#garfield Logs
Sep 14 2018
#garfield Calendar
12:14 AM rue_mohr: did you get printer parts!!!
12:27 AM rue_mohr: anyone borred?
07:29 PM Tom_L: find your motor mount?
07:43 PM rue_mohr: exhaust flange, no, I'll go measure one
07:43 PM rue_mohr: but I got a light letter!
07:44 PM rue_mohr: look really good
07:44 PM Tom_L: i forgot how many i sent
07:44 PM Tom_L: they'll need a little deburring
07:44 PM rue_mohr: how many lines? its 7
07:44 PM rue_mohr: sure whatever
07:45 PM Tom_L: try one and see if they work ok
07:45 PM Tom_L: 30 cpr
07:45 PM rue_mohr: look like you were playing with a few of the params
07:45 PM Tom_L: how so?
07:45 PM Tom_L: one may be odd from the rest
07:45 PM Tom_L: i moved the slot closer to the edge on the rest
07:45 PM rue_mohr: I saw some variation of disc thickness and holding tab width
07:46 PM Tom_L: i had them too close together and some tabs let loose but was able to salvage them
07:46 PM Tom_L: i re'did the program since
07:46 PM rue_mohr: 12 degree
07:46 PM Tom_L: yeah something like that
07:46 PM rue_mohr: 3 in quadrature I recon then
07:47 PM Tom_L: was there a postmark on it?
07:47 PM Tom_L: i forgot when i sent them
07:47 PM rue_mohr: I'd have given it 2 tabs, I find that things like to lift and wrap themselfs around the bit
07:48 PM Tom_L: naw it works fine with one i just had them too close and the material cut thru on the middle ones in the grid
07:48 PM Tom_L: you may need to ream the hole
07:49 PM rue_mohr: heh that'd be a challange
07:49 PM Tom_L: why?
07:49 PM rue_mohr: no ledgible postmark, its mostly an ink smear
07:49 PM Tom_L: oh well
07:49 PM rue_mohr: holding them to do a ream
07:49 PM Tom_L: maybe 2 weeks?
07:50 PM rue_mohr: I think so
07:50 PM Tom_L: you may just be able to hand ream them
07:50 PM rue_mohr: the middle was ... 4mm or 5?
07:50 PM Tom_L: 5 iirc
07:51 PM rue_mohr: bah, battery is dead
07:51 PM rue_mohr: k
07:51 PM Tom_L: i can pull up the model
07:51 PM rue_mohr: iirc I was using 4 for them,
07:51 PM Tom_L: .0984 radius
07:51 PM rue_mohr: 5mm is kinda crazy for a small encoder
07:52 PM Tom_L: .1968
07:52 PM rue_mohr: nup, says 2.5mm radius
07:52 PM rue_mohr: zippo:/files/programming/tempscrape# units 0.0984inch mm
07:52 PM rue_mohr: * 2.49936
07:52 PM rue_mohr: thats fine
07:53 PM rue_mohr: I'm gonna take a 2 hr nap and dig into this exhaust flange
07:54 PM Tom_L: i can make more if you want em
07:54 PM Tom_L: smaller OD too if needed
07:55 PM Tom_L: ID
07:55 PM Tom_L: sry
07:55 PM rue_mohr: I have yet to successfully design the rest!
07:56 PM rue_mohr: I have alot of it
07:56 PM rue_mohr: not a whole thing yet
07:56 PM Tom_L: are the ir detectors screw mounted?
07:56 PM Tom_L: or pcb
07:57 PM rue_mohr: well, thats part of the fun
07:57 PM rue_mohr: the best candidates are pcb
07:57 PM rue_mohr: tho, diy is lingering as one of the main viable options
07:57 PM rue_mohr: http://ruemohr.org/~ircjunk/robots/sparrow1/pan.png
07:58 PM rue_mohr: this is what I'm chewing on at the moment
07:58 PM Tom_L: what is it?
07:58 PM rue_mohr: its a new pan for the 2 stroke engine for the mecha
07:58 PM Tom_L: exhaust mount?
07:58 PM rue_mohr: its a few things
07:58 PM Tom_L: ahh i remember that somewhat
07:58 PM rue_mohr: it goes around the output shaft, feeds and returns the cooling water, and manifolds the exhaust
07:59 PM rue_mohr: its my "too lazy to get out of the bedroom? ok, work on this then" project
07:59 PM Tom_L: that's all hand coded in stl?
07:59 PM rue_mohr: it'll just be a matter of time till I need to focus on the encoder thing again
08:00 PM rue_mohr: its a mix of dxf and hand code
08:00 PM rue_mohr: linear_extrude(height=8, convexity=5) {
08:00 PM rue_mohr: import(file=outline, layer="0", $fn=180);
08:00 PM rue_mohr: }
08:00 PM Tom_L: ur nuts
08:00 PM Tom_L: i'd do that in catia for sure or sw
08:00 PM rue_mohr: your stating the obvious
08:01 PM rue_mohr: its good, I just need to adjust the flipping exhaust flange so it matches something in the real world
08:01 PM Tom_L: is that a complex curve on the top or just follows the flange?
08:01 PM rue_mohr: I'll do a test print
08:01 PM rue_mohr: its a 3 way projected union
08:01 PM rue_mohr: thats hollowed out by another 3 way projection
08:02 PM Tom_L: i did some of those in practice but nearly forgot how
08:03 PM rue_mohr: http://ruemohr.org/~ircjunk/robots/sparrow1/pan2.png
08:03 PM rue_mohr: its FAR from the most complex thing I'v made
08:03 PM rue_mohr: its a moderate walk in the park
08:04 PM rue_mohr: I'm much more concerned about how the hell I cast it
08:05 PM Tom_L: machine it
08:05 PM rue_mohr: I cant
08:05 PM rue_mohr: besides, I want to know how to cast 3d prints!
08:07 PM rue_mohr: heh, I'm all excited about the encoder project now :)
08:07 PM Tom_itx: http://tom-itx.no-ip.biz:81/~webpage/cnc/practice_drawings/x_problem3.jpg
08:07 PM Tom_L: that may have used it, i can't remember right now
08:08 PM Tom_itx: http://tom-itx.no-ip.biz:81/~webpage/cnc/practice_drawings/x_problem106.jpg
08:08 PM Tom_L: that was fun
08:08 PM rue_mohr: huh
08:08 PM Tom_itx: http://tom-itx.no-ip.biz:81/~webpage/cnc/practice_drawings/problem32.jpg
08:08 PM Tom_L: that just followed a path
08:09 PM rue_mohr: interesting
08:09 PM rue_mohr: bit more to them
08:10 PM Tom_itx: http://tom-itx.no-ip.biz:81/~webpage/cnc/practice_drawings/Problem23.jpg
08:11 PM Tom_L: that was a little complicated even though it looks simple
08:11 PM Tom_itx: http://tom-itx.no-ip.biz:81/~webpage/cnc/practice_drawings/Problem52.jpg
08:12 PM Tom_L: some of em were easy just time consuming
08:44 PM furrywolf: https://humboldt.craigslist.org/tls/d/air-compressor-two-pumps-one/6698019783.html oh, that's cute... if I needed a compressor, I would totally get that.
08:45 PM Tom_L: are those inlet filters?
08:45 PM furrywolf: I believe so.
08:45 PM Tom_L: looks like it's plumbed to be 2 stage
08:46 PM Tom_L: maybe not
08:48 PM Tom_L: naw, just for volume
08:50 PM Tom_L: never thought of hiding a phone number from bots that way
09:32 PM rue_bed: filters out stupid peo;ple too
09:38 PM Tom_L: take lots of pics when you cast that from a print
09:38 PM Tom_L: do a low infill on the print so it evaporates?
09:41 PM rue_bed: mmm not sure
09:41 PM rue_bed: might make/do it on a wax printer
09:42 PM rue_bed: there is lost pla, but....
09:57 PM zhanx: electrician screwed me today
09:57 PM rue_mohr: RG6?
09:57 PM zhanx: I had to run all new cabling
09:58 PM rue_mohr: rg6<-> cat6?
09:58 PM zhanx: cat5
09:58 PM rue_mohr: ah
09:58 PM zhanx: he used some quick clamp thing in the ceiling
09:58 PM rue_mohr: all runs were 3' short?
09:58 PM rue_mohr: ?
09:58 PM zhanx: cut all the cables to dead shorts
09:59 PM rue_mohr: ziptie with anchor?
09:59 PM zhanx: no it was a metal stand off
09:59 PM rue_mohr: like, actaully squeezed the cables till they shorted?
09:59 PM rue_mohr: or they shorted the way he cut the ends
10:00 PM zhanx: it was weird and yes he ziptie'd the cables with an anchor above the ceiling also
10:00 PM zhanx: squeeze till shorted
10:00 PM rue_mohr: wow, thats hard to do
10:00 PM zhanx: like impossible I thought
10:00 PM rue_mohr: I'v seen cat5 run over with a tractor 3 times a day for weeks on end and survive
10:01 PM rue_mohr: that said, I tell the guys to NOT STEP ON IT
10:01 PM zhanx: all new runs and all the run secure as hell so pulling new lines was a pita
10:02 PM rue_mohr: hmm
10:02 PM zhanx: needless to say the General Contractor is not happy
10:02 PM rue_mohr: rare
10:02 PM zhanx: bet i never see it again
10:02 PM rue_mohr: I'm curious to the anchor he sued
10:02 PM rue_mohr: used
10:02 PM rue_mohr: technically zipties are forbidden for data
10:03 PM zhanx: I was confused at first, I punched down the rack and then when to the camera to pin the cables and they all were shorted
10:03 PM rue_mohr: you MUST USE velcro
10:03 PM zhanx: I have lots of velcro
10:03 PM rue_mohr: yea, zipties are forbidden, I use them anyhow, but knowledgably
10:03 PM zhanx: So i punched down 31 cables for camera for no reason
10:03 PM rue_mohr: wow
10:04 PM zhanx: yea the cables all came in the equipment via conduit
10:04 PM zhanx: but that was just for the ceiling looks
10:04 PM rue_mohr: like if you have a large bundle going around a sharp corner, you use a bunch to spread out the load, make sure there is no point load on the inner lines
10:05 PM zhanx: either way I am not done, I am out of cable and ends
10:05 PM rue_mohr: we use a lot of the screw-anchor straps, but we never tighten them
10:05 PM zhanx: I do that also rue, float it
10:05 PM zhanx: like a 2" loop
10:06 PM rue_mohr: yea, I have the guys always leave them just latched,
10:06 PM rue_mohr: leave a raceway for the cables to follow (there will always be more later)
10:06 PM zhanx: not ziptie'd hard and screw to the ceiling
10:06 PM zhanx: I was like who does that
10:06 PM rue_mohr: describe what he used a bit
10:06 PM rue_mohr: metal...
10:07 PM zhanx: then for the longer runs, pipe holders on the wall
10:07 PM zhanx: metal 3/4" pipe clamps
10:07 PM rue_mohr: like the half swaing-away type?
10:07 PM zhanx: no the 2 screw type
10:08 PM rue_mohr: thats what he sued?
10:08 PM zhanx: well half swings away
10:08 PM zhanx: yes
10:08 PM rue_mohr: oooh, like...
10:08 PM zhanx: let me google it
10:09 PM rue_mohr: https://images-na.ssl-images-amazon.com/images/I/51EZhcTurwL._SX425_.jpg
10:09 PM rue_mohr: those!?
10:09 PM zhanx: like this https://assets.supply.com/images/productimages/sloan-0310090.jpg;width=250;height=250;bgcolor=White;quality=65;;scale=both;
10:09 PM rue_mohr: wow, crazy
10:09 PM zhanx: but combo of yours and mine
10:09 PM rue_mohr: thats for pipe...
10:10 PM zhanx: I know
10:10 PM zhanx: he ran galvanized outside and plain inside
10:10 PM zhanx: the GC had to help me run the cables with his little guy in the eves
10:11 PM rue_mohr: and, after all the school saying DONT EVEN SNEEZE ON TEH WIRE he mashed tooo many in those!
10:11 PM zhanx: the one with all the wires was flat, like a 3" one beat with a hammer
10:11 PM rue_mohr: HAH!
10:12 PM zhanx: needless to say, I was suppose to be there 2 hours
10:12 PM zhanx: I got there at 7 am
10:12 PM rue_mohr: yea
10:12 PM zhanx: I left at 9:22 pm
10:12 PM rue_mohr: we have a few cat6 splicers, $10ea
10:13 PM zhanx: 90% of security system is up and no splicers per client, said run new cable
10:13 PM rue_mohr: https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQIXxORPup4NFb9c3tGh0VpklPYHeZLjFUf8r2geLpSmbYYPv2b8w
10:13 PM rue_mohr: ?
10:13 PM zhanx: no that is a black pipe hanger
10:13 PM rue_mohr: yea, the splicers are really a last resort
10:14 PM rue_mohr: huh, crazy
10:14 PM zhanx: http://www.jorgensonrolling.com/images/Pipe-Clamps.jpg
10:14 PM zhanx: that for the channel but mashed flat
10:15 PM rue_mohr: !!!!
10:15 PM zhanx: it was mounted on unistrut
10:15 PM rue_mohr: wow
10:15 PM rue_mohr: wonder if they had a green apprentice do it
10:16 PM zhanx: rue i was shocked I almost had enough stuff on hand to do most of the job over again
10:16 PM rue_mohr: heh
10:16 PM zhanx: or someone that said fuck it
10:16 PM zhanx: that bill is gonna cost them
10:17 PM zhanx: I have 700 in materials in it
10:17 PM zhanx: which for me is ALOT
10:17 PM rue_mohr: ~3 boxes of wire
10:17 PM rue_mohr: ends aren't cheap,
10:17 PM rue_mohr: it all stacks up fast
10:17 PM zhanx: i need 2 more boxes to finish it also
10:18 PM zhanx: yep
10:18 PM rue_mohr: what brand ends you using?
10:18 PM rue_mohr: we usually use leviton here
10:18 PM rue_mohr: but also use tyco and wirewerks
10:18 PM rue_mohr: different price scales
10:19 PM zhanx: had to grab the pack, tycos
10:19 PM rue_mohr: tyco is good
10:19 PM zhanx: its what is sold at the local supply
10:19 PM rue_mohr: you have the silly expensive tool?
10:20 PM zhanx: which ones?
10:20 PM rue_mohr: the cast aluminum one?
10:20 PM zhanx: oh no
10:20 PM rue_mohr: I thik they want like $300 for it, I got mine witht eh trainign
10:20 PM zhanx: I have 2 southwest
10:20 PM zhanx: and 1 off brand that works like a champ
10:21 PM rue_mohr: https://images.datacomtools.com/idealdatacomtools/images3/amp/Connectors/1725150-1.jpg
10:21 PM rue_mohr: k
10:21 PM rue_mohr: their stupid-expensive
10:21 PM zhanx: yep
10:21 PM rue_mohr: nice tool tho
10:21 PM zhanx: my southwest is lite
10:21 PM rue_mohr: I'd say it speeds me up
10:22 PM rue_mohr: only use it on the ct6 tho
10:22 PM zhanx: I get paid by the hour and most of the time i am fixing someone else's mistake
10:22 PM rue_mohr: hey, there is another brand that is exactly like tyco..
10:22 PM zhanx: like today
10:23 PM Tom_L: z u still self employed?
10:23 PM zhanx: yep
10:23 PM rue_mohr: cant find it, hope I didn't throw it out
10:24 PM rue_mohr: kept the bag
10:24 PM zhanx: Tom_L, booked all next week at that
10:24 PM zhanx: and tomorrow
10:24 PM rue_mohr: it IS tyco, just under a different name
10:24 PM Tom_L: finishin this one tomorrow?
10:24 PM zhanx: this one and the two i was suppose to get too today
10:25 PM zhanx: I picked up the McDonalds internet cutover for the area, thats 5 days next week, plus I have 7 other jobs lined up
10:26 PM rue_mohr: cat find it, drat
10:26 PM zhanx: X-mas is coming along with snow so work will slow down
10:26 PM rue_mohr: zhanx, is most of the stuff people are doing 5e or 6?
10:26 PM zhanx: 5e
10:26 PM rue_mohr: all our suppliers try to say that everyone is going 6, but...
10:26 PM zhanx: all the stuff next week is 5e and its for AT&T
10:27 PM rue_mohr: there is some 6 that goes around, mostly 5e
10:27 PM zhanx: not here they aren't
10:27 PM rue_mohr: yea, not here either
10:27 PM rue_mohr: I mean, the hospital uses all 6
10:27 PM zhanx: for the cost they don't care
10:27 PM rue_mohr: the rcmp demanded all 6
10:27 PM zhanx: i can see that for a hospital
10:27 PM Tom_L: ever run any with teflon jacket?
10:28 PM zhanx: not yet
10:28 PM Tom_L: that's plenum safe right?
10:28 PM Tom_L: or that's what i thought anyway
10:28 PM zhanx: plenum safe is not teflon unless I am wrong
10:28 PM zhanx: I only buy plenum safe so it covers all the bases
10:29 PM rue_mohr: ft6 is not teflon
10:29 PM rue_mohr: its just low smoke
10:29 PM rue_mohr: ft4 non-plunum ft6 plenum
10:29 PM zhanx: i would say let me grab a box
10:29 PM zhanx: but I am out
10:29 PM Tom_L: doesn't matter...
10:29 PM Tom_L: just wondered
10:30 PM rue_mohr: iirc we torched some once at work, too see the difference
10:30 PM zhanx: Still wondering why this HOUSE today needs all this security stuff in it
10:30 PM rue_mohr: cant quite remember the result, more flamable then we thought tho
10:31 PM Tom_L: got a couple of those magnetic usb cables to try today
10:31 PM Tom_L: now i wait a month
10:31 PM rue_mohr: k
10:31 PM zhanx: Tom_L, I love them fyi
10:31 PM rue_mohr: hah
10:31 PM rue_mohr: or 3 if in canada
10:31 PM Tom_L: i wondered if anybody uses them
10:31 PM zhanx: got 2 for the kids tablets
10:31 PM rue_mohr: I have 3 mroe shipments over the 120 days of purchase protection
10:31 PM zhanx: they can't break the connectors now
10:31 PM Tom_L: mine plug and unplug so much...
10:32 PM Tom_L: i figured i'd try a couple
10:32 PM zhanx: let me look up the ones I got 2 months ago
10:33 PM Tom_L: these were just cheap chinese junk dressed up i'm sure
10:33 PM Tom_L: i know some have better magnets but dunno which ones
10:33 PM rue_mohr: EEEK my credit card changed and the building supplies store cant get their money!!!
10:33 PM zhanx: these were on the flash deals for a buck a piece so i got two, and its cool the work regaurdless of up
10:34 PM zhanx: https://www.aliexpress.com/item/Suntaiho-LED-Magnetic-USB-Cable-Magnet-Plug-USB-Type-C-Cable-Micro-USB-Cable-USB-Cable/32851256788.html
10:34 PM Tom_L: i got the whole cord type
10:34 PM rue_mohr: ok, rain or no rain, thunder or rain, or no rain, I have to go measure an exhaust flance
10:34 PM rue_mohr: flange
10:34 PM Tom_L: similar price
10:35 PM zhanx: i didn't see the whole cord ones
10:35 PM rue_mohr: (R | ~R) | (T | ~R) | ~R ...
10:35 PM zhanx: but those work great for the kids and they can just let it clip on with the magnet without worry
10:35 PM Tom_L: https://www.aliexpress.com/item/Essager-Magnetic-USB-Cable-For-iPhone-Type-C-Magnet-Charger-Data-Charging-Charge-Micro-USB-Cable/1000006327495.html?spm=2114.search0104.3.128.771413bbx6Scti&ws_ab_test=searchweb0_0,searchweb201602_2_5017015_10065_10068_10130_5017315_10547_10546_10059_10548_10545_10696_100031_10084_10083_5017115_10103_451_10618_452_10307_5017215,searchweb201603_56,ppcSwitch_5&algo_expid=a7307ebd-f97b-4273-98e1-c57dac6118b3-15&algo_pvid
10:35 PM Tom_L: that may be what i got
10:36 PM rue_shop3: did I mention pajamas...
10:36 PM rue_shop3: Tom_L, you can stop at the ?
10:36 PM Tom_L: https://www.aliexpress.com/item/Essager-Magnetic-USB-Cable-For-iPhone-Type-C-Magnet-Charger-Data-Charging-Charge-Micro-USB-Cable/1000006327495.html
10:36 PM zhanx: I was gonna say that
10:36 PM Tom_L: happy?
10:36 PM zhanx: Tom I think i like mine better for kids tugging on the cable itself
10:37 PM Tom_L: one needed a new cord anyway
10:37 PM zhanx: that way if the cable goes bad, i can swap it to another one
10:37 PM Tom_L: true
10:38 PM Tom_L: it was either that one or another that you can just order the ends too
10:38 PM Tom_L: for multiple devices
10:38 PM zhanx: yep
10:39 PM zhanx: either way if you don't like yours when they come in, try the ones I linked
10:39 PM zhanx: the magnet holds well
10:39 PM zhanx: well I oops
10:40 PM zhanx: wednesday, I need to be an hour south at 9am for about an hour job, at 10 am I need to be 2 hours north
10:40 PM rue_shop3: 40mm bolt pattern...
10:40 PM rue_shop3: 1/4" bolts
10:41 PM Tom_L: z what cable end did yours come with? to the cable i mean
10:41 PM Tom_L: c or micro
10:41 PM zhanx: I got micro
10:41 PM Tom_L: yeah i got a bunch of those
10:41 PM zhanx: and the micro plugs in one side and the other is the mag
10:41 PM Tom_L: i may get some of those if these work out good
10:41 PM Tom_L: right
10:42 PM zhanx: i need to order a few more
10:42 PM Tom_L: you specify the end when you order right?
10:42 PM Tom_L: both ends
10:42 PM zhanx: one end I think, let me double check it
10:43 PM rue_shop3: 26mm hole as per 3/4"
10:43 PM Tom_L: rue_shop3, what are you working on?
10:44 PM zhanx: Tom_L, yea they all are micro on the non mag end
10:44 PM rue_mohr: <rue_shop3> 40mm bolt pattern...
10:44 PM Tom_L: catia does patterns great
10:44 PM Tom_L: even or odd spaced
10:45 PM rue_mohr: but can it draw circles???
10:45 PM rue_mohr: :)
10:45 PM Tom_L: absolutely
10:45 PM Tom_L: multiple rows
10:47 PM zhanx: never heard of it
10:47 PM Tom_L: what? catia?
10:47 PM zhanx: yep
10:47 PM Tom_L: same company that owns solidworks
10:48 PM Tom_L: high end cad
10:48 PM zhanx: i googled it
10:48 PM Tom_L: dassault systems
10:48 PM Tom_L: it's for large business'
10:49 PM rue_mohr: hmm, this just dosn't look right
10:49 PM zhanx: not something I have time to learn
10:49 PM Tom_L: but they teach it here at the vo'tech so i took a couple classes
10:49 PM rue_mohr: most small thread-in mufflers are 3/4" aren't they?
10:49 PM Tom_L: my kids have taken more than me
10:49 PM Tom_L: rue i think so
10:49 PM Tom_L: that or half
10:49 PM zhanx: 3/4" for small engine
10:50 PM Tom_L: briggs may be half inch
10:50 PM Tom_L: i dunno
10:50 PM zhanx: weedeaters are 1/2"
10:50 PM rue_mohr: oh thats not too bad...
10:50 PM zhanx: wait, why do you need that many?
10:51 PM rue_mohr: that many?
10:51 PM rue_mohr: arg, thats big
10:51 PM zhanx: I was thinking the 1/4" holes as 3/4"|
10:52 PM rue_mohr: no, no the main hole
10:52 PM zhanx: I was like wait you are doing a circle of them?
10:52 PM rue_mohr: the bolts are 1/4"
10:52 PM zhanx: tired
10:52 PM rue_mohr: my mental scale is off and its causing what I'm designing to not look the way it does in my head
10:53 PM rue_mohr: this is a 2HP 2stroke
10:53 PM zhanx: k
10:53 PM rue_mohr: I'm using the same flange as found on a 3.5Hp 4 stroke B&S
10:53 PM Tom_L: it needs an expansion pipe then
10:53 PM Tom_L: scavange more hp
10:54 PM rue_mohr: sure, right now, I just need to get it off the engine
10:54 PM rue_mohr: as per that image I was showing ya
10:54 PM Tom_L: rusted on?
10:54 PM rue_mohr: http://ruemohr.org/~ircjunk/robots/sparrow1/pan.png
10:54 PM rue_mohr: that flange is too small, I corrected it
10:55 PM rue_mohr: that flange is about 1/2"
10:55 PM rue_mohr: the 3/4" looks huge on it
10:55 PM Tom_L: heh
10:56 PM Tom_L: germany is gonna stop making bugs
10:56 PM Tom_L: 2019 iirc
10:56 PM rue_mohr: wow
10:56 PM rue_mohr: its been a long run
10:56 PM zhanx: in mexico only
10:56 PM rue_mohr: they aren't gonan start just making electric ones?
10:56 PM zhanx: still making then south of that
10:56 PM Tom_L: i told the mrs they should do a one off run of the originals one last time
10:56 PM Tom_L: they would make bank
10:57 PM zhanx: I would get one
10:57 PM Tom_L: i had a 68
10:57 PM Tom_L: no dings
10:57 PM rue_mohr: http://ruemohr.org/~ircjunk/robots/sparrow1/pan3.png
10:58 PM Tom_L: put a southwind heater in it
10:58 PM rue_mohr: num num num num
10:58 PM rue_mohr: the holes are undersized
10:58 PM zhanx: big man in a little car!
10:58 PM Tom_L: you're gonna end up with too much hung weight on that
10:59 PM rue_mohr: not if I take a flex off it
10:59 PM rue_mohr: or use a compression ball fitting
10:59 PM Tom_L: why not come out the top
10:59 PM rue_mohr: like the S10
10:59 PM Tom_L: with the bigger flange
10:59 PM rue_mohr: thats the bottom
10:59 PM Tom_L: well bottom then
10:59 PM Tom_L: the top of that part
10:59 PM rue_mohr: that larger step in the flange is a 3/4"
10:59 PM Tom_L: i figured that
11:00 PM rue_mohr: it would be better for me if the exhaust came out in that direction
11:00 PM Tom_L: why not make it in 2 pieces too and bolt the hat to the base
11:00 PM rue_mohr: why? dont need to
11:00 PM Tom_L: it would be replaceable then
11:01 PM Tom_L: when you screw it up
11:01 PM rue_mohr: hahah
11:01 PM rue_mohr: hmm
11:01 PM Tom_L: just gasket the top to the base
11:01 PM Tom_L: with studs
11:01 PM rue_mohr: mmm aluminum, ickg
11:02 PM rue_mohr: this could work
11:02 PM rue_mohr: its just not like my mental picture
11:03 PM Tom_L: is it easy to change parameters in openscad?
11:03 PM Tom_L: that's what you're using right?
11:03 PM rue_mohr: yup
11:03 PM rue_mohr: most of its from dxf outlines tho
11:03 PM rue_mohr: that flange is just extrusions
11:03 PM Tom_L: yeah
11:03 PM Tom_L: i figured that
11:03 PM rue_mohr: of 2d profiles
11:04 PM Tom_L: how thick is the base?
11:04 PM Tom_L: 1/2" ?
11:05 PM rue_mohr: all the origional japanese design was 6.5mm, so I'v gone with that
11:08 PM Tom_L: thin
11:08 PM Tom_L: 1/4" or so
11:09 PM rue_mohr: that whole base height is 14mm
11:09 PM rue_mohr: the thin walls you see are 6.5mm
11:09 PM rue_mohr: its a small engine
11:09 PM rue_mohr: really small
11:10 PM rue_mohr: I'm wondering if the aluminum will be ok with the exhaust firing on it like this
11:10 PM Tom_L: the base with the 6 holes not counting the boss holes is 14mm thick?
11:10 PM rue_mohr: the origional was spraying water everywhere
11:10 PM rue_mohr: yes
11:10 PM rue_mohr: the two bosses are cooling water ports
11:10 PM Tom_L: they use aluminum heads all the time on things
11:10 PM rue_mohr: ok, fair enough
11:11 PM Tom_L: but the flange will get hot since it stands away from the rest
11:11 PM rue_mohr: tho I'v had a B&S melt the threads out of the engine on the exhaust
11:11 PM Tom_L: ^^
11:11 PM rue_mohr: I could fin it, but there is no airflow, its water cooled
11:12 PM rue_mohr: so, ... water jacket?
11:12 PM Tom_L: water does alot to cool things
11:12 PM Tom_L: ever try to sweat a copper pipe with one drop of water in it??
11:12 PM rue_mohr: I wonder if I should normalize the surfaces so I can stick a pan over it if I need to?
11:13 PM Tom_L: what you said doesn't mean much to me
11:13 PM rue_mohr: there isn't a consistant surface to just plump a pan over it with an O-ring
11:13 PM rue_mohr: but if I made one, I could
11:14 PM Tom_L: o ring would get too hot
11:14 PM Tom_L: and leak i'm afraid
11:14 PM rue_mohr: well
11:14 PM rue_mohr: finns are easy
11:15 PM rue_mohr: or I just try it and see if I get by on dumb luck
11:15 PM rue_mohr: works for lots of trades guys
11:15 PM rue_mohr: :)
11:16 PM Tom_L: i'd try it
11:17 PM Tom_L: what are the bosses for?
11:21 PM rue_mohr: water ports
11:21 PM rue_mohr: in and out
11:24 PM rue_mohr: ok, well, I tuned the design a bit...
11:25 PM rue_mohr: the origional is injected-cast aluminum
11:25 PM rue_mohr: ooh
11:25 PM rue_mohr: haha
11:26 PM rue_mohr: I almost forgot
11:26 PM rue_mohr: I need to mount the engine by this thing too!
11:26 PM rue_mohr: haha
11:26 PM rue_mohr: ok
11:26 PM rue_mohr: uh, how about a standard motor flange?
11:26 PM rue_mohr: like, electric
11:26 PM rue_mohr: nema.... 80?
11:28 PM rue_mohr: I see 42...
11:28 PM rue_mohr: nema56...
11:29 PM rue_mohr: 5.875inch...
11:30 PM rue_mohr: 149mm
11:30 PM zhanx: ok rue
11:30 PM rue_mohr: the engine bolt patern is only 72mm wide...
11:30 PM rue_mohr: so, smaller than 56.
11:31 PM rue_mohr: whats got a bolt pattern ~72mm
11:31 PM * rue_mohr pulls out the baldor catalog
11:33 PM rue_mohr: bah, not nema
11:35 PM rue_mohr: heh, nema42 is 89mm
11:35 PM rue_mohr: what the next size down?
11:35 PM Tom_L: 32 36?
11:36 PM rue_mohr: 36 is 74mm
11:36 PM rue_mohr: ... ok
11:36 PM rue_mohr: mayeb I should make that work
11:36 PM rue_mohr: can I hang a whole engine on a nema36 flange?
11:37 PM Tom_L: http://www.electricmotorservice.net/nemachart.pdf
11:37 PM Tom_L: only goes to 42..
11:37 PM rue_mohr: stepper range
11:38 PM rue_mohr: damn, I didn't ref the engine shaft on the info I ahve
11:38 PM Tom_L: 34
11:38 PM rue_mohr: I found 36
11:39 PM rue_mohr: http://www.dc-electricmotor.com/photo/dc-electricmotor/editor/20160329143104_57338.png
11:39 PM Tom_L: http://www.piclist.com/techref/io/stepper/nemasizes.htm
11:40 PM rue_mohr: http://www.dc-electricmotor.com/sale-7668171-90mm-90mm-nema-36-1-8-degree-step-angle-hybrid-stepper-motor-for-atm-machine.html
11:40 PM rue_mohr: ?
11:41 PM rue_mohr: but... how the hell can I put that flange on...
11:42 PM rue_mohr: I'd have to do a neck of some kind
11:42 PM rue_mohr: the shaft comes out somwhere in that empty 'bay'
11:43 PM rue_mohr: maybe furrywolf would have the answer... maybe it should be a ...
11:43 PM Tom_L: i need a pic of the motor
11:44 PM Tom_L: and how you need it mounted
11:44 PM rue_mohr: see that pan I'm making is to replace the leg
11:44 PM Tom_L: ok
11:45 PM rue_mohr: http://ruemohr.org/~ircjunk/robots/sparrow1/p1090952.jpg
11:45 PM rue_mohr: see the blue thing?
11:45 PM rue_mohr: thats what I'm replacing
11:45 PM rue_mohr: http://ruemohr.org/~ircjunk/robots/sparrow1/p1090946.jpg
11:45 PM Tom_L: better if you had a closeup
11:45 PM rue_mohr: thats my test-fit
11:46 PM rue_mohr: see how the exhaust is just pushed down the leg?
11:46 PM Tom_L: i think
11:46 PM rue_mohr: http://ruemohr.org/~ircjunk/robots/sparrow1/p1090884.jpg
11:47 PM rue_mohr: I dont have any other images of it
11:47 PM Tom_L: so what if a flange came at a 90 to that?
11:47 PM Tom_L: to your part
11:47 PM rue_mohr: those 6 mounting bolts, the small dim is just 74mm
11:47 PM rue_mohr: the leg goes away
11:48 PM rue_mohr: I ahve to line up the flange with the motor shaft
11:48 PM rue_mohr: from the last image there, the flange would be on the 'top'
11:48 PM Tom_L: that's what they mounted to before though right?
11:48 PM rue_mohr: 72mm, the nema36 is 74mm
11:48 PM rue_mohr: the leg
11:48 PM rue_mohr: via the 6 bolts
11:49 PM Tom_L: so the 6 bolts is enough to hold it
11:49 PM rue_mohr: http://ruemohr.org/~ircjunk/robots/sparrow1/p1090946.jpg
11:49 PM rue_mohr: I'm replacing that
11:49 PM rue_mohr: the view of my part is that upside down
11:49 PM Tom_L: yeah
11:49 PM rue_mohr: http://ruemohr.org/~ircjunk/robots/sparrow1/pan2.png
11:49 PM Tom_L: so come off the right side of it at a 90 with the flange
11:50 PM rue_mohr: you can see the water jacket stuff
11:50 PM Tom_L: and put some struts on it to stiffen it
11:50 PM rue_mohr: hmm
11:50 PM rue_mohr: I'd prefer if I make it so that its palusable to replace it with a mtoro later
11:50 PM rue_mohr: via standard flange
11:51 PM rue_mohr: I'm not worried about the engine orientation, that wont matter
11:51 PM rue_mohr: thats why its a 2 stroke mixed, with water cooling
11:51 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Assembly/Z_Motormount1.jpg
11:51 PM Tom_L: only replace the slide with the bolt mount pattern
11:51 PM rue_mohr: yes, I got ya
11:52 PM rue_mohr: tho, I'd like to keep this kinda flat-packed
11:52 PM Tom_L: and cast it all as one piece
11:52 PM rue_mohr: hmm
11:52 PM Tom_L: so the 2 braces would be inside the bolt holes
11:52 PM Tom_L: on that end
11:52 PM rue_mohr: yea
11:53 PM rue_mohr: part of the goal is a flat frame that holds the two compressors and the engine
11:53 PM Tom_L: but would that be in the way of the exhaust?
11:53 PM rue_mohr: and an electric starter/generator
11:53 PM rue_mohr: no, it wouldn't be in the way of the exhaust
11:54 PM rue_mohr: hmmm, I'd like to ponder this a while
11:54 PM Tom_L: where's the drive shaft from the motor?
11:54 PM rue_mohr: I did completely forget
11:54 PM rue_mohr: http://ruemohr.org/~ircjunk/robots/sparrow1/pan2.png
11:54 PM rue_mohr: that 'bay' to the left, its in there
11:54 PM rue_mohr: somewhere
11:55 PM rue_mohr: I'll have to locate it, maybe tommorow
11:55 PM rue_mohr: its a tiny shaft
11:55 PM Tom_L: that's where the drive shaft came out right?
11:55 PM rue_mohr: like 1/2"
11:55 PM rue_mohr: yea, its a stupid little short spline
11:55 PM rue_mohr: about 1/2" dia, about 1" long
11:55 PM Tom_L: need a bearing support now?
11:56 PM rue_mohr: :) I dont want to talk about it....
11:56 PM rue_mohr: that problem comes later
11:56 PM Tom_L: or can you get to the shaft and put a needham coupler on it
11:56 PM rue_mohr: its a 2 stroke, it'll have pin bearings, right?
11:56 PM Tom_L: probably
11:56 PM Tom_L: a mess
11:56 PM rue_mohr: yea
11:56 PM rue_mohr: I know...
11:56 PM Tom_L: been thru many of em
11:57 PM rue_mohr: I just assume some kinda coupler and then have the drive pulley on a shaft with its own bearings
11:57 PM rue_mohr: I dont think I remmebered to get the rpm of the engine
11:58 PM Tom_L: you could have found an easier target
11:58 PM rue_mohr: its high
11:58 PM Tom_L: 5k?
11:58 PM rue_mohr: this is exactly what I wanted
11:58 PM Tom_L: 6k?
11:58 PM rue_mohr: well, I wasn't gonna rev it while not under load
11:58 PM rue_mohr: its fast for sure
11:59 PM Tom_L: my race engines were around 15-20k iirc
11:59 PM rue_mohr: this isn't currently a project stopper, I can use any air source for initial tests
11:59 PM rue_mohr: wow yike