Original Posted By: "Douwe Blumberg"
It wasn't as bad as I thought it would be to cut it out. The little cutting toolI have did a nice job. The chisels did the rest, and then the cutter helped"sand" down the epoxy to the wood. I am using West systems epoxy, and it worksvery well. Mixed in with some cab-o-sil and it makes a strong, gap filling bond.Next step: cut a new member and glue it in...Upon inspection of the piece when removed, the compression fracture wasn't allthe way through the whole width of the strut, but still, in the back of your mind,it was always gonna be there. This repair is so simple it was a no brainier.Thanks again for the advice! Here's some pics of the process.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/imag ... __________
Pietenpol-List: Well, I did it... Cut out that compression fracture
Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Original Posted By: "tools"
Subject: Pietenpol-List: Re: Westcoast Piet Meeting @Frazer Lake AirparkWe made our reservations at Hollister for May 30,June 1, so I'm counting on someone else to show up! I'm ready to cover the wings, will probably have this done before the meeting. Otherwise the tail feathers are done, as well as the control system.. Carl and Ann Lekven________________________________________________________________________________Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Subject: Pietenpol-List: Re: Westcoast Piet Meeting @Frazer Lake AirparkWe made our reservations at Hollister for May 30,June 1, so I'm counting on someone else to show up! I'm ready to cover the wings, will probably have this done before the meeting. Otherwise the tail feathers are done, as well as the control system.. Carl and Ann Lekven________________________________________________________________________________Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Original Posted By: "Mark Roberts"
Nicely done. In the end, you find you fret way longer than the actual processtakes. Nice documentation as well, not a lot of this sort of stuff documented, wish Ihad documented my repairs. Lastly, nice job (again) for even finding it! Would be pretty easy to miss.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Nicely done. In the end, you find you fret way longer than the actual processtakes. Nice documentation as well, not a lot of this sort of stuff documented, wish Ihad documented my repairs. Lastly, nice job (again) for even finding it! Would be pretty easy to miss.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Original Posted By: "tools"
Thanks Tools!I might not have tried the repair if it wasn't for the group encouragement. I realizedit was not that tough once I knew it had to be repaired. Even if it wasminor, it would have been MAJOR in my mind during any appreciable turbulence!Will post repaired spot when done.Thanks again for the help and encouragement...Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Thanks Tools!I might not have tried the repair if it wasn't for the group encouragement. I realizedit was not that tough once I knew it had to be repaired. Even if it wasminor, it would have been MAJOR in my mind during any appreciable turbulence!Will post repaired spot when done.Thanks again for the help and encouragement...Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Original Posted By: V Groah
Do you think maybe it was easier to see the fracture after finish was applied?Kind of like using dye penetrant to find cracks in engine components? Have any suspicions as to the cause of the fracture? Wind shake? Never thought to go looking for cracks AFTER building, this may indicate that maybe a really good idea, especially those of us not using "certified" lumber.Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Do you think maybe it was easier to see the fracture after finish was applied?Kind of like using dye penetrant to find cracks in engine components? Have any suspicions as to the cause of the fracture? Wind shake? Never thought to go looking for cracks AFTER building, this may indicate that maybe a really good idea, especially those of us not using "certified" lumber.Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________
RE: Pietenpol-List: Re: Westcoast Piet Meeting @Frazer Lake Airpark
Original Posted By: ANNCARLEK(at)aol.com
Great!!!! hope to see you there. if the weather is good we should have several completed Pietenpols there as well as a great group of builders in various stages of completion. We are in our fifth year and to meet is starting to really come together. A great group of guys and gals. Welcome to the group. Vic NX414MV
Great!!!! hope to see you there. if the weather is good we should have several completed Pietenpols there as well as a great group of builders in various stages of completion. We are in our fifth year and to meet is starting to really come together. A great group of guys and gals. Welcome to the group. Vic NX414MV
Pietenpol-List: Re: Westcoast Piet Meeting @Frazer Lake Airpark
Original Posted By: "Mark Roberts"
I did see the cracks in the raw lumber when I brought it home. I worked at a specialtylumber yard for year with a friend of mine. His dad owned the shop, andhe stocked raw, air dried Sitka and sold it by the board foot for WAAAY lessthan ACS. Youjust have to saw it and plane it to size.So, I saw the fracture, but being lazy, I didn't want to have to cut a new stripand plane it down, so I tried to get the laaaasssst little bit out of the boardI had to size, and I used the end of the piece I cut, but didn't see the oneside that was damaged. I thought I had cut the piece off that had the fracture.I am sure there are no other spots, because I remember that board, and when andwhere I was when using that last piece. All was inspected, but when I grabbedthat one, I knew I was close to the fracture, but some how I missed that side.The rest of the board used didn't have the cracks on it. I know, it sounds like I coud have missed something else if I missed this one spot,but I know the boards I used were clean. I was just trying to push my luck,and should have known better. I'm not in a race. But I am eager to fly!
)It was easier to see when the varnish was applied.Thanks again!MarkRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Westcoast Piet Meeting @Frazer Lake Airpark
I did see the cracks in the raw lumber when I brought it home. I worked at a specialtylumber yard for year with a friend of mine. His dad owned the shop, andhe stocked raw, air dried Sitka and sold it by the board foot for WAAAY lessthan ACS. Youjust have to saw it and plane it to size.So, I saw the fracture, but being lazy, I didn't want to have to cut a new stripand plane it down, so I tried to get the laaaasssst little bit out of the boardI had to size, and I used the end of the piece I cut, but didn't see the oneside that was damaged. I thought I had cut the piece off that had the fracture.I am sure there are no other spots, because I remember that board, and when andwhere I was when using that last piece. All was inspected, but when I grabbedthat one, I knew I was close to the fracture, but some how I missed that side.The rest of the board used didn't have the cracks on it. I know, it sounds like I coud have missed something else if I missed this one spot,but I know the boards I used were clean. I was just trying to push my luck,and should have known better. I'm not in a race. But I am eager to fly!
)It was easier to see when the varnish was applied.Thanks again!MarkRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Westcoast Piet Meeting @Frazer Lake AirparkOriginal Posted By: Jim Boyer
I can't wait! This is one of the best weekends of the year for me.Mark and Jody RobertsRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Mon, 29 Apr 2013 02:21:55 +0000 (UTC)
I can't wait! This is one of the best weekends of the year for me.Mark and Jody RobertsRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Mon, 29 Apr 2013 02:21:55 +0000 (UTC)
Re: Pietenpol-List: Re: Westcoast Piet Meeting @Frazer Lake Airpark
Original Posted By: Michael Groah
Pietenpol-List: determining Vne
Original Posted By: "taildrags"
Ok, this leads to the next question, are those fractures "wind shake" fractures?I've read about them with respect to grading sitka, but have never seen themin all the other species of wood I've worked.If so, are they common, generally easy to see... just trying to learn a littlemore.How it wound up there makes sense and could easily do that myself. Just glad toknow you generally felt confident about knowing where these fractures are asyou dimension the wood.Thanks for the heads up on all of this!Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: determining Vne
Ok, this leads to the next question, are those fractures "wind shake" fractures?I've read about them with respect to grading sitka, but have never seen themin all the other species of wood I've worked.If so, are they common, generally easy to see... just trying to learn a littlemore.How it wound up there makes sense and could easily do that myself. Just glad toknow you generally felt confident about knowing where these fractures are asyou dimension the wood.Thanks for the heads up on all of this!Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: determining Vne
Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Original Posted By: "Mark Roberts"
Tom; thanks for the link. However, it appears that this workshop is based on theDynon and I'm interested in the Garmin. Hard enough to learn one system, letalone two ;o)--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Tom; thanks for the link. However, it appears that this workshop is based on theDynon and I'm interested in the Garmin. Hard enough to learn one system, letalone two ;o)--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Pietenpol-List: Re: determining Vne
Original Posted By: "taildrags"
This looked more like a fracture that came from hitting something after the lumberwas cut. It definitely shattered the first few rings of the wood and couldeasily be seen in the wood. I know other fractures are hairline fractures thatrun across grain. I saw none of those in the wood I cut.Interesting to look and grade your own wood. Some might be scared to do it, butif you read the books/advisories on how to grade wood, it isn't rocket science.The boards I carved up for this were actually vertical grain, spar grade spruce.But, that's all he had on hand, and I was eager to start cutting and makinglittle sticks, so I bought some really sweet wood for the fuse!Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: determining Vne
This looked more like a fracture that came from hitting something after the lumberwas cut. It definitely shattered the first few rings of the wood and couldeasily be seen in the wood. I know other fractures are hairline fractures thatrun across grain. I saw none of those in the wood I cut.Interesting to look and grade your own wood. Some might be scared to do it, butif you read the books/advisories on how to grade wood, it isn't rocket science.The boards I carved up for this were actually vertical grain, spar grade spruce.But, that's all he had on hand, and I was eager to start cutting and makinglittle sticks, so I bought some really sweet wood for the fuse!Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: determining Vne
Pietenpol-List: Re: Westcoast Piet Meeting @Frazer Lake Airpark
Original Posted By: "Mark Roberts"
By the way, I'll save Jack Phillips from going back and re-posting his followupto my post from 2008. Never one to mince words, but always someone who speaksfrom sound experience, he wrote-"I've never had my Pietenpol faster than about 90, and it was really 'not happy'at that speed, and let me know it. As usual, Bernard knew what he was doing."--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Westcoast Piet Meeting @Frazer Lake Airpark
By the way, I'll save Jack Phillips from going back and re-posting his followupto my post from 2008. Never one to mince words, but always someone who speaksfrom sound experience, he wrote-"I've never had my Pietenpol faster than about 90, and it was really 'not happy'at that speed, and let me know it. As usual, Bernard knew what he was doing."--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Westcoast Piet Meeting @Frazer Lake Airpark
Original Posted By: "Clif Dawson"
Wow Mike!! 9 piets this year?? The most we've had in the past has been 3, right?What a fun day this year will be. I need to stock up on my film this year. No,wait. That's SO last century. I think I can get a few thousand pics on my memorycards these days...MarkRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Wow Mike!! 9 piets this year?? The most we've had in the past has been 3, right?What a fun day this year will be. I need to stock up on my film this year. No,wait. That's SO last century. I think I can get a few thousand pics on my memorycards these days...MarkRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Original Posted By: "tools"
Here's a good explanation of ring and wind shake;http://www.woodcentral.com/shots/shot137.shtmlThe following isn't shake but very importantnon the less.This is one you have to watch out for that wasdiscovered through the failure of new woodladders many years ago.What happens is that a tree is felled and landsacross another trunk. This causes the grain to"shift" sideways just a small bit, sometimes onlydetectable under magnification. This is enough toseriously impair the integrity of the grain. In a sparthis will be catastophic.ClifThere is a crack in everything God has made. William Blake>> Ok, this leads to the next question, are those fractures "wind shake" > fractures? I've read about them with respect to grading sitka, but have > never seen them in all the other species of wood I've worked.________________________________________________________________________________Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Here's a good explanation of ring and wind shake;http://www.woodcentral.com/shots/shot137.shtmlThe following isn't shake but very importantnon the less.This is one you have to watch out for that wasdiscovered through the failure of new woodladders many years ago.What happens is that a tree is felled and landsacross another trunk. This causes the grain to"shift" sideways just a small bit, sometimes onlydetectable under magnification. This is enough toseriously impair the integrity of the grain. In a sparthis will be catastophic.ClifThere is a crack in everything God has made. William Blake>> Ok, this leads to the next question, are those fractures "wind shake" > fractures? I've read about them with respect to grading sitka, but have > never seen them in all the other species of wood I've worked.________________________________________________________________________________Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Original Posted By: "Mark Roberts"
Subject: Re: Pietenpol-List: Re: spruce capstripIn a message dated 5/11/2013 2:37:01 P.M. Central Daylight Time, taildrags(at)hotmail.com writes:--> Pietenpol-List message posted by: "taildrags" Aye, it's "Scots", man. Nothing against a little Glenlivet scotch, though!My grandfather, Paul Young, was Scots-Irish. I guess that's why I never throw anything away and always try to make do with what I have ;o)--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... 6#400366So that's why I've always ended up with all my stuff.________________________________________________________________________________Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Subject: Re: Pietenpol-List: Re: spruce capstripIn a message dated 5/11/2013 2:37:01 P.M. Central Daylight Time, taildrags(at)hotmail.com writes:--> Pietenpol-List message posted by: "taildrags" Aye, it's "Scots", man. Nothing against a little Glenlivet scotch, though!My grandfather, Paul Young, was Scots-Irish. I guess that's why I never throw anything away and always try to make do with what I have ;o)--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... 6#400366So that's why I've always ended up with all my stuff.________________________________________________________________________________Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Original Posted By: "taildrags"
I blush.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
I blush.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Original Posted By: "Mark Roberts"
Subject: Pietenpol-List: Re: Westcoast Piet Meeting @Frazer Lake AirparkWe made our reservations at Hollister for May 30=2CJune 1=2C so I'm counting on someone else to show up! I'm ready to cover the wings=2C will probably have this done before the meeting. Otherwise the tail feathers are done=2C as well as the control system.. Carl and Ann Lekven ________________________________________________________________________________Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture
Subject: Pietenpol-List: Re: Westcoast Piet Meeting @Frazer Lake AirparkWe made our reservations at Hollister for May 30=2CJune 1=2C so I'm counting on someone else to show up! I'm ready to cover the wings=2C will probably have this done before the meeting. Otherwise the tail feathers are done=2C as well as the control system.. Carl and Ann Lekven ________________________________________________________________________________Subject: Pietenpol-List: Re: Well, I did it... Cut out that compression fracture