diff --git a/gridfinity-rebuilt-baseplate.scad b/gridfinity-rebuilt-baseplate.scad
index c3ee0f0..8750e53 100644
--- a/gridfinity-rebuilt-baseplate.scad
+++ b/gridfinity-rebuilt-baseplate.scad
@@ -58,6 +58,7 @@ style_hole = 1; // [0:none, 1:contersink, 2:counterbore]
 
 
 // ===== IMPLEMENTATION ===== //
+screw_together = (style_plate == 3 || style_plate == 4);
 
 color("tomato") 
 gridfinityBaseplate(gridx, gridy, length, distancex, distancey, style_plate, enable_magnet, style_hole, fitx, fity);
@@ -75,7 +76,7 @@ module gridfinityBaseplate(gridx, gridy, length, dix, diy, sp, sm, sh, fitx, fit
     dx = max(gx*length-0.5, dix);
     dy = max(gy*length-0.5, diy);
 
-    off = (sp==0?0:sp==1?bp_h_bot:h_skel+(sm||sp==3||sp==4?h_hole:0)+(sh==0?(sp!=3&&sp!=4)?0:d_screw:sh==1?d_cs:h_cb));
+    off = calculate_off(sp, sm, sh);
 
     offsetx = dix < dx ? 0 : (gx*length-0.5-dix)/2*fitx*-1;
     offsety = diy < dy ? 0 : (gy*length-0.5-diy)/2*fity*-1;
@@ -115,6 +116,21 @@ module gridfinityBaseplate(gridx, gridy, length, dix, diy, sp, sm, sh, fitx, fit
 
 }
 
+function calculate_off(sp, sm, sh) = 
+    screw_together
+        ? 6.75
+        :sp==0
+            ?0
+            : sp==1
+                ?bp_h_bot
+                :h_skel + (sm
+                    ?h_hole
+                    : 0)+(sh==0
+                        ? d_screw
+                        : sh==1
+                            ?d_cs
+                            :h_cb);
+
 module cutter_weight() {
     union() {
         linear_extrude(bp_cut_depth*2,center=true)