#garfield Logs

Apr 11 2018

12:00 AM katsmeow: yeas
12:03 AM rue_mohr: ok!
12:03 AM katsmeow: maybe zif too
12:03 AM rue_mohr: OOO....
12:03 AM rue_mohr: ok, I think we have worked lots out and should resume when your feeling more like being alive?
12:03 AM katsmeow: found the zif, it's dip-40
12:03 AM rue_mohr: ok, so we should use the dip40 avr
12:03 AM katsmeow: i thought i has a zif-16 or -14 too
12:03 AM katsmeow: i has a question
12:03 AM rue_mohr: qty 6 AT89C5224PC , qty 1 AT90s2313-10PI , qty2 ATTINY2313-20PI , qty 200 at90s4414-8
12:03 AM rue_mohr: please submit question at the prompt. >
12:03 AM katsmeow: why can't we use the perfboards i have plugged into the dragon already?
12:03 AM rue_mohr: *blink*
12:03 AM rue_mohr: at some point, would you take a pic of them for me?
12:03 AM katsmeow: i don;t remember how i got 5v to the avr
12:03 AM rue_mohr: (there was a problem last time that prevented you from running the avr stand-alone, iirc we could not overcome it)
12:03 AM rue_mohr: thru the dragon
12:03 AM rue_mohr: you use the power pins that get thrie power from the usb
12:04 AM katsmeow: oh yea
12:04 AM katsmeow: took pics
12:05 AM rue_mohr: https://maclabsengineering.files.wordpress.com/2014/04/20140405_074155.jpg
12:05 AM rue_mohr: important notes about that image
12:05 AM rue_mohr: the green and brown are power
12:05 AM rue_mohr: the resistor goes from RST to +5V
12:05 AM rue_mohr: more than 1k, I think thats 10k
12:11 AM katsmeow: DesignerThinking.com\images\DSCF7086.jpg
12:11 AM katsmeow: DesignerThinking.com\images\DSCF7087.jpg
12:11 AM rue_mohr: http://DesignerThinking.com\images\DSCF7086.jpg
12:11 AM rue_mohr: http://DesignerThinking.com/images/DSCF7086.jpg
12:11 AM katsmeow: they have not been under cover since 2013 either
12:12 AM rue_mohr: http://DesignerThinking.com/images/DSCF7087.jpg
12:12 AM rue_mohr: ok
12:12 AM katsmeow: but you can possibly tell that if i had been able to buy the ships from you in 2013, i'd have them already
12:12 AM rue_mohr: is that ribbon plugged into the jtag or isp?
12:12 AM katsmeow: isp
12:12 AM rue_mohr: ok
12:13 AM katsmeow: i seem to have AVRStudio 4 and Atmel studio 6
12:13 AM rue_mohr: if you want to take a pic of the dragon the other way around, I can point to the gnd and +5
12:13 AM rue_mohr: we dont wnat to use those
12:13 AM rue_mohr: they caused problems
12:14 AM rue_mohr: I want to be sure it'll work standalone
12:14 AM rue_mohr: and I remembe when you unplugged the programmer, the avr would stop
12:14 AM katsmeow: the 5v on the dip-6 header?
12:14 AM rue_mohr: and that the program would oly run in single step
12:14 AM katsmeow: i do not remember
12:14 AM rue_mohr: I was frustrated as all hell
12:14 AM rue_mohr: it looks like the power ont eh isp is a fake
12:15 AM rue_mohr: there is another header with the power on it
12:15 AM katsmeow: how can you tell that?
12:15 AM rue_mohr: cause people on the internetz are wiring things funny
12:15 AM rue_mohr: to get around the problem
12:16 AM katsmeow: ah
12:16 AM rue_mohr: it looks like you need to backfeed the isp with your vcc supply too (!?!?!)
12:16 AM katsmeow: i can use a 12vdc walwart and put a 7805 of some flavor on the lil perfboard
12:17 AM rue_mohr: I'd verry much like to build a 74ls-- programmer, but I will swallow that for now
12:17 AM katsmeow: or a real close-by heatsink
12:17 AM rue_mohr: well yes, thats an option
12:17 AM katsmeow: didja see where i said Tiggrs puters all have parports?
12:17 AM rue_mohr: yup
12:18 AM rue_mohr: but we lack a dip solution for 74xx125 or 74xx244
12:18 AM katsmeow: i dunno about the connector tho
12:18 AM rue_mohr: that said, iirc there are problems with the parallel port programmer if the logic isn't HC (!??!)
12:18 AM katsmeow: why must they be dip? ('ll write it soen this time on a postit i promise)
12:18 AM rue_mohr: if your good with the 9V -> 7805, lets do that
12:19 AM katsmeow: 12
12:19 AM rue_mohr: cause you have 0.1" protoboard?
12:19 AM rue_mohr: 12 ok
12:19 AM katsmeow: oooh, ok
12:19 AM rue_mohr: the avr pulls about 8mA, so 4*0.008 w
12:19 AM katsmeow: i have to220 and to92 7805
12:19 AM rue_mohr: prolly dont need a heatsink :)
12:20 AM katsmeow: prolly use the to220 anyhow
12:20 AM rue_mohr: I'd go with 220 personally
12:20 AM rue_mohr: shall I just leave you with that for a bit?
12:20 AM katsmeow: my uppereyelidkeepfallingdown
12:21 AM rue_mohr: heh, gnight
12:21 AM rue_mohr: rememebr to studdy
12:21 AM rue_mohr: the events of falling alseep
12:21 AM katsmeow: you programemd avr with your pata ports too, did you?
12:21 AM rue_mohr: yes
12:21 AM rue_mohr: requires a few more chips...
12:21 AM katsmeow: in winders?
12:21 AM rue_mohr: no, I was able to put a parport driver over the pata io map under linux
12:22 AM rue_mohr: it thought it was a parport
12:22 AM rue_mohr: you might be able to force windows to do that
12:22 AM katsmeow: no, well, maybe, i hear it takes a dll, and a programming language that can load the dll
12:23 AM rue_mohr: maybe not
12:23 AM katsmeow: and it's not real time, timing can be off by a sec,, but prooly asm e with theparport
12:23 AM rue_mohr: with some magic in a ... those installer file definition things
12:23 AM * katsmeow nods
12:24 AM rue_mohr: inf file magic
12:24 AM rue_mohr: http://ruemohr.org/~ircjunk/circuits/ide2isp.png
12:25 AM rue_mohr: 125, 02 and 174
12:25 AM rue_mohr: the 02 and 174 mimmic the parport
12:25 AM katsmeow: 174 is a hex 373/4 ?
12:25 AM rue_mohr: yes
12:26 AM rue_mohr: non-transparent iirc
12:26 AM katsmeow: good, because i prolly have no 174, but i can build a small house with the 374 i have
12:26 AM rue_mohr: 125 being 244 equiv
12:26 AM rue_mohr: or 245
12:26 AM rue_mohr: ish
12:26 AM rue_mohr: ... or 4066
12:26 AM katsmeow: i have piles of 245, iirc
12:26 AM rue_mohr: ...
12:27 AM katsmeow: and 40166 / 4016
12:27 AM katsmeow: and 4066 / 4016
12:27 AM rue_mohr: well hey
12:27 AM rue_mohr: maybe we can make a new programmer
12:27 AM katsmeow: and 25x <?>
12:27 AM rue_mohr: wait, too many directions, maybe we should just try the dragon for now
12:28 AM rue_mohr: if your ok with it, lets put a 5V supply on the avr board
12:28 AM rue_mohr: we can work from there
12:28 AM katsmeow: maybe, or not, haveing bidirectional byte-banging possibilities, and ram-reading/writing, acceess i can really use
12:28 AM rue_mohr: need to establish a working platform
12:29 AM * katsmeow nods
12:29 AM rue_mohr: one that lets you upload code to it, and have the code run when the programmer is disconnected
12:30 AM * katsmeow nos haw a baggie of to220 7805 on the desk in front of herself
12:30 AM katsmeow: err, now has
12:30 AM rue_mohr: Tom_L, do you ahve a schematic of that 125 based programmer?
12:31 AM katsmeow: if i feed power t the dragon from my 7805, how do i get it to stp using the 5v from the usb port?
12:32 AM rue_mohr: from what I can tell, if your not using the *other* header for power, its not connected
12:33 AM rue_mohr: but their both 5V, so, no conflict right?
12:34 AM * katsmeow nods
12:34 AM katsmeow: i nee d go find the bed whil i figure a goof chance o getting there
12:34 AM katsmeow: gnites
12:35 AM rue_mohr: gnightsx
05:24 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/avr/ispdongle.pdf
05:24 AM Tom_L: only one i have
05:24 AM Tom_L: remember it's backwards!
05:25 AM Tom_L: that's a 244 one
08:56 AM rue_bed: I cant recall if rifiaf found the '125 one or I created it
10:06 AM rue_mohr: iirc I only had the inverted one, so I had some fun
01:06 PM katsmeow: FYI , this seller has good deals on resistors, including precision 2w and 3w metal film in qty 50 : https://www.ebay.com/sch/m.html?_odkw=resistors+3w&_ssn=electronic_diy_honest&hash=item441a986dea%3Ag%3ADA8AAOSwbqpT7cMq&item=292503973354&_osacat=181912&_from=R40&_trksid=p2046732.m570.l1313.TR11.TRC4.A0.H0.Xresistors.TRS1&_nkw=resistors&_sacat=181912
01:06 PM katsmeow: and a good selection in values under 1 ohm
01:06 PM katsmeow: that is all
02:17 PM zhanx: rue_mohr: get you print me a y motor mount and ship it to me? my kit was missing it
07:11 PM rue_mohr: whaaat?
07:11 PM rue_mohr: wait
07:11 PM rue_mohr: y
07:11 PM rue_mohr: want to take me a pic of what you got?
07:14 PM rue_mohr: https://www.thingiverse.com/thing:715465
07:14 PM rue_mohr: it should look kinda like that, but for a smaller motor
07:14 PM rue_mohr: I'll ship ya one if you need
07:16 PM rue_mohr: please fwd to kat: I have a maker meeting tonight, I might not be back for most of the evening, hows the 5V supply going?
07:24 PM zhanx: rue that is the part
07:24 PM zhanx: but for a nema 17, but never mind
07:25 PM zhanx: they are sending it to me, now I just need the gear on the end of the steppers
07:26 PM rue_mohr: use the ones from the printers
07:26 PM rue_mohr: did they origionally run belts?
07:26 PM zhanx: are they gt2s?
07:27 PM rue_mohr: any belt you want
07:27 PM zhanx: most are geared
07:27 PM rue_mohr: do you have enough belt systems to do it
07:27 PM zhanx: i think only one had a belt
07:27 PM rue_mohr: I have LOTS of impact printer parts
07:27 PM zhanx: find out when i get back
07:27 PM zhanx: https://imgur.com/a/wiwZC
07:27 PM rue_mohr: nice
07:28 PM rue_mohr: how the hell they forget parts... geez
07:28 PM zhanx: have to go out of town tomorrow till sat or sun
07:28 PM rue_mohr: ok
07:28 PM rue_mohr: are you using M8 for z rods?
07:28 PM * rue_mohr squints
07:28 PM rue_mohr: or 5/16
07:28 PM zhanx: its 5/16 threaded
07:29 PM rue_mohr: I can help with numbers
07:29 PM zhanx: i got rods from printers for the smooth ones
07:29 PM rue_mohr: ok, I can get you the right calibration number for that
07:29 PM rue_mohr: yup
07:29 PM rue_mohr: the X rails are critical to the z bearing spacing
07:30 PM zhanx: when i get back, i will dig out the rest of the parts and see if I can get it done
07:30 PM zhanx: i got a scan bed glass for the print bed for now
07:30 PM rue_mohr: why are there two retainers for the feeer!?!?
07:30 PM zhanx: not a clue
07:31 PM rue_mohr: hmm
07:31 PM rue_mohr: wonder if your gonna wanna buy of make a hobbed bolt
07:31 PM * rue_mohr thinks
07:33 PM zhanx: make
07:33 PM zhanx: i got a grinder
07:34 PM rue_mohr: how about a dremel...
07:34 PM rue_mohr: I can chek, I think its a 2.5" 5/16 bolt
07:34 PM zhanx: thats what i meant
07:34 PM zhanx: check for me
07:34 PM zhanx: but not now if you dont want to
07:35 PM rue_mohr: tying to get stuff ready for meeting
07:35 PM zhanx: go for it
07:35 PM zhanx: i am packing
07:42 PM zhanx: rue_mohr: http://www.instructables.com/id/Craft-a-Hobbed-Bolt/ <- ghetto way i found and i have everything on it
07:43 PM rue_mohr: ok
07:43 PM rue_mohr: I do the same thing on my lathe
07:43 PM rue_mohr: but you need to make sure its not off-centre or the extrusion gets all messed up
07:44 PM zhanx: check
07:44 PM zhanx: i will make like 4 of them and use the best one
07:47 PM zhanx: got to figure out if i want to use magnets on the glass top or bottom to make it easier to remove
10:18 PM zhanx: katsmeow: rue_mohr is at a maker meeting tonight
10:19 PM katsmeow: will he be showing up pics of it when he gets home?
10:19 PM zhanx: <rue_mohr> please fwd to kat: I have a maker meeting tonight, I might not be back for most of the evening
10:19 PM katsmeow: very considerate of him, and thank you
10:19 PM zhanx: also i started on my 3d printer for real today
10:19 PM zhanx: https://imgur.com/a/wiwZC
10:20 PM zhanx: not a problem
10:21 PM katsmeow: missing motors
10:22 PM zhanx: missing part for the motors
10:22 PM zhanx: seller is shipping them
10:22 PM zhanx: motors are in a box i got them out of printers
10:37 PM rue_mohr: kat, hows your mouth?
10:37 PM katsmeow: sore
10:37 PM rue_mohr: above or below the can_think level?
10:37 PM zhanx: rue_mohr: i passed on your message for you
10:37 PM rue_mohr: yes, thankyou
10:38 PM katsmeow: pain definately above the finish dinner level, already ate pills, thinking of real pain med
10:39 PM rue_mohr: did it clar enought o assemble a 5V supply on that board today?
10:39 PM katsmeow: no, been busy outside in the good weather, but i did really think about it
10:40 PM rue_mohr: ij
10:40 PM rue_mohr: ... ok
10:40 PM katsmeow: grabbed pwr barrel connector, on desk in front of me now
10:40 PM rue_mohr: ... there was... ok
10:41 PM katsmeow: 12vdc 1amp walwart on desk too
10:43 PM * katsmeow takes more of the non-narcotic drugs now
10:43 PM katsmeow: and a vitamin C
10:44 PM katsmeow: how do you save cooked pasta overnight?
10:45 PM rue_mohr: you give it to someone who vows to make you pasta later
10:45 PM rue_mohr: I got 3 M10 bolts today to make into encoders
10:45 PM katsmeow: no one like that in this state
10:46 PM rue_mohr: I now have the M10 bolts, the 7mm milling bit for sqaring the bottom of a hole,a nd the 4mmid x 7mm od bearings
10:46 PM rue_mohr: I can go optic or magnetic, not sold yet
10:47 PM rue_mohr: day before yesterday I realized that if I use two analog hall sensors at 90 degrees phase angle, I'll have a resolver
10:48 PM zhanx: oh that reminds me
10:48 PM zhanx: I need to find the endstop switches i kept
10:48 PM * zhanx adds a reminder to the phone
11:43 PM rue_mohr: huh, rare earth magnets are cheaper than ferrite ones
11:43 PM rue_mohr: economy of scale I guess
11:46 PM * katsmeow holds her jaw tenderly
11:48 PM rue_mohr: kat, where do I get radially polorized magnets?
11:48 PM zhanx: dough nuts?
11:49 PM rue_mohr: yea
11:49 PM rue_mohr: but not axial polorizatio
11:49 PM rue_mohr: n
11:49 PM rue_mohr: meh, guess I ahve to make crowns for axial polorized ones
11:49 PM katsmeow: i dunno
11:50 PM zhanx: these or smaller?
11:50 PM zhanx: https://www.walmart.com/ip/10E797-9-8-lb-Pull-Ring-Magnet/669754422
11:51 PM zhanx: cause that is the harborfeight magnet
11:53 PM rue_mohr: about 10mm dia, 1mm thick, with a 4mm hole
11:54 PM rue_mohr: hoel can be 5mm
11:56 PM rue_mohr: wow, I'm tired today
11:57 PM rue_mohr: I wonder at what point the tiredness magically vaporizes and leaves me high and dry for the night
11:57 PM * katsmeow is waiting on pics of the Maker Thing
11:57 PM rue_mohr: we didn't take pics
11:57 PM zhanx: that is a hard size to find
11:57 PM rue_mohr: bunch of us sitting at a table typing on laptops
11:57 PM rue_mohr: zhanx, no worries I got some from ali, not quite what I wanted, whatever.
11:57 PM zhanx: good enough
11:57 PM rue_mohr: https://www.aliexpress.com/item/10-pcs-Round-Countersunk-Magnet-Ring-12mm-x-5-mm-Hole-4-mm-Rare-Earth-Neodymium/32806457865.html
11:58 PM zhanx: oh i like those