#robotics | Logs for 2016-08-29

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[01:04:43] <z64555> uh. Wisker switch won't cut it? If you need more pressure to trip the switch, just make the foot longer?
[01:04:54] <z64555> veverak, deshipu:
[01:32:43] <rue_bed> so, I have to work out how my H bridge drivers will work
[01:32:55] <rue_bed> I think I'm gonna have a left and right side pwm channel
[01:33:22] <rue_bed> so I either lock one side to 0/100% and operate the other at normal or inverted pwm values,
[01:33:38] <rue_bed> or lock one side to 0 at a time and operate the pwm on the other side
[01:34:00] <rue_bed> but I still dont know if I want to use drive-brake or drive-coast
[01:34:12] <orlock> rue_bed: Printer broke! SHould have a replacent part in days
[01:34:26] <rue_bed> ..3dprinter?
[01:34:33] <orlock> yeah
[01:34:42] <rue_bed> what broke that takes days to fix?>
[01:34:50] <orlock> I cleared a nozzle clog with my reflow gun
[01:34:50] <rue_bed> the bed wiring blew up?
[01:34:57] <rue_bed> er...
[01:35:02] <orlock> and didnt head the hot end before trying to fasten nozzle
[01:35:19] <orlock> snapped the nozzle thread off in the heater block
[01:35:38] <rue_bed> hmm
[01:35:46] <rue_bed> why didn't you use the nozzel heater?
[01:35:56] <rue_bed> pla?
[01:36:08] <orlock> yeah
[01:36:21] <orlock> use nozzle heater to what? heat up for unclog? or before inserting?
[01:36:35] <rue_bed> so dial it up to 230 and push on the plastic manually with the stepper disconnected
[01:36:54] <orlock> i'd been doing that
[01:36:57] <orlock> and cold pulls
[01:36:59] <rue_bed> I have some straightened spring I use to jab into the nozzel if its acting up
[01:36:59] <orlock> no joy
[01:37:14] <rue_bed> bowden?
[01:37:22] <orlock> i got it unclogged, i think
[01:37:29] <orlock> no, direct
[01:37:44] <rue_bed> hmm, any teflon init?
[01:37:47] <orlock> i got it unglogged, issue was purely me being hamfisted putting it back together
[01:37:51] <orlock> yeah, teflon liner
[01:38:22] <orlock> i had not given it a proper clean for a year or so - there ws a fair amount of black cooked dirt in there
[01:39:18] <rue_bed> the teflon can creep
[01:39:24] <rue_bed> and pinch off
[01:39:35] <rue_bed> I think thats why people switched to ptfe
[01:40:06] <rue_bed> ?
[01:40:08] <orlock> It's the same thing? just brand name vs chemical?
[01:40:17] <rue_bed> rrly?
[01:40:34] <rue_bed> my understanding isthat its a different high temp plastic
[01:43:17] <orlock> Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. The best known brand name of PTFE-based formulas is Teflon
[01:45:36] <rue_bed> huh
[17:30:31] <veverak> I figured I like to abuse callbacks
[17:30:34] <veverak> and lambdas
[19:38:45] <anonnumberanon> that means you are an experienced programmer