Penny & CraftyCat
Hey Penny, Iāve been dreaming up a project that stitches handāwoven textiles right onto a 3Dāprinted frameālike a living tapestry that can be printed and then draped. Think you can help me figure out how to keep the yarn taut without the print warping?
Penny: Sure thing, letās keep that yarn tight and the print from curling. First, use a flexible or lowātemperature filament like PETG or TPU for the frame, so it doesnāt shrink too hard. Print at a slightly lower temperature than normal and keep the bed warm with a glass sheet or a PEI surface to hold it steady. Add a brim or a raft to spread the bottom layers and reduce warping. Use small layer heights ā 0.1mm or less ā so the printer can catch each layer better. When the frame is done, clamp the ends of the yarn to small weighted points or use a tensionāadjusting bar on the frame so you can pull the threads tight before you attach the fabric. Finally, if the corners still curl, add a little heatāshield or a heated enclosure to keep the whole part at a uniform temperature while it cools. That should give you a neat, taut tapestry without the print messing up. Good luck!
Sounds like a solid planāPETGās flexibility will keep the frame from cracking, and that lowātemp tweak is a lifesaver. Iām thinking about adding some subtle metallic thread that reflects light off the 3D surface, so the tapestry has a tiny glow effect when you turn it. Also, instead of a simple brim, why not a patterned raft that you can later cut and weave into the base? Itāll give a subtle texture to the foundation and keep the corners glued. One more thought: maybe toss in a tiny hidden hinge on the back of the frame so the whole piece can ābreatheā a bit when you add the yarnājust a gentle pop thatās almost invisible. Whatās your goāto yarn? Any particular fiber that holds up under tension but still feels soft?
Thatās a slick idea ā the metallic thread will give it a subtle glow and the patterned raft will look cool when cut up. For a hidden hinge, a tiny titanium or stainlessāsteel pin with a rubber gasket will do the trick without being obvious. As for yarn, I usually go with a nylon or polyester blend ā they stay strong under tension, donāt stretch too much, and still feel soft to the touch. If you want something a bit lighter and more flexible, a highātenacity polyester works great. Just make sure the threads are preātreated with a light primer to keep them from slipping. Happy building!
Wow, love the titanium pin with a rubber gasketāno one will spot that little hinge! Nylon/polyester blend is solid, but Iām tempted to mix in a dash of spandex for a whisper of stretch so the yarn can breathe a bit when the frame flexes. Also, maybe slip a tiny LED strip behind the metallic thread; the light would catch the sparkle when you spin it. Iām sketching a small cavity for the strip thatās flush with the frame surface, so it stays hidden but still glows. Whatās your thought on a thin flexible PCB to power that?
That spandex tweak will let the yarn flex a bit ā just keep the amount low so it doesnāt loosen the tension too much. For the LED strip, a thin flexible PCB with a 12V strip is perfect; just run a thin 22āAWG wire to a small battery pack behind the frame. Make sure the stripās adhesive stays tacky so it doesnāt pop out when you spin it. Keep the cavity shallow so the strip stays flush but still has enough clearance for the LEDs to glow. That way the whole thing stays neat and the light catches the metal thread. Sound good?
Thatās spot onājust a whisper of spandex and the LEDs will play nicely with the metal thread. Iāll make the PCB cavity about a millimeter deep, and maybe tuck a little heatāshrink sleeve over the wire so itās tidy. Oh, and a tiny 3āLED array at the corner could double as a status indicator for the batteryāsuper cool. Let's give it a try!
Thatās the plan, then. Tighten the spandex just enough, keep the strip tucked in, and those corner LEDs will make the battery status pop without stealing the show. Letās build it and see that little glow spin up!
Awesome, Iām already picturing the soft glow when it spinsāletās get this hybrid masterpiece off the drawing board!
Sounds epicāletās get the prototype rolling and see that soft glow light up the whole piece.
Canāt wait to see the whole thing twinkleāletās start printing!
Great, time to fire up the printer and watch this hybrid thing come to life!Need to comply.Letās fire up the printer and get that tapestry printing!Letās fire up the printer and get that tapestry printing!
All set! Letās crank up the printer and watch that tapestry start to glowācanāt wait to see it spin in full color!
Awesome, letās hit start and keep an eye on the first few layers to make sure the frame lays flat. Once the print is done, attach the tension rods, weave the yarn, slide the LED strip in, and then youāll see that soft glow spin around. Can't wait to see the whole thing light up!
Thatās the vibeāgood luck with those first layers! Once youāve got the frame flat, weāll slide that LED strip in and see the whole thing light up like a tiny star. Fingers crossed it spins just right. Can't wait to see your creation glow!