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How to cut rubbers with 1-2 mm overlap/excess

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speaquinox View Drop Down
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    Posted: 08/11/2012 at 6:03pm
I use exacto knife to cut my brand new rubbers. I'm pretty good at cutting rubbers for a perfect fit. Though, I'd like to cut 1-2 mm wider/bigger than normal. How to do that nicely with keeping the overlap same around the head? Does anyone have a walkaround?
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decoi View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote decoi Quote  Post ReplyReply Direct Link To This Post Posted: 08/11/2012 at 6:44pm
what kind of knife??
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Stoi Quote  Post ReplyReply Direct Link To This Post Posted: 08/11/2012 at 6:57pm
I would say use something plastic (the 1-2mm you need) to drag along with the knife. You will have stable distance from blade. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote speaquinox Quote  Post ReplyReply Direct Link To This Post Posted: 08/12/2012 at 3:40am
somthing like this
 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Imago Quote  Post ReplyReply Direct Link To This Post Posted: 08/12/2012 at 3:44am
Thick and sharp scissors.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GoldenDragoon Quote  Post ReplyReply Direct Link To This Post Posted: 08/12/2012 at 9:46am
I would suggest gluing a small piece of plastic to your knife blade so it clears the blade. Glue it on a few mm up the blad though so it touches any your paddle and the rubber.
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Roger Stillabower Quote  Post ReplyReply Direct Link To This Post Posted: 08/12/2012 at 10:32am
I sometimes will use Lable maker tape around the edge of my blade before I put the rubbers on and that with keeping my blade angle straight will give me 1 to 2 mm. over edge of blade. I have also found if I wait about 24 hours before cutting rubbers I don't get as much shrinking.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote louisc Quote  Post ReplyReply Direct Link To This Post Posted: 08/12/2012 at 12:26pm
Just a thought... You could reverse - rotate (180 degrees) the blade of the cutter? With this way the backside of the cutter will facing the blade while cutting in order to gain the thickness of the cutter on your rubber.... I am not quite sure if it's possible to reverse the blade 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote magister Quote  Post ReplyReply Direct Link To This Post Posted: 08/13/2012 at 12:54am
Scissors always leave my rubbers a little larger than the head of the blade.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote doraemon Quote  Post ReplyReply Direct Link To This Post Posted: 08/13/2012 at 2:28am
I have many blades.  See if I want to have rubber extended by 1 - 2 mm, I simply use another blade (bigger dimension) to cut the rubbers, and then when I fit them to my smaller blade,... voila.....  I have perfect cut with 1 - 2 mm extended.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote asmagus Quote  Post ReplyReply Direct Link To This Post Posted: 08/13/2012 at 3:40am
Maybe this will help?

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Post Options Post Options   Thanks (0) Thanks(0)   Quote TurboZ Quote  Post ReplyReply Direct Link To This Post Posted: 08/13/2012 at 7:43am
There is a portable machine for the job. You can leave 0 to 2mm of gap as you wish and everyone can cut like a pro!
Here is the demo video.
 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote andy.h Quote  Post ReplyReply Direct Link To This Post Posted: 08/13/2012 at 11:30am
Originally posted by TurboZ TurboZ wrote:

There is a portable machine for the job. You can leave 0 to 2mm of gap as you wish and everyone can cut like a pro!
Here is the demo video.

Wow, that's impressive. Is this machine expensive?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote nathanso Quote  Post ReplyReply Direct Link To This Post Posted: 08/13/2012 at 11:52am
Apply a few extra layers of edge tape to you blade prior to cutting. After the rubber is cut to this slight oversize, remove the extra layers. Works for me. The thick 'edge protector' edge tapes are good for this.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote decoi Quote  Post ReplyReply Direct Link To This Post Posted: 08/13/2012 at 2:03pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fructu Quote  Post ReplyReply Direct Link To This Post Posted: 08/13/2012 at 6:53pm
Originally posted by nathanso nathanso wrote:

Apply a few extra layers of edge tape to you blade prior to cutting. After the rubber is cut to this slight oversize, remove the extra layers. Works for me. The thick 'edge protector' edge tapes are good for this.

I think that's simply the best option. It'll hep me a lot and I'll do it myself.

Thanks.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote TurboZ Quote  Post ReplyReply Direct Link To This Post Posted: 08/14/2012 at 12:04am
Originally posted by andy.h andy.h wrote:

Originally posted by TurboZ TurboZ wrote:

There is a portable machine for the job. You can leave 0 to 2mm of gap as you wish and everyone can cut like a pro!
Here is the demo video.

Wow, that's impressive. Is this machine expensive?
 
 
It's about US$80 from taobao plus shipping. It's just released like a month or 2 ago but prototype had been around for a year. For most people it's only the price of a blade so it may interest some. I guess you can charge more for selling your old rubber if it is cleanly cut. And that extra gap will protect the value of your blade against chip much better. So sooner or later it will pay off itself. I am surprise to see most second hand rubbers are poorly cut and turn off potential buyers like me.
 
Here is another link of the video.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote stiltt Quote  Post ReplyReply Direct Link To This Post Posted: 08/14/2012 at 5:50am
very interesting; I wonder what's the mechanism to have the slicing always stay the same distance from the blade all around it since from the center the distance to the edge may vary. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kuifje Quote  Post ReplyReply Direct Link To This Post Posted: 08/14/2012 at 7:20am
Originally posted by fatt fatt wrote:

very interesting; I wonder what's the mechanism to have the slicing always stay the same distance from the blade all around it since from the center the distance to the edge may vary. 


Just a spring I think.


Edited by kuifje - 08/14/2012 at 7:20am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TurboZ Quote  Post ReplyReply Direct Link To This Post Posted: 08/14/2012 at 7:59am
Originally posted by fatt fatt wrote:

very interesting; I wonder what's the mechanism to have the slicing always stay the same distance from the blade all around it since from the center the distance to the edge may vary. 
 
I think it trace from the edge instead of the center of blade so it can always stay the same distance.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote stiltt Quote  Post ReplyReply Direct Link To This Post Posted: 08/14/2012 at 9:06am
Originally posted by TurboZ TurboZ wrote:

Originally posted by fatt fatt wrote:

very interesting; I wonder what's the mechanism to have the slicing always stay the same distance from the blade all around it since from the center the distance to the edge may vary. 
 
I think it trace from the edge instead of the center of blade so it can always stay the same distance.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote atv Quote  Post ReplyReply Direct Link To This Post Posted: 08/14/2012 at 9:36am
I just cut the rubber exactly to the blade, then boost/speed glue the rubber so it will generate that gap...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote louisc Quote  Post ReplyReply Direct Link To This Post Posted: 08/14/2012 at 6:19pm
Originally posted by TurboZ TurboZ wrote:

Originally posted by andy.h andy.h wrote:

Originally posted by TurboZ TurboZ wrote:

There is a portable machine for the job. You can leave 0 to 2mm of gap as you wish and everyone can cut like a pro!
Here is the demo video.

Wow, that's impressive. Is this machine expensive?
 
 
It's about US$80 from taobao plus shipping. It's just released like a month or 2 ago but prototype had been around for a year. For most people it's only the price of a blade so it may interest some. I guess you can charge more for selling your old rubber if it is cleanly cut. And that extra gap will protect the value of your blade against chip much better. So sooner or later it will pay off itself. I am surprise to see most second hand rubbers are poorly cut and turn off potential buyers like me.
 
Here is another link of the video.

Can we find it in any english website?????
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TurboZ Quote  Post ReplyReply Direct Link To This Post Posted: 08/15/2012 at 1:20am
Looks to me it is a one man business who is also the sole designer of the product. Not sure if he is ready to go global. I think all he need is the product get hot in China or some big name buy the right to mass produce it. To be honest it doesn't look too bright in China as most Chinese rubbers are hard and many can cut beautifully with just a 2 dollar blade. I think it suits more to the Western market because of the price and how it deals with soft rubbers.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote yogi_bear Quote  Post ReplyReply Direct Link To This Post Posted: 08/15/2012 at 6:26am
you can also try this- place masking tape at the back of the rubber onto the sponge, place it unto the blade. it must be secured that it will not move. cut the rubber using an office cutter (new one) while pressing the blade against the rubber firmly. remove the rubber and the masking tape then glue the rubber to the blade it will expand for 1 or 2 mm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ZApenholder Quote  Post ReplyReply Direct Link To This Post Posted: 08/15/2012 at 7:54am
Originally posted by yogi_bear yogi_bear wrote:

you can also try this- place masking tape at the back of the rubber onto the sponge, place it unto the blade. it must be secured that it will not move. cut the rubber using an office cutter (new one) while pressing the blade against the rubber firmly. remove the rubber and the masking tape then glue the rubber to the blade it will expand for 1 or 2 mm


But when you take off the rubber to change blades or reglue etc, wont the rubber then strink?
I did something similar before and I end up loosing 1 to 2mm still Unhappy
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Post Options Post Options   Thanks (0) Thanks(0)   Quote vmayon1 Quote  Post ReplyReply Direct Link To This Post Posted: 11/29/2012 at 8:15pm
Just press the TT blade against the blade of the cutting machine, and that will give you a perfect cut everytime just like a band saw.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Takkyu Quote  Post ReplyReply Direct Link To This Post Posted: 12/14/2012 at 10:00pm
That's awesome. I want one, but a bit expensive
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Post Options Post Options   Thanks (0) Thanks(0)   Quote lixiaoduo Quote  Post ReplyReply Direct Link To This Post Posted: 12/18/2012 at 6:26pm

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