[sudo-discuss] Re: hello again, & laser cutter concerns

there was a consensus here to fix it. is somebody planning on fixing working on it? i must admit it was one of my reasons for joining... On Sun, Jun 12, 2022, 9:45 PM mark burdett &lt;mfburdett(a)gmail.com&gt; wrote: > I found similarly priced VOC sensors as well. Bosch BME680 is the VOC > sensor component in the latest PurpleAir device. > > --mark B. > > On Sun, Jun 12, 2022, 20:31 Delta Ark &lt;arikalinowski(a)gmail.com&gt; wrote: > >> Also sort of looks like you can get a particle sensor for about $100. >> >> On Sun, Jun 12, 2022 at 8:26 PM Delta Ark &lt;arikalinowski(a)gmail.com&gt; >> wrote: >> >>> So, based on Jake's last email (not sure why it's not on this thread), >>> have we arrived at a temporary moratorium until the laser cutter >>> ventilation system is reinstalled/fixed/revamped? >>> >>> Personally in favor of this, due to the long term health issues >>> improper ventilation can cause. Based on that email, it's sort of sounding >>> like smaller temporary fixes are not working. >>> >>> On Sat, Jun 11, 2022, 8:31 AM mark burdett &lt;mfburdett(a)gmail.com&gt; wrote: >>> >>>> ok, I guess their concern with plastic duct was that particles could >>>> (possibly) cause a build up of static electricity vs a grounded duct. >>>> >>>> It'd be nice to have VOC and particle sensors in the space. >>>> >>>> --mark B. >>>> >>>> >>>> >>>> >>>> >>>> On Fri, Jun 10, 2022, 13:43 Arthur Ulfeldt &lt;arthur(a)ulfeldt.com&gt; wrote: >>>> >>>>> this is a 12 inch plastic duct. it appears to be sufficiently >>>>> attached. the big hole in the side not notwithstanding ;) >>>>> non conductive ducts don't need grounding. >>>>> >>>>> On Fri, Jun 10, 2022 at 1:23 PM mark burdett &lt;mfburdett(a)gmail.com&gt; >>>>> wrote: >>>>> >>>>>> I found some articles online about laser cutter exhaust and it says >>>>>> check the manufacturer's specs to make sure airflow and pressure is >>>>>> maintained (e.g. use 6" duct if it's too long for 4" to do the job). Use >>>>>> aluminum tape not duct tape for sealing the metal duct (i.e. the stuff you >>>>>> see on HVAC systems which is not duct tape, confusingly) - the duct by the >>>>>> way should be grounded. >>>>>> >>>>>> --mark B. >>>>>> >>>>>> On Fri, Jun 10, 2022 at 11:56 AM Arthur Ulfeldt via sudo-discuss < >>>>>> sudo-discuss(a)sudoroom.org&gt; wrote: >>>>>> >>>>>>> I'm reluctant to agree to not work on something until an undefined >>>>>>> condition is met. let's improve this together 😊 >>>>>>> >>>>>>> what does better look like, what does good enough look like? is it >>>>>>> already good enough with the repair from last night? >>>>>>> >>>>>>> fre. 10. jun. 2022 11.37 skrev Delta Ark &lt;arikalinowski(a)gmail.com&gt;om>: >>>>>>> >>>>>>>> I'd love to know what you find/what you make of the venting system >>>>>>>> once you take a look at it, could you update us/me when that happens? >>>>>>>> >>>>>>>> Would it also be possible to have a moratorium on using it until >>>>>>>> the venting is checked out/checked off on? >>>>>>>> >>>>>>>> Again, tried to just accomplish some software work there >>>>>>>> yesterday, but it wasn't really possible... >>>>>>>> >>>>>>>> On Fri, Jun 10, 2022 at 12:10 AM Arthur Ulfeldt < >>>>>>>> arthur(a)ulfeldt.com&gt; wrote: >>>>>>>> >>>>>>>>> next time I'm there I'll try to give the vent a proper fixing if >>>>>>>>> nobody gets to it first. >>>>>>>>> >>>>>>>>> tor. 9. jun. 2022 22.20 skrev Arthur Ulfeldt &lt;arthur(a)ulfeldt.com >>>>>>>>> >: >>>>>>>>> >>>>>>>>>> I arrived at 8:30 and used the laser cutter. (i made a box >>>>>>>>>> yay!). i think i was the second one to use it this evening. before i >>>>>>>>>> started i fixed a big tear in the vent duct with what duct tape i could >>>>>>>>>> find. though i didn't find a roll of it (I'm new here). >>>>>>>>>> >>>>>>>>>> it wasn't too smoky as i was using it, though i could still >>>>>>>>>> smell it. if there's more duct tape applied i think it will do wonders for >>>>>>>>>> the air quality. when i arrived, i suspect nearly all the smoke would have >>>>>>>>>> been going into the room. >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> tor. 9. jun. 2022 21.38 skrev Andrew R Gross via sudo-discuss < >>>>>>>>>> sudo-discuss(a)sudoroom.org&gt;gt;: >>>>>>>>>> >>>>>>>>>>> I agree with your assessment and would like to see sufficient >>>>>>>>>>> ventilation implemented. What is the status of the blowers? What is the >>>>>>>>>>> flow rate of fumes through the duct and out of the building? >>>>>>>>>>> >>>>>>>>>>> *Andrew R Gross, (he/him)* >>>>>>>>>>> 412.657.5332 - shrad.org <http://www.shrad.org> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> On Thu, Jun 9, 2022 at 8:59 PM Delta Ark via sudo-discuss < >>>>>>>>>>> sudo-discuss(a)sudoroom.org&gt; wrote: >>>>>>>>>>> >>>>>>>>>>>> 👋 >>>>>>>>>>>> hi everyone, >>>>>>>>>>>> >>>>>>>>>>>> I'm starting to work at sudo again (after a very long hiatus) >>>>>>>>>>>> (mostly evenings, 6-12, m-f). I'm currently working on some >>>>>>>>>>>> game, ai and architecture stuff, you can see it here: >>>>>>>>>>>> https://www.instagram.com/p/CelEcmAlsaq/ Very pumped to get >>>>>>>>>>>> back in the space and see what people are working on and doing. >>>>>>>>>>>> >>>>>>>>>>>> Nonetheless, I have some concerns about the laser cutter. >>>>>>>>>>>> Today, the laser cutter was being used, and, well, it, to my mind, smelled >>>>>>>>>>>> up sudo pretty significantly. I think you could also even smell out in the >>>>>>>>>>>> hall. I guess what I'd like to know is (a.) can we prevent this somehow? >>>>>>>>>>>> and/or (b.) can we have a laser cutter moratorium until we know why this is >>>>>>>>>>>> happening? >>>>>>>>>>>> >>>>>>>>>>>> I could be wrong, but I believe that improper ventilation of a >>>>>>>>>>>> laser cutter can be both long-term toxic and even short term >>>>>>>>>>>> life-threatening (if someone is cutting something really wacky, which I >>>>>>>>>>>> don't think is what was happening today; I think someone was just cutting >>>>>>>>>>>> wood, hopefully not laminated in any weird way). >>>>>>>>>>>> >>>>>>>>>>>> Anyway, yeah, I have to defer to people smarter than me on the >>>>>>>>>>>> above, but something was off today in the way the machine was working (this >>>>>>>>>>>> was about 6pm); and, personally, I found it kind of spooky. Thanks for your >>>>>>>>>>>> thoughts/help/ideas/etc. >>>>>>>>>>>> >>>>>>>>>>>> Best, >>>>>>>>>>>> AK >>>>>>>>>>>> >>>>>>>>>>>> -- >>>>>>>>>>>> Ari Kalinovski (They/Them) >>>>>>>>>>>> Delta Ark Studios <http://delta.center/> >>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>> sudo-discuss mailing list -- sudo-discuss(a)sudoroom.org >>>>>>>>>>>> To unsubscribe send an email to >>>>>>>>>>>> sudo-discuss-leave(a)sudoroom.org >>>>>>>>>>>> More options at >>>>>>>>>>>> https://sudoroom.org/lists/postorius/lists/sudo-discuss.sudoroom.org/ >>>>>>>>>>>> >>>>>>>>>>> _______________________________________________ >>>>>>>>>>> sudo-discuss mailing list -- sudo-discuss(a)sudoroom.org >>>>>>>>>>> To unsubscribe send an email to sudo-discuss-leave(a)sudoroom.org >>>>>>>>>>> More options at >>>>>>>>>>> https://sudoroom.org/lists/postorius/lists/sudo-discuss.sudoroom.org/ >>>>>>>>>>> >>>>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> Ari Kalinovski (They/Them) >>>>>>>> Delta Ark Studios <http://delta.center/> >>>>>>>> >>>>>>> _______________________________________________ >>>>>>> sudo-discuss mailing list -- sudo-discuss(a)sudoroom.org >>>>>>> To unsubscribe send an email to sudo-discuss-leave(a)sudoroom.org >>>>>>> More options at >>>>>>> https://sudoroom.org/lists/postorius/lists/sudo-discuss.sudoroom.org/ >>>>>>> >>>>>> >> >> -- >> Ari Kalinovski (They/Them) >> Delta Ark Studios <http://delta.center/> >> >