1900s style wide curved hair comb

thingiverse

My mom has a 100-year-old hair comb that she treasures, but it's made of celluloid, which means its lifespan is finite. I'm trying to recreate the same shape and style using 3D printing. To get the exact shape as the model comb, all STL files need to be printed flat and then heat-formed in hot water. Check out https://www.instructables.com/id/Thermoforming-3D-Printed-PLA-for-Use-in-Prostethic/ (not mine) for clear instructions on this method. I made two styles: a straight comb and one with a gentle curve to the spine of the comb. There are six STL files: * Hair comb, decorative.stl version 1 with straight bridge * Curved comb.stl version 1 with curved bridge (seen in the photos) * Hair comb, dec v2.stl version 2 (better teeth) with straight bridge * Curvedcombv2.stl version 2 with curved bridge * Curvecombsupport.stl adds a floating brace that needs supports to print. This stays on until the comb is formed, then snaps off. * Curved for sla.stl for SLA printing. Do not use this file for filament prints; it will disintegrate. Version 1 looked great, but my small printer's 6"x6" bed printed too narrowly due to the x and y taper, causing weak points where the fill wasn't complete. I lost about 1.5 cm of teeth due to this issue. On a wider or larger bed, they might print just fine. 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. Update 05-03-2020: Printing test of v2, curved spine. Added photo to show it printing flat. Update 06-03-2020: Test of v2 printed at normal resolution/basic settings works great and seems to need minimal post-processing beyond forming. It does not catch in my hair the way the initial model did. Update 22-03-2020: Added a version of the curved comb that prints with a raised brace to make heat-forming 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!