A #3Dprinted nesting façade by our researchers offers shelter for birds and hedgehogs while improving #indoorclimate—made from local, partly #recycledmaterials Watch the segment on München. TV to learn more: http://go.tum.de/130029

iStock/Pedro_Turrini

#OpenSource tubing-free #impeller #pump platform for controlled recirculating #fluid flow for #microfluidics & organs-on-chip:

- customizable pump & #3Dprinted chip geometry
- fluid velocities: µm/s to mm/s
- #cell culture incubator compatible

https://doi.org/10.1016/j.ohx.2025.e00673
#DIYbio #lab #instruments

An #OpenSource #automated liquid handler from a #3Dprinter:

- made from an #Ender3 Pro
- #printing & #pipetting mode reversible
- unfortunately: fixed pipetting volume -> #education
- cost ~US $325

https://doi.org/10.1021/acs.jchemed.3c00855
#DIYbio #lab #3Dprinted #ALH #MINT #STEM #EDU #instruments

All of the parts for #R2D2 have been #3Dprinted. 177 individual pieces. Some are dry assembled in place. Next, glue all, and assemble the electronics. #3Dprinting #StarWars #droid #astromech #astrodroid #bambulabs

From: @DavidBFox
https://mastodon.gamedev.place/@DavidBFox/114848365669390875

On-site construction of a portable #OpenSource point-of-care low-field #MRI system in #Africa:

- 50 mT #Halbach #magnet
- #3Dprinted & #CNC -milled parts
- #MaRCoS / #RedPitaya #SDRlab / #FPGA -control

https://doi.org/10.1002/nbm.4917
#DIYbio #lab #magnetic #resonance #instruments #NMR #PoC #medicine

#OpenSource #syringe #pump library:

- #3Dprinted & off the shelf parts
- #RaspberryPi -control

https://doi.org/10.1371/journal.pone.0107216
#DIYbio #DIYtech #DIYchem #chemistry #lab #instruments

New YouTube video Tuesday! It's a reversible two-omni-wheel omni-directional bike!

I bought a pair of three-blade coax stripping tools because I want to make more of my own cables for #HamRadio. However, the insert style that came with them is only for RG58 and RG59. So I pulled out #FreeCAD and calipers, modeled a blank, then cloned the blank and made a version with cutouts sized for cutting RG316 and RG400, and now I'm #3DPrinting it. I don't think the design will actually work for both cable types without adjustment by just swapping the unit upside down, though. I'm expecting to have to adjust it each time I swap it.

Or... just print two and put one in each stripper. They aren't super expensive at ~$8/unit, so buying another pair and designing and printing a few more of these adapters at ~3g of plastic each, one for each type of cable I actually use, makes sense. I can use the label maker for each cable stripper to know what kind of coax it is intended for. Then I can leave the blades adjusted for each type. I can even keep each stripping tool with my stash of that cable type!

I'm expecting to have to file these blocks to fit, because I won't get tight inside corners in the print. Speaking as a hobby machinist, I'm OK with that, I have to file metal parts after I make them, too!

But first, I may need to experiment to get the right angle for the seat that holds the wire. The correct angle for the injection molded part that shipped with the tools might not be the correct angle for something that is #3DPrinted, so I might have to iterate a few times. That's OK, it's about 3g per unit.

After I have it working, I do of course plan to share the model. As always, the original FreeCAD files as well as the rendered files for printing.

A modular hand-held #OpenSource #fluorescent #camera unit for #wound #imaging:

-custom #3Dprinted housing
-based on #RaspberryPi & #ArduCam 21MP
-3 independent #LED channels

https://doi.org/10.1038/s42003-025-08423-y
#DIYbio #lab #instruments #fluorescence #microscope #microscopy #NO #pH #ML

#FluoroBox: A #3Dprinted portable #smartphone-based #OpenSource #fluorescence #spectrometer: Universal design for #DIY experiments in #education:
https://doi.org/10.1021/acs.jchemed.4c01173
#DIYbio #DIYchem #chemistry #lab #instruments #MINT #STEM #teaching #school #Schule

I got it final. The Compact Cassette Case replacement for all the broken ones in my collection is now available at Printables
"https://www.printables.com/model/1341859-compact-cassette-case-replacement"

#MSLASpheroidStamp: #OpenSource 3D #cell #spheroids for everyone:

-#3Dprinted molds/stamps
-time-lapse #confocal #microscopy of spheroids
-#cytotoxicity screens

Preprint: https://doi.org/10.1101/2024.05.12.593682
GitHub: https://github.com/arteys/MSLASpheroidStamp
#DIYbio #lab #instruments #MSLA #3Dprinting #bioprinting #imaging

#OpenIDS: An #OpenSource, #3Dprinted, #Arduino- & #RasPi-controlled inkjet #DNA #microarray synthesizer:

-phosphoramidite #chemistry
-Si wafer substrate
-#GUI control & #camera monitored

Paper: https://doi.org/10.1038/s41598-024-53944-x
GitHub: https://github.com/regiregire/OpenIDS
#DIYbio #DIYchem #lab #instruments #Python

The cups made of PVC pipe break leafs of lettuces. I'll replace them with a rounded-edge, #vaseMode #3dprinted net cups. They fit a 110 mm pipes #VerticalGarden. Let me know if there's anyone interested with the #STL or .scad files.

One of my recent projects has been creating a #solar powered #aeroponics (similar to #hydroponics) 3D printed vertical tower #garden.

It uses a popular modular #3dprinted tower design where water is pumped up a central column and allowed to cascade down over the roots of the growing plants.

Usually people attach their towers to mains but I wanted to make it solar powered and also report data back to my home #grafana dashboard.

Finally got round to documenting the progress - https://git.solarcene.community/smallsolar/VerticalGarden

#FLUID: An #OpenSource #3Dprinted #Arduino-controlled #synthesis #robot - Hardware & software blueprints for accessible #automation in #materials #science:

#NOpenAccess paper: https://doi.org/10.1021/acsaenm.5c00084
#DIYbio #DIYchem #chemistry #lab #instruments

Upgraded my #3dprinted 7-segment clock using translucent #prusa PETG (previously using white PLA). Now it lets a LOT more light through which unfortunately means we have some hotspots where the LEDs are, but in person it looks kinda like a Nixie display! Definitely much clearer and easier to read.

Finished building my new hardwired split mechanical keyboard this weekend! #3dprinted based on my own design, spray painted and powered by a pair of Raspberry Pi Pico W’s. Of course, it’s running my fave #keyboard firmware #KMK! Sadly #CircuitPython doesn’t yet support BLE on the PicoW so it’s not wireless yet, but I’m just counting down the days!

(more details in the image alt text!)