hope she understand howto register a nick ..
do you know her in real life?
not yet ..
just at cell phone
some days yet :P
ah well, just call her and tell her how to do it.
seen the photos
* anonimasu has to go to a customer tomorrow
one at morning for some testing..
and the other one for a upgrade
i hope to receive this damn reply from gecko ..
wiatinf for a Proforma Invoice
* Jacky^ listen pink floyd
I am listening to turbonegro ;)
some norwegian metal band..
cnc metal band
i love gilmoure
i play the guitar .. a little
me does too
at the same as i speak english :)
ive 2 guitar
right this afternoon, i was thinking if is possibile to machine a guitar..
the material is the big prob
why is it?
i seen some carved guitar ..
what's he trouble you can buy all kinds of wood..
[00:15:46] <Jacky^> http://www.goldenboulder.org.uk/scorpion.htm
i think they use to stick togheter wood layers
maybe les can do it :)
ive not enough tools
I dont get this..
why cant you press the layers togther?
because my weight isnt 200 ton :\
I am sure you wont need that much weught
have you seen the lp hollowbody project on cnczone?
hm search for it ;)
you dont have to make the guitar layered either..
mmhh .. would be good
do it without layered and pressure tool
the machining of the body would be pretty easy..
the hard thing would be the dovetail on the neck..
but with the right tools that wouldnt be too hard either..
anonimasu: i will try ..
[00:28:52] <anonimasu> http://www.cnczone.com/forums/showthread.php?t=7033&highlight=les+paul
* anonimasu craves for a telecaster
Jacky^ es all: Just K`zan on the development box. Almost there :-)
or a strat..
bloody m$ isn't bright enough to tell it shouldn't wipe the MBR, pathetic...
rebooting - brb
-> firstname.lastname@example.org] has joined #emc
it seem remember me something ..
I did not get enough sleep last night I think
slowing down a little
when is needed.. is needed
i don like to sleep much
but during the summer
short days ..
here is starting the cold..
not yet here
now is nice to sleep some hour more
heres raining :\
days still 25 degrees +
here about 15
but its strange wheater ..
right now 20 here
20 is nice temperature
perfect for night time
no air conditioning
we used in june-july
not august ..
in the workshop we keep the climate to 40-60%RH 15-25 degrees year round
so the wood will be stable
i know ..
oh you were looking at inlay earlier
cnc is very good for that
i found something
I saw your picture of a box
about inlay yeah
i like it
i was thinking to made an inkpot for my brother
our latest turkey call design has inlay...you saw it I think
but, im not sure ..
les: nice, i love inlay jobs
the problem is to found goos wood
so, after worked, it can move ..
here is a bit difficult to get
where am I yes..
I had a link...let me check
ive some old piece here
but 5x30 cm
ive not much experience with wood too ..
[02:28:40] <les> http://www.woodweb.com/cgi-bin/forums/gallery.pl?read=311601
the dyed veneers are from italy I think
i bought some mounth ago my fist wood table
about 3 mt lenght 4 cm thickness
I buy veneer usually in 2 meter lengths
after i cut in half .. it become curved
youe a great experience on wood
oh...yes you often have to let the wood stabilise
i choosed a wrong table
the cut direction was wrong
We use moisture meters to determine if the wood will be stable
only after, someone tell it to me ..
well now you know
wood changes size a lot with moisture
some more than others
woods that move little:
woods that move a lot:
pine is medium
my windows here are in douglas
i dont know if is the correct name
wood for furniture should dry to about 7% moisture
but should be douglas
very nice wood
first time i used flatting vernice for boats
douglas fir has a very high strenght to weight ratio
but after some year
long ago airplanes were made of it
i swiched to teak oil
it seem good ..
any year i do it ..
good oil finishes are linseed and tung
boiled linseed oil?
i spent any time abou E. 30 for liter
yes...boiled really means organomettalic catalytic driers are added
les : I use boiled linseed oil for oiling gardening tools (won't harm the plants)... so, just rub it on/in the wood?
E.30/l ??!!! here about 5
yeah pretty much
les: yeah ..
yhat stuff on my site is mostly linseed
a lot :(
I found some really neat hardwood today... though I can't pronounce the name of it
hold on, I forgot the name
has a couple 'p's in it
it could be paduak
is it really red?
yeah, it's pretty red, nice very nice grain in it
red, hard, good figure, expensive?
$1.59 for a 2.5" x 10" piece 3/4" thick
it was the cheapest hardwood they had
even walnut was more expensive
I like it becasue it has a shimmer to the grain
I looked at some cherry too... man, that's some ugly stuff.
[02:46:08] <les> http://www.ellisguitars.com/Padauk.html
les ot looks like this http://www.constantines.com/index.asp?PageAction=VIEWPROD&ProdID=1299
ok I have some.
i like this http://www.constantines.com/burl1_store.jpg
20 board feet or so.
never seen a raw piece of wood shimmer so much before.
I aint looking at burlwood.... not after today $$$$$$$$$$$$$$$$$$$$$$4
as the padouk or burl?
it is also known as african vermillion
but I hate to say it, but I'm not sure that it what I got (I forgot to write down the name of it)
it does turn brown after many years
that does not ring a bell
ive the indoor doors in oak
yeah I just cant remember the name of it. They have bins of hardwood pieces, I'll go back sometime and write it all down
they seem changed a little color too ..
after 5 years
I have to buy the curly tiger maple for this year's call production soon
they had some exotive hardwoods that I would hate to be hit with they are so dense.
even an 8" piece was awefully dense.
denser than aluminum, that's for sure.
padouk, ebony, jatoba,rosewood...all heavy
denser than teakwood or cocobolo
something like $35/BF
some very heavy woods in the US too...
what if BF ?
hop hornbeam, dogwood, persimmon
persimmon is a hardwood?
it is in the ebony family
hmmm, I know where a 16" wide tree is =)
I have a few dozen growing here
Jymmm: want to cut it ?
les make any wine?
no just beer
oh, I'm thinking pomigranite
but I was visiting the winery yesterday
Jymmm: for a good wine , we've it : http://www.linardi.com/
I can send you some bottle :)
just down the street...
i dont know this year ..
[02:56:24] <les> http://www.tigerwine.com/news.html
Jacky^ i *HATE* wine. I even used to work in a winery and got free wine all the time. I just give it away.
Jymmm: i'm sure
your place is pretty similar to mine
Jacky^ me and the gf thought it tasted like shit, gave bottles to a friend and he said it was pretty good.
but you dont have this* wine ..
it is international
about 60 km from me
I am a little allergic to grapes I think!
les try a bottle of tequilia just to be sure
actually I was at the vinyard because we sometimes cnc carve wine barrels with emc
also, we had politics to talk about
we are trying to stop some development
les you'll have to send me the drawings/gcode sometime. there are a lot of wineries in the area
i never tried wine from there ..
italy has a great tradiction about wine
v carve their logo on the barrel ends...they love it
is difficult here to see imported wine
yeah, all italians are winos!
france too ..
I'm a beero.
I'm a Jose Quervo !
les tell me about clearcoats on wood
I've been using polyurinthane and I like it, but is it the best to use.
well... different ones have different effects
for wine ?
PU is usually isocyanate modified alkyd plyester/vegetable oil based
wood is wood
Jacky^ Yeah, we put polyurithane in wine over here.
Jymmm: also here.. is useful, but not the same thing
PU is usually amber and best on dark woods
no need maintainance
I PU some red oak... really nice
brought out the grain and color
then there is nitro lacquer
and PU is some tough stuff too.
I haven't tried snading it yet.
that is on the inlayed turkey calls
how do you snade something?
sandingPu that is
Yes, that is sanding POO (PU)
it can be a problem if it dries to long...
and two coats of PU is POO POO
guys, too late for me 03:31
night, weel see tomorrow
PU needs to be recoated soon or it may halo when sanding
then...the king of finishes....
the french polish.
which is dewaxed shellac
when the first coat is tacky, I put onthe 2nd coat
Well, I doubt I'll make anything that'll last 200 years, so...
[03:09:18] <les> http://www.milburnguitars.com/fpbannerframes.html
french polish will last 200 years!
Do you know WHY I use spray can paint and finishes???? Becuase I have ZERO room for anything else... storage or even a place to dry overnight.
It's a piece fof plywood sitting on top a bag of bark.
oh I use spray cans too sometimes...and I have about 20 spray guns!!
ok, so if I rub linseed oil on this stuff, how many coats for one, and can I PU it afterwards?
old rule of linseed oil:
once a day for a week...
once a month for a year...
once a year forever
no don't put PU over it
but PU over watco danish oil is ok and will look the same
get thee some watco danish il
looks just like linseed
never heard of it, will look next time I'm at the lumber store
linseed really never dries
I had to stop handlning the stuff I got today as I can see it absorbing the oils from my fingers.
that case work on my site...the mahogany one...thin PU over watco.
you be the judge
the jewelry box below is french polish
I like the finish on the white oak drawer
and the turkey call is nitro laquer
but not on the jewlery box
the finish on the drawer= nothing!
drawer front I mean
I like semi gloss that brings out the color/grain of the wood in general
oh...PU over watco
I don't care for stains too mucj.
I enjoy the natural colors of wood
only the turkey call is dyed (not stained)
all other pictures are natural finish...zero stain
I was jsut saying about stains in general
unless you're staining some plywood for cabinets, then thats another story all together =)
the nitro on the call is dyed green
but no stain on the wood
it is quite flammable
the dyed nitro on the calls we tried in:
candy apple red
the "camo green flamed maple" is the winner. people like that best.
well, I'll stick with what comes out of a spray can for now =)
you can have whatever you want put in one...
I did find that rustolium offers their spray paints in quarts too.
I wanted to 'roll' on some paint on relief carvings
but have it dry rather quickly
I got some 1/4" hardwood dowels today 48" long... seems better than using fluted ones.
you know that oval sign with my logo?
semi gloss PU.
now I need to design up what holes/grid I'll drill in the table tonight.
2" seems too big, and 1" seems too small.
I have a 6 inch grid
bigger table though
yeah, and I've seem to be focusing on smaller stuff
each hole in mine has a steel threaded insert in it
3/4" MDF tabletop... no inserts. thinking about going 1/2" deep holes
how will you hold the work down?
or sideways you mean?
Ah, that pyramid I made wasn't suppose to turn out that way... it was an idea for a clamp...
take a 2" piece of material
staircase two side of it, like the pyramid
then cut a 15 degrre angled slot it it
one dowel goes thru the slut and slides sideways
againest the workpiece
"one dowel goes through the slut and slides sideways"
what the hell are you doing??!!
what size dowel is that?
I have had stuff come loose and slide around
it is exciting
| --- |
| / / |
| / / |
| / / <-- 15 deg |
| / / 1.5" long |
| / / |
| --- |
oh so it jams tight
(poor ascii art )
just don't use upcut bits!
I can use them for irregular shaped pieces too.
well, I might thread every other hole 1/4-20
I made all the inserts on the lathe
in case I do need to clamp downward too
* Jymmm looks around for the lathe... what lathe? lol
I have lots of vacuum holes too
If you would have said it's ok to use a jacobs chuck in a router yesterday, I would of had a job for your lathe.
jacobs chuck+ router=death
yeah, that's why I asked the master!
I picked up another 24" 24" MDF today... I WILL make that harley sign!
and make sure the power cord for the computer is fully seated this time
I finally ordered that signfoam
I thought you ordered it last week
or two weeks ago even.
1.5" x 4'x8'
naw I put it off
how much $ ?
for one sheet?
Um you do know MDF is MUCH cheaper =)
signfoam sheet will make $1200 worth of signs...and will last 10 years even out in desert hot sun
so, you can lice on $1200/decade?
you use spiral downcut bits right?
actually, I am sorry I took these sign orders right now. It caused me to have to farm out $100/hr engineering work. I can lice better on engineering rhan signs these days
I hear ya =)
on foam...it does not matter much. It cuts like air.
les : Check out the pricing on their CMT bits... http://routerbitworld.com/index.php/cPath/1686_1687_1688_1693
I just paid $17 for the 1/4" CMT downcut
and shipping is only $1
looks fine...really good price
That's where I ordered the collet adapter from already.
it's the cheapest I've found
the one I ordered has a flute on it
on the cutters...griz is a little cheaper...but CMT is better...stays sharp longer
um um um what am I thinking... a lil sideways nub
so CMT ends up costing less really
a nub on a collet sleeve?
yeah (cant think of the name) prevents from going in all the way
I need to clean up my mahcien tonight and grease that puppy
the ballscrews are getting dry
yeah kep em well lubed
mdf dust really soaks up the grease
is MDF "non toxic" ?
MDF dust is quite bad for you.
I don't have to grease a puppy, but I have to put flea killer on congo.
not the dust, as much as consumption by pets/babys
jymmm: MDF isn't good to snack on.
formaldehyde is in it, etc.
bummer, I'll have to find some other wide material then.
MDF dust has amine/phenolic resins
amines are bad, but not as bad as the urea formaldehyde
jymmm: if you're seriously machining MDF and kicking up a lot of dust, you should definitely wear a respirator
some MDF does have urea formaldehyde too
icee it's in an enclosed envirpnment
MDF produces some particles that are finer than come from other wood machining operations, and that is bad enough alone to cause lung problems.. and then u.f., the amines, etc aren't so good
but there is some leakage
jymmm: that's good. I'd be very very careful
It's not good to find out one day that your lungs don't work well anymore
mine are about shot icee
I'll make a better enclosuer in the future to contain it better and exhaust it once the job is finished
exhaust == vaccuum =)
MDF sure makes the dust
the toxicity, dust, weight, etc of MDF is unfortunate. It's such a nice material for a lot of things though.
sign foam is HDPU ?
ok cool. High Density PolyUrithane?
Blocked polyisocyanates. wonderful stuff.
cyanate ~= crazy glue
no crazy glue is mehyl methacrylate and stuff
oh, I gots confusidideded
there are some cyanide like things in crazy glue..
and apple seeds
the "stuff" I mentioned
signfoam toxic too I suspect?
yeah signfoam is
Did you know crossign the street causes cancer?
isocyanate precursers killed all those in bhoppal
crossing the street?
yep. I mena everything causes cancer, might as 2ell be crossing the street too
les what was the url of that painting robot
LIFE is not ONLY a sexually commicated disease, but it is FATAL. Reason #11232343245 that the enviroloons tell you WE'RE ALL GONNA DIE!
Well I saw on cnn that a vaccine was developed that is totally effective against cervical cancer
too bad I am not a ...um vagina.
yup. because pretty much all cervical cancer is caused by the genital warts viruses
les you are what you eat
That isn't what I have heard ;-)
Hummm, 1 step = 1/4000th inch (assuming 1/4-20 allthread) WOW.
that should work.
bloody fine resolution :-)
On my machine an encoder tick= .0001
old rule is
200 steps / rev and 20tpi
accuracy= 10x resolution at best
accuracy is 1/40000th inch?
with servos not steppers
not with stepper
would be a lot more convenient at 10 tpi though - numbers easier to work with.
actually today me, mr "use servos" had to start designing a stepper system for some industrial automation
Not sure what TPI value would be best / easiest to work with.
K`zan what type of machine?
I don't know...'ll prob use 298/ double stack bipolar
K`zan what TYPE
K`zan gantry router? mill? lathe?
Prolly a simple router thingie first.
It is the production tester for the club car throttle position sensor
a golf cart part.
It is the thing I was considering using the labjack ue9 on
the software/firmware does not have the functions I need
called 'em up.
They said no problem we will write em.
I said ok. So I farmed it out to them.
I hate doing that. but I am overloaded. I have a backlog
So they write code. I sit at a word screen and write spin.
les can I stpedown an 1/8" downcut bit into MDF by 1/4" ?
I know you said only go to the diameter, but...
you can try it.
have the goggles on!
no rule is haed and fast
well, this sign will take 3 hours otherwise is why I ask
get one of those cheap little kitchen fire extengiushers
popping a 1/8 bit isn't going to be the end of the world.
it is when you dont have any spares available
yeah some little xomething like that
from walmart or whatever
this one isn't dry chemical, so it's not corrosive
burying a running router bit in a cnc table is the ultimate rubbing two sticks together
lol, no shit huh
normally it would just smoke and char...but then there are all those chips and dust all over
does that mean I shouldn't have placed my router on top of 48" x 48" x 1" slab of magnesium?
thats what my vibration table was made of.
110 lbs table top
10 g log
I have used tham
everybody hated me... I'd be shaking that end of the whole bldg
This is what spreadsheets were made for !
and talk about LOUD
yuga still is excited about servo motor speakers
les oyu would have LOVED the amps.... all wax string... you could trace each wire in the bundle from start to finish. ZERO twisitng
It was a work of art
no clamps at all on the water cooling for the IC's
I told him today I would derive the equations to relate servo motor parameters to Thiele small
polar moment of inertia to Thiele small Mms network parameter
and torque constant to Thiele Small B cross L product
then he can plug in real world servo moter specs
and see what happens.
I have not done the math yet
and I don't know what the results will be
is that for chris' drivers?
no it is for very large loudspeakers
driven bt motors!
10TPI is what I really want.
same math, a cnc machine and a speaker...it's the same.
10 ypi? why?
hey les... broke down and ordered 3 of those 300w ac servocs (no brakes).... they are going fast only 65 left!
well like I said...
les: Dunno, still trying to figure out what leadscrew TPI would work out best. Perhaps I should go see what various machines have in them,.
cheap motor+ expensive driver is better than expensive motor+ expensive driver...right?
My brain is too fried today to deal with this more, what in hell is on TV.
there is a bldc motor group I follow.... will have to check and see if anyone has played with 3 phase servo drive
Yeah, I know that, but sensless mind rot wil do ATM :)
5 TPI is typical for metalworking
I am thinking mesa card to do 3 phase pwm
Seems very couse for some reason... /me works math
have to balance things to match motor and load mechanical impedance
%tpi is typical
for high speed routers as little as 2 tpi is used
200 steps is just NOT jelling in my head tonight - I think I need a good nights sleep at this point...
yeah me too
only 58 left ... http://www.surpluscenter.com/item.asp?UID=2005101222300732&item=10-2208
but 200 steps per rev....1000 steps per inch...is 10 times better than the lead accuracty of hardware store threaded rod
what lawrence? this time of day?
les should we tell LawrenceG qbout the 1000W ones for $34 ?
those are going quick too... fro 365 now to 272
Lawrence some others are thinking as we were earlier huh
i guess.... hope I dont break one!
those big ones would be good for a mid sized spindle drive
or a bridgeport, or big woofers!
they could run a 4x8 ft router or big mill easily
shal we say snappy!
like .5 g snappy
now where is jmk?
sleeping soundly in ohio no doubt
a lot of people think they are gonna get a big break on the prob $1000 drivers....
er ac srvoamps
les nah... 3" x 3" PCB machine =)
well Lawrence made a good observation...without a servoamp the motors are just so much scrap iron...
Now I have to figure out a way to make "gunmetal" paint
every motor has to have a servo amp
where are they?
Easter Bunny is hinding them.
heh bed time for me
cradek: do you have a overview on the dependencies of axis ?
[13:45:01] <cradek> http://axis.unpy.net/index.cgi/installing
these instructions may be partly out of date, but the dependencies have not changed.
if you're using a recent bdi, you already have everything needed.
cradek: btw. i allmost finished a rambased livecd. python @ axis dont fit into it right now, so i try to stripdown where possible
checking dependencies with lsof and strace doesnt help me much here :)
cncuser is now known as cncuserAFK
cncuserAFK: that sounds like a great project
yeah, I'd like to see a new "live"-type emc disc too
cncuserAFK: are you using a 2.4 kernel so it can run all versions of emc?
cncuserAFK is now known as cncuser
cradek, jepler: yes, i like working on it too.
cradek: yes i use 2.4 kernel
cncuser: that's great
cradek: which makes some problems with usb devices/controllers as i found. but is small fast, and well tested
cncuser: I use 2.4.31 successfully even with USB stuff and SATA drives
im uploading an iso tonight. about 60MB file
you can try :)
I thought you said you were out of room
no axis by now, just rtai+emc
and a nice small window manager?
yes i am, it copies itself into ramdisk and needs about 256 MB to run totally from ram
oh, I see
you can do an install on hd and need 128mb
or you can put you /root (home) on a usb stick. and run partly from ram and usb-stick
i "raped" puppy linux 1.0.4
jwm looks OK. Is it easy to do WM actions with the keyboard (change focus, close, maximize, iconify, etc)?
yes, and easy to configure too
I really like icewm, and its biggest feature for me is all the keyboard shortcuts (which by now I know by heart)
i used icewm longtime
then fluxbox, then xcfe, if id have more space id use xfce
ok, i also used enlightenment, but just for the optic candy..
are you the fellow who reported the axis bug with fluxbox (selecting jog step size)? we fixed that at some point...
no, sorry, not me
coul you say how much space axis may need (including all python deps) ?
do you have tcl/tk yet?
yes, i have
i need mesa too, but thats a small thingy i assume
well, a full python rpm is 16 megs (rh9/python2.2) to 21 megs (fc4/python2.4/x86_64) but
but not all of those files are used by axis
should emc2 close orderly if i send it a HUP ?
which part of it?
jepler: yes, thats much too big :)
you should exit/kill the gui
jepler: i need to turn off all unneccessary features
then the script will probably clean up
it also requires blt which is a 100k shared lib and 200k of script files
cradek: well, wehen i run emc.run from with a shell it cleses when i close the gui
but when i launch it from rox-filer, it doesnt
* cradek shrugs cluelessly
it would all look great now, if i didnt have the problems with not unloading rtai modules
hm, pyopengl seems to (needlessly) pull in numpy
yes, im too clueless, raped the emc.run and reused the Cleanup function. right now im killing the modules redundant (many times)
numpy, never heard :)
hmm, the libs can be upx compressed i think
well, im on with cooking today
if youd linke too i mail you when im finished and where to download the iso
I'd like to see this thing
me too (I'll see jepler's copy)
thanks i know your email from the axis homepage
now too some beef, potatos and zuchini :)
two out of three of those things sound good
bleh have to design a quick stepper system this morning
highest possible torque
wish I could type...
ok...58 in oz....bipolar
on to the allegro web site
full step...bipolar...current drive
owwww all of them are surface mount
i'll just use the old 297/298 I guess
venerable, not old
every new allegro bipolar drive is surface mount
pain for the technician
even the driver transistor part?
I'll show you
I like SMD but it's silly for high-current stuff.
[17:13:55] <les> http://www.allegromicro.com/sf/3979/
nice, but it's a one time deal.
don't want to do a board
wow, that's cool
I'd be worried about how to heatsink it though
the older packages work better for that I think
yes very nice...but I want something the tech up there can whip out on a perfboard
I need a couple amps bipolar full step
the boardhouses are cheap
guess 297/298 is the winner!
I used to perfboard but I've sworn off of it now; it sucks.
the end result is at best janky and at worst unreliable
and can be checked on a proto board
making the second one is just as much work as the first one
will he need 3?
well I am talking about a good fr4 tinned copper board
we only need one...
not so bad then
and the tech is about $50/hr....
I don't want him tooling up a pcb
not for one part
this allegro is only 35v
but...I must admit...those new allegro simplestepper chips are very nice
I am only running a NEMA 17
it's just for a piece of custom test gear
it turns golf cart throttle position pots...
reads the bar code...
logs the stuff...
and does some spc
you could use unipolar and four transistors for that
TSSOP pins are only 0.22mm wide - I wonder how they get 2.5A through that
I don't see how you can drive the motor directly with a TSSOP package
I was using unipolar befor...then they upped the return spring torque on the device
I wanyt to use the same motor frame
so I need to go bipolar
oh..the allegro device has a heat sink pad area
did you have HV and ballast resistors?
It just wasn't enough
I am slipping steps
and I am maxed out
I wonder how much more you can get out of it
bipolar... I can get 58 in oz out of a double stack NEMA 17
currently running 22 in oz
it was fine until they changed the spring
ok. done. parts ordered.
yo ho ho and a bottle of rum
new software eh
les pay attention!
pm ain't working
les you're not registered?
sigh, hold on
yeah I am
pm is only going oneway
les then you need to login
it's working with other people...
les /chanserv identify <password>
les /nickserv identify <password>
anyone into emc2 development? is it usable with the xenomai rtai branch?
les did you identify yet?
not doing emc2...did you get your bearing stuff straight?
les - dunno.. the bearing I chose and that I have incorperated in the design is hard to get hold of apparantly.. even tho it is in the brochures I have.. few ppl are using them they say.
les - dunno.. the bearing I chose and that I have incorperated in the design is hard to get hold of apparantly.. even tho it is in the brochures I have.. few ppl are using them they say.
where are you?
what shaft size?
what I want is a 10x26x8mm bearing (10 => shaft)
its called ISO1010
standard 7000 bearing
But I have called 20 atleast different resellers..
they dodnt have'em
I only see them as abec 7 (forgot which iso class that is)...$623 per pair
you do not need that accuracy class of course
want something for about 10bux guess.
not in this country!
sicko prices for the pair-matched hi-speed ones!
not new anyway
they cost like 20$ here in norway.. and we are hell-expensivew
fuel costs 2$ pr liter here.
I have 7020 abec 1....$58.15
my catalog only goes down to 7020...tha'ts 10x30x9
problem is that want 15mm shaft-edge
the 10x26x8 says its ok with 12mm
7000 (1010) does seem to be hard to find
and when taking off the threads on my 16x4 trapezoid.. I have like 11.8 maby.. on a good day
les - do you have good solitions for this?
well not sure I am understanding...but
possible to add a spacer thing maby? can you crimp this on the shaft?
les - When taking the threads off the 16x4 (mm => diam x inc) trapezoidal screw .. I have less than 12mm left of the shaft to go against the bearing
the standard thermally stable design is duplex AC db (back to back) on one end and floating deep groove on the other
oh ok I understand
I guess your ballscrew is a little too short for the size you want?
Not short.. the diameter of the shaft after I take the threads off the end..
..to go against the edge of the bearing.
what is the biggest diameter that you can do?
just under 12?
the 10x30x9 7020 bearing says (from catalog) that it needs 15mm shaft-edge .. on my 16mm I can get 12 on a good day
just under 12, yeps
les - got any good solutions for that?
well you are stuck with iso 101 it looks like
les - fuck.. playing with rtai .. crashed my machine
les - did you say anything last couple minutes?
tzi you could make a short spacer
between bearing and shaft edge
les - I could .. possible to crimp this on in any way..?
les - do you know the "correct" way of doing this?
press fit yes
les - only thing I am worried about is the price..
I am on a tight budget.. but want this done professional..
therefor some company will make all my parts..
..but this will be extra time for them ofcorse, and extra money for me.
yes I am seeing high prices...I too was able to buy $20 AC bearings in the past...but they have gone up a lot suddenly
ac bearings are rare to find surplus too
for yor spacer....
les - think of skateboard bearings i.e .. not AC... but really good bearings.. and what are they? $2?
the bearing mafia!
les - yes.. my spacers..
you can used them as AC in pairs....contact angle ends up being about 5 degrees
center hole in spacer needs to be about .005 smaller than shaft diameter
for a medium press fit
Ill be back in 2 minutes, tell me all about it in the meantime (you talking inches?)
les - can I dcc send you a image? have some design questions.. easier to explain if You can look @ image same time..
just have to export it to png from solidworks..
there you go. pdf
les - do you get it?
grr connection is failing
try once more
maby some fw is stopping it..
les - mail?
failed...yeah fw somewhere
(not woried about spam)
les: can i send you some commercial info ?
I really do not have a spam problem. just the usual meds and millions from africa...tha't about it
les - not the penis enlargement?
i will send you 10-15k mails from porn-sites
should be enough
oh, and a couple times a week I win the"european lottery"
les - check your mbox
* Jacky^ machining a staaar :P
nothing yet tzi...might be a minute
let me say that inline skate bearings might be best for you
they have ok thrust load operated in db pairs
the only thing missing is axial stiffnes
for your machine no problem I think
some guy told me the same..
that regular bearing are ok used as AC if load is not too high
with proper inner and outer spacers they can be run as 3-5 degree angular contact
they should take 1/3 of the axial load in the other direction
they have radial clearance. that means one bearing would have lots of axial clearance. Used in pairs with inner and outer sleeves this clearance can be removed
les - do You have any drawings/info on how to do this right?
let me check
I do not have a drawing using deep groove bearings as angular pairs
I am having some registration problems...you may not see me on PM
business is good
[19:26:52] <tziOm> http://www.gmnbt.com/deepgroove_technology.htm
didnt see you, no
/msg nickserv register <password>
/msg nickserv identify <password>
got the mail yet btw?
* fenn mumbles something or other
can i tell which wires are the start and run windings of an induction motor by measuring the resistance between them?
it's not a capacitor start motor
hi fenn :)
maybe it doesn't matter anyway since i'm supposed to connect them all up anyway
good morning jacky
fenn: wich motor ? how many wires ?
les - still awake?
fenn: stepper ?
Jacky^: 1/4 hp AC induction motor
i think i've got it figured out
ac == BLDC?
no, just a good old AC motor
for my lathe
fenn: no clue ..
but to try with a small transformer should be not dangerous.. i think
when no datasheet exist.. it seem to me the only way
sorry sorry long call
a commercial cnc router manufacturer wants to try emc
I'm goona get him on here
les - what?
les - check now.. sending from some other account..
got it tzi
I am on the phone a lot.
I talk on the phone for a living
Jacky^ is now known as jack-gnam
les - cool.. so, what do You think?
yeah looks ok
les - one question I have is the fasteners on the top i.e .. the 3 ones.. they are m6, and the verticals are 20x50 aluminum. Is this the way to fasten it. (other configurations?) what depth should I make the threads down, minimum?
about two diameters
if you yorque to 75%
thats a rot?
well, a properly tightened screw carries no external load.....
and at typical torque tables you need at least 2x diameter thread engagement to prevent stripping
75% of what?
yield point of the fstener
how can I figure that?
There are standard tables on the net
les - would you place the fasteners other way? center of outer ones are 8mm from edge..
hunt upscrew...gives torque
a little close...but looks ok
les - do You think I can go for m4's instead? .. and is it a rule-of-thumb with 2xdiam? that would make 8mm threads for m4s?
if they are hardened machine cap screws yeah m4 prob would be ok
les - and the depth of the thread 8mm is ok? I really dont need more?
les - are there guides on this type of design that you know of?
at least 8 mm. If the aluminum alloy is very soft, a bit more
but 8 or so for alloys like 6061 etc
so 10 is good number then
bad propagaation delay lawrence
i'll call you
no hearing you other than taps on mic
I have a problem on this end
i'm gonna reboot
oh les.... where did you go.... must be a windows box!
jack-gnam is now known as Jacky^
I swear greasing the slides is such a PITA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
sounds like a euphemism to me
jepler you pervert
jepler no wonder why i like you so much
gee who woulda thought it would take all day to hook a switch up to a motor :P
fenn you wuss! cant you just touch the wires together when you need to!
hard to touch 4 wires together at once
fenn hey you have 10 fingers.... no excuse!
you can use foots too
fenn See... what Jacky^ said.
fenn: kidding ..
fenn no he's not! YOu know those Italians, they use their feet for stomping grapes!
thats why its nice :P
maybe it's why I don't like wine =)
today.. we use only cnc machine for wine
no foots :\
that's worse... now you have grease in the wine!
$1200 USD for 3 axis DRO package including scales (16x36x6) - is that a good price?
I dont know about that quality
there's lots of thoose dro's over here..