sandbagger Posted April 3, 2019 Share Posted April 3, 2019 (edited) Hi all, The first of the Fokker D.VII pair is completed. So now I'm starting the second of the models, the 'skeletal' model. This will be a full view model with 3D printed parts from 'Shapeways'. The donor engine is from the 'Wingnut Wings' Fokker D.VII (OAW) built with the following replacement 3D printed components: Created by Bob Monroe ('Flugzeugwerke') and available from ‘Shapeways’. Mercedes D.III Oil Pump, Mercedes D.IIIa Cylinders (hollow), Mercedes D.IIIa Crankcase, German Aircraft Magneto, Mercedes Cylinder clamps, Gun synchro mechanism, The aircraft structure will be the 3D printed Fokker D.VII structure. Created by Richard Andrews ('Aviattic') and available from ‘Shapeways’. Shapeways There will be other after market parts used. I thought I'd start with the engine, which had to modify slightly as the internal mountings in the 3D sump and block are too small to accept the kit supplied propeller shaft. Instead I've made one from brass micro-tube to fit not only the 3D engine but also the 'Proper Plane' Heine propeller. Mike Edited April 8, 2019 by sandbagger coogrfan, Model_Monkey, Tnarg and 4 others 7 Link to comment Share on other sites More sharing options...
sandbagger Posted April 4, 2019 Author Share Posted April 4, 2019 Hi all, A few more engine bits prepared. Spark plugs made from micro-tube and 'RB Motion' aluminium nuts. 'Taurus' manifold locking rings - cut and sanded to fit the 3D printed engine, Mike Greg W, scvrobeson, Model_Monkey and 3 others 6 Link to comment Share on other sites More sharing options...
monthebiff Posted April 4, 2019 Share Posted April 4, 2019 Very, very interesting build, super impressed with what you are doing with the engine. Regards. Andy Link to comment Share on other sites More sharing options...
sandbagger Posted April 5, 2019 Author Share Posted April 5, 2019 (edited) Hi all, A couple of magnetos each made of four separate 3D printed parts. The ignition leads support tube made from micro-tube. The magneto drive modified to fit the 3D engine with a brass rod for the magneto drives. Also the cylinders are mounted onto the engine block, Mike Edited April 6, 2019 by sandbagger scvrobeson, MikeMaben, LSP_Kevin and 4 others 7 Link to comment Share on other sites More sharing options...
LSP_Ray Posted April 6, 2019 Share Posted April 6, 2019 Wow! Nice work! Link to comment Share on other sites More sharing options...
sandbagger Posted April 6, 2019 Author Share Posted April 6, 2019 Hi all, Starting to assemble the engine accessories now. So far the spark plugs, ignition lead support tubes, camshaft, air pump, coolant drain tap and cylinder base bridging clamps. Still plenty more to do, Mike Fvdm, Tnarg, MikeMaben and 6 others 9 Link to comment Share on other sites More sharing options...
Fvdm Posted April 7, 2019 Share Posted April 7, 2019 (edited) Looking good! Does all the shapeway components fit nicely? Edited April 8, 2019 by Fvdm Link to comment Share on other sites More sharing options...
Greif8 Posted April 7, 2019 Share Posted April 7, 2019 Excellent work thus far. Very impressive super detailing. Ernest Link to comment Share on other sites More sharing options...
sandbagger Posted April 7, 2019 Author Share Posted April 7, 2019 (edited) Hi all, Yes the 3D printed parts are close tolerance and fit well, although there are no location pegs/holes as you'd get on standard kit parts. However the parts can be printed hollow and include parts the original kit has as separate pieces. You can still see the 'layer lines' created by the vertical printing process, but even at this 1:32 scale, you have to look specifically to notice them. The engine has progressed a bit more now with the addition: The conical valve springs Crankcase breather pipe Magneto drive assembly with two 3D printed magnetos Two air pump to crankcase pipes Decompression valve. Still have to add ignition leads, intake manifold with locking rings, water pump, coolant pipes, oil filler pipes, sump oil sight glass. There's also a couple of other pipes plus engine controls. Mike Edited April 7, 2019 by sandbagger Tnarg, Fvdm, Greg W and 2 others 5 Link to comment Share on other sites More sharing options...
sandbagger Posted April 8, 2019 Author Share Posted April 8, 2019 Hi all, The 3D printed parts are detailed but as can be seen from the shot below, some are very small. This is a pair of machine gun synchronization mechanisms, each made up of four separate parts. The biggest problem is separating them from the base block without damaging them!! Mike Model_Monkey, Shawn M and Greg W 3 Link to comment Share on other sites More sharing options...
sandbagger Posted April 10, 2019 Author Share Posted April 10, 2019 Hi all, The end is in sight for this engine build. I've added the decals, ignition leads, gun synchronization mechanism, oil sight glass, generator and drive, cylinder fuel primers, water pump, intake manifold with locking rings, crankcase breather pipe and additional pipes. All that's left is to add the engine mounted throttle and spark advance (ignition timing) controls - the remainder of the control runs can't be added until the engine is fitted into the fuselage (with the cockpit), Mike D.B. Andrus, LSP_Ray, bstachel and 7 others 10 Link to comment Share on other sites More sharing options...
LSP_Ray Posted April 11, 2019 Share Posted April 11, 2019 That looks very nice! Well done! Link to comment Share on other sites More sharing options...
sandbagger Posted April 12, 2019 Author Share Posted April 12, 2019 (edited) Hi all, I've added the control linkage to the top of the twin carburettors, which consist two levers, connecting rod and cable pulley. Also the connected levers on the top of the attached 'speed controllers;. I also created the frame mounted throttle bell-crank and the two cross bars on the forward fuselage frames, which are missing from the kit parts, Mike Edited April 13, 2019 by sandbagger bstachel, Model_Monkey, scvrobeson and 3 others 6 Link to comment Share on other sites More sharing options...
sandbagger Posted April 13, 2019 Author Share Posted April 13, 2019 Hi all, The final on-engine control linkage has been added, which is the spark advance (ignition timing) for bottom magnetos. For now the engine will be put to one side so I can make a start on the cockpit, Mike LSP_Kevin, scvrobeson, Model_Monkey and 1 other 4 Link to comment Share on other sites More sharing options...
sandbagger Posted April 13, 2019 Author Share Posted April 13, 2019 Hi all, The kit supplied fuselage side frames married to the 3D printed fuselage. This required cutting both, as both have a pilots seat frame and only one can be used of course. As the join between the two could be a weak area, I chose to fit them together using brass micro-tube. This gives more rigidity to the join of the fuselage and allows the fitting of the pilots seat frame from the kit (part A26), Mike LSP_Kevin, Model_Monkey, bstachel and 1 other 4 Link to comment Share on other sites More sharing options...
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