Original Posted By: helspersew(at)aol.com
Tom,Discipline yourself to work at least 15 minutes a night(or morning) on some smallpart of the ship. You will be amazed at what gets done in a years time. I foundthat by just getting started each day, I would continue far past the 10 minuteminimum.--------PAPA MIKERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Need help- Subject: Engine- turning jigDate: Sat, 17 Oct 2009 09:53:40 -0400
Pietenpol-List: Need help- Engine- turning jig
RE: Pietenpol-List: Need help- Engine- turning jig
Original Posted By: "Jack Phillips"
Dan:Here is how I did my instrument panel. I used a 1" hole saw core from a 3/4" thickpiece of pine for the mandrel. I glued in a hardwood dowel for the shaft.To the bottom of the mandrel, I then glued on a thin scotch brite pad. I chuckedthe mandrel into a drill press and applied light pressure for 2 seconds. Iused a 50/50 mix of oil and kerosene for a lube. The attached photo shows the jig set up. I attached the aluminum I was turning,to a 3/8" thick piece of plywood. I made sure that the left edge and the bottomof the plywood that the aluminum was attached to was square, as I used thesefor the guide edges. I next laid out a grid pattern on paper and glued it toanother sheet of plywood. You have to decide what the pattern is you are goingto make to then determine the grid size (also the mandrel size). I think minemay have been 1/2". Next drill a series of locating pin holes on the left andright sides, along a left vertical and right vertical. These will be used tolocate the horizontal edge guide. Next prepare the horizontal edge guide outof a 1 x 4 board. The guide needs one edge flat and two locating pin holes drilled.The rest is pretty self explanatory from the photo. I started at the upper left,indexing the horizontal edge with the board and aligning the left edge of thealuminum mounting board along one of the vertical lines. The only issue withdoing a cowling is that you may have to move things around a bit to get clearancewith the drill press.Rick SchreiberValparaiso, IN________________________________________________________________________________
Dan:Here is how I did my instrument panel. I used a 1" hole saw core from a 3/4" thickpiece of pine for the mandrel. I glued in a hardwood dowel for the shaft.To the bottom of the mandrel, I then glued on a thin scotch brite pad. I chuckedthe mandrel into a drill press and applied light pressure for 2 seconds. Iused a 50/50 mix of oil and kerosene for a lube. The attached photo shows the jig set up. I attached the aluminum I was turning,to a 3/8" thick piece of plywood. I made sure that the left edge and the bottomof the plywood that the aluminum was attached to was square, as I used thesefor the guide edges. I next laid out a grid pattern on paper and glued it toanother sheet of plywood. You have to decide what the pattern is you are goingto make to then determine the grid size (also the mandrel size). I think minemay have been 1/2". Next drill a series of locating pin holes on the left andright sides, along a left vertical and right vertical. These will be used tolocate the horizontal edge guide. Next prepare the horizontal edge guide outof a 1 x 4 board. The guide needs one edge flat and two locating pin holes drilled.The rest is pretty self explanatory from the photo. I started at the upper left,indexing the horizontal edge with the board and aligning the left edge of thealuminum mounting board along one of the vertical lines. The only issue withdoing a cowling is that you may have to move things around a bit to get clearancewith the drill press.Rick SchreiberValparaiso, IN________________________________________________________________________________
RE: Pietenpol-List: Need help- Engine- turning jig
Original Posted By: owner-pietenpol-list-server(at)matronics.com
I did mine very similar to how Rick did it, except I was lazy and just usedan old Continental exhaust valve with scotchbrite glued onto it for thetool.Jack PhillipsNX899JPRaleigh, NC _____
I did mine very similar to how Rick did it, except I was lazy and just usedan old Continental exhaust valve with scotchbrite glued onto it for thetool.Jack PhillipsNX899JPRaleigh, NC _____
Re: Pietenpol-List: Need help- Engine- turning jig
Original Posted By: helspersew(at)aol.com
At the time I did mine I was trying to get an exhaust valve to use for the mandrel.I may have even gotten the idea from you Jack. I just didn't have one. Iwas looking around my shop trying to decide what I was going to use, when I sawthis old scrap hole saw core sitting on the bench. Then the light bulb wenton!Rick S________________________________________________________________________________Subject: Re: Pietenpol-List: Need help- Subject: Engine- turning jigDate: Sat, 17 Oct 2009 18:56:24 -0400
At the time I did mine I was trying to get an exhaust valve to use for the mandrel.I may have even gotten the idea from you Jack. I just didn't have one. Iwas looking around my shop trying to decide what I was going to use, when I sawthis old scrap hole saw core sitting on the bench. Then the light bulb wenton!Rick S________________________________________________________________________________Subject: Re: Pietenpol-List: Need help- Subject: Engine- turning jigDate: Sat, 17 Oct 2009 18:56:24 -0400
Re: Pietenpol-List: Need help- Engine- turning jig
Original Posted By: "Jack Phillips"
Wow Dan!!!Its really looking good. You could probably make up a fixture out of wood for a 1/4" portable drill stand,but once the cowling is bent , that makes things a little more difficult. Rick SchreiberValparaiso, IN________________________________________________________________________________
Wow Dan!!!Its really looking good. You could probably make up a fixture out of wood for a 1/4" portable drill stand,but once the cowling is bent , that makes things a little more difficult. Rick SchreiberValparaiso, IN________________________________________________________________________________
RE: Pietenpol-List: Need help- Engine- turning jig
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Man! What a beautiful airplane! Unless you want to drill out all those rivets and work with flat pieces, Iwouldn't touch it Dan. Too much chance of screwing it up.The scotchbrite pad on the hole drill core or exhaust valve has a bit of"give" in it and can work with a gentle curve. The hard part will bemaintaining a uniform pattern over the whole cowling. It is far easier toengine turn the material first, then work with it to form the cowling. Thatway, you can ensure that the rows of swirls all line up properlyExperiment first on some scrap material and see how well you can cover up ascrewup with fresh swirl marks - it might work ok. Otherwise, get it flyingwith this cowling and make another cowl with the engine turning on it.Nice work, Dan.Jack PhillipsNX899JPRaleigh, NC _____
Man! What a beautiful airplane! Unless you want to drill out all those rivets and work with flat pieces, Iwouldn't touch it Dan. Too much chance of screwing it up.The scotchbrite pad on the hole drill core or exhaust valve has a bit of"give" in it and can work with a gentle curve. The hard part will bemaintaining a uniform pattern over the whole cowling. It is far easier toengine turn the material first, then work with it to form the cowling. Thatway, you can ensure that the rows of swirls all line up properlyExperiment first on some scrap material and see how well you can cover up ascrewup with fresh swirl marks - it might work ok. Otherwise, get it flyingwith this cowling and make another cowl with the engine turning on it.Nice work, Dan.Jack PhillipsNX899JPRaleigh, NC _____
RE: Pietenpol-List: Need help- Engine- turning jig
Original Posted By: owner-pietenpol-list-server(at)matronics.com
BTW, I wouldn't try flying it with that prop. _____
BTW, I wouldn't try flying it with that prop. _____
Re: Pietenpol-List: Need help- Engine- turning jig
Original Posted By: outofthebox50(at)yahoo.com
I started covering my Piet in a September with the thought that I'd be flying beforeWinter set in. Ha! I finally trailered it to the airport the followingNovember! It took me over a year too Mike. And I was consistently working onit. Not every day but at least a couple of days a week. It took much longerthan I ever would have imagined! I can't imagine the big biplane guys. Orhow about the Staggerwing guys with the closely spaced rib stitching (becauseof the high VNE). That would be like rib stitching eight Pietenpol wing panels!Wow! I'm currently restoring an Aeronca Chief along with my dad. We arefinally at the exciting covering stage. Although they stick up and are ugly,the PK screws are amazing compared to rib stitching!! No cut fingers and youcan do an entire wing panel in the time it takes to rib stitch like, one rib!Still you can't beat rib stitching, it really is the way wings were meant tobe covered, right?Tri-Champ. Come on, now. What was Aeronca thinking!?Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Need help- Subject: Engine- turning jig
I started covering my Piet in a September with the thought that I'd be flying beforeWinter set in. Ha! I finally trailered it to the airport the followingNovember! It took me over a year too Mike. And I was consistently working onit. Not every day but at least a couple of days a week. It took much longerthan I ever would have imagined! I can't imagine the big biplane guys. Orhow about the Staggerwing guys with the closely spaced rib stitching (becauseof the high VNE). That would be like rib stitching eight Pietenpol wing panels!Wow! I'm currently restoring an Aeronca Chief along with my dad. We arefinally at the exciting covering stage. Although they stick up and are ugly,the PK screws are amazing compared to rib stitching!! No cut fingers and youcan do an entire wing panel in the time it takes to rib stitch like, one rib!Still you can't beat rib stitching, it really is the way wings were meant tobe covered, right?Tri-Champ. Come on, now. What was Aeronca thinking!?Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Need help- Subject: Engine- turning jig
Re: Pietenpol-List: Need help- Engine- turning jig
Original Posted By: amsafetyc(at)aol.com
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________________________________________________________________________________Subject: Re: Pietenpol-List: Need help- Subject: Engine- turning jig
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________________________________________________________________________________Subject: Re: Pietenpol-List: Need help- Subject: Engine- turning jig