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Aug 23, 2022 at 12:30 comment added Jake Henry @DKNguyen Yeah I've already got all kinds of features milled onto the tube. I've added an actual picture of it to my question above if you want to see it. Its a model train smoke stack. A jig like structure (made of wood?) could work if I can't get my preferred method of using the spring loaded center to work.
Aug 23, 2022 at 4:24 comment added DKNguyen @JakeHenry Shouldn't you mill a little guide slot and press or slip fit the tube in before brazing it? Might be able to mill a curvature on the tube as well. Not enough stock thickness to do anything other than a butt connection?
Aug 22, 2022 at 19:04 history edited Solar Mike CC BY-SA 4.0
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Aug 22, 2022 at 19:03 comment added Jake Henry @DKNguyen I do have a heat gun so I could try that as well. I can't pre-heat the piece before insertion to the vice because I need to precision aline the mill head over it to get the precise angle.
Aug 22, 2022 at 19:02 comment added Jake Henry @SolarMike Okay I didn't know if you meant something else in addition. Just wanted to make sure. Thanks.
Aug 22, 2022 at 18:45 comment added Solar Mike @JakeHenry I clearly mentioned a second torch and even suggested two compared to one large, so that is the arranging preheat.
Aug 22, 2022 at 18:42 comment added DKNguyen @JakeHenry Presoak/Increase the ambient temperature around the piece somehow. Like with a heatgun running while you solder. Yes, of the entire piece somewhat. Your vise can handle being at 100 or 150C, right? Or even more? Maybe easier to preheat the piece before sticking it into the vise?
Aug 22, 2022 at 18:33 comment added Jake Henry Can you clarify what you mean by "arranging pre-heat" a bit more? A second torch might work in this situation because part of the challenge is I have to constantly keep moving my torch around to both parts and the heat instantly sinks away when I move it from one part to another.
Aug 22, 2022 at 18:15 history answered Solar Mike CC BY-SA 4.0