Block Frame — PRPOL

block_frame() is the hollow frame version of block, always one unit (10 mm) tall.

Customizing block_frame with OpenSCAD parameters

block_frame is a hollow frame of 1 cm units with beams that are always 10 mm wide, and holes on the top and outer sides:

block_frame( dimensions = [3,3], do_nut_pockets = true, nut_thickness = global_default_nut_thickness, nut_width = global_default_nut_width, nut_clearance = global_default_nut_clearance, chamfer_depth = 1.0, hole_diameter = global_default_hole_diameter, hole_faces = 20, echo_parameters = true );

dimensions	the nominal size as an ordered list of 1 cm units, of the form [i, j] where i is the number of units along X and j along Y. The frame is always one unit tall, and its beams are always 10 mm wide.
do_nut_pockets	when true (default), nut pockets are cut at the bolt axes so m3 nuts sit flush.
nut_thickness	nut thickness in mm (default global_default_nut_thickness, 2.6 mm).
nut_width	nut width across flats in mm (default global_default_nut_width, 5.5 mm, sized for m3 nuts).
nut_clearance	extra clearance around the nut pocket in mm (default global_default_nut_clearance, 0.2 mm).
chamfer_depth	edge chamfer in mm (default 1.0).
hole_diameter	mounting hole diameter in mm (default global_default_hole_diameter, 3.2 mm, sized for m3 screws).
hole_faces	the number of sides used for the round holes (default 20). Higher values give smoother holes but slower renders.
echo_parameters	when true (default), the OpenSCAD console echoes the full parameter list when you preview or render the module.

If you leave a parameter out of the module call, that parameter will just have the default value. For example, these are all valid module calls:

block_frame(); block_frame([4,4]); block_frame(dimensions=[8,8]);