Original Posted By: Jeff Boatright
I've made the rib jig, and I realize that sanding softwood is not recommended,so do you start with the larger pieces and just keep trying, trimming to smallerpieces until you get it right? Has anyone had excellent results with sandingto fit? Glue arrived yesterday and gusset material arrived today. I'm thiscloseto starting, except I really need a board planer. Engine's getting clean.I'm finally on the move.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Thu, 29 Apr 2010 19:07:54 -0400
Pietenpol-List: construction and glue
Re: Pietenpol-List: Re: construction and glue
Original Posted By: Ameet Savant
Sanding does fill the pores with useless debrie thus blockingthe entry of glue or epoxy. The recommended method isscraping with a cabinet scraper. Using and sharpening theseis not that difficult. Once learned I guarantee you'll beusing the things for everything. The shhhhh... of the blade,the satisfying curl of infinitely thin shavings, THIS is whatwoodcrafting is all about!http://woodgears.ca/scraper/index.htmlh ... 7.aspThese are my alltime favourites. I use them every chanceI get;http://www.leevalley.com/US/wood/page.a ... ,310,41069>> The reference you may be looking for is 43-13 1b, Chap 1. It cautions > against sanding glue joints but I suspect that the caution is based on the > non-epoxy glue technologies that need a tighter fit. >> Dave________________________________________________________________________________Date: Fri, 30 Apr 2010 06:11:25 -0500Subject: Re: Pietenpol-List: Re: construction and glue
Sanding does fill the pores with useless debrie thus blockingthe entry of glue or epoxy. The recommended method isscraping with a cabinet scraper. Using and sharpening theseis not that difficult. Once learned I guarantee you'll beusing the things for everything. The shhhhh... of the blade,the satisfying curl of infinitely thin shavings, THIS is whatwoodcrafting is all about!http://woodgears.ca/scraper/index.htmlh ... 7.aspThese are my alltime favourites. I use them every chanceI get;http://www.leevalley.com/US/wood/page.a ... ,310,41069>> The reference you may be looking for is 43-13 1b, Chap 1. It cautions > against sanding glue joints but I suspect that the caution is based on the > non-epoxy glue technologies that need a tighter fit. >> Dave________________________________________________________________________________Date: Fri, 30 Apr 2010 06:11:25 -0500Subject: Re: Pietenpol-List: Re: construction and glue
Pietenpol-List: Re: construction and glue
Original Posted By: "Bill Church"
Yes, the wing was built with Weldwood resorcinol glue as the recorded logs showed.We tried to rebuild with new WRG but could never make it pass the FAA boiltest? We had approval to rebuild with T-88.A good read; http://rgl.faa.gov/REGULATORY_AND_GUIDA ... dfRemember: any glue formula is subject to change without customer notification.Just my experience.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: construction and glue
Yes, the wing was built with Weldwood resorcinol glue as the recorded logs showed.We tried to rebuild with new WRG but could never make it pass the FAA boiltest? We had approval to rebuild with T-88.A good read; http://rgl.faa.gov/REGULATORY_AND_GUIDA ... dfRemember: any glue formula is subject to change without customer notification.Just my experience.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: construction and glue
Re: Pietenpol-List: Re: construction and glue
Original Posted By: Rick Holland
Greg,When I built my ribs, I used a stationary disc sander to miter all the ends ofmy 1/4" x 1/2" rib bits. These are the ends that butt up against the top and bottomcapstrips, and although I did put a dab of glue on the ends, there is negligiblestrength in that glue joint (I did it to ensure that the ends were sealed).Don't trust a glued butt joint where your butt is on the line. As othershave said, it is the gusseted joint that really carries the load. As for thegussets, they are made of plywood, and sometimes the face of plywood can havea "glaze" that inhibits the absorption of glue into the wood fibers. It is consideredgood practice to lightly sand (with a coarser grade of sandpaper - maybe80 or 100 grit) the bonding face of plywood that is going to be glued, to"scuff' the surface and improve adhesion. Just use a vacuum cleaner to removethe fine wood dust before bonding, and you'll be fine. Now, here's the real "tip".Do the sanding of the plywood BEFORE you cut up all the tiny little gussets.That way you scuff up a larger area, which is MUCH easier to handle than severalhundred itty bitty rotten little stinking bits of plywood that are toosmall to hold on to. If you have one, you can use an electric palm sander to makethe job a little easier.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Fri, 30 Apr 2010 13:07:07 -0600Subject: Re: Pietenpol-List: Re: construction and glue
Greg,When I built my ribs, I used a stationary disc sander to miter all the ends ofmy 1/4" x 1/2" rib bits. These are the ends that butt up against the top and bottomcapstrips, and although I did put a dab of glue on the ends, there is negligiblestrength in that glue joint (I did it to ensure that the ends were sealed).Don't trust a glued butt joint where your butt is on the line. As othershave said, it is the gusseted joint that really carries the load. As for thegussets, they are made of plywood, and sometimes the face of plywood can havea "glaze" that inhibits the absorption of glue into the wood fibers. It is consideredgood practice to lightly sand (with a coarser grade of sandpaper - maybe80 or 100 grit) the bonding face of plywood that is going to be glued, to"scuff' the surface and improve adhesion. Just use a vacuum cleaner to removethe fine wood dust before bonding, and you'll be fine. Now, here's the real "tip".Do the sanding of the plywood BEFORE you cut up all the tiny little gussets.That way you scuff up a larger area, which is MUCH easier to handle than severalhundred itty bitty rotten little stinking bits of plywood that are toosmall to hold on to. If you have one, you can use an electric palm sander to makethe job a little easier.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Fri, 30 Apr 2010 13:07:07 -0600Subject: Re: Pietenpol-List: Re: construction and glue
Re: Pietenpol-List: First Passenger Ride today!
Original Posted By: helspersew(at)aol.com
Re: Pietenpol-List: construction and glue
Original Posted By: helspersew(at)aol.com
Re: Pietenpol-List: construction and glue
Original Posted By: Ryan Mueller
Subject: Re: Pietenpol-List: construction and glue
Subject: Re: Pietenpol-List: construction and glue
Re: Pietenpol-List: Re: construction and glue
Original Posted By: "Clif Dawson"
Both. They work well cleaning off old glue. If it's lumpy I would start carefullywith a file to get it close to the wood, and flat. Then finish off with a scraper.Clif> Cliff, I'm just getting ready to begin cutting gussets for my ribs then > glue. Are you using the shapers to prep the area prior to glueing or is > this tool used to clean and prepare the gusset area that HAD once been > glued? Greg Menoche DE________________________________________________________________________________
Both. They work well cleaning off old glue. If it's lumpy I would start carefullywith a file to get it close to the wood, and flat. Then finish off with a scraper.Clif> Cliff, I'm just getting ready to begin cutting gussets for my ribs then > glue. Are you using the shapers to prep the area prior to glueing or is > this tool used to clean and prepare the gusset area that HAD once been > glued? Greg Menoche DE________________________________________________________________________________
Re: Pietenpol-List: First Passenger Ride today!
Original Posted By: "Chris"
Oh no! does this mean I have to have a periscope too!Clif Just think about Charles Lindbergh. He had NO forward vision whatsoever. Dan Helsper________________________________________________________________________________
Oh no! does this mean I have to have a periscope too!Clif Just think about Charles Lindbergh. He had NO forward vision whatsoever. Dan Helsper________________________________________________________________________________
RE: Pietenpol-List: construction and glue
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Dan Asked"On a similar note, looking at the full size rib drawing, it calls for a1/2"x1/2" piece for the nose of the rib - the piece that the LE getsscrewed/glued to. Is it OK to use something like white pine for this pieceinstead of spruce or doug fir?Thanks,Dan"Dan,I simply stacked two pieces of the 1/4"x1/2" spruce to make the 1/2"x1/2".ChrisSacramento, CaWestcoastpiet.com-----Original Message-----
Dan Asked"On a similar note, looking at the full size rib drawing, it calls for a1/2"x1/2" piece for the nose of the rib - the piece that the LE getsscrewed/glued to. Is it OK to use something like white pine for this pieceinstead of spruce or doug fir?Thanks,Dan"Dan,I simply stacked two pieces of the 1/4"x1/2" spruce to make the 1/2"x1/2".ChrisSacramento, CaWestcoastpiet.com-----Original Message-----
Re: Pietenpol-List: construction and glue
Original Posted By: Rick Holland
Subject: Re: Pietenpol-List: construction and glue
Subject: Re: Pietenpol-List: construction and glue
Re: Pietenpol-List: construction and glue
Original Posted By: helspersew(at)aol.com