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Thread: Cutting a steel steerer

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    Default Cutting a steel steerer

    I've got the GT back with a new steel fork. As tempted as I am to create a chin rest for riding in the drops, I need to cut it. What is the best way, a hacksaw or a tubing cutter? My only experience before was with a steel steerer on my Gunnar Crosshair and another one on a Soma. Those steerers where thick and heavy and I used a neighbor's cutting wheel (he built race car frames) but I don't live there anymore and all I have at my disposal is a hacksaw and I can get a pipe cutter.
    Weight Doper

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    Default Re: Cutting a steel steerer

    Hacksaw with a Park Cutting guide is how I do it.

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    Default Re: Cutting a steel steerer

    Quote Originally Posted by Jonathan View Post
    Hacksaw with a Park Cutting guide is how I do it.
    A big vise makes things nice too. And some files.
     

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    Default Re: Cutting a steel steerer

    cut twice and measure after...
    or something like that...
     

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    Default Re: Cutting a steel steerer

    You don't need a guide if you carefully mark a straight cut with any kind of tape. Use a brand new, never used, hacksaw blade (dull blades don't cut straight). Cut about 1 mil longer than your tape. Use a file to remove the remaining material to the edge of the tape. Check your file job with a small machinist or small carpenters square.
     

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    Default Re: Cutting a steel steerer

    Don't use a tubing cutter; they're made for softer tubing such as copper plumbing pipe. Sure; it'll cut the steel steerer, but it will flare the cut edge which you'll then need to file away-a pain. Use the cutting guide or the poor man's version; a hose clamps positioned on either side of the cut line. Sandpaper will clean up the cut nicely.
     

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    Default Re: Cutting a steel steerer

    It's done. Used a hacksaw and an old stem as a guide. I used my dremel to clean up the edges. It's a Nobilette GT and I'll get some pictures up tomorrow after I finish the build. On a side note, I'd like to travel to Italy and throat punch the guy at campy who decided that Torx fasteners were a good idea. All my torx tools are screwdrivers which add a degree of difficulty when mounting brakes.
    Weight Doper

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    Default Re: Cutting a steel steerer

    I've used a tubbing cutter from a diy plumbing project a couple times. The guide I used for the last two makes it MUCH easier.
     

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    Default Re: Cutting a steel steerer

    lathe. done and done
     

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    Default Re: Cutting a steel steerer

    Quote Originally Posted by SteveP View Post
    cut twice and measure after...
    or something like that...
    I cut twice and it's still too short.
     

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    Quote Originally Posted by bigbill View Post
    It's done. Used a hacksaw and an old stem as a guide. I used my dremel to clean up the edges. It's a Nobilette GT and I'll get some pictures up tomorrow after I finish the build. On a side note, I'd like to travel to Italy and throat punch the guy at campy who decided that Torx fasteners were a good idea. All my torx tools are screwdrivers which add a degree of difficulty when mounting brakes.
    Here Here! On throat punching that guy at Campy!
     

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    Default Re: Cutting a steel steerer

    Thread's not quite six years old...sorry...but:

    Is there a correct or preferred type of file for cleaning up the steel steerer after cutting to size? Sorry for the dumb question, but I'm about to cut the first steel steerer I've had in 32 years and I don't want to muck it up. Thanks y'all.
    -Jasper

    "I never considered a difference of opinion in politics, in religion, in philosophy, as cause for withdrawing from a friend." - Thomas Jefferson

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    Default Re: Cutting a steel steerer

    Quote Originally Posted by King Of Dirk View Post
    Thread's not quite six years old...sorry...but:

    Is there a correct or preferred type of file for cleaning up the steel steerer after cutting to size? Sorry for the dumb question, but I'm about to cut the first steel steerer I've had in 32 years and I don't want to muck it up. Thanks y'all.
    Did it for a suspension fork a few weekends ago at Garro's (Coconino) shop and he had something like this. ROTHENBERGER Deburring Tool,2 Overall Length '('In.')' - 53RE74'|'116 - Grainger
    Weight Doper

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    Default Re: Cutting a steel steerer

    Quote Originally Posted by King Of Dirk View Post
    Thread's not quite six years old...sorry...but:

    Is there a correct or preferred type of file for cleaning up the steel steerer after cutting to size? Sorry for the dumb question, but I'm about to cut the first steel steerer I've had in 32 years and I don't want to muck it up. Thanks y'all.
    Quote Originally Posted by bigbill View Post
    Did it for a suspension fork a few weekends ago at Garro's (Coconino) shop and he had something like this. ROTHENBERGER Deburring Tool,2 Overall Length '('In.')' - 53RE74'|'116 - Grainger
    I am no builder, engineer, or trained metallurgy person but I cut a lot of steel steerer back in the day. The tool that Bill linked to is really interesting but most any half-round metal file will do. You want to debur the inside and outside. It doesn't take much because you are not reshaping anything, just removing some small bits all the way around (inside and out).
    Brian McLaughlin

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    Default Re: Cutting a steel steerer

    Gents, thank you both. I appreciate you taking the time to help a hand-tool doofus.
    -Jasper

    "I never considered a difference of opinion in politics, in religion, in philosophy, as cause for withdrawing from a friend." - Thomas Jefferson

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    Default Re: Cutting a steel steerer

    de-burring is an afterthought detail and almost impossible to get wrong.

    the things to absolutely get right are the length and getting the cut square.

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    Default Re: Cutting a steel steerer

    Quote Originally Posted by AngryScientist View Post
    de-burring is an afterthought detail and almost impossible to get wrong.

    the things to absolutely get right are the length and getting the cut square.
    A new cutting guide from the good folks at Unior and a new 32tpi blade have me ready to roll, just want to clean up correctly afterward.
    -Jasper

    "I never considered a difference of opinion in politics, in religion, in philosophy, as cause for withdrawing from a friend." - Thomas Jefferson

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    Default Re: Cutting a steel steerer

    A deburring tool is so cheap, and such a pleasure to use, itís seriously worth considering for just one steerer. But once you have it youíll use it a lot. Something so satisfying about using one (the first tool in this clip) to take off an edge.



    TH
    Last edited by thollandpe; 06-06-2019 at 08:54 PM.
     

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    Default Re: Cutting a steel steerer

    Quote Originally Posted by thollandpe View Post
    A deburring tool is so cheap, and such a pleasure to use, it’s seriously worth considering for just one steerer. But once you have it you’ll use it a lot. Something so satisfying about using one (the first tool in this clip) to take off an edge.
    Thanks, Tee-Aitch. You're such an enabler. Don't go changin'.

    First tool in clip will be added to tool chest post haste. It is equally useful on the outer edge, or is the tool at 0:41 the prudent choice? I got lots of empty space in the aforementioned tool chest...
    -Jasper

    "I never considered a difference of opinion in politics, in religion, in philosophy, as cause for withdrawing from a friend." - Thomas Jefferson

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    Default Re: Cutting a steel steerer

    You go, man, I am here for you. I have only had the inner edge twirly thing (which is also good for deburring straight edges) but have never had an outer diameter deburring thingie. I rely on files for that.

    And deburring isn’t really done right if you can’t resist swiping that chip off with a fingertip and drawing a little blood.

    TH
     

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