Center Line Finder

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Note: New version using only Chicago Screws can be found here: https://www.thingiverse.com/thing:2761482
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Could only find Center Finder Tools, But I needed a Center Line Marking tool, so I modified them to mark a center line.

Minimum width for marking center line: 22mm
Maximum width for marking center line: 59mm

Fasteners required:
1. Chicago Screws, Shaft Diameter 4mm x 12mm. Qty: 4
2. M3 nut. Qty: 2
3. M3x12 Csunk screw. Qty: 2

3D prints required:
1. CF_arm.stl x2
2. CF_link.stl x2
3. CF_rule.stl x1