Posts by sophistoche@tootplanet.space
(DIR) Post #9pK0tKVCZjZF8F1HIu by sophistoche@tootplanet.space
2019-11-25T08:11:12Z
4 likes, 4 repeats
Tell me this isn’t some seriously sexy cable porn here. Done by Siemens in the early 70s for the original concert hall house lights. Long defunct.
(DIR) Post #9pK5xdxKgju6Ob3P7o by sophistoche@tootplanet.space
2019-11-25T08:14:43Z
1 likes, 0 repeats
They seem to have had separate heating filaments and dimmed filaments, hence the doubled fuses and brown-grey-red active wiring? Here’s the key mounted inside the cabinet door.
(DIR) Post #9pK5xeDdi6wpDAgQXg by sophistoche@tootplanet.space
2019-11-25T08:17:21Z
0 likes, 0 repeats
Oh I didn’t read properly! Not house lights at all but fluorescent lighting I think downlighting the walls around the outside edge of the hall.
(DIR) Post #9pK5xeSAq4ZdwFU2CG by sophistoche@tootplanet.space
2019-11-25T08:18:55Z
0 likes, 0 repeats
In that case, probably still completely live and in use! I didn’t get out my non-contact tester, but I should have (though of course I wasn’t touching anything)
(DIR) Post #9pK5xeh3wiU2gQRvP6 by sophistoche@tootplanet.space
2019-11-25T13:49:48Z
4 likes, 3 repeats
Adding to the cable porn, for @eater - terminal blocks inside of one of the two cabinets for one of the patch bays in the drama theatre. 360 5kW patch leads across two sides and 135 doubled 5kW dimmer/relay channel outlets (themselves being terminated inside their own cabinet into more multicore runs to a dimmer room 40m away).
(DIR) Post #9pekQolKaNASo2VLuq by sophistoche@tootplanet.space
2019-12-05T12:36:48Z
0 likes, 0 repeats
You know what is a goal I never knew I had until right now? I want to run an underground queer cinema. Hard drive space is cheap and torrents are good. Everybody come round to my place, chip in a few bucks to pay for the projector and speakers. Queer films, anarchist films, foreign films, hollywood films, TV show marathons, whatever. Subtitles and audio description whenever anyone wants. Wouldn’t that be sick?
(DIR) Post #9ps92xM4IO106V9dSq by sophistoche@tootplanet.space
2019-12-12T00:00:36Z
0 likes, 1 repeats
@Absolutely_Blakely we’re streamlining operations by just giving governments, police forces and advertisers access to all our databases through a new API, for a fee. Is that an ad being targeted at you, or a pseudomilitary death squad? Who knows!
(DIR) Post #9px0PMrNNKrKWU94SG by sophistoche@tootplanet.space
2019-12-14T07:37:55Z
1 likes, 2 repeats
I’ve never seen such big e-ink displays before! About 500x220mm display, no seams. Saw some similar but tiny ones in Christchurch NZ when I visited, but these are tonnes bigger and always operating. Will be interesting to see what the longevity & reliability are like.They’re powered by a solar panel on top of the pole.
(DIR) Post #9pyAiIVYyNgREBZFTc by sophistoche@tootplanet.space
2019-12-14T22:31:06Z
1 likes, 0 repeats
The new Sydney metro accelerates and brakes astonishingly fast in the north west part with bigger distance between stations. Interesting to note because of this there’s not one but three ~15mm dia catenary feedlines above the contact wire (the third clearly added more recently), at least close to stations, for the massive load when accelerating and regenerative braking.Sydney uses 1500V DC instead of 25kV AC so there’s a *lot* of copper mass up there.
(DIR) Post #9qFtejpdKCJpzoztQ0 by sophistoche@tootplanet.space
2019-12-23T11:21:28Z
0 likes, 0 repeats
Can I get a HELL FUCKN YIKES from the back for this package containing ONE POINT FIVE KILOS OF LITHIUM BATTERIES, packaged shockingly loosely (I honestly thought they’d be better), with a SHARP HOLE PUNCHED THROUGH 2/3 OF THE LAYERS OF PACKAGING DURING SHIPPING #making
(DIR) Post #9qSZJe0DaHqvUEluLY by sophistoche@tootplanet.space
2019-12-29T08:49:13Z
2 likes, 0 repeats
Today I got a call from a friend/colleague needing my help urgently in dealing with ArtNet/DMX controlled pixel lights for a show he’s working on. I spent an hour on the phone and then a few hours onsite trying to debug the terribly designed controller software and hardware with zero documentation. In the end I was able to find a solution to just chuck out the controller and use DMX nodes with adapter cables. Yay for being the ‘guru who magically fixes things’ 😄 #theatrelighting
(DIR) Post #9qSZJeajOX3lJTr4G8 by sophistoche@tootplanet.space
2019-12-29T12:37:22Z
2 likes, 1 repeats
I neglected to mention how cursed these pixel lights are. They take a DMX signal... but only one side of it. RS-485, but ground referenced and throwing out the differential part. What could possibly go wrong.(I’m planning to add terminating resistors in the cable converting to single-ended in the hope it’ll prevent ringing but who knows if unbalanced driver load will cause further issues)
(DIR) Post #9qWTi2TyOj8nGcmJRA by sophistoche@tootplanet.space
2019-12-31T09:11:56Z
1 likes, 0 repeats
NYE Opera Gala followspotting selfie :)
(DIR) Post #9qXuh7CgFdmRXYQwfw by sophistoche@tootplanet.space
2019-12-30T22:42:20Z
0 likes, 0 repeats
Im working 44 hours in 4 days over New Years. I think this will be a new record for me.
(DIR) Post #9qenI3FcTEnYT9d5HM by sophistoche@tootplanet.space
2020-01-04T12:02:02Z
1 likes, 0 repeats
Princess the 3D printer has been updated to all TMC2208 Trinamic silent stepper drivers! Unfortunately while cleaning the nozzle, I broke the NTC thermistor, so no test prints for me until I get a new one :( #making
(DIR) Post #9qmhEhUyKNzVEJFYsi by sophistoche@tootplanet.space
2020-01-08T03:03:14Z
1 likes, 0 repeats
Wow I haven’t been active much recently. Here’s a pic from the new venue! #theatrelighting
(DIR) Post #9qwursjwU7HbwF5c4e by sophistoche@tootplanet.space
2020-01-13T05:36:21Z
0 likes, 0 repeats
@cypnk @msh a partial reason is that America uses thin flat pins, not round or rectangular ones. It’s much harder to fit most things in those - Aus/NZ socket design uses flat pins too and mostly doesn’t have A/N covers. We do however have much stricter laws on electrical wiring (you must be a trained electrician to do *any* mains work whatsoever by law, devices in non-residential places require regular safety testing & tagging, and RCDs are mandatory).
(DIR) Post #9qwurtAAuaGbFbMYxk by sophistoche@tootplanet.space
2020-01-13T05:40:44Z
0 likes, 0 repeats
@cypnk @msh also the electric kettle thing is purely a matter of wattage, not frequency. Aus/European/UK house wiring can all provide 2300-2500W per outlet, so kettles draw close to that. Looking on amazon, a ‘fast boil’ US kettle was listed as only 1500W!
(DIR) Post #9r1lzBJ5vLGlkjjlaa by sophistoche@tootplanet.space
2020-01-15T13:00:26Z
3 likes, 2 repeats
Just found out the largest known structure in the universe is ten billion light years wide, takes up a 120° field of the sky despite being billions of light years from us, is made of a cluster of clusters of neutron star gamma ray plumes, and was named by a Filipino teenager who needed a title for the Wikipedia article about it (when the paper expounding its discovery didn’t offer a name).Cosmology is fucking wild. Props to that kid what a legend
(DIR) Post #9rICGlXeasMAnXJfhQ by sophistoche@tootplanet.space
2020-01-22T14:28:23Z
0 likes, 0 repeats
Spent a productive few hours starting to construct the 13S2P 18650 lithium battery pack for my DIY onewheel project. I’m about halfway through. Crossing fingers the plastic spacers don’t make it too much bigger.Buying the cells with welded tabs was the correct choice I think, they can be soldered easily without heating the cell itself barely at all. I’m also using pre-tinned solar bus strip for the jumping connections, not plain nickel. #making