Truly touchless parametric no-touch tool

prusaprinters

<p>A customizable, parametric 3D design for a \"truly touchless\" no-touch tool, designed to allow opening doors, pushing buttons etc. without coming into direct physical contact with the surfaces. Unlike many tool designs, this tool is \"truly touchless\" in the sense that the tool itself, which potentially could be contaminated with material from the surfaces it touches, is normally hidden in a sleeve and protected from accidental touches by the user.</p> <p>The model is almost totally parametric, so you can change everything - make it taller or wider, change some functionality, use different means of attachment, generate different quality - by changing variables in the SCAD file.</p> <h3>Usage</h3> <p>Use the tool to open doors, push buttons or pick-up objects without touching them with your hand. Extend the tool by pushing the knob with your fingers. See <a href="https://youtu.be/b8Q2DCqatQQ">https://youtu.be/b8Q2DCqatQQ</a> for a usage example.</p> <p>You can lock the tool in its extended state by moving the knob sideways into the diagonal slot. (Note that the version in the video does not have the slot yet.) In daily use, you can attch the tool to your pants, belt or pocket using a lanyard or an extensible \"badge yo-yo\". The end cap has a slot for attaching it.</p> <p>The tool should offer the user some protection against accidental touch infection by means of its design. However, users may want to disinfect it. For disinfection, the tool blade can be rinsed in alcohol or any sterilizing liquid, or wiped off with a suitable substance, depending on your context. If you want to be able to sterilize the tool, make sure to print it with a material that quite literally can take the heat. Common<br/> materials like PLA and PETG are not heat-resistant enough.</p> <h3>Attribution and license</h3> <p>The original idea comes from a non-parametric Fusion 360 design by Elwin Alvarado. Used with permission.</p> <p>The GitHub master repository for this model is<br/> <a href="https://github.com/phrxmd/touchlesstool">https://github.com/phrxmd/touchlesstool</a>. The model is licensed under CC-BY-SA 4.0 International.</p> <h3>Print instructions</h3><p>The model is quite print-friendly in the default configuration. There are no great overhangs or structures that require support - the longest is a 10mm slot in the endcap. The tool sleeve should be printed standing, so it may require some adhesion structures (like a brim or raft). I usually print the sleeve on a raft, and the other structures \"as is\".</p> <p>Recommended print settings are: layer height 0.2, infill 25-30%, infill pattern \"cuboid\" (in Cura) or something similar that gives rigidity in all directions, and whatever temperature and flow settings match your filament.</p> <p>Assembly requires (in the default configuration) the following parts:</p> <ol> <li>Printed tool body (with the hook and central bolt hole)</li> <li>Printed sleeve (with the central slot)</li> <li>Printed endcap</li> <li>Printed bolt</li> <li>Two bolts M3x6 and M3x14 (or minimally longer).</li> <li>Two hex nuts.</li> <li>A rubber band (short-ish is better).</li> <li>Optionally: a lanyard, strap or \"badge yo-yo\" for attaching the tool to your belt or pocket.</li> </ol> <p>See the pictures for assembly instructions.</p> <p>If you don't have a bolt, or prefer glued parts, or want to use a sleeve bolt like in Edwin Alvarado's original design, you can customize this in the SCAD file, which exposes practically all parameters of the model and is quite extensively documented</p>