal and "stretches" the timber or metal around the blade when it cools down it shrinks again and leaves a gap.
astrid
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31st October 2007, 09:48 AM #6
But if you heat the blade and the timber 'stretches', what happens when everything cools and settles and the blade will no longer stay in the plane? One ruined plane!! Nuh Uh! Sorry Astrid, but I'd be going with the freezer option personally! Or Soatoz's method.
WendyBox Challenge 2011 - Check out the amazing Boxes!
Twist One - Wooden Hinge/Latch/Catch/Handle
Twist Two - Found Object
Twist Three - Anything Goes
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31st October 2007, 11:40 PM #7Happy Feet
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- Armadale
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it do'snt strech that much
i've only used this on stuck screws. the timber only moved tenth of a ml or so just enough to break the screw free. timber should settle back.
but as i said ive never tried it with a plane
cheers
astrid
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1st November 2007, 10:19 AM #8
Oh, screws - yeah, definitely heat them (must remember that Thanks Astrid) but not plane blades.
cheers
Wendy
PS Soatoz - what's your method?Box Challenge 2011 - Check out the amazing Boxes!
Twist One - Wooden Hinge/Latch/Catch/Handle
Twist Two - Found Object
Twist Three - Anything Goes
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5th November 2007, 01:26 PM #9Novice
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- Mar 2007
- Location
- Canada
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- 18
update - the blade's now out
Well, the blade came out after a few months in Canada. Maybe it was the lower humidity, but I picked it up the other day and gave the back of the plane a wack with a wooden hammer and this time it came out. Now I need to get the rust off the blade...
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6th November 2007, 10:22 PM #10
Hi Bannock
My preferred starting point is always electrolysis. No doubt there is plenty of advice on this topic somewhere in these forums, but here is ready reference:
http://www.antique-engines.com/electrol.asp
NeilStay sharp and stay safe!
Neil
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23rd November 2007, 12:45 PM #11
This method is obviously for the future, since the blade in question is no longer stuck.
When all the usual methods had failed, I had luck by clamping the end of the blade in vice-grips and then clamping the vice-grips in such a way that the kanna dai was clear enough to hammer it. Worked like a charm. If you want to prevent the blade from being marked by the vice-grips you will have to pad the jaws somehow, but they may not grip as well. My blade was only slightly marked but was not particularly valuable anyway, but of what use is even a valuable blade if it can't be adjusted or removed for sharpening?
I suppose you could destroy the dai (cut it or split it open) so as to not risk damage to the blade. Not likely a problem I will have to deal with (all my valuable blades are still in somebody's store window).
Steve
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29th December 2007, 10:34 AM #12New Member
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- Oct 2007
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- chicago
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- 7
what was soatz's method? i got a couple antique planes for xmas and boy are they stuck.
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29th December 2007, 11:52 AM #13
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31st January 2008, 04:29 PM #14Senior Member
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- Feb 2007
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- NSW
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- 107
Sorry to post so late.
Stuck plane blade can be taken out by holding the plane upside down and hitting the head of the dai square to the kerb stone with towel over it. You need to make sure the head hits the kerb flat, and not hit the corner, otherwise the dai is going to crack.
You need to hit quite hard.
Thanks
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