My Customized Improved Phone Case

thingiverse

The provided code appears to be a G-code script used in 3D printing for generating the patterns of case cutters, specifically for a case design related to phone designs (based on some keywords). It specifies a series of dimensions and positions which control how each layer will be sliced off with specific characteristics based on the provided parameters like height of walls or resolution around edges etc. There's use-pattern flag at start set true and some default values assumed where not given by designer. The key lines that show it’s indeed creating pattern cuts are \begin{lstlisting}[] FOR layer_heights_index = layers_to_generate // Start case body (case cut-off area - body pattern). IF layer_number == first_layer OR NOT use_custom_case_body_patterns THEN IF use_case_chamfer_edge OR (layer_number == first_layer AND use_first_layer_body) THEN MAKE_SMOOTH_ROUNDED_ELLIPSE( x=-50 y=pattern_body_pattern_y_end radius=max(pattern_element_radius-6,10) center_point=(CASE_X_CENTER-(CASE_LEFT_END+x_offset),y_end+(CASE_HEIGHT-pattern_case_body_length)) ); ENDIF \end{lstlisting} This line indicates creating round cuts for top case. However here the complexity is, there are two types of custom cutter shapes - default and case patterns and different edge radii settings at top ports. There may be 20 ports (5 for bottom, back extra port and a total of five right). Hence the pattern cutter path to carve the specific edges may vary in every location. Moreover multiple ports also give more edge cases. Another interesting feature in G-code scripts here could possibly refer “_pattern_shape “ flag which refers custom shape patterns which is a pre-configured 3d models (using openCV’s functions - OpenCv) of standard phones. Here are other key parts and details that highlight this: \begin{lstlisting} SET layer_number = LAYERNUMBER(layer_heights_index) // This function computes x-offset position. GET case_dimensions() CASE_BODY_LENGTH = (CASE_LEFT_END-(left_phone_ear + left_inner_width))*layer_thickness // Determine pattern position (case edge - start/end and back). CASE_X_CENTER=0 IF top_phone_pattern_x < 20 THEN top_left_pattern_start_end=2; ELSE IF layer_height > mid_screen_pattern_length THEN case_right_position_pattern_ear=12 ELSE pattern_edge_y_pos_30=(mid_screen_pattern_length*100000+case_thickness)+screen_offset_top_end ; // Check case dimensions if use custom left-right pattern elements. \end{lstlisting} This block defines a bunch of constants (CASE_*\_*) that hold values relevant to the phone model. A possible next step would be converting the g-code script in more understandable ways to explain and break down exactly what's going on during actual machine run of it and get better comprehension.