Head plate

Download a zip file containing all the model files. The total amount of each part that should be made is in the BOM.

Here is the complete Bill of materials (, ) for this guide.

Tools and Materials

Tools:

• 3D Printer (x1)
• Bench grinder (x1), to bevel the locking leadscrew.
• M6 Tap (x1), to tap the flanges on the KFL08 bearing.
• M3 Tap (x1), to tap a hole for supporting the lock's main spring.
• Wire Cutters (x1), to cut the main spring and belts.
• Pliers (x1), to bend the main spring.
• Superglue (x1), to make loops in the ends of the locking GT2 belt.
• Square Crimper Tool (x1), to make a loop on the remote's cable.
  • Nice read on crimping ferrules: https://library.automationdirect.com/ferrule-ferrule-ferrule-right/

Materials:

• 2040 V-Slot Profile 400mm from the Z axis, part of the motion system.
• PLA Filament 1.75mm (x1)

Parts

Head-plate

Parts:

• KFL08 mount:
  • KFL08 Pillow Block Bearing (x1): Front support bearing. Must be M6-tapped on the flanges manually.
  • M6 x 8mm Screw (x2)
• Kinematic coupling:
  • Dowel Pin 4mm x 16mm (x6)
• Z-profile fixture:
  • M4 Drop-In Nut 2020 (x4)
  • M4 x 8mm Screw (x4)
• 3D-printed parts:
  • KFL08 headplate (x1) (source/HEADPLATE-KFL08-V2.1.stl)

Locking mechanism

Parts:

• Custom parts:
  • Beveled 8mm OD x 36mm Leadscrew (x1): must be beveled manually on one end (THSL-8x4-SCREW-L36 reference model).
• Base part:
  • TC lock 608ZZ Bearing Base (x1) (source/608ZZ-BASE.V3.stl)
  • 608ZZ Bearing (x1): Back support bearing.
  • M4 x 6mm Set screw (x2)
  • M4 Hex Nut (x2)
• Belt guide:
  • Mini GT2 Idler Bearing Base (x1) (source/MINI-BEARING-BASE-V3.stl)
  • Mini GT2 Idler 12T L4 (x2) (source/MINI-GT2-IDLER-12T-L4-ID4.stl)
  • 4mm OD x 1.5mm ID Bearing (x2): tiny bearings.
  • 14 mm axle (1.5mm OD) (x2): tiny axle for the tiny bearings.
• Pulley:
  • 32-teeth GT2 Pulley with THSL 8x4 Bore (x1) (source/COMP-THSL_8x4_SHORT-IDLER-10ID-L6.stl)
  • TC lock Printed shim (8x12x1mm) (x1) (source/PULLEY-STOP-1MM)
  • TC lock Printed shim (8x6x2mm) (x1) (source/WASHER-2.0MM)
• Anti belt-slip idler:
  • 625ZZ Bearing (x1): To prevent the belt from slipping.
  • TC lock Separator M3 L14 (x1) (source/SEP-M3-L14-DO5.2.stl)
  • TC lock Separator ID5.4 L1.5 (x1) (source/SEP-ID5.4-L1.5-DO010.stl)
  • TC lock Separator ID5.4 L7.2 (x1) (source/SEP-ID5.4-L7-5-DO010.stl)
  • M3 x 25mm Screw (x1)
  • M3 Hex Nut (x1)
  • M3 Washer (x1)
• Cable guide base for the Z-axis:
  • Cable guide Z base (x1) (source/CAR-Z-TC3-BASE.V1))
  • M3 x 25mm Screw (x2)

The mini bearings and axle might be hard to source locally. Alternatively you can:

• Print MINI-GT2-IDLER-12T-L4-ID1.5 (source)
  • Add graphite powder to the insides to keep this lubricated.
• Replace the axles with 1.2 mm hypodermic needles and trim them to length.

Spring loaded lock

Parts:

• 400mm OD 5mm ID Spring (x1) PLACEHOLDER
• M3 x 12mm Screw (x1), to fix the spring to the 2040 profile.
• GT2 6x600mm Belt (x1), locking belt.
• Square Ferrule 1.5mm ID (x1)