Summary

I printed this to make the quill and spindle a solid assembly when converting the PM-728 to CNC. Prior to this, the spindle made a noise/vibration due to the motion of the spline connection. I removed the spring and existing bushing then used a M20x1.0 nut on top of this bushing. I also loaded the space with a generous amount of "sticky grease" which is thick so it won't run out quickly.

M20-1.0 Nut: https://www.amazon.com/dp/B018R9VYNW
Sticky Grease: https://www.amazon.com/dp/B00F9R94HY

Print Settings

Printer Brand:

Prusa

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>I3 MK3S</p></div></p>                                                                                <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>.4mm</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>90%</p></div></p>                                                    <strong>Filament:</strong> Hatchbox ABS                Black                    <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>Printed with .6mm Nozzle but others should be fine</p></div>

PM-728VT Spindle Bushing

PM-728VT Spindle Bushing

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