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

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 &lt;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&gt;om>: >>>>> >>>>>> 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/ >>> >>