#garfield Logs

Oct 24 2021

12:01 AM Tom_L: my kids have started using tools from my toolbox and i've made it very clear that they get returned to their exact location when done
12:09 AM Tom_L: if not the box gets locked. so far i haven't locked it
12:09 AM rue_mohr: I hope they do well with it
12:09 AM Tom_L: well i wanted to start off with a good understanding i don't mind them using them but put them back
12:09 AM rue_mohr: I tired that
12:09 AM Tom_L: the rotary post is coming along.
12:09 AM Tom_L: i need an axis to test much more
12:09 AM rue_mohr: then I went to "no using anything when I'm not here"
12:09 AM rue_mohr: then I had to lock it
12:09 AM Tom_L: kinda tough when you began with an open door policy
12:09 AM Tom_L: nobody else borrows my stuff. i've learned that lesson too
12:09 AM Tom_L: on rare occasion...
02:50 AM rue_mohr: ok Rue, try this, primary 21 turns, secondary 9 turns
04:14 AM Tom_L: so how do you know how many turns on a transformer?
04:15 AM Tom_L: you have a ratio but that could be any number of turns
04:15 AM Tom_L: what does more turns get you?
04:15 AM Tom_L: (same ratio)
08:51 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Smartcam/rotary/Rotary_unwrappede.jpg
08:51 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Smartcam/rotary/Rotary_wrapped.jpg
11:54 AM rue_bed: morning
11:54 AM Tom_L: uh huh
11:55 AM rue_bed: so, if you dont put enough turns on, the core magnetically saturates
11:55 AM rue_bed: with iron cores at 60hz, you usually use about 0.5V/turn
11:56 AM rue_bed: with switching supplies, it gets lots more complex
11:56 AM Tom_L: that little one i made had different coil options
11:57 AM rue_bed: cam rotary looks interesting
11:57 AM rue_bed: is libera being unstable or is it my internet
11:58 AM rue_bed: are the attackers after this network now?
12:01 PM Tom_L: i dunno
12:01 PM Tom_L: i had a power glitch this morning
12:01 PM Tom_L: had to reset everything
12:02 PM Tom_L: catia has a surface unwrap feature. i may try modeling the part there and importing it to the cad cam
12:02 PM Tom_L: that would ease calculating hole locations and various features if it works
12:19 PM Tom_L: i think it's your connection
01:05 PM rue_bed2: there is a wind storm, but its usually not an issue
01:05 PM rue_bed2: ok, where is my happy place and how do I hang out there for as long as I can today
01:07 PM Tom_L: trying to figure out feed for rotation
01:07 PM Tom_L: units and time would affect the part's turnout
01:07 PM rue_bed2: heh, distance from centre
01:08 PM rue_bed2: a "gear" might be a good starter project
01:08 PM rue_bed2: index, cut, index cut
01:08 PM Tom_L: trying to correlate lcnc and the cad cam so they agree
01:08 PM rue_bed2: not with a real bit because $$, but
01:09 PM rue_bed2: ah
01:09 PM Tom_L: but
01:09 PM Tom_L: i need a break
01:09 PM rue_bed2: and I need to get up
01:09 PM Tom_L: https://linuxcnc.org/docs/2.6/html/config/ini_config.html#sub:TRAJ-section
01:10 PM Tom_L: http://linuxcnc.org/docs/2.8/html/gcode/g-code.html#gcode:g93-g94-g95
02:36 PM rue_mohr: ok, so
02:37 PM rue_mohr: I need to go help a guy change a battery in his smoke det
02:37 PM rue_mohr: he's gonna talk for about 2 hours after, so I should wait till end of day
02:37 PM rue_mohr: one of the people in twitter is having limited success with my idea of using UV nailpolish for etch resist
02:38 PM rue_mohr: so I really want to play with that
02:38 PM rue_mohr: and I need to figure out this power supply
02:44 PM rue_mohr: there is gonna be a power outage today
02:53 PM Tom_L: wait til the end of the day and get groceries that have to be refrigerated
02:53 PM Tom_L: before you stop by his place
03:45 PM Tom_itx is now known as Tom_L
06:35 PM rue_mohr: well the modem is on a 55Ah solar battery
06:35 PM rue_mohr: not sure of the charge left on it tho
06:58 PM Tom_L: on backup now?
06:58 PM rue_mohr: I'm killing a battery
06:58 PM rue_mohr: a BIG one
06:58 PM rue_mohr: 55Ah or so
06:58 PM Tom_L: line em up
06:59 PM Tom_L: you have piles of em
06:59 PM rue_mohr: heh, hopefull the power comes back .. soon?
06:59 PM Tom_L: got the gen goin?
06:59 PM rue_mohr: the genny is doing good
06:59 PM rue_mohr: it only does the house
06:59 PM Tom_L: it blinked here today but came right back
06:59 PM Tom_L: just enough to shut things off
06:59 PM Tom_L: was real windy last night
07:00 PM Tom_L: kinda gettin into making the rotary work
07:00 PM Tom_L: have no projects for it ..
07:00 PM rue_mohr: :)
07:00 PM rue_mohr: make a cam!
07:01 PM Tom_L: i did
07:01 PM Tom_L: oh
07:01 PM Tom_L: an actual cam
07:01 PM Tom_L: not a cad CAM
07:01 PM rue_mohr: make an X and Y program that work togethor to do a neat path
07:01 PM Tom_L: X and A
07:01 PM rue_mohr: no
07:01 PM rue_mohr: like rotating cams
07:02 PM Tom_L: X and Z
07:02 PM Tom_L: y needs to stay put
07:02 PM rue_mohr: oh I should get a current draw before the battery dies
07:03 PM Tom_L: storms or just wind?
07:14 PM rue_mohr: rain and wind
07:14 PM rue_mohr: power just came back
07:16 PM Tom_L: nice
08:20 PM rue_mohr: https://twitter.com/RealTimeKodi/status/1452440637618466820
09:42 PM aandrew: rue_mohr: you have a lot of power flickers up there?
10:17 PM Tom_L: ok the post is mostly done without being able to test it
10:20 PM rue_shop3: I'v worked out that my transformer, less the feedback winding, should be right
10:22 PM rue_shop3: I think thats a 220Ah battery I put on the ups
10:22 PM rue_shop3: its a 280VA ups
10:22 PM rue_shop3: VA, not kva
10:22 PM rue_shop3: running it draws 6.6A
10:48 PM MrTime is now known as Ispy
10:56 PM Tom_L: added arc support
10:57 PM Tom_L: that could get confusing to program a wrapped arc