#garfield Logs

Jul 09 2019

12:44 AM rue_mohr: hey
12:49 AM rue_mohr: I need to write a state machine for collecting numbers
02:06 AM rue_bed: hmm, looks like regular code will work
08:21 PM Tom_L: https://youtu.be/5QcYX240U2I
08:21 PM rue_mohr: hey
08:21 PM Tom_L: tried boring it on the mill itself
08:21 PM Tom_L: that helped
08:21 PM rue_mohr: how much do you think the grub screw sets it off?
08:22 PM Tom_L: i'm not sure
08:23 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/thread_mills/Boring_Mill_Holder.jpg
08:23 PM Tom_L: fun working upside down
08:25 PM Tom_L: that was a .500 one that was way off and i bored it out to .625 for one of the thread mills as a test
08:37 PM rue_shop1: its doing pretty good on steel then
08:38 PM Tom_L: i think one problem is it's not _perfectly_ trammed
08:38 PM Tom_L: but it's pretty close
08:38 PM Tom_L: if i baby it, it does ok
08:39 PM Tom_L: the tool table i did for steel seems to work pretty well
08:39 PM Tom_L: i cut that last holder at 100% feed / speed
08:39 PM Tom_L: so it's close
08:41 PM Tom_L: i'll fix up a .500 holder tomorrow probably
08:41 PM Tom_L: if i have a good one i can use
08:44 PM Tom_L: that steel bar i have isn't the best but it's better than the aluminum
08:44 PM Tom_L: the alum tended to gald the threads on the spindle after while
08:58 PM rue_shop1: yea, i'd like to know if there is soemthing commonly available to prevent that
09:02 PM Tom_L: for aluminum? no
09:03 PM Tom_L: it's just best not to use it for things like that
09:04 PM Tom_L: i've got plenty of the steel bar, it's just not the greatest alloy to machine
09:05 PM rue_mohr: that seems to be the problem with cutting alum, if you go too fast, even if you feed rate is right, the extra heat from the cutter starts the metal sticking, and it quickly goes down hill
09:07 PM Tom_L: if your machine can take it, you're better off with higher feedrates. it gets the heat away from the tool
09:08 PM Tom_L: the machines my kid runs run at 400 ipm 18-30k rpm
09:08 PM Tom_L: but they're huge
09:08 PM rue_mohr: cant, I mean, if I have cooling its fine
09:08 PM rue_mohr: but not w/air
09:08 PM Tom_L: you need coolant
09:08 PM rue_mohr: or go slow
09:08 PM Tom_L: dish soap in water spray
09:09 PM rue_mohr: I dont have that fogger thing set up
09:09 PM rue_mohr: I got one for the lathe
09:09 PM Tom_L: mmm
09:09 PM Tom_L: it makes a difference
09:09 PM rue_mohr: yea
09:09 PM rue_mohr: when I was playing with feed rates I was working it out
09:09 PM Tom_L: i had to put an extra O ring on it to keep the tip from vibrating off
09:09 PM rue_mohr: with coolant I could almost double the feed rate
09:10 PM rue_mohr: funny how many wordpress attacks my webpage gets
09:11 PM rue_mohr: I been trying to think of something that could reverse exploit the attacks
09:11 PM rue_mohr: feed them javascript stuff that does things
09:11 PM Tom_L: aluminum is sticky
09:11 PM rue_mohr: yep, copper is worse
09:11 PM Tom_L: copper is stringy
09:11 PM Tom_L: and shit to cut
09:12 PM rue_mohr: that would consitiute worse
09:12 PM Tom_L: z left NY
09:12 PM Tom_L: alone i think
09:12 PM rue_mohr: temporarily...
09:12 PM rue_mohr: ?
09:13 PM Tom_L: he never finished the story
09:13 PM rue_mohr: he said he was offered a big job
09:13 PM Tom_L: in Austin Tx iirc
09:13 PM Tom_L: then he said he applied at Spacex
09:14 PM rue_mohr: he had to go there and set it up, but could work from home
09:14 PM rue_mohr: hmm
09:14 PM Tom_L: just waiting to hear
09:14 PM rue_mohr: I didn't pick up on anything sounding like trouble, but I can be dense
09:15 PM Tom_L: how's your new mill design coming?
09:15 PM rue_mohr: its not
09:15 PM rue_mohr: I cut that base and been pondering the I beam upright
09:15 PM rue_mohr: pondering is not how to get things done
09:16 PM Tom_L: http://tom-itx.no-ip.biz:81/~tom-itx/irc/logs/%23garfield/2019-07-06.html
09:16 PM Tom_L: what i know is there
09:16 PM rue_mohr: its how to "get them right the first time" which is just a carrot race
09:17 PM rue_mohr: huh
09:17 PM rue_mohr: hvac...
09:17 PM rue_mohr: thats a sharp 90 isn't it?
09:17 PM Tom_L: seems like it
09:18 PM Tom_L: leaving those big companies abruptly won't help his future
09:19 PM rue_mohr: but was he working working for them or on-call working for them
09:19 PM rue_mohr: I got the impression he was just stacking up callout jobs
09:19 PM Tom_L: contract
09:19 PM Tom_L: i dunno
09:19 PM Tom_L: on-call more likely
09:20 PM Tom_L: but he'd just opened a couple big doors
09:20 PM Tom_L: any more casting?
09:21 PM Tom_L: the last batch turn out good?
09:21 PM Tom_L: just wondered if you'd tried to use any yet
09:37 PM rue_mohr: no more casting
09:37 PM rue_mohr: not tried any fully yet
09:37 PM rue_mohr: need to set up the drilling jig and do a couple up
09:37 PM rue_mohr: I dont ahve any sprayers to install them in, so there is a lot more backwork to test
09:37 PM rue_mohr: tho with all the new toys, I want to do oen from scratch
10:03 PM Tom_L: maybe the new plastic ones will hold up with more infill
10:03 PM Tom_L: may be cheaper to make
11:02 PM rue_shop1: ?
11:02 PM rue_shop1: triggers?
11:02 PM rue_shop1: if its that close to the line, I'd ratehr use metal