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[00:02:34] <cathode> hmmm... grade 8 or grade 5....
[00:50:30] <cathode> i love amazon
[00:51:13] <cathode> http://www.amazon.com/gp/product/B000RP7YI4/ref=ox_ya_os_product_refresh_T1
[01:03:00] <zeeshan> son of a bish
[01:03:05] <zeeshan> took the electric motor off
[01:03:07] <zeeshan> and it runs fine
[01:03:12] <zeeshan> so something up with the hydraulic pump
[01:18:15] <cathode> :/
[01:18:30] <cathode> i guess that is bad. a new motor is probably less $$ than a new pump, yes?
[01:19:39] <MrSunshine> whats da problam ?
[01:21:24] <zeeshan> MrSunshine: the pump is sticking
[01:21:28] <zeeshan> when i try to rotate by hand
[01:21:30] <zeeshan> but whats weird is
[01:21:41] <zeeshan> when i took apart the pump assembly from the reservoir
[01:21:45] <zeeshan> it spins a bit easaier.
[01:21:58] <zeeshan> maybe the reservoir vent is clogged
[01:22:02] <zeeshan> and is pressurizing the reservoir
[01:22:14] <zeeshan> im going to attempt to try tomorrow :)
[01:22:17] <zeeshan> enough work for the night
[01:25:06] <MrSunshine> ough ... sounds like fun =)
[01:25:24] <MrSunshine> but an electric motor can run betterw ith no load even if its half burnt =)
[01:26:11] <cathode> heh
[01:26:14] <cathode> true
[01:26:19] <MrSunshine> i recently fixed the motor stuff on my compressor ... it would blow one phase .. turned otu it was the motor protection stuff that was burnt .. 7 ohms over just ordenary closing contacts .. with one of them just closing intermittent =)
[01:26:34] <MrSunshine> it ran just fine when i removed the belt to the compressor block
[01:27:15] <zeeshan> honestly it doesnt sound like a burned motor
[01:27:22] <zeeshan> usually they run choppy
[01:27:29] <zeeshan> and vibrate weird
[01:27:47] <zeeshan> im so hungry.. what to eat!
[01:27:48] <zeeshan> its 2am!
[01:28:11] <MrSunshine> btw, anyone know of some info on restoring china keyless chucks? :P
[01:28:14] <MrSunshine> mine has come apart :/
[01:28:18] <Jymmm> zeeshan: I'm sure your 60K RPM spindle could "whip up something" =)
[01:28:43] <Valen> MrSunshine: ebay?
[01:28:48] <Valen> ;-P
[01:28:51] <zeeshan> lol Jymmm
[01:28:54] <Jymmm> zeeshan: Ok, whatcha got on the shelves to work with here?
[01:29:08] <MrSunshine> Valen, buy a new one? :P
[01:29:09] <zeeshan> Jymmm: no working
[01:29:11] <zeeshan> must buy fast food
[01:29:13] <zeeshan> :-)
[01:29:24] <Jymmm> zeeshan: from where?
[01:29:32] <zeeshan> bk
[01:29:32] <zeeshan> :D
[01:29:33] <Valen> I have nfi, thats just normally the repair process for chinese stuff isnt it?
[01:29:36] <zeeshan> ill beback
[01:30:15] <Jymmm> zeeshan: Ok, they have this 2 for $5 thing.... Get the long hamburger and the long chicken, and combine together
[01:30:53] <Jymmm> zeeshan: feed the extra bun to the birds, literally
[01:31:26] <cathode> hmm
[01:36:13] <cathode> sometimes ordering from mcmaster is tedious because i keep second-guessing my choices
[01:53:23] <cathode> meh. just placed the order. $41 plus whatever shipping ends up at.
[01:56:30] <cathode> in other news, can someone describe why shoulder screws are insanely expensive? do they have to be machined with operator assistance or something?
[02:00:15] <zeeshan> shoulder bolts are precisely machiend
[02:00:19] <zeeshan> at the shoulder
[02:00:24] <zeeshan> theyre not like a regular bolt :P
[02:00:43] <cathode> ok
[02:00:51] <zeeshan> theyre ground to finish too
[02:00:51] <zeeshan> :P
[02:00:58] <zeeshan> the harder grades that is
[02:01:09] <cathode> gotcha. so quite a lot of processing per bolt
[02:01:28] <cathode> that would explain why i saw a M12 x 90mm shoulder bolt listed for $47
[02:02:12] <cathode> also i take it you went and got food...
[02:03:55] <zeeshan> yes i did
[02:03:55] <zeeshan> :D
[02:04:02] <zeeshan> 47 seems like a lot for 1 bolt
[02:04:32] <zeeshan> should be around 3-5$
[02:04:42] <cathode> ok. i was just browsing on ebay
[02:04:42] <zeeshan> in 12.8
[02:04:57] <cathode> wasnt specifically looking for shoulder bolts
[02:05:13] <zeeshan> i like shoulder bolts
[02:05:19] <zeeshan> cause instead of dowels
[02:05:24] <zeeshan> the dowel is built into the bolt :D
[02:05:36] <cathode> anyway, i just ordered a bunch of crap from mcmaster. ended up getting a package of nord-lock washers to secure my pillow blocks
[02:05:43] <zeeshan> what are you making
[02:06:10] <cathode> https://www.dropbox.com/s/x6ea4htxcrzkm78/2014-10-18%2015.33.18.jpg?dl=0
[02:06:43] <zeeshan> some sort of press?
[02:06:51] <cathode> i'm building a unit that will slide vertically and hold the upper wheel of my bandsaw
[02:07:03] <zeeshan> looks beefy :)
[02:07:04] <zeeshan> i like it
[02:07:04] <cathode> the pneumatic pistons will apply tension to the bandsaw blade
[02:07:14] <cathode> it's infinitely better than a spring and screw like most have
[02:07:28] <cathode> springs can't apply much force (relatively), and they wear out and fail over time
[02:07:39] <zeeshan> cars usually make use of hydraulic tensioners
[02:07:51] <zeeshan> ive never seen pneumatic,
[02:07:54] <zeeshan> it looks interesting :)
[02:07:56] <cathode> i have a pressure regulator that will control the amount of tension on the blade.
[02:08:05] <cathode> pneumatic cylinder also acts as a shock absorber
[02:08:07] <zeeshan> what happens if you lose air pressure
[02:08:08] <Deejay__> moin
[02:08:16] <cathode> i have a backflow prevention valve
[02:08:20] <zeeshan> gotcha
[02:08:21] <cathode> check valve*
[02:08:30] <zeeshan> so this is kind of like
[02:08:31] <zeeshan> "air ride"
[02:08:33] <zeeshan> for cars :D
[02:08:34] <cathode> yeah
[02:09:01] <cathode> hypothetical situation: a chip of wood lands on the bandsaw wheel and gets wedged under the blade, pushing it out
[02:09:13] <cathode> you want there to be a little bit of "give" in the tension
[02:09:17] <cathode> so that it doesn't snap the blade
[02:09:52] <zeeshan> yea
[02:09:56] <zeeshan> keep it at the ideal tension
[02:09:57] <zeeshan> all the time
[02:10:23] <cathode> yep... and because i know the surface area of the cylinders, i can print out a little chart
[02:10:37] <cathode> that will tell me how many pounds of tension at a given PSI
[02:11:31] <cathode> this is one of the wheels, i was testing the mounting to the shaft.
https://www.dropbox.com/s/sf1agkgfvqwuu6l/2014-10-23%2021.17.12.jpg?dl=0
[02:12:37] <zeeshan> you have some crazy wood working skills
[02:12:38] <zeeshan> :)
[02:12:47] <cathode> lol
[02:12:49] <cathode> er, thanks
[02:13:06] <zeeshan> howd you make that wheel's outer rim?
[02:13:07] <zeeshan> so round
[02:13:17] <zeeshan> thats a huge wheel
[02:13:46] <cathode> spun it on a piece of plywood that was clamped to the table saw
[02:14:00] <cathode> so the wheel spun freely with a makeshift axle
[02:14:35] <cathode> once it's actually installed, it will get a second treatment with more accuracy
[02:15:12] <cathode> the whole project is using repurposed or discounted materials. the only thing i've bought new has been fasteners, and some electrical stuff
[02:16:31] <cathode> the frame is made of layers of 5/8" wood boards laminated together under substantial pressure.
https://dl.dropboxusercontent.com/u/88948814/Shop/Bandsaw/2014-05-19%2020.57.41.jpg
[02:17:20] <zeeshan> holy shit
[02:17:22] <zeeshan> thats a lotta clamp
[02:17:25] <zeeshan> thats like 300$ in clamps
[02:17:26] <zeeshan> haha
[02:17:29] <zeeshan> or even more
[02:17:35] <cathode> nahhhh, half of those are from harbor freight
[02:17:47] <cathode> i bought about 25 clamps just to finish this project. haha
[02:17:59] <cathode> you can never have too many clamps, you know.
[02:18:09] <zeeshan> haha i have like 30 c-clamps
[02:18:11] <zeeshan> that i use for welding
[02:18:22] <zeeshan> still not enough
[02:18:35] <cathode> :)
[02:20:48] <cathode> sheaves that i got on craigslist... only wanted the big one but the guy wanted to get rid of all 3. i think i paid $30.
https://dl.dropboxusercontent.com/u/88948814/Shop/Bandsaw/2014-04-30%2017.09.09.jpg
[02:21:18] <cathode> and then after 2+ days soaking in a bucket of vinegar:
https://dl.dropboxusercontent.com/u/88948814/Shop/Bandsaw/2014-05-07%2021.12.35.jpg
[02:21:55] <zeeshan> nicee
[02:22:18] <cathode> do you use acid wash or electrolysis to remove rust?
[02:22:30] <zeeshan> either works
[02:22:31] <cathode> or just an angle grinder with a wire brush wheel?
[02:22:36] <zeeshan> people use muratic acid
[02:22:39] <zeeshan> i personally sand blast it
[02:22:42] <cathode> ahh
[02:22:51] <cathode> i didn't want to pit or damage the sheave
[02:22:59] <zeeshan> you can use a light media
[02:23:01] <cathode> in case it created a rough spot that caused wear on the v-belt
[02:23:09] <zeeshan> like walnut shells
[02:23:22] <cathode> hmmm
[02:27:03] <cathode> at the moment i'm trying to decide if i want to try and use this bandsaw for both wood and metal. originally i was planning on using it for only cutting wood
[02:27:32] <zeeshan> youd need to do something about protecting the wood pulleys
[02:27:38] <zeeshan> so the cutting oil doesnt own them
[02:27:45] <cathode> yeah
[02:28:02] <cathode> hmm. i guess i'll stick to my jigsaw for metal for now. i don't really cut metal much
[02:28:16] <cathode> i could always get a separate smaller bandsaw for cheap on craigslist
[03:00:18] <D3add3d> Hello, can someone tell me if it is possible to install LinuxCNC on Ubuntu 14.04?
[03:01:16] <D3add3d> on wiki there are only instructions for Ubuntu 8 and 10
[03:03:13] <archivist> because the realtime was lagging, people are testing and working on the later also testing on debian
[03:11:28] <D3add3d> ah... ok, I'll test and see if it will run smoothly on my i7 (4 c., 8 th. @ 4.3GHz) with 32GB HyperX Red RAM :-D
[03:12:35] <archivist> getting the realtime going will be the interesting part
[03:13:08] <archivist> look in the mailing list archives to see what people have been doing
[03:19:19] <D3add3d> oh... I can also put it on Raspberry Pi? I have a dozen lying around(they were used for proof of concept cloud computing test)
[03:19:55] <archivist> bit hard to fit on a pi
[03:20:47] <archivist> see here
http://www.raspberrypi.org/forums/viewtopic.php?t=33809
[03:22:14] <archivist> just easier to use the pre done live CD image
[03:23:12] <D3add3d> yeah... I guess I will have to go buy some CDs
[03:24:15] <archivist> some put it on a usb stick and boot from that
[03:25:52] <D3add3d> Well, my usb sticks are all currenty used and CDs are really cheap
[04:16:21] <guerillaengineer> How goes it?
[10:21:21] <tjtr33> my servo project needs 31outputs and 25 inputs. I have a 5i20, a 7i33 and 2 7i37 on hand.
[10:21:27] <tjtr33> I bump into the old industry std of 16in and 8 out as a limitation.
[10:21:27] <tjtr33> Any reason stopping a 5i2x from being all outputs? ( say I use Mariss's opto coupler idea at 320uA each )
[10:21:51] <tjtr33> http://www.anderswallin.net/2006/08/optoisolator-cards-for-mesa-5i20-servocard/
[10:25:26] <pcw_home> any pin can be a GPIO input or output though theres some dependence on the configuration
[10:25:27] <pcw_home> (because the driver only knows how to enable stepgens or PWMgens on 0 to N basis)
[10:28:27] <tjtr33> i think i understand, so, on a 5i20, past the 1st 'channel' 7i33, the 2nd & 3rd 50pin 'channels' could be all outputs?
[10:28:45] <pcw_home> Yes
[10:28:47] <pcw_home> If you use OPTOs I would suggest you use common Anode connected to cable pin 49 (5V)
[10:28:48] <pcw_home> and then use open drain mode so the outputs swing to 5V to make sure the OPTOS are completely off
[10:29:05] <pcw_home> (and all off at startup)
[10:30:37] <tjtr33> i dont find daughterboards that allow that :( am I on my own, or any chance I'd ever see a daughterboards with maybe pluggable sets of 8ins or 8outs (as you wish :)
[10:32:15] <pcw_home> you could use a 7I71/72 for outputs
[10:32:51] <pcw_home> dont know what kind of outputs you need
[10:34:21] <tjtr33> they drive opto-22 relays, so 3-32V, i dunno the current drive required.
[10:34:23] <tjtr33> Thanks i been looking at the mesa page and didnt see that as an option.
[10:34:50] <tjtr33> i'm looking to find the 48 input card i must have overlooked now
[10:35:23] <pcw_home> if they are 24 I/O racks you can drive them directly from 5I20 outputs
[10:36:36] <tjtr33> scattered , not racks, so the daughtercards with terminal strips look nice
[10:36:57] <tjtr33> and the 7i70 is the 48 input
[10:38:12] <pcw_home> a 7I71 or 72 gives you 48 12/24V outputs, the 7I70 gives you 48 inputs (also 12/24V)
[10:38:58] <tjtr33> very nice, as usual you're very helpful
[11:06:07] <zeeshan> pcw_home: does it say "pending" even when an order has shipped? :P
[11:08:02] <pcw_home> It might if they did not get around to updating the web store
[11:08:23] <zeeshan> okay :)
[11:26:35] <gennro> laser engraver half way there
https://www.dropbox.com/sc/8xbyonxtenfc6i2/AACm_pYVT2LNBFC9_ruXvT93a
[11:27:43] <gennro> hello all btw'
[11:29:56] <cathode> https://www.youtube.com/watch?v=_65mXQ-GNVM <-- looks like a fun job
[11:31:16] <gennro> yeah that would take a few mins
[11:48:41] <XXCoder> wow nice video
http://www.fromquarkstoquasars.com/stunning-slow-motion-video-metal-work-action/
[11:49:40] <XXCoder> more than one video
[11:50:08] <tjtr33> pcw_home, is this combo reasonable for 31outs and 25 in?
[11:50:09] <tjtr33> I change to a 5i25 --par->7i74 --smartser->7i70&7i72 ? a lotta bang for 360bux
[12:44:21] <tjtr33> pcw_home, remix: I change to a 5i25, 7i77, 7i75 for 6servos 33outs 32ins
[13:35:17] <awallin> anyone see the "titan - american built" (mavtv) show that was advertized a lot by Haas? apparently premier was y-day..
[14:04:20] <tjtr33> didnt see the movie, good luck to them. what do they make?
[14:04:26] <tjtr33> i only saw tshirts and logos on the website.
[14:04:27] <tjtr33> a jobshop for random work will struggle, a shop with a direction/specialty will fare better
[16:30:40] <tjtr33> i want to spreadsheet the pinouts for 5i15/7i77, but dont have the hdwr yet.
[16:30:52] <tjtr33> Does hm2_5i25.0.7i77.0.0.input-10-not wire to 1st 5i25, 1st 7i77, TB8 pin11 ( read as neg logic)?
[16:31:00] <tjtr33> and hm2_5i25.0.7i77.0.1.analogena is wired to TB5 1,2 or similar pair?
[16:31:00] <tjtr33> ( wire any 1 of these pairs as active high/low as needed and enables0-4 act in unison )
[16:35:18] <JT-Shop> the I/O wires to the 7i77
[16:35:41] <JT-Shop> and spindle
[16:36:51] <Deejay> gn8
[16:38:24] <tjtr33> thx JT-Shop , its the ..0.0.. and ..0.1.. that threw me, i'm guessing .0.0 means TB7&8 and .0.1 means TB5
[16:40:40] <JT-Shop> I'd have to look
[16:41:51] <tjtr33> dont stop what you're doin, I'll try to ask Peter when he gets back, thx
[16:42:18] <JT-Shop> 0.0 is card 0 ie the 7i77
[16:42:50] <JT-Shop> 0.1 would be a second card plugged into the 5i25
[16:43:11] <tjtr33> in your config for BP you mention 0.0 and 0.1 do you have 2 5i25's in that system?
[16:43:32] <tjtr33> in bp.hal
[16:43:41] <JT-Shop> no, the 0.1 is for the analogout pins
[16:43:47] <JT-Shop> just looking now
[16:44:48] <tjtr33> ok analog out is on TB5 ( 0,1 ) and digital is on TB7&8 (so i guess 0.0)
[16:45:00] <JT-Shop> yep
[16:45:07] <tjtr33> hey thanks!
[16:45:19] <JT-Shop> I have a pin out of the 7i77 (hal pins) if you want it
[16:45:38] <tjtr33> i picked it up from gnipsel ( very handy site :)
[16:45:40] <JT-Shop> also in the mesa manual is the terminal block pin out
[16:45:44] <JT-Shop> ok cool
[16:46:14] <tjtr33> do you have a hal dump of the named pins?
[16:46:32] <JT-Shop> yea
[16:47:45] <JT-Shop> pins Component Pins:
[16:47:45] <JT-Shop> Owner Type Dir Value Name
[16:47:45] <JT-Shop> 9 bit OUT TRUE axis.0.active
[16:47:45] <JT-Shop> 9 bit OUT FALSE axis.0.amp-enable-out ==> x-axis-enable
[16:47:45] <JT-Shop> 9 bit IN FALSE axis.0.amp-fault-in
[16:47:48] <JT-Shop> 9 float OUT 0 axis.0.backlash-corr
[16:47:50] <JT-Shop> 9 float OUT 0 axis.0.backlash-filt
[16:47:52] <JT-Shop> 9 float OUT 0 axis.0.backlash-vel
[16:47:54] <JT-Shop> 9 float OUT 15.91503 axis.0.coarse-pos-cmd
[16:47:56] <JT-Shop> 9 bit OUT FALSE axis.0.error
[16:47:58] <JT-Shop> 9 float OUT 0 axis.0.f-error
[16:48:00] <JT-Shop> 9 float OUT 0.01 axis.0.f-error-lim
[16:48:02] <JT-Shop> 9 bit OUT FALSE axis.0.f-errored
[16:48:04] <JT-Shop> 9 bit OUT FALSE axis.0.faulted
[16:48:06] <JT-Shop> 9 float OUT 15.91503 axis.0.free-pos-cmd
[16:48:08] <JT-Shop> 9 bit OUT FALSE axis.0.free-tp-enable
[16:48:10] <JT-Shop> 9 float OUT 3 axis.0.free-vel-lim
[16:48:12] <JT-Shop> 9 s32 OUT 0 axis.0.home-state
[16:48:13] <tjtr33> eek
[16:48:14] <JT-Shop> 9 bit IN FALSE axis.0.home-sw-in <== x-limits
[16:48:18] <JT-Shop> 9 bit OUT TRUE axis.0.homed
[16:48:20] <JT-Shop> 9 bit OUT FALSE axis.0.homing
[16:48:22] <JT-Shop> 9 bit OUT TRUE axis.0.in-position
[16:48:24] <JT-Shop> 9 bit I/O FALSE axis.0.index-enable
[16:48:26] <JT-Shop> 9 s32 IN 134894000 axis.0.jog-counts <== jog-position
[16:48:28] <JT-Shop> 9 bit IN FALSE axis.0.jog-enable <== x-jog-select
[16:48:30] <JT-Shop> 9 float IN -1e-05 axis.0.jog-scale <== axis-mpg-jog-scale
[16:48:32] <JT-Shop> 9 bit IN FALSE axis.0.jog-vel-mode
[16:48:34] <JT-Shop> 9 float OUT 15.9151 axis.0.joint-pos-cmd
[16:48:36] <JT-Shop> 9 float OUT 15.9151 axis.0.joint-pos-fb
[16:48:38] <JT-Shop> 9 float OUT 0 axis.0.joint-vel-cmd
[16:48:40] <JT-Shop> 9 bit OUT FALSE axis.0.kb-jog-active
[16:48:42] <JT-Shop> 9 float OUT -11.79067 axis.0.motor-offset
[16:48:44] <JT-Shop> 9 float OUT 4.124433 axis.0.motor-pos-cmd ==> x-axis-pos-cmd
[16:48:48] <JT-Shop> 9 float IN 4.124433 axis.0.motor-pos-fb <== x-axis-fb
[16:48:50] <JT-Shop> 9 bit OUT FALSE axis.0.neg-hard-limit
[16:48:52] <JT-Shop> 9 bit IN FALSE axis.0.neg-lim-sw-in <== x-limits
[16:48:54] <JT-Shop> 9 bit OUT FALSE axis.0.pos-hard-limit
[16:48:56] <JT-Shop> 9 bit IN FALSE ax
[16:48:58] <JT-Shop> http://pastebin.com/BUkjvRnf
[16:49:00] <JT-Shop> sorry about the flood
[16:49:02] <JT-Shop> parameters
http://pastebin.com/dQ0pTJ1n
[16:49:05] <tjtr33> thx!
[16:50:12] <JT-Shop> looks like a L belt will work for my table saw
[16:50:14] <tjtr33> oh cool you added touchy and a spindle vfd
[16:51:05] <JT-Shop> yea, I can rigid tap now
[17:01:01] <SpeedEvil> http://www.ebay.co.uk/itm/402188-Precision-2-Axis-Fixed-Cross-Slide-Base-Milling-Drilling-Table-185-100MM-/281245401155?pt=UK_Hand_Tools_Equipment&hash=item417b884043 - for example. I assume that using one of these for the basis of a multipurpose machine - including a 3d printer would be a bad idea due to the very large number of (admittedly zero load) cycles?
[17:10:05] <tjtr33> SpeedEvil, its cast iron ( massive) , dovetailed ways, and with tapered gibs. not a good candidate for cnc, and esp not for wicked fast moving 3D printers ( sorry )
[17:10:42] <SpeedEvil> Idle thoughts.
[17:12:16] <tjtr33> i got 2 fehlmans ( top of the line swiss made) you could have for postage ( figger 25 kg each and 150x300mm motion, brass nuts, 2mm pitch box thread )
[17:13:37] <tjtr33> good old iron is best when its close to home
[17:17:53] <tjtr33> wow! this is it & the guy thinks its worth 3500$!
http://www.ebay.com/itm/FEHLMANN-KS-200-SUPER-PRECISION-COORDINATE-SLIDE-TABLE-/310813877559
[17:18:05] <XXCoder> cheap
[17:18:49] <tjtr33> notice its built with deep gutters, they made them for 1970's AGie edm machines, a plexi box was strapped to outer edge
[17:29:28] <tjtr33> thought i recognized something, fullerton CA is Gaiser tool, they do bonding tools and had loads of AGie AB's with those tables. bonding tools is tiny stuff, welds they wires inside chip from the legs to the die
[18:25:37] <CaptHindsight> "table is $10,000 new!" he has to get his money back
[19:49:23] <_DannyK_> Hey ssi, you around?
[21:35:40] <tjtr33> on a 5i25, the 1st 4 inputs can be used as low-rez analog inputs. Anyone have experience with this?
[21:36:42] <humble_sea_bass> http://i.imgur.com/yVocfYt.gif
[21:40:50] <_DannyK_> sea_bass: sweet
[21:41:30] <_DannyK_> looks like the camber is a bit off on theright front wheel
[21:43:04] <_DannyK_> Maybe not, I assumed the heat was from driving in a, somewhat, straight line before the doughnuts.
[21:43:12] <pcw_home> tjtr33: on a 7I77 ( or 7I76 or 7I84) not a 5I25
[21:45:29] <pcw_home> (or 7I70 which has 6 channels)
[21:47:30] <tjtr33> pcw_home, yes you're right, on a 7i77. i read the 1st 4 inputs could be read as analog inputs ( like a pot )
[21:47:44] <pcw_home> Yeah
[21:49:15] <tjtr33> oh, so i just read hm2_5i25.0.7i77.0.0.analogin0 as a float! doh! thats way cool
[21:49:27] <pcw_home> Its fairly funky ( its basically a side effect of the fact the digital inputs are all read as analog and processed for hysteresis, threshold etc)
[21:49:44] <pcw_home> so 8 bits and 36V full scale
[21:50:36] <tjtr33> good enuf for say the THC input? ( after some large watt resistor divider )
[21:50:54] <pcw_home> possibly
[21:51:35] <tjtr33> thx, i'll avoid one of those 4 so i can play with it later
[21:52:05] <pcw_home> input impedance is 22K so a 180K resistor for ~300V FS
[21:52:42] <tjtr33> FS?
[21:52:50] <pcw_home> Full Scale
[21:53:03] <tjtr33> ok
[21:53:23] <pcw_home> Hmm not sure if the polarity may be wrong :-(
[21:53:51] <pcw_home> its unipolar of course + only
[21:54:12] <tjtr33> i can feed my idea thru a bridge to insure pos polarity always
[21:54:52] <tjtr33> heh a bridge is like abs()
[21:55:35] <pcw_home> yeah but not sure you want to float the input GND at plasma voltage
[21:56:17] <pcw_home> that could bite!
[22:05:33] <tjtr33> thx pcw_home
[23:23:39] <asah> got my hydros up!
[23:23:52] <asah> last system is now fully functional!
[23:24:36] <XXCoder> now to take over the world!
[23:24:48] <asah> zeeshan, how goes your retro?
[23:28:10] <cathode> hydros?
