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diff --git a/3d-printables/caster-standoff.scad b/3d-printables/caster-standoff.scad
index aff2eb5..0e745fd 100644
--- a/3d-printables/caster-standoff.scad
+++ b/3d-printables/caster-standoff.scad
@@ -14,13 +14,13 @@ ball_radius = ball_diameter / 2;
 wall_thickness = 1;
 holder_floor = 3;
 holder_arms_length = 10;
-holder_height = holder_floor + holder_arms_length + (25 / 32) * ball_diameter;
+holder_height = holder_floor + holder_arms_length + (3 / 4) * ball_diameter;
 
 holder_radius = ball_radius + wall_thickness;
 holder_diameter = holder_radius * 2;
 
 standoff_radius = holder_radius; // 0.580 / 2 inches from spec sheet
-standoff_height = 48; // eyeballed
+standoff_height = 48 - holder_height; // eyeballed
 
 // eyeballed caster flange height, (0.580/5) inches, times 2 to be stronger
 caster_flange_height = 5;