suggest to use 20mm 'board_thickness' when using single plate + y lm8uu holders

[clinton/prusa3.git] / box_frame / configuration.scad.dist

diff --git a/box_frame/configuration.scad.dist b/box_frame/configuration.scad.dist
index 3a010a1..0c72376 100644 (file)
--- a/box_frame/configuration.scad.dist
+++ b/box_frame/configuration.scad.dist
@@ -6,9 +6,6 @@
 // http://www.reprap.org/wiki/Prusa_Mendel
 // http://github.com/prusajr/PrusaMendel
 
-// PLEASE SELECT ONE OF THE CONFIGURATIONS BELOW
-// BY UN-COMMENTING IT
-
 include <inc/metric.scad>;
 include <inc/conf_bushing.scad>;
 
@@ -21,7 +18,7 @@ width_over_thickness = 2.2;
 
 //T2.5
 belt_tooth_distance = 2.5;
-belt_tooth_ratio = 0.5;
+belt_tooth_ratio = 0.75;
 
 //T5 (strongly discouraged)
 //belt_tooth_distance = 5;
@@ -35,30 +32,60 @@ belt_tooth_ratio = 0.5;
 //belt_tooth_distance = 2.032;
 //belt_tooth_ratio = 0.64;
 
-//GT2
+//GT2 there is bunch of GT2 belts with different tooth-to-tooth distance
+//adjust to your needs
 //belt_tooth_distance = 2;
 //belt_tooth_ratio = 0.5;
 
+// For T type belts you will probably want 0.8mm or so.
+belt_thickness = 1.75;
+
 // Choose bearing/bushing configuration ***************************************
 // conf_b_* are in inc/conf_bushing.scad
 
 bushing_xy = conf_b_lm8uu;
 bushing_z = conf_b_lm8uu;
+// for longer bearings use one shorter in x-carriage to make place for belt attachment
+// by default use same as xy
+bushing_carriage = bushing_xy;
 
 // Select idler bearing size **************************************************
-
-// 0 = 608 [standard skate bearings]
-// 1 = 624 [roughly same diameter as pulley, makes belt parallel so its prettier]
-
-idler_bearing = 0;
+// [outer_diameter, width, inner_diameter, uses_guide]
+// 608 [standard skate bearings] with bearing guide
+bearing_608 = [22, 7, 8, 1];
+//608 bearings with fender washers. Not good at all, the belt brushes against the carriage
+bearing_608_washers = [22, 10, 8, 0];
+// one 625 with guides
+bearing_625 = [16, 5, 5, 1];
+// two 625 - for use without bearing guides.
+bearing_625_double = [16, 10, 5, 0];
+
+// those two here are really good:
+bearing_624_double = [13, 10, 4, 0];
+// this one has roughly same diameter as pulley, makes belt parallel so its prettier
+bearing_623_double = [10, 8, 3, 0];
+
+idler_bearing = bearing_624_double;
+
+//Select carriage lenght
+// 30 for single carriage extruder (two holes with centers 30mm apart)
+// 50 for wade or single with fan (three holes, 30-20)
+// 80 for full length carriage (four holes, 30-20-30)
+
+carriage_l_base = 50;
 
 // Fillets ********************************************************************
+// fillets are rounded corners of boxes. The right engineering term is probably radius
+// but cad software calls it fillet.
+// mostly cosmetic, except z axis.
 // 0 = no fillets
 // 1 = fillet
+// 2 = chamfer (cut the edges at 45deg. angle)
+// Please do put only parts with fillets on sale, other options are not really tested
 
 use_fillets = 1;
 
-//set to 0 for single plate (affects z axis)
+//set to 0 for single plate (affects z axis and screws that attach RP parts to frame)
 i_am_box = 1;
 
 //if you do your own plate and can move bottom Z screws 5mm up set this to 0 to
@@ -67,12 +94,15 @@ i_want_to_use_single_plate_dxf_and_make_my_z_weaker = 1;
 
 //radius of long threaded rod on Y frame
 //Use 5.4 for M10 or 4.4 for M8
-
 y_threaded_rod_long_r = 5.4;
 
-// Thickness of the XZ plate board
+// Thickness of the XZ plate board. 
+// Use 20 for single plate if you want to use the Y lm8uu holders
 board_thickness = 12;
 
+// segments of small holes. some poeple claim that a low value makes them easier to print.
+small_hole_segments=7;
+
 // END of custom settings
 
 
@@ -83,13 +113,7 @@ xaxis_rod_distance = 45;
 //calculated from settings
 single_wall_width = width_over_thickness * layer_height;
 
-idler_size = (idler_bearing == 0) ? 22 : 13;
-
-//use 4.5 for 608, 2.5 for 624
-idler_size_inner_r = (idler_bearing == 0) ? 4.5 : 2.5;
-
-idler_width = (idler_bearing == 0) ? 9 : 5;
-
+idler_width = (idler_bearing[1] > 7 ? idler_bearing[1] : 7) + 2.5 * idler_bearing[3] ;
 
 //deltas are used to enlarge parts for bigger bearings 
 xy_delta = ((bushing_xy[1] <= 7.7) ? 0 : bushing_xy[1] - 7.7) * 0.9;