Comments on: Just A Little Help Coping…Your Tubes http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/ All tools. All the time. Your source for news, information, and reviews of hand tools, power tools, and tools of all kinds. Mon, 07 Jul 2008 01:44:29 +0000 http://wordpress.org/?v=2.0.2 by: Fred http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255812 Thu, 13 Mar 2008 12:53:44 +0000 http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255812 We recularly cope round wood stock to fit into other round stock. This is trivial (we just make us a jig out for scrap to hold the dowel tigihtly and gude a holesaw or forstner bit to slice through the end. For welding tubing - especially high pressure fluid or gas lines - the coping needs much more precision - and eyeballing may not "cut it" We recularly cope round wood stock to fit into other round stock. This is trivial (we just make us a jig out for scrap to hold the dowel tigihtly and gude a holesaw or forstner bit to slice through the end.

For welding tubing - especially high pressure fluid or gas lines - the coping needs much more precision - and eyeballing may not “cut it”

]]> by: Hal Eckhart http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255607 Wed, 12 Mar 2008 22:49:49 +0000 http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255607 I noticed the mention above of the tubemiter program. That's what I first started with, but it was a little awkward to use, and only produced the theoretical outer intersection of the cope. This meant you usually had to trim a bunch of excess off the cut. I believe tubemiter simply packaged Eric Fahlgren's original script and ran it in Windows. Eric kindly talked me through the nitty gritty of his script. At least it was enough for me to hack together my PHP version to where I was happy with it. Thanks for the traffic! I noticed the mention above of the tubemiter program. That’s what I first started with, but it was a little awkward to use, and only produced the theoretical outer intersection of the cope. This meant you usually had to trim a bunch of excess off the cut. I believe tubemiter simply packaged Eric Fahlgren’s original script and ran it in Windows. Eric kindly talked me through the nitty gritty of his script. At least it was enough for me to hack together my PHP version to where I was happy with it.

Thanks for the traffic!

]]> by: Chaim http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255448 Wed, 12 Mar 2008 11:44:56 +0000 http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255448 Got it, like coping baseboards. kewl, thanks Chris! But it would drive me crazy if I had to do that as the major part of my work like making a bike! Got it, like coping baseboards. kewl, thanks Chris! But it would drive me crazy if I had to do that as the major part of my work like making a bike!

]]> by: Chris http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255441 Wed, 12 Mar 2008 11:11:10 +0000 http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255441 @Chaim: Imagine coping a wooden dowel to fit flush at a 90º angle in the middle of another wooden dowel of the same diameter (so the end result is a big wooden T made of dowels) and you should have some idea of what's going on here. Alternatively, take a look at any of the welds on a typical bicycle frame next time you're out in the garage/shed/basement (or wherever else you might keep a bike). cl @Chaim: Imagine coping a wooden dowel to fit flush at a 90º angle in the middle of another wooden dowel of the same diameter (so the end result is a big wooden T made of dowels) and you should have some idea of what’s going on here.

Alternatively, take a look at any of the welds on a typical bicycle frame next time you’re out in the garage/shed/basement (or wherever else you might keep a bike).

cl

]]> by: Chaim http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255289 Wed, 12 Mar 2008 03:37:13 +0000 http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255289 I do wood and I have no idea what this is talking about, will someone enlighten me? I do wood and I have no idea what this is talking about, will someone enlighten me?

]]> by: tmib_seattle http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255273 Wed, 12 Mar 2008 02:53:20 +0000 http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255273 I used a program similar to this (tubemiter.exe http://www.ihpva.org/people/tstrike/building/tubemit.htm) when I built my chopper frame. Pretty handy. Trace it with a good sharpie or fat max marker, and then you can cut with an angle grinder to get close. Follow with a die grinder to get right to the line. Works well. I used a program similar to this (tubemiter.exe http://www.ihpva.org/people/tstrike/building/tubemit.htm) when I built my chopper frame. Pretty handy. Trace it with a good sharpie or fat max marker, and then you can cut with an angle grinder to get close. Follow with a die grinder to get right to the line. Works well.

]]> by: BC http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255027 Tue, 11 Mar 2008 20:07:39 +0000 http://toolmonger.com/2008/03/11/just-a-little-help-copingyour-tubes/#comment-255027 This could be handy in other places too. Neat. I'll probably never use it, but I'm bookmarking it just in case. This could be handy in other places too. Neat. I’ll probably never use it, but I’m bookmarking it just in case.

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