Pleasant Permanent Pullup Bar

prusaprinters

<p><strong>Requires:</strong></p><ol><li>One 42mm diameter pine dowel(length to preference).&nbsp;</li><li>Two 3D printed wall brackets.</li><li>Two 3D printed pole endcaps.</li><li>Six 10g 45mm, self-embedding timber screws.</li></ol><p>&nbsp;</p><p><strong>Installation:</strong></p><ol><li>Brackets:<ol><li>Pre-drill timber screws through PLA slowly to help prevent cracking.</li><li>When the screw tip is exposed through the bracket hole, align to desired position and screw through.</li><li>Install one bracket, then use tape or laser level to mark out position of second.</li></ol></li><li>Pole:<ol><li>Buy pole so oversized in length.</li><li>Screw in one endcap.</li><li>Place pole in position, then measure and cut required length, leaving 5mm for second endcap.</li><li>Install endcap. Add small strips of cardboard underneath endcap if accidentally cut undersize (no one will ever know!)</li></ol></li><li>Assembly:<ol><li>Bar should fit into place.</li></ol></li></ol><p><strong>Printing:</strong></p><p>See 3MF for my settings, both brackets holding 80kg in my case without flexing. PLA was used due to not having a heated chamber. Using PETG or ASA will improve impact toughness and crack resistance during installation.</p><p><strong>Failure mechanism:</strong></p><p>First point of failure is the bracket screw holes, which will crack vertically due to print position if overstressed from too-large screws during installation. However, the brackets still supported 80kg in my case, making them "fail-safe" - you'll probably see any cracks before the bracket completely gives out. Use common sense to avoid injury, listed weights are specific to my installation and should be tested before using.</p><p>&nbsp;</p>