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assembly: math_magik_lpp

Design Notes

(None)

assembly Design File

math_magik_lpp.scad

//####################################
// math-magik-lpp.scad
// (c) 2021 - Roie R. Black
//************************************
include <math_magik_lpp_pos.scad>
use <MMlib/position.scad>


use <prop/prop.scad>
use <fuselage/fuselage.scad>
use <wing/wing.scad>
use <stab/stab.scad>


module spinning_prop(ang=$t*360) {
  align(prop_pos)
    rotate([-ang,0,0])
      prop();
}

module math_magik_lpp() {
  align(fuse_pos) fuselage();
  align(wing_pos) wing();
  align(stab_pos) stab();
  spinning_prop();
}

//-------------------------------------
// debug display

math_magik_lpp();

Component Data File(s)

math_magik_lpp_data.scad

//####################################
// math-magik-lpp_data.scad
// (c) 2021 - Roie R. Black
//************************************
include <constraints.scad>

// calculated prop width
prop_x_width = 1.3287;
prop_x_offset = -1/4 - 1/32;
prop_z_offset = -3/16;

// fuselage data
thrust_bearing_x_offset = -1/4;

// wing design constants
wing_x_offset = 1.625;
wing_elevation = 3;
wing_rib_camber = 4;
wing_center_span = 12;
wing_tip_radius = 2;
wing_spar_size = 1/16;


// stab dimensions
stab_x_offset = max_overall_length - prop_x_width - max_stab_chord;
stab_center_span = 6;
stab_rib_camber = 2;
stab_tip_radius = 1.5;
stab_elevation = 0.5;

// motor stick dimensions
motor_stick_thickness = 1/8;

// post size
post_size = 1/16;

constraints.scad

//####################################
// Math-Magik LPP - Design Constraints
// (c) 2021 by Roie R. Black
//====================================

// AMA Rules for event 208
//------------------------------------

max_overall_length = 20;
max_projected_wing_span = 18;
max_bearing_to_rear_hook = 10;
max_wing_chord = 5;
max_stab_span = 12;
max_stab_chord = 4;
max_prop_diameter = 12;

materials.scad

//###########################################
// materials.scad
// (c) 2021 - Roie R. Black
//*******************************************

tube_thickness = 1/64;
tube_height = 1/8;
post_diameter = 1/16;

Components

• assembly: prop
• assembly: stab
• assembly: fuselage
• part: rubber_motor
• assembly: wing

Component Position File

math_magik_lpp_pos.scad

//####################################
// math-magik-lpp_pos.scad
// (c) 2021 - Roie R. Black
//************************************
include <math_magik_lpp_data.scad>
include <./materials.scad>
include <./fuselage/thrust_bearing/thrust_bearing_data.scad>
include <./fuselage/motor_stick/motor_stick_data.scad>
include <./fuselage/tail_boom/tail_boom_data.scad>


fuse_pos = [0,0,0,0,0,0];
wing_pos = [wing_x_offset,-ms_thickness/2-post_diameter/2,wing_elevation,0,0,0];

stab_y_offset = ms_thickness/2 + tb_thickness + post_diameter/2;
stab_pos = [stab_x_offset,-stab_y_offset,stab_elevation,0,0,0];
prop_pos = [prop_x_offset, 0, prop_z_offset, -40,0,0];
echo(prop_x_offset);