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 Post subject: Cutting an ISP
PostPosted: Wed Apr 25, 2012 6:16 pm 
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Joined: Sun Jan 27, 2008 10:20 pm
Posts: 65
Any tips on cutting one, and ideas on tools needed?

I know the adage measure twice cut once


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 Post subject: Re: Cutting an ISP
PostPosted: Wed Apr 25, 2012 7:14 pm 
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Joined: Sun Sep 28, 2008 2:23 am
Posts: 658
Location: so. cal.
depending on the frame
some like my look 595 come with a clamp to guide you.
even with the guide i usualy put electrical tape around the area to be cut, to minimize the fraying a bit. make sure use a new blade of you are using a manual saw.


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 Post subject: Re: Cutting an ISP
PostPosted: Wed Apr 25, 2012 11:11 pm 
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Joined: Sat Dec 13, 2003 2:25 am
Posts: 4748
Location: Canada
You don't need any special equipment. Use a layer of tape as roca rule has advised and a very fine (32 TPI) blade. Cut part way through, stop, and complete the cut from the opposite side. Finish the cut with a very gentle bevel using a fine, sharp mill bastard file.

Oh yeah, do it outside using a mask, eye protection and gloves.


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 Post subject: Re: Cutting an ISP
PostPosted: Thu Apr 26, 2012 12:04 am 
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Joined: Fri Oct 28, 2011 3:25 am
Posts: 1311
Location: United Kingdom of Great Britain and Northern Ireland
Geoff wrote:
You don't need any special equipment.


Er ... tube cutting guide?


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 Post subject: Re: Cutting an ISP
PostPosted: Thu Apr 26, 2012 12:07 am 
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Joined: Sat Dec 13, 2003 2:25 am
Posts: 4748
Location: Canada
Not required.


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 Post subject: Re: Cutting an ISP
PostPosted: Thu Apr 26, 2012 3:23 am 
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Joined: Sun Sep 13, 2009 4:22 pm
Posts: 41
borrow a jig from ur LBS. Less chance of going wrong during sawing.


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 Post subject: Re: Cutting an ISP
PostPosted: Thu Apr 26, 2012 3:55 am 
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Joined: Thu Apr 12, 2012 4:33 am
Posts: 220
I've cut the isps on my Wilier Cento SL and Look 695. The Wilier uses the seat topper so it doesn't require a perfectly precise cut. The Look, since the seatpost inserts into the seat tube, leaves the ISP completely exposed to the edge - so it requires a perfectly precise and level cut. Not sure how handy you are, but for the 695, I used my belt sander with the guide still attached to level out any inconsistencies. Then I took some 600 grit paper and ran it around the corner edge to prevent the clearcoat from chipping. If you're not comfortable with cutting the post, spend the money for the LBS to do it since there's no going back. Good luck!


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 Post subject: Re: Cutting an ISP
PostPosted: Thu Apr 26, 2012 9:37 am 
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Joined: Sat Jun 19, 2004 11:08 am
Posts: 6769
Location: Urbana, Illinois
I cut my Scott Plasma 2 tt bike. I used the Park guide. http://www.parktool.com/product/oversiz ... ide-sg-7-2 As others have mentioned a brand new 32 tooth hacksaw blade. A high quality hack saw. I measured everything about 10 times over a couple of days since a mistake can make the frame useless to you. Wrapped the section where I was going to cut with masking tape and cut thru the tape. I did the half cut flipping the guide too. All said pretty easy and a nice no splinter cut.

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 Post subject: Re: Cutting an ISP
PostPosted: Thu Apr 26, 2012 7:04 pm 
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Joined: Thu Apr 12, 2012 4:33 am
Posts: 220
Juanmoretime wrote:
I cut my Scott Plasma 2 tt bike. I used the Park guide. http://www.parktool.com/product/oversiz ... ide-sg-7-2" onclick="window.open(this.href);return false; As others have mentioned a brand new 32 tooth hacksaw blade. A high quality hack saw. I measured everything about 10 times over a couple of days since a mistake can make the frame useless to you. Wrapped the section where I was going to cut with masking tape and cut thru the tape. I did the half cut flipping the guide too. All said pretty easy and a nice no splinter cut.


I did this as well - definitely a good suggestion to wrap the tube it tape as it helps prevent splintering. But cutting from the other side is also key.


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