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3DHS 75" EDGE 540 V2 Assembly Thread

Discussion in 'Giant / Scale ARF Build Threads' started by AKNick, Oct 11, 2018.

   
  1. Snoopy1

    Snoopy1 640cc Uber Pimp

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    I just looked up the motor you were using from what I can see it is very close the XPWR that is installed in the Timber. The only difference is my batteries are mAh 400o. Just trying to see how good my setup will be. The motor you picked is one of the best, we’re you pleased with the power, on your plane.
     
  2. AKNick

    AKNick 150cc

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    At the time the XPWR 30cc was out of stock and they were going through a design flaw of the X mount breaking. This is now resolved. Based on Tim's recommendation I used the Motrolfly 4330-216kv I chose the Castle 80HV. It never peaked over 70A in the air with a 20x8. I think I should have tried a 19x8 prop. But the plane was never sluggish, just not as ballistic as a 60" plane. The motor was built well.
     
    Snoopy1 likes this.
  3. AKNick

    AKNick 150cc

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    Been slowly tinkering away. Work, sleep, and baby are slowing productivity.

    Redesigned another air dump. Forgot to get a better picture.
    The smaller one I made a last week was painted white and put in the back.
    0D459D7E-F1DC-47AF-93AB-54BA02940DF5.jpeg 3E2A15F2-65D1-43C0-ABB8-12CA2DCB45AE.jpeg

    Made a place to mount the ignition module.

    F977B407-6EA5-4931-87A5-6E3D9A9C42F8.jpeg

    Designed up an ignition wire holder. Took a few redesigns but it works now!

    2170C534-982A-4687-B76B-19E3143FFF2F.jpeg 6F1F80BA-4C59-402E-8216-9CC3B9DFE570.jpeg C043F51E-9999-41D6-9EDF-266BAB591E18.jpeg 511B0B72-DE9D-42E7-883A-3080877E0D0D.jpeg

    Thinned some epoxy and coated the entire firewall/LG tunnel area.

    Created a choke holder with some G10 carbon board and a rubber grommet.

    3A95F70F-D600-4FEC-AA56-617E0A71A7B7.jpeg B89FEE2D-78FA-467C-AE26-C43712144692.jpeg

    I’m getting there!!!
     
  4. AKNick

    AKNick 150cc

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    Got a lot of work done today.

    Baffles:

    Craft foam galore. Blocked the inlet ears except access to the choke rod.
    Filled the gaps leading up to and mostly around the cylinder.
    F0D7042B-9017-4A48-9E47-0AA3035727EF.jpeg 1D2B5F94-A7A7-4EF5-82E5-A8E6F9F3C941.jpeg 14D3F2BE-F485-4270-92DE-63CBA49B4B2F.jpeg FA3D6549-1607-459C-B16F-FE6B27BC0ADF.jpeg 6950AA9D-C537-4B19-8A49-76AB48E39B07.jpeg 8EFFCE15-E262-4C8B-B171-1969AC4793B8.jpeg

    Put the muffler on with nordlock washers and copper RTV on the threads and mating surfaces.

    E8AA542C-64D1-49C6-956B-2A9FA91B1436.jpeg BE45FB53-9D91-4127-B60C-CF60DC352CF2.jpeg 97236D4E-F6F7-4482-8448-F949EB06F7B9.jpeg 256360DC-5EC7-4E21-B48D-E1F869A21C6D.jpeg 2C358ADD-B8F6-44FC-9AB0-BDB220965564.jpeg
    13339A23-F32C-4134-8AC5-BA2E21387870.jpeg

    Took a rough CG to figure out where it is with the DA35. Nose heavy. Dangit.

    I decided to relocate the rudder servo to the tail. Had to fabricate my own place to put it. Really ate up a lot of my time today. It’s basically done now. Just need to modify a few things.

    B1032BC4-E763-4658-B8C1-DB4511651B04.jpeg D7F07D02-CAA7-4F2E-8DF7-F526D0B02665.jpeg 3FE78B93-F4E3-4C36-9C0B-17B17B9F1624.jpeg E9C4359F-6B58-467D-BC75-AFE45F1CF124.jpeg F014F12A-180B-4532-A67E-D216F166CB8B.jpeg

    With the servo in the tail and and one Oz of weight in the tail, without fuel, and one battery in place, it’s balanced near the wingtube.
    So I’ll probably leave it like it is and fly it.
     
  5. AKNick

    AKNick 150cc

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    So moving the rudder servo to the tail was waaaaayyyyy too much work. But it’s done.
    Basically took a 2” arm to use the next hole above 1.5”, but the 2” arm is too long so I hacked it to size.
    Great you say... well turned out the ball link hits the elevator. Oooooffff so I installed a custom balsa block and made a little valley in it to allow the ball link to fit.
    Great you say, Nick your about done... nope. I needed to make a control rod relief in the elevator.
    Phew!!! So it’s all done finally. What a feat.
    Oh and I don’t have charcoal or orange covering. Daaaaaannngg
    3878D7F4-0FEE-48AF-A00A-83F15594DE8D.jpeg CAC40401-5751-416A-A24A-373255775DCA.jpeg 5D9378CD-ABCC-42F9-BD54-F1847E5514F0.jpeg FA270F34-0AFA-43E0-969C-188479F69945.jpeg 08984EA5-CF57-4F05-ACEB-12C1894230A2.jpeg C8BFAB2E-6C2E-4329-A924-2A9987D1D760.jpeg 80C1E7E5-C914-4B96-8615-0CAFCC4EA788.jpeg FC9B4D37-3716-4005-9ACD-418A617626C6.jpeg F0B0E04C-D32A-4A45-AF6A-BAFB45F2C92F.jpeg B6EEB651-AC8C-48F4-8A07-D7F828489EE7.jpeg 347A4FEF-4A31-4759-A03B-009F9775E0C0.jpeg 177FA6E9-1145-4B42-8279-ECDFBBDE113C.jpeg
     
    -Rick- likes this.
  6. AKNick

    AKNick 150cc

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    Here are some final setup pics. Conversion from electric to gasoline is now complete!

    CG Check with one battery and no gas is the aft side of the wing tube.
    So even with all that work the plane is more nose heavy with the gas engine still.

    Time for a tune and a flight!!

    8DA3B562-CDAA-4E73-AEB0-86D968ADE8AF.jpeg 8708BA28-256B-462D-B925-936F577D545E.jpeg 6C33FF90-16A0-4CF1-9608-0DAF0486C411.jpeg 28AD533E-2DC2-4E43-A669-515ACDD7C63C.jpeg 55611743-E314-471D-88A6-9628D271A50D.jpeg A3A046FF-9795-4A76-BE88-0E3F1CFCCB1E.jpeg C172E037-7B58-43B8-B75E-1B1684219838.jpeg
     
  7. Ugh. Nothings ever easy. One thing always leads to another. :ugh!:
     
    Ken., AKNick and -Rick- like this.
  8. AKNick

    AKNick 150cc

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    pawnshopmike likes this.
  9. AKNick

    AKNick 150cc

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    Got a couple flights in! Had some tubing issues but resolved with going back to basics and retune.
    One click of aileron. One click of up elevator.
    I’ll need to recheck my trims to see where they were before
    45 inverted was pretty neutral with the nose leveling off a tiny bit.
    Tail doesn’t drop when coming in for a landing.
    Love how this plane looks in the air.
    Pop tops, crankshafts, and KE walls are a breeze. Very nimble airframe. Doesn’t track very smoothly, so I’ll ha e to play with rates and some mixing. Top wing goes to the belly and a toy bit of coupling to the gear.
    Overall pleased. Will need to get more time on the plane to compare how the electrons were.
    A507110D-9D2A-4276-82F5-FE8C137E9AFE.jpeg 67BE3AC3-5133-404D-A1EF-C04784493E3C.jpeg
     
  10. AKNick

    AKNick 150cc

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    Took the edge up for a couple more flights on the DA35. Love the power, love the flight times.

    Removed the wheels and wheel pants, installed some 3.5” FlyWheelz. Had to make a little bushing to fit inside the wheel bushing to accommodate the stock gear. Added a little Velcro fiber washer to keep the friction constant.
    2D8DFD37-6505-4A3D-BF42-D9252B41DC4F.jpeg 95721830-578D-4F80-9573-7804BC900BC4.jpeg
    The black bushing was actually the other way around in the end.
    5AF90F61-89DF-4065-BBF5-4B94594B07A8.jpeg 63CA2285-FE63-4637-BEC1-5B57F06B035B.jpeg A7252829-259B-4F41-949E-7C525A6C1017.jpeg
    Got to the field and we’ll shoot, my choke linkage grub screw vibrated out. So removed the linkage completely. Was able to manually close and open the valve through the interior/firewall.
    1A229A37-EB4A-4B76-8888-3FFEF58715D5.jpeg
    Man... this plane is responsive, crazy roll rate, crazy everything. Love me a hyper plane. Has some intense coupling to thegear in a KE and the top/rh wing rotates more than the top/LH wing. Was getting this dialed in when... Crack!! What the???
    A black bear was about 200ft from me with a cub chowing down on some greens. So I landed quickly and stayed alert. She walked towards me once but never within 150ft. She didn’t seem to mind me at all. #alaskaproblems
    B7A09E83-030E-47FE-978A-4AD7A6F20FBA.jpeg 8A901A16-E9EC-420C-B7C3-0AC8CE9EE70A.jpeg
    She was off to my direct left.

    Needless to say, I broke my tailwheel AGAIN. Time for a better solution. Thinking of using a Sullivan tailwheel bracket.
     
    Snoopy1, pawnshopmike and -Rick- like this.
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