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Old 10-31-2017, 10:21 AM
Travis Frink Travis Frink is offline
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"Adjusting" shear blades

I got a new pair of Maruko diamond shears as a thanks for a couple cherry wood blocks I made for a friend with the rather ambiguous caveat that said shears need to be "customized to cut right". And they don't (I'm spoiled after using Carlo Dona shears). The blades don't meet right and significant sideways force is needed to get them to meet and cut right.

My question: Is there a "proper" or better way to bend or cold forge shear blades so they meet and thus cut right? They are thin. What should be the focal point? Hammer? Mallet? Bench Vice? Don't even try?

Thanks for any advice
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Old 10-31-2017, 11:57 AM
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Rich Samuel Rich Samuel is offline
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Did you possibly get a prototype? ( https://www.reddit.com/r/glassblowin..._cutting_edge/ )
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Old 10-31-2017, 06:32 PM
Travis Frink Travis Frink is offline
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Could be. I don't know. Sounds like the same problem I'm having. I'd just like to get them to cut better. They are the coolest looking diamond shears I have but I'm not much for using tools as decorations.
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Old 10-31-2017, 07:50 PM
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Scott Dunahee Scott Dunahee is offline
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I have sent tools to Jim Moore to be tuned up before. He did a remarkable job with some old esemce (sp?) shears I had.

Just an idea.

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Old 10-31-2017, 09:06 PM
Eben Horton Eben Horton is offline
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Take them apart.. one side has threads for the bolt that holds them together, and the other side doesn't have threads. take an open end socket and tighten that bolt so that the shears feel tight, but not too tight. Then without moving the bolt, thread on the nut and with one hand on the wrench that is holding the bolt, take another wrench and crank down on the nut so that the nut compresses against the side of the shear. if you move that bolt at all, you will throw off the tuning you just did.
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Old 10-31-2017, 10:39 PM
Travis Frink Travis Frink is offline
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Quote:
Originally Posted by Eben Horton View Post
Take them apart...
I tried that. The blades don't meet without significant sideways pressure while cutting. The blades look like they need to be bent slightly to meet properly.

If Jim Moore was closer, I might ask him. Then again I kind of like the idea of learning and then being able to maintain my of tools.
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