Lightnews — Scholar-powered news

Felix Wechsler @felixwechsler.bsky.social · Jul 21

The vial is filled with a bio-resin (Gel-Ma, gelatine based hydrogels). We polyermize then everything except the channel. The channel we wash out, and then we can pump the blue color through.

1 1

Felix Wechsler @felixwechsler.bsky.social · Jul 21

This work was in collaboration with my lab LAPD at EPFL and @wjakob.bsky.social, @bathal.bsky.social from EPFL and NVIDIA

1

Felix Wechsler @felixwechsler.bsky.social · Jul 21

Our microprojector on the LED.

Felix Wechsler @felixwechsler.bsky.social · Jul 21

In this experiment we print over balls at arbitrary locations within minutes.

Felix Wechsler @felixwechsler.bsky.social · Jul 21

Link to paper: arxiv.org/abs/2507.13842
Link to Dr.TVAM: github.com/rgl-epfl/drt...
Link to configuration files: github.com/EPFL-LAPD/Ov...

Felix Wechsler @felixwechsler.bsky.social · Jul 21

Some of our experiments are:
- Printing micro-fluidic channels around existing inlets in a square vial.
- Fabricating a custom lens directly onto an LED, turning it into a micro-projector
- Detecting spheres at arbitrary locations and printing over them within minutes.

Felix Wechsler @felixwechsler.bsky.social · Jul 21

Our solution, based on the physics-based renderer Mitsuba, allows Dr.TVAM to predict and compensate for these optical effects, ensuring precision.

2

Felix Wechsler @felixwechsler.bsky.social · Jul 21

In our recent work, we showcase five overprinting scenarios using our open-source software, Dr.TVAM. The main challenge with printing around an object is that it distorts the light used to cure the resin.

1

Felix Wechsler @felixwechsler.bsky.social · Jul 21

𝐎𝐯𝐞𝐫𝐩𝐫𝐢𝐧𝐭𝐢𝐧𝐠 𝐰𝐢𝐭𝐡 𝐓𝐨𝐦𝐨𝐠𝐫𝐚𝐩𝐡𝐢𝐜 𝐕𝐨𝐥𝐮𝐦𝐞𝐭𝐫𝐢𝐜 𝐀𝐝𝐝𝐢𝐭𝐢𝐯𝐞 𝐌𝐚𝐧𝐮𝐟𝐚𝐜𝐭𝐮𝐫𝐢𝐧𝐠

Imagine 3D printing directly onto an object that already exists.

With Tomographic Volumetric Additive Manufacturing (TVAM), we can now print over existing components, opening up a world of possibilities for multi-component devices.

5 3 10

Felix Wechsler @felixwechsler.bsky.social · Apr 14

In fact EPFL allows Thunderbird for Android.

So only Outlook, Apple Mail, Google Mail and Thunderbird are supported on Android.

See here: www.epfl.ch/campus/servi...

Configurations and access

Services et ressources

www.epfl.ch

Felix Wechsler @felixwechsler.bsky.social · Apr 10

Lol the pays to link is clearly an accident

Felix Wechsler @felixwechsler.bsky.social · Apr 10

EPFL is fully migrating to Exchange Online without IMAP support?

Outlook or Google Mail are the only supported mail clients on Android.

Why are big universities not promoting open source and free alternatives anymore?

Also, what's the amount of money EPFL pays to MS...

@icepfl.bsky.social

pays.to

1 1

Felix Wechsler @felixwechsler.bsky.social · Apr 9

@researchgate.bsky.social is practically unusable at EPFL's network because of "high traffic" (surprise at an academic institution)

Ending up in a loop of "verify" and login.

1

Felix Wechsler @felixwechsler.bsky.social · Mar 3

I need to test a potentially broken DDR 5 RAM stick. Not sure if it's my mainboard or the RAM.

Anyone EPFL (@icepfl.bsky.social, @epfl-ai-center.bsky.social , ...) can provide me access to theirs to test my RAM?

None of the IT helpdesks (STI, BC, Poseidon) could reasonably help me.

1

Felix Wechsler @felixwechsler.bsky.social · Dec 31

Also now I noticed over the University order we can't access any information or status of our order.
And, Thorlabs also doesn't send you emails to keep you updated.
No reply from customer support either so far.

Felix Wechsler @felixwechsler.bsky.social · Dec 31

Anyone else having huge troubles with @thorlabs.bsky.social orders recently?
We ordered mid of November. Some shipments arrived (but parts are missing even though indicated on the deliver note).
Also, some other items haven't arrived yet even though Thorlabs promised shipping beginning of December.

1

Felix Wechsler @felixwechsler.bsky.social · Dec 15

So is yo.mom :(

yo.mom

1 1

Reposted by Felix Wechsler

Wenzel Jakob @wjakob.bsky.social · Nov 22

My team RGL is looking for new PhD students starting 2025. If you are excited about topics like inverse rendering, compilers for graphics, and physically based modeling then please join us at EPFL. Info about the lab & admission process: rgl.epfl.ch/pages/jobs (Deadline: Dec 15)

23 46

Felix Wechsler @felixwechsler.bsky.social · Nov 28

There is this nice work "A review of materials used in tomographic volumetric additive manufacturing" from Jorge Madrid-Wolff et al.

But do not hesitate to reach out to me if you are looking for something specifically to print!

1

Felix Wechsler @felixwechsler.bsky.social · Nov 28

There is published work around printing ceramics, optical elements, organoids (bio printing). TVAM is incredible flexible.

As long as the material is relatively transparent, many things can be done. Ceramics for example need certain postprocessing steps.

1

Reposted by Felix Wechsler