From: Clinton Ebadi <clinton@unknownlamer.org>
Date: Wed, 31 May 2017 01:49:25 +0000 (-0400)
Subject: a few trivial calibration models
X-Git-Url: http://git.hcoop.net/clinton/3d-models.git/commitdiff_plain/851a9f51f870c2e7cf7014e1fbde38111e8bfc85

a few trivial calibration models
---

diff --git a/calibration/cube-ooze.scad b/calibration/cube-ooze.scad
new file mode 100644
index 0000000..ea7631f
--- /dev/null
+++ b/calibration/cube-ooze.scad
@@ -0,0 +1,74 @@
+// quick hack to test linear pressure advance with a side of mild
+// retraction torture
+
+d = 30;
+
+translate ([d,0,0]) cube (d);
+
+translate ([-d-10,0,0]) cube ([d/3, d, d]);
+
+translate ([-d-10,-d*2,0]) cube (d/2);
+translate ([d+15,-d*2,0]) cube (d/4);
+
+/*
+
+ 
+try 2mm retract (then 35mm/s?)
+2mm jammed
+35mm/s jammed even with R2000 and 5.0 ejerk
+
+M905 K50
+M204 T2000 P500 R3000
+M205 X8.0
+
+M905 K50
+M204 T2000 P500 R2000
+M205 X12.0 E5.0
+
+M905 K50
+M204 T2000 P500 R3000
+M205 X12.0 E5.0
+
+next bump ejerk if needed
+R3000 = boom
+
+M905 K50
+M204 T2000 P500 R2000
+M205 X12.0 E10.0
+
+everything fucking sucks
+M905 K50
+M204 T2000 P500 R2000
+M205 X12.0 E5.0
+
+seriously
+M905 K0
+M204 T2000 P500 R3000
+M205 X12.0 E10.0
+
+round 2:
+
+ - ooze test 35mm/s 1.5mm retract with solid green and K50. Fail or
+   succeed does not matter, just need a reference for "it can work" or
+   "fail expected"
+ - several ooze test models with K0 and atomic filament
+   - Try R2000, 25mm/s 1.5mm, E10.0. Reduce jerk, then accel if needed
+   - Try R3000 (if it works), 35mm/s 1.5mm
+   - Intermediate retract speeds if required
+
+   initial result: both did ooze test @ max. plain green filament does
+   robot at most brutal 1.5mm settings without issues...
+
+M203 E35.0
+M204 T2000 P500 R3000
+M205 X15.0 E10.0
+M905 K50
+
+
+
+M203 E35.0
+M204 T2000 P500 R3000
+M205 X12.0 E10.0
+M905 K50
+
+*/
diff --git a/calibration/ringing.scad b/calibration/ringing.scad
new file mode 100644
index 0000000..300c08f
--- /dev/null
+++ b/calibration/ringing.scad
@@ -0,0 +1,45 @@
+/*
+  Simple model to test for surface ringing at high print speeds.
+ */
+
+$fn = 64;
+
+radius = 35;
+height = 35;
+n_pits = 3;
+
+pit_radius = height/n_pits/2;
+//pit_height = radius*2;
+
+difference () {
+     cylinder (h = height, r = radius, center = true, $fn = 128);
+     cylinder (h = height+1, r = radius-radius/4, center = true, $fn = 128);
+     pits (offset = radius);
+}
+pits (offset = -radius);
+
+ pit_rotations = rands (min_value = 0, max_value = 180, value_count = n_pits);
+
+module pits (offset) {
+     for (i = [0 : n_pits - 1]) {
+	  echo (pit_rotations[i]);
+	  rotate ([0, 0, pit_rotations[i]])
+	  translate ([offset, 0, -height/2+pit_radius+i*height/n_pits]) 
+	       rotate ([0, 90, 0]) {
+	       /*translate ([0, 0, -3])*/ sphere (r = pit_radius);
+//	       cylinder (h = 6, r = pit_radius, center = true);
+	       }
+     }
+}
+
+
+module random_balls () {
+     pit_offsets = rands (min_value = -radius/2, max_value = radius/2, value_count = n_pits);
+     pit_rotations = rands (min_value = 0, max_value = 180, value_count = n_pits);
+
+     for (i = [0 : n_pits-1]) {
+	  translate ([0, 0, max (-pit_radius, i*height/n_pits-pit_height)]) rotate ([pit_rotations[i], 90, 0])
+	       translate ([radius, radius, 0]) sphere (r = pit_radius);
+	  //cylinder (h = pit_height, r = pit_radius, center = true);
+     }
+}
diff --git a/calibration/walls.scad b/calibration/walls.scad
new file mode 100644
index 0000000..04078f9
--- /dev/null
+++ b/calibration/walls.scad
@@ -0,0 +1,13 @@
+// empty cube to test ninjaflex inner/outer wall adhesion
+
+nozzle_diameter = 0.5;
+d = 30;
+h = 20;
+wall = nozzle_diameter*4;
+
+difference () {
+     cube ([d, d, h], center=true);
+     // intentionally thin floor
+     translate ([0, 0, wall/2]) #cube ([d-wall, d-wall, h+0.01], center=true);
+}
+