Summary

Eyepiece 1.25 inch holder.
The ring enable to tighten eyepiece in the tube.
M42 screw.
Different versions.

Proof of concept.
Unfortenately PLA is not enough flexible.
Screwing PLA ring on constrained PLA tube is not optimal.

Searching ideas to decrease constraints on PLA (to avoid PLA cracking).

Print Settings

Printer Brand:

Monoprice

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>Select Mini</p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>Yes</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>Yes</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>.22</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>90%</p></div></p>                                                    <strong>Filament:</strong> Surreal PLA                black                    <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>The lack of flexibility of PLA material is a concern.</p></div>

Post-Printing

Remove raft and support.

Eyepiece 1.25 holder (Openscad)