1900s style wide curved hair comb

prusaprinters

<p>My mom has a 100 year old hair comb that she loves, but it's made of celluloid and that means its useful life is limited. This is my attempt to recreate the same shape and style of comb using 3d printing.<strong>To get the same shape as the model comb, all stl files will print flat and need to be heat formed in hot water</strong>. See <a href="https://www.instructables.com/id/Thermoforming-3D-Printed-PLA-for-Use-in-Prostethic/">https://www.instructables.com/id/Thermoforming-3D-Printed-PLA-for-Use-in-Prostethic/</a> (not mine, just a really nice set of basic instructions) for good, clear instructions on this method.</p> <p>I made 2 styles, a straight comb and one with a gentle curve to the spine of the comb.</p> <p>There are 6 STL files:</p> <ul> <li>hair comb, decorative.stl version 1 with straight bridge</li> <li>Curved comb.stl version 1 with curved bridge (seen in the photos)</li> <li>hair comb, dec v2.stl version 2 (better teeth) with straight bridge</li> <li>Curvedcombv2.stl version 2 with curved bridge</li> <li>curvecombsupport.stl adds a floating brace that needs supports to print. This stays on until the comb is formed, to help keep the teeth in order, then snaps off.</li> <li><p>Curved for sla.stl for SLA printing. DO NOT USE for filament prints. It will disintegrate. Version 1 looked really good, but on my small printer's 6"x6" bed they print much too narrowly to work well due to the x and y taper which caused weak points where the fill wasn't complete. I lost about 1.5 cm of the teeth to this issue. On a wider or generally larger bed, where the comb can print at up to 8" wide, they might print just fine.</p> <p>However, I went ahead and made an updated version of both (v2) with better teeth. I haven't done a test print yet, but I hope it doesn't lose as much or any usable length to the teeth this time.</p> <p>Update 05-3-2020: printing test of v2, curved spine. added photo to show it printing flat.</p> <p>Update 06-03-2020: Test of v2 printed at normal resolution/basic settings works great and seems to need minimal post processing beyond forming. Does not catch in my hair the way the initial model did.</p> <p>Update 22-03-2020 Added a version of the curved comb that prints with a raised brace to make heatforming the comb teeth less unwieldy (enable supports for this version) Also added a vertical version with the heat-formed curves built in for SLA printing, in case anyone wants to try it out. Comment and let me know if you do!</p> <h3>Print Settings</h3> </li> </ul> <p><strong>Printer Brand:</strong></p> <p>XYZprinting</p> <p><p class="detail-setting printer"><strong>Printer: </strong> <div><p>da Vinci mini w</p></div><strong>Rafts:</strong></p> <p>No</p> <p><p class="detail-setting supports"><strong>Supports: </strong> <div><p>Yes</p></div><strong>Resolution:</strong></p> <p>high detail</p> <p><p class="detail-setting infill"><strong>Infill: </strong> <div><p>solid</p></div><br/> <strong>Filament:</strong><br/> AIO Robotics PLA Natural <br/> <p class="detail-setting notes"><strong>Notes: </strong> </p><div><p>Spine of comb is thicker and more robust, teeth are still pretty thin. Prints solid so that it can withstand heat forming without getting too floppy.</p> Tapered teeth on v1 need sanding/coating or they catch in hair<br/> V2 teeth need less finishing<br/> "support" version has a brace that prints in place (needs supports) to improve heatforming of comb teeeth</div></p> <h3> Post-Printing</h3> <p><strong>Needs heat forming to get the curve shown in the printed item photos.</strong></p> <p>To get the same shape as the model comb, all stl files will print flat and need to be heat formed in hot water. See <a href="https://www.instructables.com/id/Thermoforming-3D-Printed-PLA-for-Use-in-Prostethic/">https://www.instructables.com/id/Thermoforming-3D-Printed-PLA-for-Use-in-Prostethic/</a> for good, clear instructions on this method.</p> <p>I shaped my prototype free hand, but if you like you can create a mold from foil to form it over.</p> <p>To get the smoothest possible finish, it needs to be sanded and the teeth should be coated. Clear nailpolish or a resin coating product like XTC3d will work fine as long as the teeth are well sanded first.</p> <h3> How I Designed This</h3> <p>Used Tinkercad for the basic modelling and MatterControl to process it for the curvature I wanted.</p> </p></p></p> Category: Accessories