I wonder which idiot it was that decided to make a part with an M20.5x1.0mm thread
what's wrong with m20.5x1
well. if I had either a CNC lathe or an M20.5x1 tap, it wouldn't be so bad
perfectly easy to make on your cnc
Or manual lathe?
SWPadnos: Um, what was that thing you drove around the world in 20 feet of snow, then had parked outside your igloo for like 14 years?
if I had one of those, it would be marginally esier
Jymmm, you mean the not-exactly-working ready-for-retrofit lathe?
SWPadnos: A what did you say? a CNC LATHE was it????
a lathe that's not yet retrofitted doesn't count
why did oyu get rid of it anyway?
it's in the garage now
SWPadnos: Got parts et?
for the lathe?
no, the spacecraft.
I haven't finished the zero-point energy antigravity drive yet
SWPadnos: screw that.... nuclear fusion and be done with it.
nah. uses fuel
SWPadnos: Next timee you're out, we'll head of to LL
OK by me
if we can get in ;)
SWPadnos: We can, if we schedule it right
let me know then
There's a monthly ham radio meeting iirc
I guess I'm hungry
I dont know if we cna see the partical accelerator or not though
well, the inside of it that is
the outside you can see from the freeway as you drive over it
I'll bring my hadron-resistant suit, just in case
When using an OPTO22 card and a MESA 5i20 can any pin be assinged as an input or output?
but only with the hostmot2 driver
SWPadnos: Sorry it's Stanfords that you drive over... http://maps.google.com/maps?f=q&source=s_q&hl=en&q=Stanford+Accelerator+Center,+Menlo+Park,+San+Mateo,+California+94025&sll=37.713973,-121.703796&sspn=0.134167,0.178528&ie=UTF8&cd=1&geocode=FUD3OgIdtVW3-A&split=0&ll=37.415471,-122.221227&spn=0.016838,0.038667&t=h&z=15
SWPadnos: that horizontal line is it
oh - it's linear. must be small
Is this the Scientist verions of a checkered flag? http://maps.google.com/maps?f=q&source=s_q&hl=en&q=Stanford+Accelerator+Center,+Menlo+Park,+San+Mateo,+California+94025&sll=37.713973,-121.703796&sspn=0.134167,0.178528&ie=UTF8&cd=1&geocode=FUD3OgIdtVW3-A&split=0&t=h&ll=37.416408,-122.20499&spn=0.000503,0.001021&z=20
it's onlyon one end
that's a long building
I was thinking the line was what we could see from the construction of an underground system
Like I said, it goes under the freeway
nope, all above ground
lots of photo transitions along that building
thats an insode photo
[02:40:14] <Jymmm> http://upload.wikimedia.org/wikipedia/commons/8/87/SLAC_long_view.jpg
someone needs a more sensitive camera
and/or a tripod :)
or a 14kw zenon flashlamp
jesus did i really just say zenon
or 28 500W ones
yez, u did
i have nothing else to say, out of shame
that's a linear accelerator?
toastyde1th: No, a popcorn popper. I thought you weren't gonna say anything else?
you probably could pop popcorn with that
weird science style
i hadn't read the backscroll, so it was just a long hallway with crap on one side of it
toastyde1th: It's he Stanford Linear Accellerator
2.5 miles long
that's not a moon
toastyde1th: that big long horizontal line is it
a very, very long hallway with crap on one side
i especially like the part where the freeway goes over it
i'd also have thought the business end of the thing would be a bit bigger
well, seeing the the inside is less than 12" I'd hope noght =)
SWPadnos: Which 3Ware card do you have?
i forget that most people don't know the difference between an automatic and a manual transmission is internal, and has nothing to do with driver control
then i remember i am nerdy, and it makes sense
when I need to use 2 drillbits to make a part using EMC, does EMC pause and prompt me to change the drillbits ?
hi when run stepconfig i get this error http://pastebin.ca/1507836
uncheck create desktop shortcut
its borked atm
aah friend was just trying it at least quick getaround
robh: should be fixed in the next release
joeyk__ is now known as joeyk
not a problem alex_joni , also dont seem to have chargepump output on parallel but iv not looked into it yet hal looks right but no enable signal out
what kind of emergency stops can be added to the system? Few normally-closed switches at any necessary places close to the machine, itself, right?
which turn off the power supply to steppers, or to a breakout board.
ilya_: there are those limiting switches
but I'm not sure where they fit in
except that they are triggered when you move out of the acceptable area
you can also have a separate E-stop chain, with one or more switches in it
like a big red mushroom switch that says "E-STOP"
also door switches and the like would probably be in that chain
gecko's manual says something about it.
oh, I take it there is a way to position pre-fabricated parts under an EMC2 controlled CNC machine ?
I should try out the live cd
tom1 is now known as tom3p
What are standard feedrates? At least which one to think about?
for metal cutting (with bits) machines
*with milling cutters
i usually run around 500mm/min
with a machine that leaves a lot to be desired in terms of rigidity..
but of course it depends on a lot of factors, cutter geometry, number of cutting flutes, depth of cut..
I'm trying to calculate the thickness of metal to be cut and therefore maximal forces
material being cut, cutter material, cutter coating, coolant type, spindle horsepower ...
What if I try to make such machine myself? If it will be poor in rigidity, I will have to run it with low feedrate, right?
And it will work.
But I probably need a maximal possible rigidity, right?
ilya_: yes, and low depth of cut
DaViruz: low depth = cut twice same path, right?
For this sake, DXF2GCODE program is good, free and written in python, though understands only the `0' layer from DXF
oh, i'm starting to understand this all.
i thought about two leadscrews, made of pipe, and small cheap roll bearings at the end. these leadscrews could bear the carriage.
you probably won't be able to cut metal with that
cradek has changed the topic to: Welcome! EMC (Enhanced Machine Controller) is a linux-based opensource CNC control. | Latest release: EMC 2.3.3 | http://www.linuxcnc.org
| Channel logged by logger_emc
SWPadnos: What 3Ware card do you have?
cradek: ah... i just trying to imaging. I actually should look some analogs before i try to imagina a prototype
what do you want to cut?
cradek: 5 mm-thick metal sheets
with extreme patience you might be able to cut 5mm steel (in many passes) with a tabletop machine weighing only 75-100 kg
you simply cannot make a machine out of wood/drawer slides/skate bearings and cut steel with it
cradek: i imagined two pipes 3 in in diameter and another ewo pipes, and a spindle
and some small (=cheap) roll bearings
I wonder if you'd have better luck with plasma/laser if you want to cut only sheets
one pipe has a thread, another is just smooth,
you'd have a fighting chance of making a machine to do that, because there is no cutting load
this kind of building is outside of my realm of expertise
number of ports?
SWPadnos: Hmmmm, I dont think they make a riser crd for PCIe
I'm pretty sure I just saw some
2U three slots
what is a common practices to fit metal sheets on a table?
so low profile cards will work without a riser
[16:55:25] <SWPadnos> http://www.plinkusa.net/riser.htm
SWPadnos: I doubt it, the case backplane is offset and at a right angle
Where the PCIe 1x slots are, are not aligned with the slots in the rear of the case
but they have horizontal slots that would line up with a riser?
oh, they use ribbon cables. Hmmm, wonder how that stays secure
let me look again...
you can't expect a riser to hold a card without also having a screw/bracket
if you need to, you can remove the bracket (from many cards) and rig something up
Ok, the two PCIe 1x slots are "overlapping" the card slots
the x16 isn't
it sounds like the motherboard is installed wrong
lol, there's only one set of mountng holes =)
unless I turn the mobo upside down
no, that won't work either, one hole is offset
does anyone have experience with "project management software"/ERP and is it not just a buzzword?
i.e., does any of it actually interface with emc?
too funny. I have that motherboard ;)
kanzure, there is no ERP interface that I'm aware of
you could remotely control EMC2 machines with ERP software, if you write it correctly
SWPadnos: right, but I'm just wondering if someone has already done it
Jymmm, yeah. it's in my closet, and I don't remember why I'm not using it
kanzure, no, not that I'm aware of
have you ever used ERP-stuff? I haven't.
ok. maybe it is a load of crap.
SWPadnos: I have 2 1U's, I pulled it from the 1U and tossed it in to the 2U
SWPadnos: It needs a 8pin from the PS. maybe that's why?
I wonder if I just didn't have a socket 939 CPU for it
oh - that could be it. I bought it off eBay as a combo with a Opteron 165, but it turned out that it wasn't a combo, it was just the motherboard
it was still a good deal, so I decided to keep it instead of fedexing it baxk to them on fire
SWPadnos: Ah. I was able to install ESXi on it
SWPadnos: Anywho... you can see why I'd need some type of riser.
you may need to get it from the case manufacturer
hmmmm, let me check...
that's a standard footprint motherboard
I have the -RS version. I wonder what the difference is
can a pcie 1x fit into a x16 slot?
it will only operate at 1x of course
The slots look different - the key s on the opposite side
you mean the retaining tab?
in the slot itself
it just looks weird because the "back part" is smaller. the section near the slot covers (in a normal case) is the same size
oh, I guess not. nm
What is the `riser'?
ilya_, see the photos here: http://www.plinkusa.net/riser.htm
Pink's boyfriend probably ;)
Where do those small connectors should be connected? some places on the motherboard? I don't remember any.
Small connectors are USB slots?
SWPadnos: Ok, looking at this pic, the x16 slot is at Slot #7
[17:41:45] <Jymmm> http://www.rackmountmart.com/html/rc1.htm
yep. looks that way
SWPadnos: click on the back view here http://www.cidesign.com/product_detail.jsp?productID=60®ion=us
ok. I can't see if that top slot is really a slot
SWPadnos: Do you see the set of vertical vent holes just to the right of the mobo IO insert?
yes. I can se ethat the case doesn't allow you to use a card in the PCIe x16 slot
it's the only column of hole that goes full height
THAT's where the x16 slot is - so it's close.... REALLY close.
you need a 3-slot riser
Yea, there are three horizontal card slots.
(or less, if you don't need all 3 slots)
looks like R2018 from rackmountmart
That says on slot #6, need on slot #7
but no PCI
2022 has PCi
as does 2018
I need two pcie slots, not PCI
what you need to see is which slot the riser needs to go into so that the cards line up with the horizontal slot covers
2025 is the closest then
I don't know how you'll cut down the second ribbon to x1
or if it will reach to slots 1/2
That's pretty ugly, plus the physical mounting internally
[17:49:14] <Jymmm> http://www.rackmountmart.com/prodspics/r2025-7-02.jpg
yep. it's pretty nasty
so you need two PCIe cards?
SWPadnos: If I get two 4 port sata cards, yes.
get 1 8-port instead ;)
Still need a riser either way.
but a single PCIe (with or without some PCI thrown in) would do
see if you can get a case back replacement so you can use low profile cards
the 3ware is low profile, there are low profile video and LAN cards ...
but the slots in the case are horizontal, not vertical
see if you can get a case back replacement so you can use low profile cards
Slot #7 is not acesable from the rear even if I do
it's behind those vent holes
well I figured out why there is no big transformer - the servo dc supply is not isolated
is this typical? seems scary.
switching PS ?
Well, if there's no xfmr there has to be magnetics, mabe a torroid?
no, 3 phase 240 to huge diodes to huge caps
to huge transistors of some kind, to huge servos
240 3ph what is this? a 10hp motor?
no, this is the servo (axis) motors supply
Must be some big ass triacs in there
like would need a 11/16 wrench or something
cradek: on our latest gen. of robots we simply have a erctifier from 400V AC
so you get a 565V DC bus, and there's no separation transformer
there is a sep. transformer for the PC/computer and IO part, only the servo stuff isn't
Bottom of list: RSC-R2UW-3E8
Jymmm, that should work
SWPadnos: FSCK ME!!! $100 for a riser card?!
[18:15:20] <Jymmm> http://www.wiredzone.com/itemdesc.asp/ic/10017937/Supermicro/RSC-R2UU-UA3E8
if not, get one of these: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270419488595
I might get one of those Acer boxes instead
ok, 2 of those acer boxes
more like 24 :)
Just wipe out M4 and install linux
SWPadnos: I read the manual, the OS is installed on the 1st hdd. instead of embedded
wow. that PC was $44000 a month ago (with hard drives though)
they said that in the ad
I'm not paying $100 for a passive fscking riser card
what CPU do you have in the Tyan?
I dun know
Opteron 170 is what it says at boot
actually, you'd be better off paying $100 for a different motherboard - one that has two PCIe slots closer to slot 7
then get a simple riser (though the others may be relatively expensive too)
doesn't matter, STILL need a riser card to get the right angle
the case requires that
so it makes no difference what you do otherwise
but, you may be able ot improve performance and get a less expensive riser card at the same time
you could also just get one of the ones from rackmountmart, but not connect the second slot
if you need another RAID card, you get a motherboard that has a second PCIe in slot 5 or 6
I wonder if weird stuff might just have some pcie riser cards
could be, but I'd be surprised if they had the exact one you want :)
well, that's where I got it from, I suspect they just pulled it out
oh. could be
Well, i guess I know where I'm going to today....
[18:53:45] <alex_joni> http://cgi.ebay.com/HP-RACK-W-QTY-32-DL360-G3-DUAL-3-2GHZ-2-X-73GB_W0QQitemZ380139459713QQcmdZViewItemQQptZCOMP_EN_Servers?hash=item588213d481&_trksid=p3286.c0.m14&_trkparms=65:12|66:2|39:1|72:1234|293:1|294:50#ht_5256wt_905
good night all
* Jymmm sends alex_joni the electric bill
hmm, the motion hal component outputs rotations per minute for spindle-speed-out, but the stepgen component wants units per second, what's the best way to translate? put a scale component in between?
DaViruz are u using stepgen in velocity mode to generate spindle speed?
there is a short description at http://www.cnc4pc.com/Files/EMC2.txt
describing how to set up stepgen velocity, u just have to fiddle with the scaleing parms
ah yes its the same method i use to command my VFD via a pulse train output from stepgen in velocity mode, works very well
i don't want to set a funky scale in stepgen since i also want to use the feedback from stepgen to do rigid tapping
yep that makes sense, i have used 1Hz/rpm to control my VFD since it made life simpler from the scaleing perspective
and u presumably already have a spindle encoder with a/b/index outputs
in that case it should be fairly simple to configure
it sounds pretty close to the config i have running
so if u need any of my config files etc to look at I can put them on my www
however i'm not going to use the spindle encoder for feedback to emc2, the idea is to generate fake feedback in HAL (from the stepgen component)
will that work for rigid tapping?
i think so
the spindle motor is a servo, so it should be accurate to the step pulses
assuming the scale etc is equally accurate
ok but if the motor slows very slightly under load of a tap emc wont be able to correct the relative Z speed so would probably strip the thread / break the tap?
hm yeah possibly
not sure how accurate/fast the servo is
if u already have the encoder on the spindle its really worth the effort to configure and use it, it can be very handy for later things like closed loop spindle speed control etc
i suppose, but i will need additional io for that
should probably get a mesa 5i20 card
yes i'm using many parports currently, and plan to either get a 5i20 or 7i43, need to have another look really
yes i'm leaning towards that card i have to say!
i need to support 4 steppers + one velocity mode stepper and encoders / switches / pendant etc
a stepper won't slow down the way a servo does
it will either run at speed or it will stall
SWPadnos: If you liked Spanglish, you should like that one as well
never seen Spanglisn
SWPadnos: You have netflix?