My Customized T-Slot Profile (based on 20 mm extrusion)

thingiverse

Using the following settings, create your custom version: * $fs (Layer Thickness) is set to 0.5 * Slot9 is placed at [Inner, -SlotW/2] * Slot8 is located at [Inner, -InsideW/2] * Slot7 is set for Inner and -Flat, centered on -InsideW/2 * Slot6 is positioned at [Inner, -Depth], halfway between the Bottom and Top * Slot5 is placed at [Inner, BottomW/2] * Slot4 is configured as [Inner, + Flat, InsideW/2] * Slot3 is located at [Inner, InsideW/2] * Slot2 is set to [Inner, SlotW/2] * Slot1 is positioned at [Inner + Wall + 1, SlotW/2] * Slot0 is centered at [Inner + Wall + 1, -SlotW/2] Configuration options include: * Number of Slots (NumSlots) is set to 4 * Slot Width (Flat) is set to 5mm * Inside Width (InsideW) is 11.2mm * Extrusion Length is fixed at 10 * Corners are rounded to 1 unit * Outer radius is 20 units * Center hole diameter is set to 5 units * Wall thickness is 2 units * Depth of the object is 4 units