LR41 to LR44 Battery Adapter #3DThursday #3DPrinting

Featured preview IMG 5052

Shared by morozgrafix on Thingiverse:

Battery adapter to use LR41 in place of LR44.

LR41 is also known as AG3 384 392 192 LR736 L736 GP192 and V36A button battery.
LR44 is also known as AG13 357 L1154 A76 PX76A 303 D303 and D357 button battery.

Battery in my VINCA DCLA-0805 Digital Calipers was dying and I didn’t have any spare replacements. Had a bunch of LR41 on hand from kids LED toys and had to improvise.

Printed in PLA with 0.1mm layer height and about 20% infill. 1mm hole may need some cleaning after printing. When slicing flip the model so the opening is facing up and bigger round area is on the print bed.

Download the files and learn more


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Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

New Guide: Paper Craft Crystal Gems Tutorial #cosplay #stevenuniverse

New tutorial from Erin St. Blaine: create amazing cosplay glowing crystal gems!  From the guide:

Crystal Gems will always save the day!

Create a stunning paper craft crystal from laminated cellophane wrap. Add NeoPixels and watch it sparkle!

We’ve included two different build sizes in this tutorial — one crystal large enough to house a Circuit Playground Express, and one with a single NeoPixel illuminating the crystal. This project can be run from a battery for cosplay applications (the crystal on Gandalf’s staff perhaps?) or plugged in to the wall via USB for a more permanent installation.

We’ve also included a Steven Universe Warp-Pad 3D printable base, so your Crystal Gems can be displayed in style. The possibilities are endless!

We love these gems. They’re easy to make with a few easily found tools. The main ingredient is cellophane gift wrap that’s been run through a laminating machine, which creates a perfect material for paper crafting — stiff enough to hold up but easy to cut with scissors or a utility knife. You can also get fancy and use a vinyl cutting machine to create perfect gems in multiple sizes. 3d print a base, or use the gem in a hanging lamp, or place it on top of your staff for a Gandalf-style cosplay. Such a cool project!

Full tutorial: https://learn.adafruit.com/paper-craft-crystal-gem-lantern

3D printing creates “major advance” for longer life batteries

Scientists from Carnegie Mellon University (CMU) and Missouri University of Science and Technology have applied 3D printing to produce high capacity lithium-ion batteries. Deemed “a major advance in 3D batteries” by the study’s authors, the findings have the potential to transform all portable electronic devices, from smartphones to laptops and games consoles. 3D printing a potential world first […]