Original Posted By: "FandS_Piet"
Im ready to order spruce for my wood gear and am wondering if I should by sparstock that is 2 3/4" x 1" and rip it down or cap strip that comes 2 1/2" x 1 andis about half the price. I wasnt sure if the capstrip was high enough qualityspruce to use for the gear.Thanks--------Fred KimPittsburgh, PaRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Brazed 4130
Pietenpol-List: Brazed 4130
Pietenpol-List: Re: Brazed 4130
Original Posted By: "tools"
I have done alot of research about brazing 4130 and it was easy to come to theconclusion that, to say the the least it is not advisable. Unfortunately theresearch was done after we have already brazed some of our metal fittings. Nowknowing it should not be done my question is, is there anybody that is flyingwith brazed 4130?--------Fred KimPittsburgh, PaRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Brazed 4130
I have done alot of research about brazing 4130 and it was easy to come to theconclusion that, to say the the least it is not advisable. Unfortunately theresearch was done after we have already brazed some of our metal fittings. Nowknowing it should not be done my question is, is there anybody that is flyingwith brazed 4130?--------Fred KimPittsburgh, PaRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Brazed 4130
Pietenpol-List: Re: Brazed 4130
Original Posted By: "taildrags"
tools wrote:> In any case, your reasoning is correct. With this program (pretty cool by theway, nice find!) I'd set the thickness of the tubing to .001 for an accuratepattern to follow for the outside diameter. Then, try to visualize exactly whatis going on when you grind, file or cut to shape to make sure you don't "undercut".If you delibrately err the other way, you'll merely have to file awaya portion of the thickness of the tubing as you fit to get a perfect union.You can then rest assured you'll have a good fitting inner and outer diameters,and will weld up securely.Ok, this is essentially what I did tonight... on the first try. I just wasn'tgetting (and still kind of don't) how the OD is not important. I would thinkthat attempt cutting to the ID, especially on the side of the acute angle, wouldbe difficult and would create the unwanted situation that you describe. Cuttingto the OD will at least leave material necessary to grind/file to fit...cutting to ID, not the case. Anyhow, this is being made too difficult. I've only offered this to eliminatethe guesswork on these complex shapes. Use whatever method you prefer to getthe correct angles, plug in your details and print. Transfer to your materialand cut/grind/file to fit.--------Mark ChouinardWings, Center Section and Empannage and Fuse framed up - Working on Landing GearRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Brazed 4130
tools wrote:> In any case, your reasoning is correct. With this program (pretty cool by theway, nice find!) I'd set the thickness of the tubing to .001 for an accuratepattern to follow for the outside diameter. Then, try to visualize exactly whatis going on when you grind, file or cut to shape to make sure you don't "undercut".If you delibrately err the other way, you'll merely have to file awaya portion of the thickness of the tubing as you fit to get a perfect union.You can then rest assured you'll have a good fitting inner and outer diameters,and will weld up securely.Ok, this is essentially what I did tonight... on the first try. I just wasn'tgetting (and still kind of don't) how the OD is not important. I would thinkthat attempt cutting to the ID, especially on the side of the acute angle, wouldbe difficult and would create the unwanted situation that you describe. Cuttingto the OD will at least leave material necessary to grind/file to fit...cutting to ID, not the case. Anyhow, this is being made too difficult. I've only offered this to eliminatethe guesswork on these complex shapes. Use whatever method you prefer to getthe correct angles, plug in your details and print. Transfer to your materialand cut/grind/file to fit.--------Mark ChouinardWings, Center Section and Empannage and Fuse framed up - Working on Landing GearRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Brazed 4130
Original Posted By: Jim Markle
Gerry: please tell me that the Corben that was bent in the "violent crash" wasnot the one with the beautiful polished cooling eyebrows? Oh, Lord- I am gladthat you are alright. Rum thing, losing an airplane, though...--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Fri, 12 Oct 2012 06:55:11 -0500 (GMT-05:00)
Gerry: please tell me that the Corben that was bent in the "violent crash" wasnot the one with the beautiful polished cooling eyebrows? Oh, Lord- I am gladthat you are alright. Rum thing, losing an airplane, though...--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Fri, 12 Oct 2012 06:55:11 -0500 (GMT-05:00)