dukerogerpl

Forum Replies Created

Viewing 15 posts - 1 through 15 (of 68 total)
  • Author
    Posts
  • Avatardukerogerpl
    Participant

    check picture of transparent plane above, check propeller on it. It folds 🙂 so we call it foldable 😉

    in reply to: Aircraft request. #1303635
    Avatardukerogerpl
    Participant

    Yeah – this is cool idea; something like MIG-29 or Su-27? I would like PZL TS-11 Iskra

    in reply to: A-10 Warthog #62272
    Avatardukerogerpl
    Participant

    I want one 🙂

    in reply to: PZL p.11c Decals #58978
    Avatardukerogerpl
    Participant

    Hi, I’m not sure if it is what you meant but can find it for example here: HERE

    BR
    Piotr

    in reply to: C.U Wave Cruiser Q & A #53615
    Avatardukerogerpl
    Participant

    XTC-3D, on smell it is epoxy resin

    in reply to: C.U Wave Cruiser Q & A #53005
    Avatardukerogerpl
    Participant

    Few shots with recent status;
    I have covered hull with some 3d print resin; it should make it watertight and smooth surfaces. I plan to slightly sand it now; than apply base and final coating.
    I have also created some 3d printed water inlets which I have installed in bottom and supported from inner bottom. Also I have drilled a whole through transom and glued inside copper pipes for cooling outlet. All propulsion is printed and set together. I’m using here modified version of shaft with bigger hex size. Looks like we can soon see her on the water 🙂

    Some problems I have experienced:
    1. Printing of windshield appeared to be somehow challenging; I’m struggling to achieve smooth surface due to inner structure inside it.
    2. Rubber sealing; bow part appeared to be challenging; it took me 4x to have finally good effect; speed was reduced to 25% of originals, temperature for filament was important factor which you have to find yourself for material you own.

    • This reply was modified 1 year, 8 months ago by Avatardukerogerpl.
    Attachments:
    You must be logged in to view attached files.
    in reply to: C.U Wave Cruiser Q & A #52149
    Avatardukerogerpl
    Participant

    And status for today:

    Attachments:
    You must be logged in to view attached files.
    in reply to: C.U Wave Cruiser Q & A #52143
    Avatardukerogerpl
    Participant

    I decided to modify engine mount to use water cooled bracket. Effects below:

    Attachments:
    You must be logged in to view attached files.
    in reply to: C.U Wave Cruiser Q & A #52089
    Avatardukerogerpl
    Participant

    Can you show some pics? After printing parts needs some “force” treatment, but finally it works

    in reply to: Problem with water #52088
    Avatardukerogerpl
    Participant

    That is mine concern too, my boat is soon to be launched. Completing mechanical elements together I have noticed that bearings are generally moving quite easy on shaft. I think this could be glued on some sanitary silicone?

    in reply to: C.U Wave Cruiser Q & A #37706
    Avatardukerogerpl
    Participant

    Regarding rudder printing; I had issues with nozzle height above printing bed; if it is too low it is basically melting whole 1st layer into one object. Type of material matetrs as well, it is little more difficult with PET-G but I finally managed.

    in reply to: C.U Wave Cruiser Q & A #37697
    Avatardukerogerpl
    Participant

    I don’t like such notched connections; they sucks from fatigue point of view. Stress concentration factor is huge there. Also in case connection breake you have to replace whole large element.

    in reply to: C.U Wave Cruiser Q & A #37676
    Avatardukerogerpl
    Participant

    Regarding jet idea; description is saying about boats up to 1m of length – I think it should be enough, there are in general two options:
    1. Single jet propeller in the middle, example I have sent you is about it, it is also shaped to similar angle like your boat. This project included steerable vector of trust but no reverse. Modification would have to flash bottom of the boat and include channel for jet propulsion. I would also propose to add already a cooling inlet and outlet.
    2. Two jet propellers on sides. Than we don’t need steerable trust vector but we could include reverse trust option. Should still provide good maneuverability. Modifications of hull would have to flash whole last segment of bottom and include 2 channels for jet propulsion and engines foundation. Also inlets and outlets for cooling would have to be added.

    in reply to: C.U Wave Cruiser Q & A #37656
    Avatardukerogerpl
    Participant

    IMO this will not change anything; still weakest part will be HEX cross section; there is v2 of shaft available which have this part increased to max of other elements – I suggest to use screw which is shorter – 12mm?

    in reply to: C.U Wave Cruiser Q & A #37634
    Avatardukerogerpl
    Participant

    Actually back wheel is pressing fwd 🙂 Problematic is proposed size of screw – it is too long, when you use force you are breaking thread in plastic of shaft and whole thing is much more fragile.
    I have also tested shaft with bigger HEX part but this is about real torque transmission.

    Ulf… woudl you be interested in cooperation to make a version with jet propulsion? Something like this? JET

Viewing 15 posts - 1 through 15 (of 68 total)