| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| mathew | "thanks Richard! I'll try the new files soon. I'm excited to contribute some mounting files to the project and a carrying case. Will get on those in..." | Read more » | almost 8 years ago | |||
| richardbowman | "Hey, nice work :) I have also had problems with the legs getting detached during printing, and discovered there was a bug in my OpenSCAD code - it..." | Read more » | almost 8 years ago | |||
| kevinvivergy | "Thanks @drapoli! Yeah, when I built this thing I had not heard of Purple Air, I am really interested to learn more about it. The AQMD site has done..." | Read more » | about 8 years ago | |||
| drapoli | "Great discussion and a lot of good ideas. The AQ-SPEC group (www.aqmd.gov/aq-spec) has published results on several PM sensors other than the Dylos..." | Read more » | about 8 years ago | |||
| mathew | "Followup on automating this process https://publiclab.org/notes/SimonPyle/05-13-2016/automating-imagej-for-particle-image-analysis " | Read more » | about 8 years ago | |||
| mathew | "Although we are hopeful that Simon's strategies listed here can get us to a particle count, If they aren't sufficient Rongjun Qin recommended we lo..." | Read more » | about 8 years ago | |||
| mathew | "You can get the analysis spreadsheet here: https://docs.google.com/spreadsheets/d/1xSVT9lxary0zZhhEqhrX3hsdIb4shbYhaOJx_RWhESg/edit#gid=0 " | Read more » | about 8 years ago | |||
| mathew | "That's a great writeup! thanks Simon. If anyone needs an image set to play with, please e-mail me, and I can share the files. They're too large t..." | Read more » | about 8 years ago | |||
| tonyc | "I'd like to do a screencap to show just how smooth this movement is. This is so cool to see in action. Exciting to see it built from plans to deplo..." | Read more » | about 8 years ago | |||
| mathew | "oh yes! please read our wiki on frac sand and PM, its getting pretty fleshed out: https://publiclab.org/wiki/frac-sand follow notes as they happen..." | Read more » | about 8 years ago | |||
| sara | "Super excited to read about this project, are their more recent notes on how your project's progressing? " | Read more » | about 8 years ago | |||
| mathew | "cool opportunity, @Philrosenberg! you may want to share it out with the Public Lab Air Quality list: http://publiclab.org/lists @Marlokeno: The q..." | Read more » | about 8 years ago | |||
| philrosenberg | "Just in case anyone on here is interested, I work for the Institute of Climate and Atmospheric Science at Leeds Uni. We actually have some of the D..." | Read more » | about 8 years ago | |||
| kevintzoa | "@marlokeno "2] In high humidity, is moisture adhering to a fine/ultra-fine particle?" Good question! At TZOA, we have seen humidity increase the p..." | Read more » | about 8 years ago | |||
| mathew | "@marlokeno material and charge probably matter quite a bit. There are several research projects using the charge of certain particles for detectio..." | Read more » | about 8 years ago | |||
| philrosenberg | "@marlokeno Your questions are very good ones. I do not know the details about this instruments, but I do know details based on research grade equip..." | Read more » | about 8 years ago | |||
| marlokeno | "@mathew- As a follower of this discussion, asking couple questions- First, does electric charge of the particles play a role in dust collection? T..." | Read more » | about 8 years ago | |||
| richardbowman | "Hmm, yeah - getting things to reliably push-fit without crazy excessive force is quite tricky between printers, it could just be that your printer ..." | Read more » | about 8 years ago | |||
| mathew | "Thanks for sharing that, Nicholas. I've started keeping a list of sensor evaluations on the wiki page for optical pm monitors: https://publiclab.o..." | Read more » | about 8 years ago | |||
| mathew | "I was able to get one of the nuts to sit firmly at the bottom, but the other two wouldn't. My print might be a little messy there, I'm not sure. O..." | Read more » | about 8 years ago | |||
| richardbowman | "Super. Oh, and I meant to say - the hexagonal holes are deliberately oversized, they taper down at the end to grip the nut firmly. The idea is yo..." | Read more » | about 8 years ago | |||
| mathew | "Awesome Richard, thanks! The basic mechanism of the rubber bands works flawlessly, the smooth motion is really impressive. I have to post a video..." | Read more » | about 8 years ago | |||
| richardbowman | "Hi Matt, good to hear you got it working :) I have switched to single elastic bands now, and you're right, it does make it much easier. The ins..." | Read more » | about 8 years ago | |||
| kevinvivergy | "Ahhh I see. And it looks like both ways showed that there is a big plume of particulates coming out of the rock quarry that dissipated over the rig..." | Read more » | about 8 years ago |