Pietenpol-List: Best way to cut metal fittings?

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Pietenpol-List: Best way to cut metal fittings?

Post by matronics »

Original Posted By: Jim Markle
m>I was going to buy my metal parts ready made but have been thinking about doing it all myself. I have done a little bit of metal work in my time and get by with a hacksaw and grinder usually. Is there a trick that makes cutting these parts any easier? Do you use a band saw for metal or do I tough it out with a hacksaw? Im using 4130.I know laser cutting is an option but just doing my sums as buying them ready made adds a chunk to the build cost. I have a mate who can Tig weld etc.Scotty--------ScottyTamworth, AustraliaBuilding a Corvair Powered Pietenpol Air Camperwww.scottyspietenpol.comRudder, Vert stab, Elevators and 30 Ribs built...Read this topic online here:http://forums.matronics.com/viewtopic.p ... 7#345557le, List Admin.________________________________________________________________________________Date: Sat, 9 Jul 2011 09:33:36 -0600 (GMT-06:00)
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Pietenpol-List: Best way to cut metal fittings?

Post by matronics »

Original Posted By: "Jack Phillips"
I was going to buy my metal parts ready made but have been thinking about doingit all myself. I have done a little bit of metal work in my time and get by witha hacksaw and grinder usually. Is there a trick that makes cutting these parts any easier? Do you use a band sawfor metal or do I tough it out with a hacksaw? Im using 4130.I know laser cutting is an option but just doing my sums as buying them ready madeadds a chunk to the build cost. I have a mate who can Tig weld etc.Scotty--------ScottyTamworth, AustraliaBuilding a Corvair Powered Pietenpol Air Camperwww.scottyspietenpol.comRudder, Vert stab, Elevators and 30 Ribs built...Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________
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RE: Pietenpol-List: propeller

Post by matronics »

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Looks nice, Jeff. Just using the blank you've cut as is should give aboutthe same performance as a certificated Sensenich.Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia-----Original Message-----
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RE: Pietenpol-List: Best way to cut metal fittings?

Post by matronics »

Original Posted By: owner-pietenpol-list-server(at)matronics.com
I found a small metal cutting bandsaw and a belt sander with a sanding discto be very useful in making all the fittings. The bandsaw needs to be SLOW.4130 should be cut with a saw speed of only 80 feet per minute, or a littleover 1 inch per second. Anything faster and the work will remove morematerial from the sawblade than the saw will from the work. Grizzly Toolssells a nice pipe-cutting bandsaw that can be stood up to make a smallvertical saw for about $200. I don't know if they have something equivalentin Australia, but if they do it is a worthwhile investment. Get the finestteeth blade you can find - I think I used a 32 teeth per inch blade. I usedit for all the steel fittings as well as cutting all the tubing (and thereis a lot of that on a Pietenpol).Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia-----Original Message-----
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RE: Pietenpol-List: Best way to cut metal fittings?

Post by matronics »

Original Posted By: airlion
Scotty:Many of the metal fittings need to be made to fit the structure of theplane you are working on..its not one size fits all. As far as cutting theparts out, a hacksaw will work, but it takes a lot of time and effort. WhatI did is to use my wood cutting bandsaw. I replaced the blade with a metalcutting one and then replaced the sheaves on the drive motor and thebandsaw so the blade is running at the proper slow speed for cutting steel.It worked great.Rick Schreiber________________________________________________________________________________Date: Sat, 9 Jul 2011 06:08:44 -0700 (PDT)
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RE: Pietenpol-List: Best way to cut metal fittings?

Post by matronics »

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Scotty,The only band saw I have is my dad's old Craftsman. I takes an 80" blade,which can be purchased as metal or wood blades. I have never messed aroundwith the speed and have completed all fittings and wood work, though I didbreak 3 metal blades in the process.Best of luck!Gary-----Original Message-----
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Re: Pietenpol-List: Lucky Stiffs

Post by matronics »

Original Posted By: Lawrence Williams
Larry, you surely don't want to see my project. It will NOT have big wire wheels, it has a modified airfoil, it will have a wing (center section) cutout, It will be powered by a Corvair "crank-snapper",and it will not be covered with cotton cloth tightened with dope. Look at a picture of Hans van der Voort's Miss (whatever -- I have forgotten her name) and, except for color, you will, I hope, pretty much see mine when it is finished. Chuck C. ----- Original Message -----
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Re: Pietenpol-List: Best way to cut metal fittings?

Post by matronics »

Original Posted By: "Richard Schreiber"
"sheaves on the drive motor and thebandsaw so the blade is running at the proper slow speed for cutting steel" What are sheaves? I have borrowed my son-in-law's wood cutting bandsaw, but it runs too fast for steel. How can I modify it without ruining it?----- Original Message -----
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RE: Pietenpol-List: Best way to cut metal fittings?

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Original Posted By: norm
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Re: Pietenpol-List: propeller

Post by matronics »

Original Posted By: bender
Yes, handling that huge block through the bandsaw was very difficult. Next time (when I make my 4-bladed job) I'll hack off most of it by some other means before shaving off the last of it with the bandsaw. I loved working with that ash,- very good prop wood I think. Can't wait to see it Jeff. Please bring fotos to Brod if you can.Dan HelsperPuryear, TN.-----Original Message-----
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Re: Pietenpol-List: Best way to cut metal fittings?

Post by matronics »

Original Posted By:> Charles Campbell
Sheaves are sometimes called pulleys (incorrectly). Use the smallest oneyou can get on the drive motor and the largest one, that will fit, on thebandsaw. Rick Schreiber.> [Original Message]
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Re: Pietenpol-List: Best way to cut metal fittings?

Post by matronics »

Original Posted By: Rick Holland
Subject: Re: Pietenpol-List: Best way to cut metal fittings?
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Re: Pietenpol-List: Best way to cut metal fittings?

Post by matronics »

Original Posted By: "bubbleboy"
Metal cutting tools to make your life easier:1. Portable, variable speed bandsaw2. 4 1/2" angle grinder with .040 cutoff disks3. 6 X 48 belt sander4. Hacksaw5. Good selection of files6. 8" bench grinder7. Scotchbrite wheel for the grinder for polishing metal edges PRIOR to bendingGreg Cardinal----- Original Message -----
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Pietenpol-List: Re: Best way to cut metal fittings?

Post by matronics »

Original Posted By: "dwilson"
http://cgi.ebay.com/ebaymotors/ws/eBayI ... OTORS:1123 JackDSM________________________________________________________________________________Subject: Pietenpol-List: Re: Best way to cut metal fittings?
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Post by matronics »

Original Posted By: Owen Davies
I have the Delta metal band saw, but I want to show you what cuts a lot of metalin my shop. After using this shear you will wonder how you ever got by withoutone. This is from Woodward FAB, they are made in China but the blade stayssharp and I have no problem shearing .090. The handle is 24 inches long. Youcan even buy the demo unit at Oshkosh after the big show and save some money.I like this tool !DanRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/meta ... ______Date: Sat, 09 Jul 2011 21:51:09 -0400
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Pietenpol-List: Re: Best way to cut metal fittings?

Post by matronics »

Original Posted By: "bubbleboy"
Hi Chuck, We've got a 3-D printer at work and it is bloody awesome! It's used as a prototypingtool to make sure that form, fit and aestheticss all look okay. I've hadlots of thoughts about what we could do with it as well. It's basically a printerthat blows dust and glue together. Afterwards with coat the assembly andpaint it for durability. Pretty tough material when you are done with it.Lorin--------Lorin MillerWaiex N81YXGN-1 N30PPRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Best way to cut metal fittings?
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RE: Pietenpol-List: Another question about the pilot's seat

Post by matronics »

Original Posted By: owner-pietenpol-list-server(at)matronics.com
No. Mine is removable and in 5 years of flying I've never removed it. Nowthe front seat is another matter. I remove it at every annual inspection,to access the rudder bar and the brake master cylinders.Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia-----Original Message-----
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RE: RE: Pietenpol-List: Another question about the pilot's seat

Post by matronics »

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Jack,Glad you mentioned that. I was planning to glue my front seat bottom. Didyou secure yours with screws?Thanks,JackDSM-----Original Message-----
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RE: RE: Pietenpol-List: Another question about the pilot's seat

Post by matronics »

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Yes. I have wood screws on 2" centers down each side of the seat bottom.That too is overkill. Next time I'd use nutplates (wood screws don't workwell when frequently removed) and only use 4 of them.Jack PhillipsNX899JP "Icarus Plummet"Smith Mountain Lake, Virginia-----Original Message-----
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Pietenpol-List: Another question about the pilot's seat

Post by matronics »

Original Posted By: norm
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Re: Pietenpol-List: Re: Best way to cut metal fittings?

Post by matronics »

Original Posted By: Rick Holland
Subject: Re: Pietenpol-List: Re: Best way to cut metal fittings?
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Pietenpol-List: Re: Another question about the pilot's seat

Post by matronics »

Original Posted By: "Bill Church"
Thanks to all for the responses.While it may be nice to have access, if it isn't really necessary, I don't wantto bother with it.And Jack's reply that, in five years of flying, he has never had occasion to removehis seat, summed it up for me.I'll need to have an ELT as well, but I guess I just won't put under the seat.I'm experimenting with adding a bit of curvature to the pilot's seat (for comfort,inspired by the Adirondack chair), and making a removable curved seat is notso simple. As I say. I'm still experimenting, so this idea might not pan out.But if it does work, keeping it as simple as possible is the best way to go.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Another question about the pilot's seat
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Pietenpol-List: Re: Another question about the pilot's seat

Post by matronics »

Original Posted By: "Bill Church"
Dan,One big regret of mine, in not being able to attend Brodhead last summer, was thatI didn't get to see your beautiful Air Camper in person. Having seen photosof the construction process over that years, I was really looking forward toseeing the finished product. So, I'm quite relieved to hear that you will bebringing it back this year. I'll be sure to check out your belly access panel(among many other details) in a couple of weeks.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Another question about the pilot's seat
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Re: Pietenpol-List: Re: Another question about the pilot's seat

Post by matronics »

Original Posted By: helspersew(at)aol.com
Gary,THAT is a great shot of the curved seat. :)>From the little bit that's exposed in the photo, the top part looks like whatI have in mind. They say that great minds think alike, so Robert must be quitea whiz. :)Actually, this is an idea I've had for several years, since I built a couple ofAdirondack chairs. They are absolutely the most comfortable outdoor chairs (withoutcushions) that I've ever sat in. I thought about duplicating the constructionmethod (using wooden slats), but decided that it would just be too heavy,so I'm trying to duplicate the shape in plywood.I'll see if my idea works, and if not, I may pick Robert's brain. Thanks for thecontact info.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Re: Another question about the pilot's seat
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Post by matronics »

Original Posted By: Bill Church
Bill,Thank you for the kind words. I too am really looking forward to Brodhead this year. It will be a special year, attending the first annual Friday Lunch Bunch at the Textor camper, getting to meet all the Piet-list guys in person. Meeting face to face always makes a big difference.Dan HelsperPuryear, TN-----Original Message-----
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Pietenpol-List: Re: propeller

Post by matronics »

Original Posted By: "bender"
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________________________________________________________________________________Subject: Pietenpol-List: Re: propeller
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Post by matronics »

Original Posted By: "Amsafetyc(at)gmail.com"
took the plunge today.. a buddy came over in the afternoon to help..he's the shorthair guy.. he did pretty good work..its strange to wield a chain saw at what needs to be a prop but it works..kinda fun... its balanced really well so far.. i feel like its a little thick onthe ends but they both match.. maybe some more thinning before final sandingjeffRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/carv ... __________
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Re: Pietenpol-List: Another question about the pilot's seat

Post by matronics »

Original Posted By: Bill Church
Subject: Re: Pietenpol-List: Another question about the pilot's seatI hugged the seat bottom, it gives an easy inspestion access and additional storage possibly. A piece of piano hinge some wood screws and bingo bango bongaroo and its done just like FM.JohnSent via DROID on Verizon Wireless-----Original message-----
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Pietenpol-List: Re: Best way to cut metal fittings?

Post by matronics »

Original Posted By: "olflyr45"
well i know a little about it......My Dad (Lynn Rusch) built a Mercedes Benz Dieselpowered Piet back it 1975-76 for Doug Rhode, i was only 8 years old at thetime but i do remember it pretty good. Doug was the pilot at the time and itnever had enough power to keep it in the air and on the maiden flight it nosedover coming down.......not real bad, but enough to say that engine wasnt goingto work. I believe it ended up with a continental engine and traveled allaround the country with a few different owners. The last i heard the plane issitting in a storage shed 10 miles away from where it was built KMTW....i justhappen to be finishing the sister plane that my dad was building for himselfat the same time. I have a few newspaper clippings of the diesel powered piet,it was a big deal at the time. I remember my dad telling me they went to visitBernard and discussed the engine installation/choice face to face....Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Best way to cut metal fittings?
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Post by matronics »

Original Posted By: Lawrence Williams
Ideally you would want to have 3 teeth of the saw blade in the metal during thecut. If you are cutting .060 sheet for instance the blade should have .020 betweenthe teeth or 50 teeth per inch. This will prevent hanging and tearingthe teeth off the blade. Of course with very thin stock you just can't get bladesfine enough so get the finest pitch you can and feed the stock slowly. In doing the layout you need to make sure that the grain of the metal is inline with the stress that is going to be in the finished fitting to get maximumstrength. If you look closely at the raw metal you can see a grain in itsimilar to what you see in a piece of wood.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 12 Jul 2011 05:42:09 -0700 (PDT)
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> Re: Pietenpol-List: Best way to cut metal fittings?

Post by matronics »

Original Posted By:> "Richard Schreiber"
> Subject: Re: Pietenpol-List: Best way to cut metal fittings?>Shea>> "sheaves on the drive motor and the> bandsaw so the blade is running at the proper slow speed for cuttingsteel">> What are sheaves? I have borrowed my son-in-law's wood cutting bandsaw, > but it runs too fast for steel. How can I modify it without ruining it?>> ----- Original Message -----
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