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

Everyone is empowered to fix things at sudoroom! that's the idea - you get sudo permissions and you can use them to make things better! But with great power comes great responsibility. Last night Kent and I took apart the duct-taped mess that was the laser cutter ventilation fan (on the ground level) and spent hours constructing a replacement furniture for the fan (instead of the random metal cart) but more importantly, we went on the roof and discovered that the wooden plate that was supposed to seal the duct against the hole in the skylight had fallen, and was leaving a huge gap inside the building. So all the fumes being extracted were free to fall back into the room. That has been corrected. Kent had to dremel through screws on the roof to remove the duct lid (we put them back) and we removed a baffle plate that was obstructing airflow. to replace the duct tape that had been connecting the 8" duct to the 6" exhaust fan outlet, the following shape was 3D printed in PLA: https://sudoroom.org/mediawiki/images/3/3e/Laserduct.png the next step is for SOMEONE (not me) to peel the 3D printed adaptor off of the printer (I did not stay to watch it finish) and install it onto the outlet of the exhaust fan, and then attach the exhaust duct to the adaptor using appropriate means (depending on how well it fits) i guess it ran out of filament before it finished but there should be enough there to make it work: https://www.spaz.org/~jake/pix/sudo/laserduct.png also, there are many gaps in the laser cutter (you can see through to the floor from inside the compartment) and the aluminum foil tape in the bin on top of the cutter would be ideal for sealing as many gaps and openings as possible to minimize smoke getting into the room. SOMEONE should do this! (not me) And if i haven't said this enough times yet: if you want to laser cut something, send an email ahead of time letting people know when you would like to do it to make sure nobody is taken by surprise, until we know that the ventilation is sufficient not to disrupt other activities - even the sound of the laser exhaust can be disruptive, so ideally we do laser cutting at a time when everyone present has at least been warned of what to expect. Laser cutting fridays anyone??? -jake On Mon, 13 Jun 2022, Arthur Ulfeldt via sudo-discuss wrote: > I'm fairly uncomfortable with this as the consensus, because it sounds >like > "nobody use this till some unspecified person does unspecified things, >and > does them well enough to satisfy some unspecified person" > > I don't feel excited at the idea of trying to do that, so the natural > conclusion is, i will wait to see if this changes someday. > > So my question to the group is, > > Who is going to do the next thing? > > > > On Sun, Jun 12, 2022 at 11:47 PM Arthur Ulfeldt <arthur(a)ulfeldt.com> >wrote: > >> 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 <mfburdett(a)gmail.com>

>> >>> 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 <arikalinowski(a)gmail.com>

>>>>>>> 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 &gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&lt;arikalinowski(a)gmail.com&gt;t;<arikalinowski@gmail.com>: >>>>>>>>> >>>>>>>>>> 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 &gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&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

>>>>>>>>>>>>>> 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 >>>>>>>>>>>>>> >>>>>>>>>>>>>>

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>>>>>>>>>>>>>oom.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

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