Preparing to drop magnets

src/dactyl_manuform.py

@@ -1519,11 +1519,11 @@ def oled_sliding_mount_frame(side='right'):
 
         shape = box(mount_ext_width, mount_ext_height, oled_mount_depth)
 
-        conn_hole_start = -mount_ext_height / 2.0 + oled_mount_rim
+        conn_hole_start = (-mount_ext_height / 2.0 + oled_mount_rim) - 2
         conn_hole_length = (
                 oled_edge_overlap_end + oled_edge_overlap_connector
                 + oled_edge_overlap_clearance + oled_thickness
-        )
+        ) + 4
         conn_hole = box(oled_mount_width, conn_hole_length + .01, oled_mount_depth)
         conn_hole = translate(conn_hole, (
             0,

src/helpers_cadquery.py

@@ -284,3 +284,36 @@ def blockerize(shape):
         tmp = s
 
     return intersect(shape, tmp)
+
+# generate a cutter to exact size/shape of an M3 4mm x 4mm brass insert
+# size is scaled a bit for non-resin prints, so heat-set works
+def insert_cutter(radii=(2.3, 1.95), heights=(2.8, 1.5), scale_by=1):
+    if len(radii) != len(heights):
+        raise Exception("radii and heights collections must have equal length")
+
+    top_radius = 4.7 / 2
+    top_height = 2.8
+    medium_radius = 4.0 / 2
+    medium_height = 1.5
+    # medium2_radius = 5.1 / 2
+    # medium2_height = 0.8
+    # bottom_radius = 4.85 / 2
+    # bottom_height = 1.6
+
+    total_height = sum(heights) + 0.2  # add 0.1 for a titch extra
+
+    half_height = total_height / 2
+    offset = half_height
+    cyl = None
+    for i in range(len(radii)):
+        radius = radii[i] * scale_by
+        height = heights[i]
+        offset -= height / 2
+        new_cyl = cq.Workplane('XY').cylinder(height, radius).translate((0, 0, offset))
+        if cyl is None:
+            cyl = new_cyl
+        else:
+            cyl = cyl.union(new_cyl)
+        offset -= height / 2
+
+    return cyl

src/json/material/fdm.json

@@ -4,7 +4,7 @@
   "screw_cbore_diameter": 6,
   "screw_insert_height": 4.5,
   "screw_hole_diameter": 3.6,
-  "screw_cbore_depth": 5.5,
+  "screw_cbore_depth": 5,
   "base_thickness": 2.5,
   "base_offset": 3
 }

src/json/options/magnets.json

@@ -1,6 +1,6 @@
 {
   "magnet_bottom": true,
-  "screw_insert_height": 4.0,
+  "screw_insert_height": 2.7,
   "screw_insert_bottom_radius": 3.2,
   "screw_insert_top_radius": 3.2,
   "screw_hole_diameter": 6.4,

src/json/options/polydactyl.json

@@ -7,7 +7,7 @@
   "last_1_5U_row": 4,
   "default_1U_cluster": false,
   "full_last_rows": true,
-  "oled_mount_type": "CLIP",
+  "oled_mount_type": "SLIDING",
   "oled_left_wall_lower_y_offset": 12,
   "extra_height": 0.7,
   "wall_z_offset": 8,