#garfield Logs

Sep 18 2020

03:53 AM polprog: aandrew: haha really?
11:48 AM aandrew: polprog: what? that I know nothing about HTML?
11:49 AM polprog: no, about the libopencm3 gpio stuff
11:49 AM polprog: my phone client froze and i didnt see the html message until just now
12:06 PM zhanx_workshop_: rue_mohr, not yet i broke my graphite crucible
12:08 PM Tom_L: :(
06:59 PM rue_shop1: oh crap
07:00 PM rue_shop1: zhanx_workshop_, make a steel one?
07:01 PM zhanx_workshop_: when i have time
07:33 PM zhanx_workshop_: rue_shop1, might be faster to order a new one
07:37 PM rue_mohr: did it break when you were heating it?
07:38 PM rue_mohr: I need to re-mask a faceplate
07:38 PM rue_mohr: sleepy
07:38 PM rue_mohr: not sure how to register the positions for the cnc cuts tho
07:39 PM rue_mohr: oh I know, I'll screw down a fence and mill it square
08:13 PM Tom_L: good call
08:13 PM Tom_L: or pins
08:14 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Assembly/Final/Table_holes.jpg
08:15 PM Tom_L: upper right on table... that's what i had in mind there
08:15 PM Tom_L: quick alignment
08:15 PM Tom_L: (never used em yet) :)
08:27 PM rue_mohr: oh yea
08:28 PM rue_mohr: ok
08:28 PM rue_mohr: oh wait tho, I dont have any brass
08:28 PM rue_mohr: pins
08:28 PM rue_mohr: dont like to use anything that a bit doesn't have a chance against
09:09 PM Tom_L: i use steel dowel pins
09:10 PM Tom_L: broken drill bits / mill cutters work too
09:19 PM rue_shop1: I want something that I can accidently hit without ruining the bit
09:19 PM rue_shop1: wood/brass
09:19 PM rue_shop1: aluminum
09:19 PM rue_shop1: I'v hit some of these thigns pretty hard and the machine survived :)
09:22 PM Tom_L: wood dowels
09:22 PM Tom_L: brass is harder than aluminum
09:24 PM rue_shop1: wood is all woobly tho
09:24 PM rue_shop1: brass and alum sound good
09:24 PM Tom_L: yeah you could turn some pins out
09:24 PM rue_shop1: so I have the silver mask painted bits done
09:24 PM rue_shop1: ish
09:24 PM rue_shop1: I might have some standoffs I could use
09:25 PM Tom_L: i'm getting impatient waiting
09:25 PM rue_shop1: yea
09:25 PM Tom_L: but at least i was told
09:25 PM rue_shop1: its like waiting for paint to dry
09:25 PM rue_shop1: oh wait, thats IS what I'm waiting for
09:25 PM * rue_shop1 waits for the paint to dry
09:27 PM rue_shop1: ever worked with babbot?
09:28 PM Tom_L: in what way?
09:28 PM Tom_L: never molded any
09:28 PM Tom_L: pretty soft
09:29 PM Tom_L: had an old truck we replaced a rod in that was babbot bearings
09:30 PM Tom_L: in HS the shop teacher re'did some lathe bearings that were babbot
09:30 PM Tom_L: cut them in with blueing until they fit
09:30 PM Tom_L: i was present for part of that
09:33 PM Tom_L: https://www.youtube.com/watch?v=4nzh1FcUdCg
09:34 PM Tom_L: i've used my share of plastigauge
09:36 PM Tom_L: everybody uses timken preloaded bearings now
09:38 PM rue_shop1: harder than lead?
09:38 PM Tom_L: i'd guess about the same
09:39 PM rue_shop1: hmm
09:39 PM Tom_L: iirc it may have a little tin in it
09:39 PM Tom_L: The alloy mentioned in the patent was 89% Tin, 9% Antimony and 2% Copper, which is amazingly close to today's very popular ASTM B-23 Grade 2 “Babbitt”
09:39 PM Tom_L: maybe no lead?
09:40 PM Tom_L: The alloy mentioned in the patent was 89% Tin, 9% Antimony and 2% Copper, which is amazingly close to today's very popular ASTM B-23 Grade 2 “Babbitt” was originally applied to Tin-base alloys, it is now used to describe bearing metals with Lead or other metals as the major element.
09:40 PM Tom_L: the whole statement
09:41 PM Tom_L: maybe it's changed over time
09:42 PM Tom_L: Lead-based Babbitt is another common bearing material as it will contain 75% or more of lead alloy. Most commonly-used, lead-based Babbitt will also contain tin as well as antimony.
09:42 PM Tom_L: that would be the one i was thinking of
09:50 PM rue_shop1: huh
09:50 PM rue_shop1: where does a person get raw tin tho
09:51 PM Tom_L: 60/40 solder might work
09:51 PM rue_shop1: ...
09:51 PM Tom_L: less the antimony
09:52 PM Tom_L: https://www.amazon.com/Best-Sellers-Industrial-Scientific-Tin-Metal-Raw-Materials/zgbs/industrial/6469705011
09:52 PM rue_shop1: oh science store, yea
09:53 PM Tom_L: https://www.amazon.com/Rotonickel-Based-Babbitt-Ingot-Grade/dp/B001QUZ7W4
09:53 PM Tom_L: https://www.amazon.com/Coppered-Babbitt-Copper-Ingot-Bearings/dp/B001QUVSGI
09:53 PM Tom_L: ready made
09:53 PM Tom_L: depending on the type you want
09:54 PM rue_shop1: Price: $36.99 + $37.00 shipping
09:54 PM rue_shop1: er, no
09:54 PM rue_shop1: 60/40
09:54 PM Tom_L: i get free delivery here
09:54 PM rue_shop1: hey
09:54 PM rue_shop1: I might be able to get a shipment arranged from here
09:54 PM Tom_L: but i've got prime
09:55 PM rue_shop1: if I can, would you be good with it?
09:55 PM Tom_L: not imediately
09:55 PM Tom_L: but it's a possibility
09:55 PM rue_shop1: I'm pondering how I can come down
09:55 PM rue_shop1: it sounds like I can get a local shipper to arrange it
09:55 PM Tom_L: that's a long trip
09:55 PM Tom_L: i know what 18hrs is like
09:56 PM rue_shop1: if you just box it all on a pallette, and I can write the inventory
09:56 PM rue_shop1: well, I'm slow and get lost easy
09:56 PM rue_shop1: it'd be 2 days for me
09:56 PM rue_shop1: each way
09:56 PM Tom_L: that would be making good time in 2 days
09:56 PM rue_shop1: I'm REALLY SKILLED at turning the wrong way
09:56 PM Tom_L: she usually navigates
09:56 PM rue_shop1: 2 days in, 2 days out
09:57 PM rue_shop1: yea, I wouldn't have a navigator
09:57 PM Tom_L: or lets google do it
09:57 PM Tom_L: i haven't been motivated to dig thru it again just yet
09:58 PM Tom_L: it's just sitting in boxes here and there
09:58 PM Tom_L: and if i start digging again... well you know how that ends up
09:59 PM rue_shop1: also, if I was going to come in, I'd have to mask it as a commercial trip
09:59 PM rue_shop1: otherwise I dont get past the border
09:59 PM rue_shop1: apparently
10:00 PM Tom_L: you may not get in or out anyway
10:23 PM rue_shop1: as far as cnc goes, this proejct it compelx
10:24 PM rue_shop1: I got bit changes
10:24 PM rue_shop1: special registrations...
10:24 PM rue_shop1: mostly I just do cutouts
10:25 PM Tom_L: i used to break the changes up into separate files before i used linuxcnc
10:26 PM rue_shop1: yea, I am
10:26 PM rue_shop1: I dont know if I have a feed hold
10:27 PM rue_shop1: no
10:27 PM rue_shop1: I dont cause thats spooler
10:27 PM rue_shop1: my spooler doesn't look at the content
10:27 PM rue_shop1: it just waits for "ok" and sends another line
10:29 PM Tom_L: oh yeah, you were gonna fix that...
10:29 PM rue_shop1: my fix list is long
10:31 PM Tom_L: probably too long
10:32 PM Tom_L: that's why i limit what i do now
10:33 PM Tom_L: once the cnc is complete i'm not sure what i'll take on next
10:36 PM rue_mohr: cnc projects
10:37 PM rue_mohr: make art things, that test different design tricks
10:37 PM rue_mohr: nobody will know
10:37 PM zhanx_workshop_: so guess what?
10:37 PM Tom_L: i give up
10:37 PM Tom_L: what?
10:38 PM rue_mohr: when!
10:38 PM zhanx_workshop_: I made it on the history channel as the overwatch marksman
10:38 PM Tom_L: hah
10:38 PM rue_mohr: hah cool
10:38 PM rue_mohr: I wonder if I'll ever have the history channel
10:39 PM Tom_L: you don't?
10:39 PM rue_mohr: I dont have any channels
10:39 PM Tom_L: mmm
10:39 PM zhanx_workshop_: Fallujah in 04
10:39 PM rue_mohr: I gave up TV, like.... 6? years ago?
10:39 PM rue_mohr: maybe longer
10:39 PM Tom_L: i don't watch much but they do
10:40 PM rue_mohr: the new phone system computer cpu heatsink emits a loud like 440Hz, and its going to drive me nuts
10:41 PM zhanx_workshop_: they were yelling at me to tell me they calling fire, i never heard it
10:43 PM rue_shop2: ok, I have to mirror this one...
10:43 PM rue_shop2: reposition that one...
10:45 PM rue_shop2: and rotate it..
10:45 PM Tom_L: what part?
11:00 PM zhanx_workshop_: still cant believe i am on the history channel, only 10 secs worth but still there
11:01 PM rue_shop1: how did you land it?
11:01 PM rue_shop1: misc?
11:01 PM zhanx_workshop_: misc
11:01 PM zhanx_workshop_: a buddy called me to let me know
11:02 PM rue_shop1: cool
11:02 PM rue_shop1: was he in there?
11:03 PM zhanx_workshop_: he filmed it
11:03 PM rue_shop1: hah cool
11:05 PM zhanx_workshop_: i am doing overwatch behind the the long gun and they called for fire and tried to warn me, i was too far out etc
11:13 PM rue_shop1: 2 machines going , I think I need earmuffs
11:41 PM rue_shop1: I especially like it when I check the cnc and the bit is still there cutting