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Hack Chat Transcript, Part 4

A event log for Low-Cost Nanopositioning Hack Chat

The world's getting smaller

dan-maloneyDan Maloney 06/15/2022 at 21:320 Comments

Edwin Hwu1:25 PM

Edwin Hwu1:25 PM
I made this 100x100 mm nanopositioner is also for high resolution cell monitoring

Edwin Hwu1:26 PM
with auto focusing function

placethesundontshine1:27 PM
what is the minimal repeatable positional accuracy you get with that?

Prof. Jim Brenner1:27 PM
Very nice on the nanopositioner for high resolution cell monitoring! Are you familiar with the LabSmith version of that?

Edwin Hwu1:27 PM
I didn't use interferometer to compare on this system...but I have other in another system.... let me find it

Edwin Hwu1:28 PM
LabSmith? no....sorry :)

James Finch1:29 PM
@Edwin Hwu :-) I've been wondering over the years if there are parts available in the HD and disc players to make a maybe Michelson or other interferometer design based non-destructive sample NIR-Vis-UV spectrometer. Also, regarding previous linear CCD... more for destructive sample LIBS work.

Edwin Hwu1:29 PM

Edwin Hwu1:29 PM
This is the comparsion between MicroE encoder and interferometer

Edwin Hwu1:29 PM

https://www.researchgate.net/profile/Edwin-Hwu/publication/323946198_Design_and_characterization_of_a_compact_nano-positioning_system_for_a_portable_transmission_x-ray_microscope_Design_and_characterization_of_a_compact_nano-positioning_system_for_a_portable_transmissi/links/5ab41b23a6fdcc1bc0c3f7db/Design-and-characterization-of-a-compact-nano-positioning-system-for-a-portable-transmission-x-ray-microscope-Design-and-characterization-of-a-compact-nano-positioning-system-for-a-portable-transmissi.pdf

Edwin Hwu1:30 PM
@James Finch I need to study the system you mentioned ;)

Nathaniel@quub.space1:30 PM
Hi! I'm with quub, a pico-sat startup. Scrolling through the past messages, looks like these techniques will be perfect for some of our ideas 😎

Edwin Hwu1:31 PM
@Nathaniel@quub.space do you have website? :)

Edwin Hwu1:32 PM
cool! pico satellite...

Prof. Jim Brenner1:32 PM
LabSmith is a company started several years ago by Kirsten Pace, a former grad student of John Wikswo and Dave Cliffel at Vanderbilt. I was one of the beta testers on their microfluidics education kit. Your microscope looks pretty comparable to theirs. They sell it for around $8000. I think yours is more precise.

Edwin Hwu1:32 PM
I am not sure if the nanopositioner will work in the space...but I guess yes since nikel and iron are different metal ;p

Prof. Jim Brenner1:33 PM
Pico-sat. I am familiar with nanosatellites, but pico!

Edwin Hwu1:33 PM
I think the miniaturized rotary piezo motor can help also ;)

Nathaniel@quub.space1:34 PM
@Edwin Hwu yep! https://www.quub.space/

James Finch1:34 PM
@Edwin Hwu The last work I did before needing the spy cameras and other remote sensing devices..., :-/ ..., was regarding chemometrics, NIR spectroscopy, FTIR microscopy and hyperspectral imaging. Somewhat related to my and other articles in this addition where I did publish while at Perrigo.

https://www.americanlaboratory.com/1413-Issues/37116-October-2008/ I have to go. Thank you for sharing your work! So much wasted resources that can be put to great use! Very thankful you and everyone who is, are sharing your work.

Edwin Hwu1:35 PM
Reminds me that "SpaceBornUnited" conted me to use cell culture disc contain human embryo in to earth orbit

Nathaniel@quub.space1:36 PM
Here's a prototype 2x 3u deployer module we did last week: https://twitter.com/quubspace

These things are TINY

Edwin Hwu1:36 PM
@james welcome :)

Nathaniel@quub.space1:36 PM
https://twitter.com/quubspace/status/1530220321382473729/photo/1 ** :)

Edwin Hwu1:37 PM
cool! :D

Prof. Jim Brenner1:39 PM
Finding out about the microE encoder by itself made today worth it. We need to collaborate more often. It was a pleasure meeting you @Edwin Hwu!

Edwin Hwu1:40 PM
@Prof. Jim Brenner same here! :D

Edwin Hwu1:43 PM
Actually i am also into micro/nanoscale 3D printing

Joe Latrell1:43 PM
Cool! nano printing is going to be a major revolution.

Edwin Hwu1:44 PM

https://www.youtube.com/watch?v=0FxJJHBqJ0U

YOUTUBE EDWIN HWU

Edwin Hwu1:44 PM
Using nanopositioner + Blu-ray optics...

placethesundontshine1:44 PM
Is atto3D actually available?

Edwin Hwu1:45 PM
not yet...they are prestartup...recently we are applying for 1.5M DKK funding ...

placethesundontshine1:45 PM
and what was the resolution

Prof. Jim Brenner1:45 PM
Hopefully this and its links will help you with your teaching: https://www.engineeringunleashed.com/card/2167. I have a lot more, but that is a good gateway.

Edwin Hwu1:46 PM
The resolution is 6xx nm in XY, micron in Z...hah

placethesundontshine1:46 PM
That was done with the xbox head right?

Edwin Hwu1:46 PM

Edwin Hwu1:47 PM
so I can access if I register right? :)

Prof. Jim Brenner1:47 PM
That resolution is probably good enough for bioprinting. 30 microns is not really good enough, but one micron probably is.

Prof. Jim Brenner1:47 PM
Just register with KEEN.

Edwin Hwu1:47 PM
okok! Thanks!

Edwin Hwu1:48 PM
Atto3D is mainly for Danish hearing aid industry....they found out the commercial system has 30+um resolution...not enough for small parts

Prof. Jim Brenner1:48 PM
Sorry, engineeringunleashed.com is the web site for the Kern Entrepreneurial Engineering Network (KEEN). I am one of their community catalysts and am largely in charge of their making initiative.

Prof. Jim Brenner1:48 PM
KEEN is basically the funding for my teaching initiative, including the maker education textbook.

Edwin Hwu1:48 PM
@Prof. Jim Brenner thanks a lot :D

Edwin Hwu1:49 PM
@Prof. Jim Brenner so you have many students interested in your course, cool! then we have manpower ;p

Prof. Jim Brenner1:52 PM
Thank you! I only have 10 students in my making class in the summer because it is summer. I teach around 40 in my materials characterization lab, 60 in my nanotech lecture, and usually around 60 in my Basics of Making class. I offer these classes on a 2-year rotation. https://fit.instructure.com/courses/265730/files - Go to Basics of Making near the top, and then all of the folders that start with M or N are for the other courses.

Edwin Hwu1:52 PM

Edwin Hwu1:52 PM
haha...I will try another name

Prof. Jim Brenner1:53 PM
Try "Other" for affiliation with regard to KEEN.

Edwin Hwu1:53 PM
okok!

placethesundontshine1:54 PM
Other than the 7 axis unit have you looked at any other projects in nano assembly?

Prof. Jim Brenner1:55 PM
Did "Other" actually work? If not, e-mail either Becky Benishek (bbenishek@engineeringunleashed.com) or Michael Johnson (mjohnson@engineeringunleashed.com), and we'll get you in there. What you have done with spinning your inventions off as a small business is exactly what this site is interested in.

Edwin Hwu1:55 PM
@placethesundontshine yep, I have 18 axes 6 probes probing station

Edwin Hwu1:55 PM

Edwin Hwu1:55 PM
I'm in!

Edwin Hwu1:55 PM

https://www.youtube.com/watch?v=HgcChFSLu80

YOUTUBE EDWIN HWU

Prof. Jim Brenner1:55 PM
It looks like you are in to KEEN.

Edwin Hwu1:56 PM

https://www.youtube.com/watch?v=LFEBZuy0R-w

YOUTUBE EDWIN HWU

Edwin Hwu1:57 PM
I like engineering....not basic science....it's boring to see atoms jumping ;p

placethesundontshine1:57 PM
very interesting is that probing or are you actually manipulating devices with that unit?

Joachim Fischer1:57 PM
@Edwin Hwu thanks for your input. I'm looking forward to see the rotary actuator being published/open-source!!

Joachim Fischer1:58 PM
I have to leave

Edwin Hwu1:58 PM
Welcome! :)

Edwin Hwu1:58 PM
@placethesundontshine that's a system planning for TSMC ;p

placethesundontshine2:00 PM
hmmmm my interest is in photonics assembly but have much smaller pockets than TSMC

Edwin Hwu2:00 PM
haha....since I open source them in the paper...you can build one at low cost

Prof. Jim Brenner2:01 PM
Approximately how much did it cost to make the cell culture bioreactor with the microscopy (time and Euros)?

Edwin Hwu2:01 PM
I may teach design and build cours in DTU next year....the KEEN could be very helpful :D

Edwin Hwu2:01 PM

Edwin Hwu2:02 PM

Edwin Hwu2:02 PM
109 Euro ;p

Edwin Hwu2:02 PM

Edwin Hwu2:03 PM
still writing....I am using nanopositioner template

Edwin Hwu2:03 PM
@Prof. Jim Brenner let's keep in contact! I need to run!

W5VO2:03 PM
Those micromanipulators are really cool!

Edwin Hwu2:03 PM
Buy everyone! :)

placethesundontshine2:03 PM
Thanks @Edwin Hwu

Prof. Jim Brenner2:04 PM
https://engineeringunleashed.com/card/1791 for The Design Process. I am editing my Canvas course site that I sent earlier to include more detail on how to guide the design projects. Teaching the skills and the mindset are not all that difficult for a maker, but managing the projects is a challenge!

Prof. Jim Brenner2:04 PM
I enjoyed meeting you @Edwin Hwu

Edwin Hwu2:04 PM
you can find me on hackaday as well :)

Jørgen Kragh Jakobsen2:13 PM
Hi Edwin - Any chance to see your stuff in action out at

DTU?

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