Gauge 1 (1:32) Märklin style coupling - IMPROVED

prusaprinters

<p>In the version of the Märklin-style coupling by "raby" (<a href="https://www.thingiverse.com/thing:1605582">https://www.thingiverse.com/thing:1605582</a>) the metal spring/plate under the hook was missing. (a picture of a Märklin hook is added as reference)</p><p>Due to this missing spring, these hooks frequently release unintended when driving over bumps, points and rail-joints in the track.</p><p>A piece of plastic is added to the lid. This acts as spring when printed in PETG. PLA is probably too brittle for the intended purposes.</p><p>The original design by "raby" has been left unchanged.</p><p>Good luck,</p><p>Rob</p><h3>Print Settings</h3><p><strong>Printer Brand:</strong></p><p>Creality</p><p><strong>Printer:&nbsp;</strong></p><p>CR-10</p><p><strong>Rafts:</strong></p><p>No</p><p><strong>Supports:&nbsp;</strong></p><p>Yes</p><p><strong>Resolution:</strong></p><p>0.2 mm</p><p><strong>Infill:&nbsp;</strong></p><p>20</p><p><strong>Filament:</strong> 12-3D PETG Black</p><p><br>&nbsp;</p><p><strong>Notes:</strong></p><p>&nbsp;</p><p>3 walls</p><p>Post-Printing =============</p><p>1: Take a suitable spring to fit between the dimple on the hook and the holder. (use a piece of the spring from a ballpoint pen)</p><p>2: Mount the cover by glueing 2 pieces of filament in the intended holes.</p><p>3: To make automatic uncoupling possible a suitable pin/filament is glued in the holes on the side and underside.</p><p>&nbsp;</p><p>&nbsp;</p>