Summary

A small rack lock mechanism, I modeled myself in Fusion360, this model is based on the video of MakerMuse he made a while ago. This model is a good practice to learn how to use constraints.

this model contains 3 pieces :
The locking mechanism
The key
The body

I also included the F3D files, so you can modify some lines and change the key (as shown in the gif above).

Print Settings

Printer:

Prusa i3 pro B

                                            <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>0.2</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>15%</p></div></p>                                                    <strong>Filament:</strong> Primaselect PLA                black                    <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>Printable in about 2 h 30 and only use about 30 grams of filament</p></div>