Emergency Exit Light Test Button Poker

prusaprinters

<p><strong>Background:</strong></p><p>The small business I work for owns a small building that has 18 emergency exit lights. &nbsp;Fire code requires these lights to have a battery backup that must be checked twice a year to verify the battery is in working order. &nbsp;Checking each light requires that I move a ladder around to 18 different places in the building.</p><p>A 4-foot long wood dowel rod and this print removed the need for the ladder (for me) - making the process of checking emergency lights much faster and easier.</p><p>Reference the included pictures for additional understanding of the intended use.</p><p>&nbsp;</p><p><strong>Design:</strong></p><p>Designed in Metric to fit on the end of an imperial 7/16 inch (~11mm) diameter wood dowel rod.</p><p>Total print length: 52 mm</p><p>Cylinder/shaft length: 30 mm</p><p>Cylinder/shaft diameter: ~11 mm</p><p>Pokers: 12 mm</p><p>Cylinder walls: 3 mm</p><p>&nbsp;</p><p><strong>Print setup:</strong></p><p>The .gcode and .3MF files have custom supports included so that the horizontal poker is supported but there are no supports in the cylinder/shaft where the dowel is inserted (supports are not needed in the interior shaft). &nbsp;I added the supports in PrusaSlicer by using “Supports: Everywhere” and then using a cylinder support blocker in the cylinder/shaft.</p><p>.20 mm Quality</p><p>15% infill (only used in the top 22mm of the print)&nbsp;</p><p>3 perimeters (shaft walls are just perimeters with no infill)</p><p>Detect thin walls (may not be needed)</p><p>No brim - printed on my MK3S+ without a need for a brim&nbsp;</p><p>PETG on Textured Sheet</p><p>&nbsp;</p><p><strong>Other factors and potential improvements:</strong></p><p>The dowel rod I used is 7/16 x 48 inches (~11 mm x ~122 cm)&nbsp;</p><p>I intended to design this for a dowel rod with a diameter of ½ to ¾ inches (~13 to 19 mm) to prevent flexing. &nbsp;The 7/16 dowel rod flexes when trying to poke buttons on the side of a light fixture. &nbsp;When I was buying dowel rods at my local hardware store, the ½ to ¾ inch dowels were only available in length of 24-inch (~61 cm), much too short to be of use. &nbsp;7/16 was the widest dowel I could buy in 48-inch length.</p><p>&nbsp;</p><p>I stand 6-feet (~183 cm) tall and my vertical reach is approximately 92 inches (~233.5 cm)</p><p>The dowel rod and poker add 4-feet (~122 cm) to my vertical reach for a total of ~140 inches (355.5 cm).</p><p>YMMV for total vertical reach depending on your height and the length of the dowel rod used.</p>