An old project that I am stubborn to finish

The t-slot (final design here) was printed with the following settings:

• Colorfabb XT Black
• 220C noozle and 65C bed
• 0.25 mm noozle
• 0.1 mm layer thickness
• 100% infill
• Print Speed 18 mm/s
• Fan 60%
• 4.5 mm retraction and 40 mm/s

The rubber wheels for the bearings (design here) were printed with the following settings:

• Flexismart black
• 195C noozle and 60C bed
• 0.4 mm noozle
• 0.2 mm layer thickness
• 100% infill
• Print Speed 30 mm/s
• Fan 100%
• No retraction