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woo this is fun to listen to http://www.bidspotter.com/forms/event.php?event=2805
oh, neat. that happens to be close to me...
les_w: something is close to you?
mindless spending of money is dear to his heart
how do I hear the bids?
click on "listen live" button
50 bucks for a cheap chinese drill press
i don't see any listen live button...have to sign up to get it?
it's Bid Now / Vierw Live
then you click on the "I'm not registered, lemme look anyway" button
i'm actually bidding on this auction.. http://www.bidspotter.com/forms/event.php?event=2822
gonna get some gene splicing equipment?
gonna make me some pig-dogs
d00d - a black panasonic tape recorder
that's vintage.. want it?
I winder what the shipping is for the granite conference table and 10 leather rolling chairs?
i hope to be getting a bunch of the lab chairs
yeah - some of the office setups look nice (the desk/chair ... sets)
I wish I had known about this sooner...a little late to sign up
hmmm - a mini centrifuge and/or a nic ebalance-type scale would be cool
or a microscope, for that matter
I have a couple
those microscopes are pretty wild
ship one to 05452 then ;)
mill coming up
damn this stuff is only 100 miles from me
les - a new business opportunity for you:
[16:14:17] <SWPadnos> http://www.bidspotter.com/forms/photo.php?photo=2716784&date=Feb-09&time=10:00
oh man i dont think i'm gonna win anything.. people are bidding on the stupidest things
(never thought you could make money from that :) )
chickens will swallow sawdust and die if it's too fine
chicken = bird brain
ah mill for 875
that stuff's more like mulch
les_w: is that a good deal? kinda hard to tell without poking at it
it's just funny to see computers, generators, lab equipment, and wood shavings ...
hey, can you gouy take a look at these, and tell me what size motor you think they're for?
[16:17:01] <SWPadnos> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7588770751
the motor mounting holes just don't look quite far enough apart to be NEMA42
yeah probably nema30 or whatever 3" is
they look nice, other than that
ok each nub on the belt is probably 0.2"
er, drat not 0.2"
could be, either 1/5" (XL), or 3/8" (L)
hmmm - actually, the bearings are 7204, so they're 1.85" or so OD
47 mm, I think
ack $750 for those
yeah - it's a great deal if they fit ;)
are you serious?!
maybe i'll get into the motor bracket business
they're amazingly expensive for BP sized mills
you'd think people that make stuff all day would know how to make their own brackets.. sheesh
Anilam sells their mounts (only) for $1900 for X+Y, and $1600 for Z
well - chicken and egg problem
birdbrain problem.. don't know how to crank the handles
plus, look at the amount of metal missing - I'd have to buy a block of Al that's 8x4x14, then mill away more than half of it
that's a lot of CNC time, and a big hunk of metal
you're not making a space shuttle you know
(the metal alone would be in the $125 range)
I know that
i would make it out of 1/2" plate and weld the guards on it
the bearing position needs to be very precise
if you mount the motor extending out from the table (for the X axis), then you need two mounting surfaces that are at least 1.5" apart, because the motor shaft is pointing in the opposite direction from the ballscrew shaft
so you have two plates, plus "risers"
plus the beraing mount
I've started a design that just attaches to the existing bearing mount, but even that's a pain, and starts out with a large block of metal
the motor crashes into the table if it's pointing left?
er, with the motor to the left of the belt/pulley when in front of the machine
most mounts (this one included) point the motor body away from the spindle (shaft toward the spindle)
I'm trying to design one that has the motor parallel to the table, and in front of it
it's not that easy, because it blocks the front slot, and there's not a lot of room between the table and the Y handle (if you leave it on)
les_w: there goes a VF-9 for the low low pricee of $70k
anyone ever made thier own spindle?
yeah.. i hear semi trailer taper roller bearings work pretty well for the price
i just used bronze bushings though.. go figure
I'm planning on doing small stuff, so I'll need a pretty fast spindle
also, those Centent stepper drivers are still at $50, if anyone needs some
angular contact ball bearings are prolly your best bet
just dont out-bid me.
the guy has 18 of them, I'm the only bidder so far.
well they ain't goin anywhere quick
yeah, I'm kind of suprised.
I got my gingery mill book, it looks pretty decent
i wanna tenCent stepper driver..
if he re-lists the rest cheaper I may get an extra set.
any opinions on a fixed spindle ofer an X-Y table versus a moving spindler over a 'X' sliding table?
I'm thinking the fixed-position(except Z) spindle will be more rigid.
i like the van norman design
* bill2or3 googles
x/y table, knee, quill, sliding ram in Y
and the head swivels 90 degrees to be vertical or horizontal
so you can slide the ram all the way back and the knee up for extreme rigidity
sigh.. there goes my centrifuge for $3000
it's not even worth $500
what do you need a centrifuge for?
sounds like most of the crap I buy.
robin_sz: are you around?
alex_joni: no not at the moment
fenn halve a look for "butler elgamill" on the 'net .. sounds similar to your design
oh hi robin
wow that's big
actually got some prussian blue on my hands today
5 meter table..
had to make a jacobs taper adapter
got it close by tapping the compound angle....then prussian blue and die stones for an exact fit
fenn; they come in various sizes, but the ram for the head, that swivels on a 45 degree facet is interesting ...
jmk had a page about the van norman 12 but it's down now..
how did it come out les?
not seen yo about much .. buyt then I am rarely on
too much work these days :
the taper adapter? blue spots on the whole surface...
Well I have had a break while my piezo stuff is made over on your side of the pond
still looking good to go is it?
But I have been upgrading the shop wiring and some other stuff
yeah...way good to go
Ive been so busy, ive been running two shifts
if it works...I get to manufacture it
thats the good bit
you have a problem though ....
you'll need those wotsits ..
you know ..
mmm ... STAFF
it will have to be in atlanta or greenville sc
back to long commutes
actually I would rent a place there
you aint going to find skilled assembly staff were you are
and come back to the farm on weekends
Piper Saratoga ??
no chance of having it here of course
a saratoga would cut the commute nicely heh
in summer, yes
about half the days
about 3/4 of the days in the morning
hey , I still haven't even bought a business car yet
It's just too cold to be out on car lots
we'll get some nice days soon
snowy/icy this weekend
no snow this winter here
I thought I saw a light at the end of hte tunnel
not that we've had any real snow either ...
it was just some guy with a torch, bringing more work
oh, I also optoed the stg dio. They have 10k pull-ups, so I should be able to just hook the collector of the darlington right to the input and ground the emitter
you may get false trips from humidity
? think 10k is a little high?
we had an isolated input on one baord that only needed 2 uA to trip it
I think it was 10k or 15k pull-ups to a +15V rail
if you're using 24V, keep that in mind
I usually use about 3k or so
no the stg jut pulls up to +5
ah - ok
the irled will be running from 24...with a series resistor
10k may be all right, just be aware that you might be surprised by how little it takes to trip
I'll watch that
I had some false home trips before...and NC limits switches would need excercising once in a while or they would open up
that was at 5v
24 should mane most of that go away
strange that aswitch would "fail open" like that
well it is a wiping contact...and it never gets tripped on the limit...
but fail open is safe...
sure - that's why it seems weird for it to opn up on its own
the machine will go into hard e-stop
sure, it's the safe way, but strange for the switch to just open from time to time ;)
actually as I recall it was e-stop switches in the limit switch chain
big red button...
have them all over the machine
they were surplus
never more than arms reach away, I would hope
new old stock but perhaps the contacts were corroded
right arm's reach
heh - I was just going to complain that the one time I want to talk to Jymmm, he's not here
err - I mean, Hi Jymmm
SWPadnos: How can I be of service?
well, I'm looking for tickets to SJC, and I'm wondering how long it takes to get from other area airports (SFO, OAK)
also how much it costs for the stupid shuttles
Driving from SFO/OAK to SJC w/o any traffic is about 45 minutes.
Shuttles, no idea.
hmmm - actually, I can rent a car for the week for the cost of a shuttle ride plus part of the difference in airfare
I think one of the shuttle sites had $115 for the RT fare
[21:29:14] <Jymmm> http://www.sjc.org/travelers/d2d.php
I assume those are the only airports close enough to be worth looking at
right - I had seen that page - though I would actually want to go to the Hilton at the convention center
Well SFO is in South San Francisco, Mosconi Center is in San Francisco
a rental car would also solve the problem of how to get into SF for the House of Prime Rib ;)
I'm headed for McEnery
South San Francisco and San Francisco are two different cities
in San Jse
the convention center in San Jose
Ah, never knew it's name
[21:31:53] <SWPadnos> http://www.embedded.com/esc/sv/
Parking in SF is a pain too.
and can be costly.
yes it is, but the valets take care of that, and it's worth it for HOPR
but garages are not bad
gas prices are going up
there will be less cars
is it $5 a gallon yet?
not until we've used it all up
trust me on this
down near $2 around here
$2.30 or so
wow still cheap
it was up over $3, but came back down
it will level out over $5 ... give it 18 months
not with dickhead in office
err - I mean, our illustrious president
still not built my notorgen generator
the funny thing is nobody seems to care
they still drive just as big cars just as much
well, you re-elected him, your problem ..
yeah - funny
not me, baby
wait, for get the "re" thing
SWPadnos: I'd meet ya, but jsut too far away from SJCC.... 3 miles
elected by Diebold!
I know - it's rough
I thought you were 3 blocks away
hte only show for me this year is the atlanta IWF
it's cnc router land
thanks for the 22nd amendment, all you dead guys, we really need it with electronic voting
this is the only one I get to consistently
also Photokina in Germany, every 2 years
I had hoped to have a display this year selling routers
but it was not to be
I was reading through the amendments recently - I was surprised that there were so many recent ones
for a real surprise, check out how long women couldn't vote, even after ex-slaves could
1919 or something
that makes me think we'll have a black (male) president long before a woman
hard to tell, actually
sure, we can only guess
we had Margret Thatcher
I saw one comment like "would you want the person with their finger on the button to have monthly hormonal problems?"
like men don't have continuous hormonal problems ;)
yeah, it seems to be in our culture that we don't take women seriously.
it only happens once per month, for 30 +1/-2 days at a time
rubbish .. they are very useful
might be different on your side, robin
* cradek shrugs
anyway that's my prediction.
as one physicist her said "imagine how much further we'd be if we hand't ignored half the population for the last several thousand years"
who knows, I may not live to see either one.
here, not her
the other fun thing about studying the amendments is to see which states refused to ratify which amendments
and for how long
Georgia has some REAL weird laws.
we all do, I think
things like "women shall not walk unaccompanied after disk"
SWPadnos When will you be in town and for how long?
April 2 - 8
In a town just south of here it is still illegal to eat fried chicken with a fork
I'm sure we all have bad ones - enough to ensure that we're always doing something illegal, no matter how trivial
well, just take a photo of a government installation, and you've breached the PATRIOT act
les_w Georgia has some really strange laws.
roads being government installations ...
or municipal infrastructure
such as electric lines ...
it's shameful to have to say, but I guess it's good to be white and middle-class.
it doesn't hurt, in this country
there are a lot of bad things going on in this country.
I'm kinda trying to not be in the middle class haha
les_w: oh that's easy :-)
les_w: I know just what I'd do to get out of the middle class
just spend all your money - join us in the lower class
I am throwing a lot of money back at the shop
exponential growth of capital equipment for sure...
I have mastered exponential spending
[21:51:46] <cradek> http://www.local6.com/news/6880241/detail.html
I think he's not looking so good
he got burnt
that's one way a low power laser could be fun
oh no it looks like mohammed
argh, I didn't just say that
ok shop is powered down for the day
* alex_joni goes to bed