#garfield Logs

Jan 13 2024

04:27 AM Tom_L: 2°F High 8°F
10:42 AM rue_mohr: -9.5
10:42 AM rue_mohr: c
10:42 AM rue_mohr: its not common at all for it to get this cold
12:33 PM OK9UWU: -10C seems to be the norm around here
12:37 PM OK9UWU: just tried to reverse engineer a 17GHz frontend with some Hittie chips (HMC570 IQ mixer/HMC510 VCO) and an ADF4156 PLL... What a utter pain that is
12:38 PM rue_mohr: -3db @ 17Ghz?
12:39 PM OK9UWU: No, 17GHz downconverter, the chip itself can go up to like 25GHz
12:41 PM OK9UWU: I can't get the PLL to work, unsure if i am just not loading up the registers correctly or if i forgot some voltage somewhere (fed via 26pin ribbon) and i am too tired to get the analyzer out to check the data lines
12:42 PM rue_mohr: downto? ~2MHz?
12:43 PM rue_mohr: -5.5, much more reasonable
12:43 PM rue_mohr: c
12:44 PM rue_mohr: we got lucky, it could have burried us in snow
12:44 PM OK9UWU: It isn't filtered, only limitation is the 1:1 transformer, that goes from 10MHz to 1GHz~,
12:44 PM OK9UWU: so basically, if i have a 16.5GHz LO then i'll get anything from 16.51 to 17.5
12:45 PM OK9UWU: as 10MHz-1GHz on the output
12:45 PM rue_mohr: oh, isnt that range usually converted down to about 2MHz and then converted again to a few kHz?
12:45 PM OK9UWU: No, this has been used in a point to point link, signals there are so wide they need to be converted to atleast few dozen MHz to be properly demodulated
12:45 PM rue_mohr: ah
12:46 PM OK9UWU: this one came out of a product that could do around 1Gbit/s , the bandwidth of the signal there is around 800MHz
12:46 PM rue_mohr: too bad the transformer cant hit 2.4GHz ;]
12:46 PM OK9UWU: I didnt get the modem tho
12:46 PM OK9UWU: I have other tools for that band :)
12:47 PM rue_mohr: ah, but do you have 17GHz remodulators?
12:48 PM OK9UWU: I do have some upconverters aswell yes
12:48 PM rue_mohr: there are a lot of twitter accounts following me that seem to be heavy into politics and war and not technology
12:48 PM rue_mohr: I'm not sure if I should block them
12:49 PM rue_mohr: ok, I'm going to try to go shopping and stuff
12:49 PM OK9UWU: Do they interact with you/spam you or anything like that? If not, just leave them be.
12:50 PM rue_mohr: no, they could be people who are also interested in my posts, but there are almost no other technical posts they follow/like
12:50 PM rue_mohr: 7341 "followers"
12:50 PM rue_mohr: I don't buy it
12:51 PM rue_mohr: (I dont pay for it either)
06:07 PM rue_mohr: doing sprayer repairs
06:07 PM rue_mohr: installing the 3 new heads
06:50 PM rue_shop2: before I can slot the latches I need to sand off the holders and drill them :/
06:50 PM rue_shop2: well, the jig is on the cnc machine for now
06:50 PM rue_shop2: (not in a vise, just on the machien)
07:06 PM Tom_L: spring jig?
07:07 PM rue_mohr: no the slotting one
07:07 PM Tom_L: 1°F out now
07:08 PM Tom_L: oh
07:08 PM rue_mohr: bunch of work before I can test it out
07:08 PM Tom_L: you should set them up so you don't have to move them each time if possible
07:24 PM Tom_L: oh, i was thinking of the spring jig but you meant the A12 jig
08:00 PM rue_shop2: Tom_L, #AVR jan is using your programmer on windows
08:00 PM rue_shop2: I dont know what to set the port to
08:00 PM rue_shop2: -P ....
08:01 PM rue_shop2: Tom_L, #avr??
08:02 PM Tom_L: huh?
08:03 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/boards/USBTiny_Mkii/USBTiny_Mkii_User_manual_index.php
08:04 PM rue_shop2: yea, shes using it command line...
08:04 PM Tom_L: it won't work on the newer studio versions
08:04 PM rue_shop2: would you like to join, she doesn't even know your the one who made it
08:04 PM rue_shop2: why not?
08:04 PM rue_shop2: its avrdude tho
08:04 PM Tom_L: oh
08:04 PM rue_shop2: #avr?
08:04 PM Tom_L: i barely remember anything about those now
08:05 PM rue_shop2: jump in, maybe you can see something
08:05 PM Tom_L: i'd rather not
08:06 PM Tom_L: avrdude -c avrisp2 -P usb -p t26 -U flash:w:main.hex:i
08:06 PM Tom_L: where -p is the part number.. t26 is tiny26, t10 is tiny10, m644 is mega644 etc.
08:06 PM Tom_L: To write the fuses:
08:06 PM Tom_L: avrdude -c avrisp2 -P usb -p t26 -U lfuse:w:0xDD:m -U hfuse:w:0xDF:m -U efuse:w:0x00:m
08:06 PM Tom_L: To write to the internal eeprom:
08:06 PM Tom_L: avrdude -c avrisp2 -P usb -p t26 -U eeprom:w:eeprom.eep:i
08:06 PM Tom_L: To read the contents of the eeprom:
08:06 PM Tom_L: avrdude -c avrisp2 -P usb -p t26 -U eeprom:r:file.txt:i
08:06 PM Tom_L: i wouldn't be any help as i can't remember much about it
08:07 PM Tom_L: i remember her though
08:07 PM Tom_L: does movie props or something
08:08 PM Tom_L: does avrdude work in windows? i can't even remember that
08:08 PM Tom_L: i thought it was another tool for windows
08:09 PM Tom_L: dfu programmer... where was that used?
08:09 PM Tom_L: that's for accessing the programmer itself i think
08:10 PM rue_shop2: the -P isn't working
08:11 PM rue_shop2: windows cant figure out 'usb'
08:11 PM Tom_L: likely windows is too new or something
08:11 PM Tom_L: that was back in win7 etc
08:11 PM Tom_L: i never tested past that
08:12 PM Tom_L: what does avrdude help say?
08:12 PM Tom_L: it appeared in studio as one of their programmers but he had to keep updating the code because they kept changing things
08:13 PM Tom_L: and now studio won't work with them
08:13 PM Tom_L: avrispII i think it was
08:15 PM Tom_L: what avrdude version?
08:16 PM Tom_L: https://avrdudes.github.io/avrdude/7.1/avrdude.pdf
08:17 PM rue_mohr: <Jan> how is this thing not just a serial port
08:17 PM rue_mohr: <rue_shop2> C:\Users\User\.platformio\packages\tool-avrdude\avrdude.exe -v -p atmega328p -c avrisp2 -P USB
08:17 PM rue_mohr: <rue_shop2> tom is the one who made your programmer
08:17 PM rue_mohr: <rue_shop2> its not
08:17 PM rue_mohr: <Jan> isn't it just "-p m328p"
08:17 PM rue_mohr: <rue_shop2> no
08:17 PM rue_mohr: <rue_shop2> tho, that might be an adjustment too
08:17 PM rue_mohr: <rue_shop2> but it shoudl be -c avrisp2
08:17 PM rue_mohr: <Jan> avrdude.exe: ser_open(): can't open device "USB": The system cannot find the file specified.
08:17 PM rue_mohr: <rue_shop2> maybe the -P is not needed
08:17 PM rue_mohr: <rue_shop2> grrr
08:17 PM rue_mohr: <rue_shop2> tom...
08:18 PM rue_mohr: I'
08:18 PM rue_mohr: m trying to debug my 1 bit programmer
08:18 PM rue_mohr: SOMETHING is not right...
08:18 PM Tom_L: page 18 of that pdf talks about -P
08:19 PM Tom_L: there was some driver that had to be installed if i remember right
08:19 PM Tom_L: don't ask me what it was now
08:21 PM Tom_L: it should show up in hardware devices in windows
08:21 PM Tom_L: Newer programmers may ship with the atmega32u2 chip instead of the older at90usb162
08:22 PM Tom_L: no that's for programmer programming...
08:24 PM rue_shop2: she's using your programmer
08:25 PM rue_shop2: it works with the current avrdude under linux
08:25 PM rue_shop2: so its a widnows driver like thing
08:32 PM Tom_L: yeah i don't know about the driver thing anymore
08:33 PM Tom_L: what windows version?
08:34 PM Tom_L: https://github.com/mariusgreuel/avrdude
08:34 PM Tom_L: libusb was the lib you needed
08:34 PM Tom_L: it's mentioned there ^^^^
08:35 PM Tom_L: that fork says you don't need it
08:35 PM Tom_L: and as i recall you had to switch drivers between avrdude and studio
08:50 PM rue_shop2: I'm sure she should be able to read the fuses with the arduino bootloader
08:51 PM Tom_L: they try doing crazy things and i remember her having issues long ago
08:58 PM Tom_L: if you use isp with a bootloader won't it overwrite the bootloader?
08:58 PM Tom_L: pretty sure it will
09:00 PM rue_shop2: yes, but she just wants to read the fuses
09:00 PM rue_shop2: thats how she programmed it so far
09:00 PM rue_shop2: using the arduino bootloader
09:01 PM rue_shop2: now why the hellisn't this 1 bit interface working
09:11 PM Tom_L: i was gonna draw something in cad but forgot what now :/
09:12 PM rue_shop2: heh
09:13 PM rue_shop2: I need foood...
09:13 PM rue_shop2: the waveforms look ok at a glance
09:14 PM rue_shop2: shop is 15c, so I'm cold
09:14 PM rue_shop2: huh, some of the waveforms have glitches
09:15 PM Tom_L: -1°F / 18.3°C
09:15 PM Tom_L: -1°F / -18.3°C
09:15 PM Tom_L: i've been cold all day
09:16 PM Tom_L: and it's windy as heck
09:16 PM rue_shop2: yup, highest today was -4.5c
09:17 PM rue_shop2: the latch line is upside down
09:17 PM Tom_L: ?
09:17 PM rue_shop2: its normally high and goes low
09:17 PM rue_shop2: it should be normally low and go high
09:19 PM Tom_L: how many watt is your spindle?
09:21 PM rue_shop2: 1hp
09:22 PM Tom_L: might be pushing that to use a 1" woodruff cutter
09:22 PM rue_shop2: haha
09:22 PM Tom_L: 750W?
09:22 PM rue_shop2: "HP: 1TE"
09:23 PM rue_shop2: 90VDC 10.6A
09:23 PM Tom_L: the sherline was 90VDC
09:24 PM Tom_L: 600w?
09:24 PM Tom_L: i forget
09:24 PM Tom_L: but i'm quite sure it wouldn't have done well with that cutter
09:24 PM rue_shop2: according to that 954w
09:24 PM Tom_L: it might
09:25 PM Tom_L: you would need the exact right cutter if you did. i'm using every bit of the clearance on mine
09:26 PM rue_shop2: whats it for?
09:26 PM rue_shop2: 1" is pretty big
09:27 PM Tom_L: the slot
09:27 PM rue_shop2: oh
09:28 PM rue_shop2: what if I make a fly cutter?
09:28 PM rue_shop2: have carbide, will grind
09:28 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/cutters/Keyseat_cutter2.jpg
09:28 PM rue_shop2: oooo
09:28 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/cutters/Keyseat_cutter1.jpg
09:28 PM Tom_L: i'm using all of that relief
09:28 PM rue_shop2: a stack of dremel saw blades maybe
09:28 PM Tom_L: not big enough
09:28 PM rue_shop2: hmm
09:29 PM rue_shop2: my long ones are a bit too on the edge
09:31 PM Tom_L: i had to hunt for that one
09:32 PM Tom_L: dremel blades would slip anyway
09:34 PM rue_shop2: I dont think the teeth are deep enough
09:34 PM Tom_L: quite sure of it
09:35 PM rue_shop2: wtf
09:39 PM rue_shop2: I fixed it, but I'm conceptually wrong about something
09:43 PM Tom_itx: https://www.travers.com/product/keo-69120-woodruff-keyseat-cutter-10-096-042
09:44 PM Tom_L: that was the only one i could find that would work
09:44 PM rue_shop2: hu $55 is pretty cheap in context
09:45 PM rue_shop2: ah thats usd
09:45 PM rue_shop2: $82, thats more like what I'd expect
09:45 PM rue_shop2: plus canada tax
09:45 PM rue_shop2: (the extra they charge for selling it to canada)
09:46 PM rue_shop2: but thats not 1/8" thick is it?
09:46 PM rue_shop2: what about a carbide dato cutter?
09:47 PM rue_shop2: no not dato
09:47 PM rue_shop2: for biscuits
09:48 PM Tom_L: that's the one i have and it's HSS
09:48 PM rue_shop2: yea, I sometimes find it easier to get carbide woodworking bits
09:49 PM Tom_L: cutting angles aren't the same
09:49 PM rue_shop2: https://www.amazon.ca/Yonico-14183q-Biscuit-Jointing-Slotting/dp/B01N7TNPXZ
09:49 PM Tom_L: needs a flat bottom face too for clearance or lack of it
09:50 PM rue_shop2: nothing a hacksaw cant take care of :)
09:50 PM rue_shop2: looks like its too thick tho
09:50 PM rue_shop2: I'd have to try to find a 1/8" one
09:50 PM rue_shop2: what do I have...
09:51 PM Tom_L: https://www.youtube.com/watch?v=Ls1XabACpKI&t=5s
09:51 PM Tom_L: almost touching the fixture
09:51 PM Tom_L: that is 1/8" wide
09:51 PM rue_shop2: butterfield
09:51 PM Tom_L: the pic is deceiving
09:51 PM rue_shop2: rock island
09:51 PM rue_shop2: NO 809
09:53 PM rue_shop2: I think its 1-1/8" x 1/4"
09:53 PM Tom_L: 2.2k views on the spring
09:53 PM rue_shop2: haha :)
09:54 PM rue_shop2: should I grind it down to 1/16"
09:54 PM rue_shop2: ?
09:54 PM Tom_L: what's that?
09:54 PM rue_shop2: its one of those cutters
09:54 PM Tom_L: no
09:55 PM rue_shop2: but its 1-1/8" x 1/4"
09:55 PM Tom_L: not enough teeth
09:55 PM rue_shop2: no its like yours
09:55 PM rue_shop2: 14 teeth
09:55 PM rue_shop2: HSS
09:55 PM Tom_L: the one i posted was the _only_ one i found that suited the dimensions required
09:55 PM rue_shop2: butterfield No. 809
09:56 PM rue_shop2: hmm
09:56 PM Tom_L: why get one you have to fix?
09:57 PM rue_shop2: I have it
09:57 PM Tom_L: mmm
09:57 PM rue_shop2: but its 1-1/8" x 1/4"
09:57 PM Tom_L: 14 tooth?
09:57 PM rue_shop2: yes
09:57 PM Tom_L: pic?
09:57 PM rue_shop2: ...
09:57 PM rue_shop2: funny I cant find one online
10:00 PM rue_shop2: in a bit, I'm close to killing a bug
10:01 PM rue_shop2: WTF
10:08 PM rue_shop2: the values in my old code, that dont make sense, work better than the new values I really carefully worked out
10:08 PM rue_shop2: but I still need the line inverted, so, ok
10:08 PM rue_shop2: I'll post ya a pic
10:09 PM Tom_L: heh
10:09 PM rue_mohr: if I can find the camera
10:09 PM Tom_L: i'm not sure you would benefit much with it since you don't have a tool changer
10:10 PM rue_mohr: haha, no , thats a video...
10:10 PM Tom_L: i drill the holes, cut the first half of the profile, and chamfer the edge on the first position
10:11 PM Tom_L: then flip it and cut the 2nd half of the profile and chamfer that side
10:11 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1300605.jpg
10:11 PM rue_mohr: but I like to do 10-20 at once
10:11 PM rue_mohr: so single operation chains are ok
10:11 PM Tom_L: you'd still have to change cutters
10:12 PM Tom_L: it would take alot longer
10:12 PM rue_mohr: 1 operation, 20pcs, next op, 20 pcs
10:12 PM rue_mohr: with this machine I can probably consider more than 20 at a time
10:12 PM Tom_L: you drill the holes later right?
10:12 PM rue_mohr: yea, so
10:12 PM rue_mohr: right now I have 20-25 that are just cut out
10:13 PM rue_mohr: I have to sand the tabs off, and drill them, then slot them
10:13 PM Tom_L: i could spot drill where they go and use that for the edge chamfer
10:13 PM rue_mohr: I just hit it with the rillpress
10:13 PM Tom_L: unless you didn't wanna try the chamfer
10:13 PM rue_mohr: na, I'm ok with the vibration finisher
10:13 PM rue_mohr: heh, you have influenced most of this process :)
10:14 PM Tom_L: but you'd want the hole locations spotted wouldn't you?
10:14 PM rue_mohr: you and your production line experience :)
10:14 PM rue_mohr: I'm ok without it
10:14 PM rue_mohr: I have a template for the holes
10:14 PM Tom_L: mkay
10:14 PM Tom_L: that cutter is .250 wide?
10:15 PM rue_shop2: but its 1-1/8" x 1/4"
10:15 PM Tom_L: you'd have fun cutting that down to size without ruining the hardness
10:15 PM rue_shop2: yea
10:15 PM rue_shop2: 1" drillrod?
10:15 PM rue_shop2: start from scratch?
10:15 PM Tom_L: and i'd wanna check the relief to make sure it's enough
10:16 PM rue_shop2: for $78 I could have enough for 20 cutters
10:17 PM Tom_L: you would want coolant for sure on that
10:17 PM Tom_L: one day we'll get you up to speed
10:18 PM rue_shop2: yea I need to set up that mister
10:18 PM rue_shop2: the airline stuff hasn't been reinstalled
10:19 PM Tom_L: if my mister sits a while i gotta clean it out to make it work good again
10:19 PM rue_shop2: note to self make drainback mister
10:19 PM Tom_L: mine does too
10:19 PM rue_shop2: ooooh, I need food
10:19 PM Tom_L: still builds up
10:19 PM rue_shop2: I'm just into the guts of this project too
10:20 PM Tom_L: it takes me a bit to make the blanks for the part but i still think it saves time overall
10:21 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_setup_blocks.jpg
10:22 PM rue_shop2: yea the blanks take a bit
10:22 PM Tom_L: i think i tried to find some strips of aluminum so all i had to do was cut the length but i'm not sure i ever found any
10:22 PM rue_shop2: well, I cut them out of plate
10:22 PM rue_shop2: with about 10-15 in a plate
10:22 PM Tom_L: i'd have to look
10:22 PM rue_shop2: I just re-zero and keep cutting
10:22 PM Tom_L: the rectangle is what you need to hold it for the slot cutter though
10:23 PM rue_shop2: oh I have something wrong here
10:23 PM Tom_L: i'm not sure the profile shape would hold it well enough
10:23 PM rue_shop2: I dont mind vertically milling it
10:24 PM Tom_L: for your setup it may be the way to keep it
10:25 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/Mods/A12_new_profile_clearance.jpg
10:26 PM Tom_L: the yellow is the actuall cutter diameters for the relief etc
10:26 PM rue_shop2: something is corrupting values
10:26 PM Tom_L: shank, relief and OD
10:26 PM rue_shop2: I need food
10:26 PM Tom_L: ramen
10:26 PM rue_shop2: reflux
10:27 PM Tom_L: the green is the actual cut path
10:27 PM rue_shop2: :)
10:28 PM Tom_L: i started with 3 passes but i think i only do 2 now
10:28 PM Tom_L: not quite brave enough to do one
10:29 PM rue_shop2: lots of bite potential
10:31 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_slot2.jpg
10:31 PM Tom_L: i cut about 2/3 the profile on the first position as you can see with the left part
10:32 PM rue_shop2: something it bit-corrupting the bus
10:32 PM rue_shop2: writePulse(); is the only thing it could be
10:41 PM rue_shop2: oh
10:41 PM rue_shop2: right, there are 2 hidden address lines
10:57 PM rue_shop2: wtf