But I will admit emc and the motenc card is the right direction
Still when I do this BP I will have to justify it by saying:
" I'm not working right now...this is just hobby stuff..."
Know what I mean?
hows the timing calculations?
time to go - Spotted ick for tea tonight.
* paul_c tries that again....
time to go - Spotted Dick for tea tonight.
hmmm spotted dick ...
there are strange people here
well, I got another board into my blast cabinet :)
progress was heavely delayed today for some strange reason, I lacked a lot of motovation
maybe it will be better tommrow
only thing I think im not going to like is the fact its only a triangle bottom, instead of a pyramid shape
gezr, how's that good? better?
I would say a pyramid shape would be better
I'm just about to machine some stuff... well.. I need to face it... the code is already written. :)
the media would collect in one location
so that it just collects on the bottom right?
now its going to be at the bottom but spread across 3 feet
you have a 3ft blast cabinet?!?!
I think by making it myself Im saving at least a grand, the ones made of steel are 900 or so bucks for a slightly smaller unit
its 2.5 high, 3 feet wide, 2.5 feet deep
not including the section where the dust can collect
I've seen 2ft by 2.5ft units for for $199CDN.
comes with a filter, media collector, blaster, 3 ceramic nozzles.
I paid like 70 bucks for a leaky sheet metal/ with a plastic window one that I really really hate
even $99 when on display sale.
yeah, probably that one. :)
at a harbor freight where I got the one im replacing
I wouldn't know... I never needed to bead blast anything.
im using the gloves and gun :)
gezr, yeah, same as HF stuff... that one
I need ideas for lunch tomorrow. Mongolian is out, as it's too expensive appearantly.
this one is going to be pretty nice if I can get if finished, not easy with a hand saw, single direction drill that im using as a screw driver
hmm, lunch tommrow the place I work for is providing us with a bar-b-que dinner
yeah, thinking Korean BBQ.
treat yourself to a steak of some sort even if you have to cook it under your broiler
im thinking I may do steak morrow evening, steak and taters
how is your indexer thing comming, ive seen over the past few days you mentioning some things about accuracy or position of things over a distance?
oh my gosh, I forgot to call my friend today
gezr, your DCC work? can you accept autocad 2005 files?
you could email it to email@example.com
autocad 2005 files work for you?
im sure dcc would work but it would land at an unrecroverable destination
yeah I think I can chew on them
should be there.
everything is in mm units. it's an 1.5" cube, with subcubes. :)
yeah it opened just fine :)
so you cut that shape and then measured?
that looks sweet when renendered :)
it's not measured, it's calculated. I did that first.
it was a cube with 3 cylinders subtracted out of it, and then progressively scaled down by 0.68.
the scalling was done with a macro I wrote...
thats really neat
was easier to do trial and error with scaling than with real metal... and the macro made things work in 1sec... version doing it by hand.
you I guess have autocad2005?
you would be guessing correctly.
turbocad 10.5 opened it up with no problems :)
too cool, im going to have to spend some time learning how to draft this year as well :)
well, I can help with that aspect :)
hehe, I colorized each individual copy a different color :)
I'm gonna plug my laptop into the shop room, and VNC (www.realvnc.com) to my desktop to see and chat. :)
im going to be going to bed in a moment
this week has been full of lots of hard work, at work and home
doh! 2mm off on the part... copied down the number wrong. :(
there goes $2-4 worth of aluminium. :/ heh... at least it wasn't an bunch of material wasted... checking if my code will be better now...
hello.. anybody around?
* alex_joni could need some help
I don't know how much help I'll be though.
I need you to check a ping
I can do that.
if it resolves
could just be firewalled.
so I can't ping them.
sooo many burrs on my piece... it's gonna take hours to clean them out.
http doesn't work either
last pass though... machining 6 sides of a cube takes freak'n forever
neither does DNS lookup
that shouldn't be firewalled ;)
then it probably doesn't exist.
or a route is down
still around alpha?
cleaning/polishing a part
I'll be back... I'm gonna wash my hands, and change my bandage...
should work now... could you try again?
robcon.ro or 18.104.22.168
6 sides of a cube?
anon: usually yes
and 8 corners
ah. yeah didnt think
* alex_joni had a great idea...
I need to machine a pneumatic vise.. soon..
I got a nice showoff thingie for my desk :)
in my head..
I wanna build a cutting machine
but the torch will be suspended by wired
controlled by motors
[09:10:50] <anonimasu> http://www.dakeng.com/gallery.html
kinda like the NIST robocrane
I love that cube at top :)
I've seen chinese stuff
but those were with sferes, not cubes
and the ones inside could move...
I've seen ones with 7 moving inside
not big though (around 10 cm outer diameter)
anonimasu, that's what I just made... except mine's 1.5" cube, with 5 cubes in total [4 inside 1 cube, making 5]
I'll cad one later :)
mine will be pretty large, becasue I only have 3x3cm alu stock
but still it's nice for having on the desk
I've got enough titanium to make one exactly as he has.
I hate you! :D
nah, don't be a hater... you'll get to where I am... I started off with NOTHING... but drills, radial arm saw, and and hand tools.
oh, I have a cnc mill...
but I cant get titanium.
I've actually got about 5ft worth of TI.
there's hardly anyone that uses it in this part of the country..
I have a CNC mill... except the backlash is foxered on the y axis.
anonimasu, where are you again? Sweden?
I dont know what's up with my ballscrews I have lots of bachslash now..
or well > 0.015
I've got about that for my Y.
but I dont know why.. I think my ballnuts have gotten worn..
0.002" for my X.
I hate you! :D
expensive skf ballscrews..
.0006" that's NOTHING.
the other axis has about 0.023
I will remove all of my backlash, after I fix the Yaxis a bit... and spend another $40CDN.
and the Z is spring loaded so it dosent have a problem with backslash
I'm preloading the axes soon... with a die spring, or a disc spring [I don
't know which yet]
<ball nut> <spring> <ball nut>
I need alu to make my ballscrews mounted as they should be
and that will get rid of all my backlash I think/hope. Just need to calculate how much preload I need first.
I should really be changing this bandage more than once a day. :/
actually I just measured a American dime... and compared it to the little cube. :) it's less than 0.7" So that means if I had 0.75" Ti stock I could make that easily. but I only got 1", 1.5" ti stock. hmm.
anonimasu, can you open autocad 2005 files?
I am unsure..
care to accept a dcc file?
I think solidworks will open it..
drew that earlier today.
I cant access the ftp at home now
I'll check it later :)
no hurry... it's just the cube cad drawing of the cube I made.
I wonder if I know anyone with a media blaster... to just uniform the finish of this little guy.
or maybe I'll just make a tumbler, and throw some sand and it into it.
anodize it ;)
anadizing Ti is much easier than anodizing aluminium.
Ti is just a current in an eletrolytic solution.
Al, requires you to acid dip, dye, coat, lots of stepps... I researched it, and gave up on that idea... cause well... it's just tooo much work.
it's easier to send your parts in
I have a place that does a real black hard finish for alumium... they do stuff under the table.
it's about 5$ per part.. over here
$50, for two shopping bag full or something.
yeah, hard anodizing... not decorative.
I like that..
though black anodizing looks sick to me.
:) I love it.
it's hard as hell :)
* anonimasu is a freak for function
I've got some pipes hard anodized... they're alumium 3/8" pipes... about a ft long each... The previous owner used to make camera parts/assessories for Panavision... but he was left with lots of stock still kicking around.
so like 10% of it anodized... and I've got like no clue what to do with it.
they're threaded too... internal thread... but it's just odd as I've got no practical use for them.
hmm... it's almost 5am... do I sleep, or do I just go make a coffee and then have lunch with the girl.
i.e. stay up...
or just cancel on her.
hm, have a nice cup of coffe..
slack for a bit and then go out with the girl ;)
damn cute only took like 40 minutes to make. BUT took me over and hour extra to deburr and polish.
heh, panavision.. crap cameras*grins*
They don't make the cameras... they buy them, modify them, rent them out to film crews.
same with lots of the other stuff... lights, dollys, grips, stabilizer systems, generators
the generators are super super quiet... on a flat bed truck, to power the lights and cameras on remote locations.
it's actually really damn quiet... It's like something you could have in the backyard, and you couldn't hear in the house.
I am looking for a paper on the diff between 6060 and 6061
[09:52:44] <A-L-P-H-A> https://bomdetail.services.ibm.com/matcodes/matcodes.nsf/pages/mat01.htm
I can't find 6060
nm 6060 is a european alloy.
6061 is north american
let me double check..
[09:55:05] <A-L-P-H-A> http://aaec.avidsoft.com.hk/bin/search.exe/PropertiesResults.htm
that will tell you the composition of many alloys
cant access it..
hm, I am most interested in how it'll machine
got a copy of machinaries handbook?
yeah but not here..
[09:56:49] <anonimasu> http://www.worcester-aluminium.com/html/char.htm
6060 Special purpose structural alloy. Good surface finish and corrosion resistance. Good formability in T4 temper. Good weldability. Responds well to surface finishing, especially anodising.
man.. this is crazy ;)
I just downloaded some ancient Java GUI from NIST
and it still works ;)
connected to a doze-emcserver
I need to go eat
I need to go sleep.
that's a windows version of emcsvr
I am gone...
* alex_joni had a revelation last night ;)
I wanna build an cutting-machine
hi...was taking a shower
also getting ready for big ice storm
expect no power for days
no generator around?
I am thinking of running out and getting one
well out to the shop...employees coming in
last work day for a while i'll bet
I wanna build a robocrane.. ;)
anyways... going to the mountains this weekend
* paul_c spies rayh lurking...
how's the snow up there ?
Got some. Cold today. -10f
If you want me to look over the docs before they go to press, send em.
I was just going to update the install section and advise a couple of small changes elsewhere
You don't need me for that.
'spose I should also do a paragraph on apt
a pointer to docs at Debian.org should suffice
question about versions - BDI 4.x, Debain Sarge (3.1), Kernel 2.6.10 - are these what you plan, or do I have versions mixed
Debian Sarge, (currently) 2.6.9 kernel, and rtai-3.10
is the "soft" realtime supported in 2.6.9 ?
2.6.9 has low latency options, whether that is sufficient for soft realtime, I wouldn't like to say for sure.
from what I've seen of test results, 2.6 "soft" realtime latency is no better than a 2.4 kernel when under load.
is the low latency option what people keep calling "realtime" support in the kernel?
Some call it that.
but realtime means different things to different people.
for me realtime is "hard" realtime, but I still wanted to understand what it was that people keep claiming that the 2.6 kernel supplies natively
wish I had a good laptop
expect several days of power outage due to ice storm
les: I'll take one also.
ice just wipes things out down south here
we might get all snow here in the mountains
So I would marely be snowed in but perhaps with power
7%+ grades common on the roads
Driven on a few of those over the years.
quick, buy a Hummer
With studded tires.
Cause 4wd only helps with acceleration.
and the optional 115 VAC inverter outlet
I was considering hitting the walmart and grabbing a generator
prob sold out
hmmm car batteries in the UPS?
wonder how long that would last
100 ampere hours...12v
keep in mind that most UPS units will not start without power on the input to sync with
5 hrs per charge?
so after the first battery that would be it?
unless you could have two and chain them on startup
the inverters made for RV's and boats do not have this issue
was thinking hot swap...but that wouldn't work too well
wonder what a 250w rv inverter costs
yikes too expensive
luxury market item
[16:09:18] <les> http://www.srh.noaa.gov/data/forecasts/GAZ010.php
used to live in NC, remember southern ice storms well.....
oh on another note I see the machinery rebuilder I was talking to here made a post to the list
He took the plunge and bought a motenc card
wants to use emc for commercial retrofit
Since I am planning that too for an extra mill we might work together
As far as I know the motenc has yet to be installed on a real machine
I sure don't want to buy any more stg cards
shame they never did a PCI version
yeah I don't know what happened
Well...off to town to get supplies
* robin_sz waves ...
anyone understand this tcp/ip networking stuff?
so ... I have a bit of a confusion
I have a network, several boxes on the 192.168.1.x subnet
and a laptop connected by wireless, and a card in one of the boxes on the 192.168.1.x subnet
everything works just fine .. except ....
the bridge box to the ouside world
from the 192.168.1.x boxes I can see it fine
but its invisible from the 192.168.2.10 laptop ...
where are the wireless cards?
on the 192.168.1.1 box, and the laptop is on 192.168.2.10
so what's the IP of the wireless interface on the box?
if I ping the 192.168.1.30 box from 192.168.2.10 and run tcpdump ..
the if on the box is 192.168.2.1
18:12:48.022427 IP gandalf.redpoint.org.uk > 192.168.1.30: icmp 64: echo request seq 0
18:12:48.022652 arp who-has gandalf.redpoint.org.uk tell 192.168.1.30
so what's invisible from the laptop?
the bridge box
does the bridge box have a route 192.168.2.x -> 192.168.1.1?
if not, the packets can't get back to the wireless subnet
it says to itself "where is 192.168.2.10?" and answers "dunno, so I'll use my default route"
isnt that what the arp who-has is supposed to figure out?
the routing table on .30 is:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.0 * 255.255.0.0 U 0 0 0 br1
default 192.168.1.138 0.0.0.0 UG 0 0 0 br1
the router thing under the stairs, thats plugged into eth1, the network into eth0 and then its configured as an arp-transparent bridge
ive assigned the .30 address to tht bridge
hmm, I wonder if the box with the wireless card in it is seeing that arp who-has
yeah, seems so, but its not replying
* robin_sz doesnt really understand the arp stuff
I don't either
might be a firewally thing
i know I added tules to do stuff to icmp packets, never really thought about arp stuff, basically because i dont know what it does :)
but on .30 if you `route add -net 192.168.2.0/24 gw 192.168.1.1' I bet it will all work
it did too!
told ya so
now let's both go on not understanding arp
* robin_sz hands cradek a beer
the weird thing is ... say, 192.168.1.25, that doesnt have that route added, but thats works fine
as do allthe other boxes on 192.168.1.x
whatever, I'll add that to the briding script and stop worrying
you're welcome, but I don't understand why the others work either.
shrug, they are all on the same net, with real ips assigned to real interfaces
.30 is different in that the ip is assigned to a bridge
but apart from that ?
* cradek shrugs
lunchtime for me
I'll want that beer about 6pm
I'll send it ups.
bridges are weird ... they dont show up in traceroutes ...
yet you can fiddle with packets as they pass through ..
right ... that sorted out, I now get to try and implement stp :)
* robin_sz truly fears stp, for he understands that even less than arp!
I have a bracket that is slipping... as it's only held down by one bolt? Any ideas as to how I should mount the bracket down? I've got two ideas, one hard to implement, and another easy. Easy first. 1" piece of 1.5" x 1.5" x 3/8" Angle Iron [if it exists], with slots milled out for bolts. bolt down the bracket.
theres another way ...
2.) drill a hole in both the bracket and my table with a dowel
do you have a welder?
it's aluminium + cast iron.
it's aluminium [bracket] + cast iron [base]
t slotted base?
T slotted base?
dove tailed base.
you have dove-tail grooves in the table on which this mount sits?
[18:08:49] <A-L-P-H-A> http://lloydleung.com/gallery/Mill_Related/2003-08-16_Mill_Converstion/
<-- milling base. The bracket mounts to the part on top.
that's a view from the front. The bracket is for the Y-axis of the table.
whatever, 1 bolt isnt going to do it
4 bolts in sslots maybe
so how do you recommend doing this?
i cant see the base from here, or the brackt
os this the motor mount bracket?
leadscrew mount bracket?
* robin_sz ponders a motenc-100 card.
seems a LOT of io, but the price isnt that bad
will be playing with one very soon
yes 100 dio
is this the 'new' vital card?
or is there another top-secret one in production as well?
8 axes and all that io, it more than I need
it is fairly awesome though
robin_sz, sorry was in the shower. It's the ballscrew bracket.
where the ball nut mounts too.
[18:50:56] <A-L-P-H-A> http://lloydleung.com/gallery/Mill_Related/2003-08-16_Mill_Converstion/DCP_0088.JPG
the metal peice in the top middle is the bracket.
* robin_sz looks
robin: yes the Vital motenc-100
yes this is the new one?
or yes there is another on the way?
yes this is the new one
no other on the way that I know of
more than enough for a 2 axis plasma
It has not been tested on a real machine yet to my knowledge
I'll leave that honour to someone else
looking at alpha's bracket picture...
segmot is waiting for me to get free time!
well I use it on my stepper machine - not sure if that counts as real or not
Will get some very soon due to ice storm
* robin_sz ponders how you use a servo card on a stepper machine
I was cutting nice blended arcs and lines a couple days ago
robin_sz: it's steppersegmod or something like that
oh you use segmot, not the vital card??
no, it's stepper
I use steppersegmod, parallel port, chopper drives, steppers
alpha: not sure what I am seeing. let me read back a ways
we were talking about who would have the honour if using the motenc-100 card on a real machine
and then asked about segmot
oh, I totally misunderstood then
but you have segmot working fine with steppers?
I thought you were talking about testing segmentqueue on a real machine
thats .. encouraging
yes, I only use the new planner now
I might give that a go
have been ever since I checked in the last fixes a month (?) ago
the only strange thing I've seen is it sometimes doesn't blend the first move in the program because the queue hasn't filled enough yet
I would like to see that fixed but I haven't dug into it at all.
I sort of abandoned my emc afforts ages ago, but im tinking of having another play, having frightened myself with real systems again
otherwise, it works great
* robin_sz nods
this weekend I'm going to try cranking my spindle to about 20krpm
for cutting pcbs faster
oh, tiny spindle
yep, tiny tools
seen those aor spindles?
the spindle handles 5/16" tools or so
heard of it, never seen one
for engraving mainly
my machine can only move 25ipm so 20krpm will let me cut at full speed.
I have the new motor mount in place already, I'm going to try to turn some new pullies from Al round bar
I'm worried about getting them perfectly balanced
2.5" dia at 20krpm makes the balance pretty critical
actually I guess the big one on the motor won't be turning that fast
I swing 1.5" at 21000
I'm worried that I have to reverse the pully in the lathe chuck to finish it, losing the center
alpha: all I can say is that I through bolt and dowel ballscrew bearings
I guess I'll do the best I can and see how badly it shakes
machine the pulley on a mandrel
the hole in the center will be very small
cradek: Machine the bore and then use a spigot to hold it when you have to machine the reverse side.
[19:09:27] <A-L-P-H-A> http://lloydleung.com/gallery/Mill_Related/Mill%20Brackets/bracket%20profile.png
les, so just use the mill, to drill it's own dowel hole, and press a pin through, into the bracket?
not even sure if I can get a boring tool in there
yeah, if I have the right size
Alpha: yes pretty much
drill undersize and ream after it's mounted
1/4" think would do
cradeck: I bore 1/8 a good bit
up to about 0.5" deep
les: do you grind that tool yourself?
alpha: yes that is exactly what I use
les: I'll keep that in mind
it's a pain but works
les, you don't think something like JB weld would do the trick?
les: I'm so spoiled by my carbide insert tools I hate to touch the grinder
if you bore a tiny bit under and ream it usually comes out centered to .0005 or so
I wonder if this is the kind of thing I should pay someone to make
it will really be a struggle on my small lathe
because it is hard to hold diameter with small hole boring
well small part...small lathe...no problem
2.5" is not a small part for this machine!
no way will it swing over the slide
so I'll have to stick the tool off the end of the table to do the outside
I could make you one
les: I really appreciate that - but let me see if I can do it first.
cradek, what are you trying to make?
A-L-P-H-A: just a set of pullies for my spindle
oh, what's the dia?
about 2.5" and 1.25"
biggest OD, and the bore?
they will have steps
2.5" - 1/4" and something like 1.5" - 3/4"
going from memory here
the bore is 3/4"
on the spindle yes, but on the motor it's smaller
I think 1/4
ahh. so two motors... two pulleys. Where abouts are you?
no, one on the motor, one on the spindle
I'm in NE USA
err. one motor, one spindle. :)
I'm in Toronto Canada.
[19:19:37] <cradek> http://maxnc.com/page3.html
see this setup? my motor, motor mount, etc are different
but the positioning is the same
ahh yeah, I see it.
I need to put a big pulley on the motor and a small one on the spindle
get higher speeds I see.
yeah I replaced the spindle motor with a DC speed-controlled one that has a max RPM of ~ 6000
but it's powerful, so I can gear it way up
their original motor, motor mount, speed control, etc are crap, so I've replaced it all, and also the stepper drivers
what are the spindle bearings?
they ran them at ~ 10k with the factory motor
do you think they're ok? I don't know anything about bearings but I was worried about that too.
most bearings under about 15 mm grease lubed are ok for 20k
I know they're sealed but I don't know what the lube is
Of course bearing speed ratings can be violated with light loads
oh this will be extremely light
router bearings have a speed rating of about 12k
cutting 5mil deep and 10mil across, or drilling very small holes
and run at 20+
but like about 500 hrs max
well my plan was 1) "see if it explodes" 2) "see if it gets hot"
I know what would be great for pwb milling...
I should go to my suppliers and pick up the part I order, that is the wrong size. (6-40 set screws, instead of 6-32. :( )
some machines use a dremel
I know someting even better
its called an "etching tank"
robin_sz: this is cheap, works great, and uses no chemicals
les, so, the procress: drill with a Letter C or D drill bit, chase with a 1/4" reamer [use cutting oil]. drop / press a dowel inside?
C = .2420" D = .2460"
would have to hunt up c and d...but around .05 mm or so under
cradek: I hacve etch here, two containers, and a pile of 'laser star' paper ...
d looks good
cradek: so long as you are having fun though
closest is D, which is 0.1mm smaller.
robin_sz: can you do 8 mil traces with 8 mil separation with that laser stuff?
reamers usually cut a little over if they are asked to do much more than a few thousandths
robin_sz: two traces between DIP pads?
cradek: whats a mil?
robin_sz: thousandth of an inch
8mil = 0.2mm
5 thou is best ive seen from ot as I rememebr
8 though would be ok
this is the stuff you iron to the board?
that's why I was so surprised
what is "laser star" then?
I get 10mil from lazer printer + photo paper + iron + etch.
print onto laser star,
put laser star over UV sensitive board,
20 ins in the light box
dunk in hcl
A-L-P-H-A: I've tried that but I hate all the finicky work.
dunk in fecl3
I just have two plastic tubs
robin_sz: is that the nasty brown stuff?
cradek, what finicky work? I iron it own, peel [dry]... comes of easily. You have to get certain type of paper photo papter.
robin_sz: how do you align the sides for exposure?
from print to etched board is 10 minutes. + drilling time, and + design time.
A-L-P-H-A: you drill manually?
A-L-P-H-A: I go blind at about hole 20
yeah. not with my stupid mill right now. There's sooo much backlash right now.
A-L-P-H-A: I've done it that way, but I'll never go back as long as I live.
A-L-P-H-A: you should try milling if you get your mill working decent
cradek: easy ... print the two side
I'd use the drill excellon (??) code, if I trusted my mill.
the mill hasn't been turned on since early summer I think.
sellotape them to a 1" wide strip of scrpa board
on to each side, aligning them perfectly
place the baord inbetween
robin_sz: ah, I didn't use scrap board and it was always a little off
yeah, the scrap board really helps
I fancy a little CNC pcb drill rig
my procedure is: stick board to table, start emc, change tools when it prompts me, done. (it cuts it out and everything)
wth. someone tells me to make a phone call, and then proceeds to use the phone. stupid.
have you tried using a 'floating nose' engraver?
no - this works just great as-is
the board is surprisingly flat when stuck to the table with tape
there's a scrap board under it so I can drill through
I use the tape that's meant for taping down tiles to the floor
it has fabric/string (?) in it
the current batch of board im playing with are 440mm x 200mm
oh this is going to be fun... if the backlash it down to around 0.005" I'll be happy... atleast the software can compensate for that.
I cant imagine how long that would take
robin_sz: no kidding
robin_sz: my working area is ~ 4x6"
actually, it does exceed my process too
I have to etch in 'two halves' :)
robin_sz: this isn't for any kind of "batches" - it's just for my little projects.
my etch is just for ones offs
robin_sz: 4x6" (eurocard) size FR4 boards are dirt cheap
or 'lets make 4 like this and see if they blow up'
yeah I guess I've made several of some things, but it's just for me
my complicated stepper driver boards come to mind
we have to do 'solder vias' whic is a pain
when we eventually get it right, we'll get em made properly
ie not in europe :(
I use 24ga wire and a #75 drill
it's friction fit so you can cut short lengths and they stay in the board
wanna hear my (brief) encounter with a local PCB manufacturer
sometimes I thread the wire in and out of all the vias like I'm sewing with the wire, then solder them all and cut off all the scrap
it's easy then because the wire can't fall out
we normally get pcbs doen far east, but for some reason decided to try a local PCB guy ... gave him the gerber files and off he went
there are 32 boards on a 'big board'
and, we offered to nest the gerbers, but no . he cwould do that
so they turn up. late.
and .. each mini board is .010 too big
I just tooled up the production board for the encoder I designed
robin_sz, les, if I don't do the dowel? couldn't I just drill and tap a second hole?
the protos were milled
so .. board 8 on a strip of 8 is .080 too far to the left
does it fit the solder mask, NO.
and this idiot stands there and srgues why it not wrong really
haha solder mask being off 80 mils seems a little wrong to me
how our gerber must be wrong (we pulled it up on the screen and put cursors on it etc)
alpha: you can do that...the dowel just allows precise reassembly and stability
if the forces are small just bolt it on
well, we already had the solder mask, all they had to do was place a grid of 4 x 8 of our gerbers on a baord
anyway, rather than correct the problem and apologise, he argued black was white
oh, he didn't apply the mask for you, I see
nope. all he had to do was make the board to the spec we gave,
anyway, as we slung him out, we showed him the pile of 25,000 we use every month
then he started to grovel :)
sorry bud, too late
we did try another UK board house, but that was even funnier, so we stayed with the far east
(the rep failed to show up, but his mum phoned in to say he was ill)
heh...I kind of had enough of pcbs after working at a company that makes them
his mum! .. she could at least have pretended to be his secretary!
not a good sign
far-east have always made em nice. no worries.
that's worse than "he's off at class"
only snag is (as with everyting over there) cash up front
and 2 months lead time
so you basically need 2 months worth of prodcution money just to get the stuff in
another month passes whilst it gets built into product
another before the customer pays
* robin_sz stops complainng
I chose this company to manufacture my encoder tronics:
[19:57:18] <les> http://www.bit7.com/#
I designed the pcb on protel though.
They were fairly copetitive with far east firms
You ought to see how fast their pick and place machines are
But to be honest...my tronics are just tied together ap notes haha
yep, probably so
I would have never picked them because their web site sucks.
yes it does
"wave your mouse over all this crap and see if some content appears"
but I had them do the BMW no moving parts fuel sensor and they did a great job...in spite of their web site design
you mean fuel level?
how do you do that without a float?
a special lossy lightpipe that hangs down in the tank
huh, I thought this technology was pretty much settled
what's the advantage?
no float...no cermet or wire sender ...MUCH lower price
is it separate from the fuel pump?
no it is on the pump assembly
a little very funny shaped stick of ULTEM
That did the best in "bad" gas
in many parts of the world fuel quality is very poor
full of mud
full of aromatics
Ultimately some production may end up in the far east
But early on at least we keep it close
not really my decision
But I would rather go to Chicago than China
Anyway all those had prototype boards that were milled
No good reason
We had a little desktop unit that was bought for something else
It cost 10k
12x12 inch capability
ran most with .01 mill
had a little air spindle
50krpm or something like that
no plated through holes though
but that was ok...we try to avoid them on surface mount anyway
there are INPUT_SCALE and OUTPUT_SCALE in emc.ini. are these used only with servo motor?
with all I think
I do not use the stepper version so not really sure
in stepper, they have to be identical, or Bad Things(tm) happen
some people might say 'why not have it only pay attention to one of them in stepper then?' .. but they are jsut weird
anyone got any experience of 3d stuff
as in point cloud stuff
I have done a little
how do you create an surface from them?
remember...I put sculpture in inky water and took a picture
rhino can do that I think
possibly even fit a NURBS surface to them
hmm, that would be kewl
I have some sample point cloud stuff
I just don't do that much...3 axis 3-d is soooo slow
and a rho
and a rhino demp
grab evaluation rhino and go to it
hehe as bad as me
another micro stroke
well I cannot paint today...too cold.
Better clean up the house a little...will prob have some guests soon
Neighbors with electric heat pumps
power will prob be off soon and for days
very bad ice storm brewing
no generator either
thats possibly a mistake ;0)
you have generator?
My dad has an extra to give me but it's down in FL
So i did not buy one
what work can I get done with an alladin lamp in the shop?
les: That storm got you pretty good, eh.
They bought a bigger one down there due to power outages lasting as long as a month
ray: hits tonight
last one had no power for 5 days
Better you than me. Got those quite often in Oregon while there.
Almost never got them in Chicago
this is awesome... I ordered the wrong part from my supplier. I ordered #6-40 set screws by accident. But when I went to pick them up, they gave me #6-32. :) sweet.
k, went out and bought a C and D drill... about to have some fun to drill the bracket into place.
Funny thing I have always noticed about 6-32....
taps break unusually easily
cause they're really thin.
I was hand tapping the stainless steel motor coupling I made.
4-40 does not break for me
i felt the tap twist, so I backed off.
I've only had 4-40, and 5-40 taps break on me.
or even 0-80
that is the smallest tap I have
I've never tapped something that small. never needed to.
I used 0-80 socket head cap screws on a project
what was the project? a model of some sort?
That encoder I talked about earlier
oh, I wasn't here... I guess I'll readup
just for the prototypes
I bought a bag of 100 hex keys for them
looked like little wire L
I think about .030 flat to flat
what kinda encoders?
tap drill is...um er #56 I think
I use #60 to drill my boards.
I'm not fimiliar with that... like the type on my digital calipre?
brb... my coffee is done.
how do those work anyways?
I've never taken one apart... so I don't know how it works. :)
not much... building the nerve to drill, ream my milling table, to put a dowel into it, to lock the bracket in place.
[21:11:47] <A-L-P-H-A> http://lloydleung.com/gallery/Mill_Related/Mill%20Brackets/bracket%20profile.png
I'm gonna do it somewhere along the rounded segment, and the sholdar... as far out as I can...
you are going to use a taper pin right?
yeah, one end has a slight taper to get it into the hole.
the other is flat.
I mean the whole pin is tapered :)
I got the straight dowels.
1/4" in various lengths. 1" 1.5" 2"
just as effective, but with a tapered hole, if you get a miss alignment over time, you just re-position and re-ream the hole and insert pin
went and bought a C and D letter drills, (.2520 and .2460" respectively).
I'm not worried about the bracket. I'm worried about my mill MUCH more.
what happed to your mill?
umm... well... I cracked the base [non structural part] bye ramming nylon lock nut onto the ballscrew, the base cracked from the impact wrench I was using... I couldn't get the nut on otherwise.
but right now.
what's wrong is the mill's backlash is caused by the twisting of the bracket from the bolt/mount area. As it's only held in place with 1 bolt.
so I need to prevent the bracket from moving. I can feel it move...
im going to have to use the cad to redesign my blast cabinet, I have come to the conclusion that I need a pyrimid bottom
I could use a blast cabinet too...but just about out of floor space
I guess I could take a quick photo of it, you guys want to see it in its rough draft?
Anyone using or know of someone using solid edge with emc?
les : give me a few moments then okay?
ray:no...use artcam, millwrite, and Mastercam
They all have postprocessors that work fine with emc
use millwrite mostly
I have heard of solid edge but never saw it
oh...that's a cad program
If I remember edgecam is the cam part of it.
looks real high end
gezr, post them up. :)
ray: fancy site for solidedge...all those straeming video demonstrations
holy crap... half a tangerine... and 21 seeds...
this tangerine sucks.
Un huh streaming at 1.2k
anyone working on some neat projects that want to share photos of?
or even past projects?
damn this tangerine.. finally finsihed it... 31 seeds that I counted... + any that I may have swallowed unknowingly.
www.masternode.net/gallery they are in the machining pages
I dont have a high pressure system, wood is fine
wouldn't it have been cheaper to make it out of metal?
I dont own a break
I bought a manual break for like I think $40CDN.
works well enough for me.
oh I bet it does
that thing will work perfectly for me :)
gezr, not like it'd be hard to make one... just two pieces of angel iron, with hinge plates mounted on both ends... welded together.
I am going to make the pyramidal bottom though, im going to draft that up now
looks good... just surprised that you made it out of wood. :)
oh I dont have a welder either
oh. then never mind.
all those parts for the most part were cut at the home depot(they should pay me, but as it is, thats free advertising)
it all fit in my trunk, I had to fold down a back seat so that the long 2x4 could fit
they wont cut angles, so Ill have to buy a jig saw now, and maybe a circular but a jig saw is perfect for home use, and a bit safer
paul_c: Got a modified compile_bditng script that runs config and make.
you see what Im talking about at the bottom whre the V is, that wont work unless I put 50lbs of bead down there
* robin_sz hits the sherry
rayh: Great - Going to commit it to SF ?
Sure. What should I call it?
gezr, why not just put two channels down on the side, to create your upside down pyramid?
call it "brian"
callit "Blue" blue is always a nice color.
That's a nice name!
I like gizmodo. :)
although, thats a bit too common
Is that a libretto? If so what tune do you do it to?
A-L-P-H-A : I may be able to keep some of the existing shape, I dont know yet
call it "Microsoft_outlook" and scare people away.
the original was "Tarquin Fintimlinbinwhinbimlim Bus Stop F'tang F'tang Ole Biscuit-Barrel", but I digress
gezr, what happens when you say, angle/tile the base? wouldn't all the media shift to one side?
How about compile_tillie?
in the northern hemisphere it would shift to the right,
tillie... sounds like a garden tool.
Is that the senior diaper?
* robin_sz tries to remeber what diaper translates to
I like "gizmodo" :)
"gizmodo huggies" hehe.
Okay. If I name it gizmodo Matt's gonna jump all over me again.
sounds like a stuffed animal name a geek chick would give to one of her toys.
There's a variable in tkemc named whizbang.
btw, what are we naming?
we I mean, rayh.
a script that compiles emc1 using configure.
isn't it ./configure and then make?
(I haven't triedused configure in emc1 yet)
Yep. With four makes in two directories.
spose I could wrap it up in tcl/tk and make it look like an installer for that other os.
why not just use BASH source install_script
There are several install scripts in the nearly dead emc/scripts/generic directory already.
I think you should remove dead scripts
Has anyone run the config stuff for emc1 with 2.20
Yes I will get a mop and pail and ask sf to clean out the junk in there.
the autoconfig stuff hasn't been tested with 2.20
Okay. When I get a chance I'll try it here.
* rayh gotta run.
oh man... that stupid cube I made last night... it's sooo well balanced... I can flick it, and it just keeps spining between my finger and the desk.
mmm, rhino is kewl, but surfacing a point cloud doesnt seem to be in there
except with a 250 dollar plugin
wonder of there are other ways to bind a surface to a point cloud ...
more ... err ...
robin_sz: You could always get a favor from a college student
asdfqwega: your kidding, fun though that may be, my wife would kill me.
Okay, who has a dirty mind?
* robin_sz raises his hand
Scratch that question!
My brother Tim is studying animation, and he's got access to (expensive) software
robin_sz: CoP to STL is trivial
paul_c: it is?
vtk ... hmmm
Vertices To ?
it has a CoP import from what I remember.
vtk - Visualisation Tool Kit
I know, I have it already
CoP would be somewhat easy to write a script for, but I don't know any file formats for export
i just didnt realise it would surface a CoP ...
the trouble with VTK is its just a set of libraries and a few demos. it needs someone ot build a killer app with it.
How does VTK compare with OpenCascade?
The only thing I've ever managed to get working with OC is the GraphiteOne CAD binary
vtk is a totally different library
Apples <> oranges, I get it
* robin_sz installs VTK on one of his debian boxes
Hehe...From the FAQ - "How do I learn VTK?"
Buy Bill a beer and get him talking about VTK
doesnt mention point cloud at all in the faq
* asdfqwega needs to install Debian on his upper-end machine
* asdfqwega lights a bonfire to stay warm
hmmm ... ive been irc'ing for too long
I just said, as a sort of half audible commentary
"slash me blows his nose" as I blew my nose ... my wife thinks I might be mad.
robin_sz: I don't think anyone has any doubt on that by now ;)
* robin_sz bleats like a sheep
* asdfqwega bleats a drum
time flies like an arrow
fruit flies like a banana
* asdfqwega holds nose
Got it figured out now... I'm gonna loose 1/2" to 1" of Y axis travel... :( it'll be sturdy. Going to put a 3/8 or 1/2" plate which be bolted to the backside of the y-axis crossslide, and bolt on a floating flange (flange + ball nut). I don't have enough space to drill and put a dowel in place.
actually, screw the floating flange... I'll just put the ballnut to that bracket.
* paul_c builds BDI-4.12
paul_c, where's BDI-4.12 gonna be located? Sherline? Ever thought about putting up a bittorrent for the BDIs?
A-L-P-H-A: no, you're going to *lose* 1/2" to 1" ...
Gonna try and get the ISO on a number of servers, and maybe persuade Sherline to host it as well.
How big will this iso be? I maybe able to host it for a short while on one of my servers.
or why not sourceforge?
SF doesn't like ISOs on their servers.
[23:57:07] <A-L-P-H-A> http://www.phpwebhosting.com/
[23:58:36] <websys> http://powweb.com
is this a debian based BDI?
or still dedrat?
so, why not just put the .debs up on a source?
wow. that's CHEAP! $7.77