Summary

Have a missing button cap on your old HP or Agilent bench gear? Then I've got just the thing for you!

Designed for my HP 3478a bench DMM, but should fit similar '70s - '90s vintage gear with 1/4" square pushbutton stems.

Print Settings

Printer Brand:

Monoprice

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>Maker Select</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>0.1mm</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>Yes</p></div></p>                                                        <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>Print as fine as you can with wall thickness &gt;=1.2mm to insure that there are no gaps in the lower section of the switch.  Print 2-3 at a time to keep from warping.</p><p>Do not use supports.</p><p>OpenSCAD source is provided if the dimensions are off on your printer.  See the comments in the file for tuning.</p></div>

Post-Printing

Trim off any first layer flash (brim or squish). Use a pick to tease out any overhangs inside the button so it sits flush with the post's backstop. Then use fine sandpaper to round out the sharp edges, smooth the sides and top, and even out the first layer.

Replacement button for HP / Agilent test equipment