triac + relay, triac + opto, worth cost benefit analysis i guess
Posted by renesis at 16:01 | permalink | 0 comments
lordpil's blog
prob way easier to source a relay that works than cheap opto triacs
high voltage but its just signal level, really
compared to the load
Posted by renesis at 15:24 | permalink | 0 comments
tekrad: think you just have to lift the gate above the cathode side by some threshold voltage
hmm
yeah i think the opto triac makes it easy because the gate prob needs to see negative voltage to stay on during the negative swing
prob why diacs were used to turn triacs on like 1000 years ago
so yeah i think maybe you have to build a crude audio style amplifier that tracks mains voltage to do it solid state without the opto triac
or a relay would work
Posted by renesis at 15:17 | permalink | 0 comments
opto triacs seem expensive until you realize how much solid state relays are
Posted by renesis at 14:24 | permalink | 0 comments
fuck i should just draw a schematic
tekrad: almost done
Posted by renesis at 13:56 | permalink | 0 comments
looking for schematic
heh, found a directory projects_2006, lots of stuff, not that tho
the boards say 2006
anyway
optotriac side, i have one resistor goes from the gate of the big triac to ground
Posted by renesis at 13:51 | permalink | 0 comments
i can just find the board
sec
neat
found it
i didnt put the opto part on it
and the opto led is being driven by an npn in emitter follow config
i think i did that for no reason other than it was different and it worked, shrug
Posted by renesis at 13:45 | permalink | 0 comments
do some pvc pipe shit
its like 6ft from my 'kitchen'
alternatively i can hang cables from the cieling and do shower curtain from that
that happens a lot faster
drunk girls gonna take that out
just too perfect not to happen
heh, i have to adjust the mounting screw tension to get the cnc's pitch and yaw right, heh
because floated on 1" rubber and cork dampers, top and bottom of the table
Posted by renesis at 13:40 | permalink | 0 comments
some of them are 1/8" one on side and like 1/16" or 1/32" on the other
some of them are just the same
like if you go to sears and want cm youre prob going to end up buying their most expensive tape measure
its gonna have a reel with a hex socket and a tripod and flares and built in boombox
my cnc table finally collapsed
when i was moving, almost killed my drunk friend
or took of his fingers, the folding table legs collapsed
so i put it on a thicker folding table, this one has big square tube bracing
i need to make it a shower curtain rod
Posted by renesis at 13:35 | permalink | 0 comments
blackmoon: its fucked up hard to get a tape measure here thats standard + metric
everything is inches and inches, wtf
my best rape measure is the one i got free at the enco booth at WESTEC years ago =\
most of the ones in hardware stores and lots at industrial supply are just inches
i feel like when i was a kid more of them here were inches/cm
but maybe my dad just bought good shit, i dunno
Posted by renesis at 13:30 | permalink | 0 comments
dx^: bs mechatronics
its like 3/5 mechanical, 2/5 electronics, sprinkle of CS, im prob going to try and double major in EE
first day tomorrow
last week was bunch of orientation and advising
Posted by renesis at 05:25 | permalink | 0 comments
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