Roban - World Class Scale Helicopters

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  • I’m kind of new with the 3d printer , but , absolutely addictive as planes are . Lot to learn but i love anything coming out of mine ( Ender 3 pro).
    On the mig -29 looks good. I need to learn how to do the inside empty to reduce weight.
    often i wish to have the second one running at the same time, am i the only one ?
    Attached Files

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    • Thank you for the advice. I look into it next week.

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      • Printing up an Akira-class starship for a friend of mine. This is from the ST:TNG universe.

        Click image for larger version  Name:	DSCN5632.JPG Views:	19 Size:	91.3 KB ID:	299859
        Pat

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        • Very cool

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          • Freewing F-18C Nose Gear Door modification to the modification.
            Hey 3DP'ers, whoops that doesn't sound quite right, anywho, I have designed a different Nose Gear Door Actuator for the Freewing F-18C. Yes, I am still working on this project.

            I had used 2 servos which I modded to linear movement, one on each door and ran into difficulty with it functioning well with the radio versus a servo tester. There was too much play in that design, frankly, and was never 100% consistent without some servo hum. In my mind anytime I can eliminate a servo, it's for the good.

            The NG Doors are now mechanically operated via a cross-member and held open with compression spring tension. Compression to fully close the doors is less than 5 ounces of downward force.

            Myriad electron problems have been solved, though the cylinder design is in it's 2nd iteration and the cross-member took 3 shots to take the loads and not distort or bind.

            This works quite well and I saved just over an ounce of weight as a side benefit.

            Note: The Numbered Photo in sequence:

            1) These are the 'ball/socket' links to the NG door pivot. This was my first attempt at a 'print-in-place' design that requires only a single print for a 2-part movable unit. This really just allowed me to make the part smaller and accomplish the same thing in principle. I could have probably gotten even smaller, but this works well. I have printed several articulating models that use this 'print-in-place' feature and it is fascinating to do but not as easy as I thought to design.

            2) This is the Cross-Member which required a couple-three 'try it again, dummy' to get the right contact point and depth as to not interfere with the strut or wheels and not bind. The Fuel tubing cushion helps with tolerance and saves the strut paint.

            3) This is a redesign of the Inner NG top panel with mounting for the compression spring cylinders. Getting the original out was more work than the redesign.

            Best as always, LB

            Click image for larger version  Name:	IMG_0594.JPG Views:	0 Size:	89.6 KB ID:	300368
            Captain: Got any ideas?
            F/O: Actually not.
            — Captain Chesley B 'Sully' Sullenberger III and F/O Jeff Skiles—

            Comment


            • Originally posted by Elbee View Post
              Freewing F-18C Nose Gear Door modification to the modification.
              Hey 3DP'ers, whoops that doesn't sound quite right, anywho, I have designed a different Nose Gear Door Actuator for the Freewing F-18C. Yes, I am still working on this project.

              I had used 2 servos which I modded to linear movement, one on each door and ran into difficulty with it functioning well with the radio versus a servo tester. There was too much play in that design, frankly, and was never 100% consistent without some servo hum. In my mind anytime I can eliminate a servo, it's for the good.

              The NG Doors are now mechanically operated via a cross-member and held open with compression spring tension. Compression to fully close the doors is less than 5 ounces of downward force.

              Myriad electron problems have been solved, though the cylinder design is in it's 2nd iteration and the cross-member took 3 shots to take the loads and not distort or bind.

              This works quite well and I saved just over an ounce of weight as a side benefit.

              Note: The Numbered Photo in sequence:

              1) These are the 'ball/socket' links to the NG door pivot. This was my first attempt at a 'print-in-place' design that requires only a single print for a 2-part movable unit. This really just allowed me to make the part smaller and accomplish the same thing in principle. I could have probably gotten even smaller, but this works well. I have printed several articulating models that use this 'print-in-place' feature and it is fascinating to do but not as easy as I thought to design.

              2) This is the Cross-Member which required a couple-three 'try it again, dummy' to get the right contact point and depth as to not interfere with the strut or wheels and not bind. The Fuel tubing cushion helps with tolerance and saves the strut paint.
              3) This is a redesign of the Inner NG top panel with mounting for the compression spring cylinders. Getting the original out was more work than the redesign.

              Best as always, LB

              Click image for larger version

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Views:	33
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ID:	300368
              Truly phenomenal! Thanks a ton for sharing. This is very inspirational design work.
              Instagram: @tcat.rc.creations

              Comment


              • Originally posted by walkerm45 View Post
                Well Elbee,

                I promised to include some better pics of my 3D printed Pt Boat back in the spring, before the S hit the fan. Well here they are....
                Very nice! I have considered a PT boat before but haven't done one yet. Is this the file you used.... https://www.cgtrader.com/3d-print-mo...led-model-boat

                I have done one 3d printed boat. It uses twin motors and sails very well.
                Click image for larger version

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ID:	300388Click image for larger version

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ID:	300389

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                • Originally posted by radfordc View Post
                  Very nice! I have considered a PT boat before but haven't done one yet. Is this the file you used..
                  Thanks for posting this. very nice, indeed. Best, LB
                  Captain: Got any ideas?
                  F/O: Actually not.
                  — Captain Chesley B 'Sully' Sullenberger III and F/O Jeff Skiles—

                  Comment


                  • Radfordc post 1007: Yes, that is the PT Boat files that I used...... I also had a gentleman on cgtrader produce a complete 1/20th crew of stl files, for the boat, 10 crewmen. Did a nice job, and a lot cheaper than the finished products for sale on the internet...... the hull was printed on an Ender 5 Plus, and all other parts that fit the Prusa I3Mk3s bed, were printed on it. Prusa is much better at detail......walkerm45

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