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-rw-r--r--mech/mech.mk2
-rw-r--r--mech/pcb_case/nut.scad23
2 files changed, 23 insertions, 2 deletions
diff --git a/mech/mech.mk b/mech/mech.mk
index 6807c03..c92ef7b 100644
--- a/mech/mech.mk
+++ b/mech/mech.mk
@@ -1,5 +1,5 @@
MECH_BUILD_DIR := $(BUILD_DIR)/mech
-PARTS := bottom top back front
+PARTS := bottom top back front pcb_case/nut
STL := $(PARTS:%=$(MECH_BUILD_DIR)/%.stl)
GCODE := $(PARTS:%=$(MECH_BUILD_DIR)/%.gcode)
diff --git a/mech/pcb_case/nut.scad b/mech/pcb_case/nut.scad
index bfd5b3d..407ab09 100644
--- a/mech/pcb_case/nut.scad
+++ b/mech/pcb_case/nut.scad
@@ -1,9 +1,30 @@
nut_h = 3;
nut_d = 4.15;
nut_r = nut_d / 2;
+nut_d_tol = 0.5;
module nut() {
cylinder(d=nut_d,h=nut_h);
}
-nut();
+module nut_tolerance_test() {
+ steps = 3;
+ step_width = 0.1;
+
+ for(i = [-steps : steps]) {
+ tol = nut_d_tol + i * step_width;
+ translate([i*5*nut_d,0,0])
+ difference() {
+ cube([5*nut_d, 5*nut_d, 2*nut_h]);
+ translate([2.5*nut_d,2.5*nut_d,0]) {
+ union() {
+ cylinder(d=nut_d,h=2*nut_h,$fn=50);
+ translate([0,0,nut_h])
+ cylinder(d=nut_d_tol+nut_d,h=nut_h,$fn=50);
+ }
+ }
+ }
+ }
+}
+
+nut_tolerance_test();