raulbejarano/ultimate-toroidal-propeller-generator

The Ultimate Toroidal Propeller Generator is an open source project that provides a way to generate STL files of toroidal drone propellers.

ultimate-toroidal-propeller-generator's Issues

blade offset always set to -5

Rename parameters to better understandability

AS designer
I WANT TO have clear parameters
SO THAT it would be great changing this parameters:

eh_l = 0,                       // length of the emptying of the hub
eh_d = 0                        // diameter of the hollowing of the hub

to something like:

hub_notch_height= 0,        // height of the emptying of the hub
hub_notch_diameter= 0     // diameter of the hollowing of the hub

aerodynamic airfoil

Hey.

I don't know anything about 3D-printing and OpenSCAD, but I do know stuff about airfoils and aerodynamics. I am wondering how it would be possible to implement the usage of NACA-profiles / airfoils. I know sharp edges are not good for printing. But I would like to investigate designs using cfd and I don't want to be limited by 3D-printing capabilities. Also efficient propellers have to be optimized by the blade-curvature and thickness anyhow. If we could choose from NACA-airfoils, we could predict the capabilities and necessary geometry-parameters for given rpm's.

How would you implement this?

Erron on creating a double propeller

I want to ask if it is possible to put a variable to modify the helix form ​​here are pictures of a different helix

What im asking for:

Thanks

Add hollow airfoil profile

Refactor for performance

A code refactoring is needed to improve performance.

One approach might be create all the blades in 2D with the safety stuff an then extrude them.

design for the outboards.

I wish I could design something like this, for the ship. Can you add a future to move blades like in the photo? Thanks

optional hub recess

Would it be possible to add configurable recess in hub, so that it can "slip over" thicker tapped shaft ?
effectively it would be second configurable hub removed from the original one..

Nozzle size ??

Hi, I don't know if this is the place to ask this but :- I would like to know what size extruder nozzle I should use to print this, I have tried with my stock ender 5 S1 and all I get is a flimsy paper this propellor I have increased the thickness to 5 with no noticable difference what does the blade_thickness represent as it doesn't seem to be mm. here are all my settings just incase I'm an eejit and messed it up

$fn = 100;                      // how polligonall you want the model

toroidal_propeller(
blades = 3, // number of blades | Default(3)
height = 5, // height | Default(6)
blade_length = 90, // blade length | Default(68)
blade_width = 56, // blade width | Default(42)
blade_thickness = 5, // blade thickness | Default(4)
blade_hole_offset = 1.4, // blade hole offset | Default(1.4)
blade_twist = 15, // blade twist angle | Default(15) CW
//blade_twist = -15, // blade twist angle | Default(15) CCW
blade_offset = -6, // blade distance from propeller axis | Default(-6)
safe_blades_direction = "PREV", // indicates if a blade must delete itself from getting into the previous (PREV) or the next blade (NEXT) | Default("PREV")
hub_d = 16, // hub diameter | Default(16)
hub_screw_d = 6, // hub screw diameter | Default(5.5)
eh_l = 2, // length of the emptying of the hub | Default(0 = [No support])
eh_d = 8 // diameter of the hollowing of the hub | Default(0 = [No support])
);

Blade distance from propeller axis

AS a designer,
I WANT to set the blade distance from propeller axis
SO THAT I can create more complex models.

Support of any blade base shape

Right now the only available blade base shape is a circle or elipse (by resizing the circle).But it will be awesome if any kind of blade base shape can be set. So....:

AS designer
I WANT to use any kind of blade base shape
SO THAT I can create more customizable propellers

Thougts on this: I think this can be achieved using children, so maybe it will be posible transform this module into an operator. But it can be difficult to manage the blade thickness.

Use attack angle instead of twist

AS A designer
I WANT to set an attack angle instead of twist parameter
SO THAT I can be easy to use

Missing method call to actually build the thing

Missing toroidal_propeller(); in the end of the file.

Allow change safe blade direction

AS a designer
I WANT to select which direction use to prevent a blade getting into another
SO THAT I can make more configurable propellers

Complete checklist of community standards

Check: https://github.com/RaulBejarano/Ultimate-Toroidal-Propeller-Generator/community

And complete the checklist.

CW and CCW propellers are not equivalents.

There is a problem with the generation of CW and CCW propellers because he are not equivalents.

It seems that when is substracting what it's inside another blade it don't take in account the direction.

Customizable hub height

AS A designer
I WANT to set a parameter to define the hub height
SO THAT I can customize the hub height