EMC: 03bigjohnt 07TRUNK * 10emc2/docs/src/gcode/ (main.lyx tool_compensation.lyx): minor edits
EMC: 03bigjohnt 07TRUNK * 10emc2/docs/src/drivers/hostmot2.lyx: add info on dmesg printout
cradek_ is now known as cradek
EMC: 03bigjohnt 07TRUNK * 10emc2/docs/src/gcode/images/comp-path-1.png: add image
EMC: 03bigjohnt 07TRUNK * 10emc2/docs/src/gcode/tool_compensation.lyx: fix bug in documents
the image sucks but I'm out of time this morning :( so I'll work on it this evening
wonder if it was bigjohn who filed that one
* jepler wonders if BJT-Work is listening
huh. isn't the actual behavior the expected behavior?
* cradek waves
no, but he is reading
since there's no corner to prevent the tool from following the full path
no cradek it wasn't me
it was anon so I couldn't ask for clarifixation
ok, just curious
I think he just didn't get what he expected
I added a bit to the manual this morning to try and explain that
did you see it?
[14:14:19] <BJT-Work> http://www.linuxcnc.org/docview/devel/html//gcode_tool_compensation.html#sec:Cutter-Radius-Compensation
I like the picture
that endpoint can go almost anywhere depending on the next move
the image shows the last compensated segment following the complete programmed path, but I don't know how to point that out to someone who isn't looking for it
I'm going to work that image over to make it more to the point and not show the lead in move
what do you mean SWPadnos
the bug report showed that the user didn't know what they would be getting
the example code does one move, which is like the second segment in your diagram
the tool moves the same length as the programmed path, because there's no "next segment" to avoid gouging
(or at least it moves to a point which is offset perpendicularly from the endpoint of the programmed path)
in that case the tool moves to the endpoint where it would have been if it had been fully compensated all along (hard to explain)
but any way I try to explain that would likely be confusing to someone who doesn't already know what I'm talking about :)
yes perpendicular from the endpoint along the programmed path
which says nothing to most people :)
but really, the real problem is a program with only an entry move makes no sense - the endpoint is pretty much undefined
jepler pointed out that perhaps it should be an error case
that's why I did the graphic :)
cradek: that makes sense that a single move would be an error
does M2 cancel cutter comp?
by the filer expecting the endpoint to be X0.25 I can tell he meant to turn left 90 degrees after entry. any other turn would put X at a different place. The problem is he didn't tell emc he wanted to turn left 90 degrees by programming that path!
BJT-Work: would you fix that m2 section please - g92 is no longer unapplied at m2
oh wow -- I hadn't looked at bjt's cutter comp docs
I love the images
haven't been able to read the words yet, I'm fixated on them
sure thing cradek
you can tell which ones he's rewritten and which ones he hasn't (1.1.3)
"1. If G43 Hn is programmed, A USE_TOOL_LENGTH_OFFSET(length) function call is made (where length is the value of the tool length offset entry in the tool table whose index is n), tool_length_offset is reset in the machine settings model, and the value of current_z in the model is adjusted."
yeah blame me for the cut&paste job there, probably
"I don't know what all these words are, but I hear we should have documentation"
haha, it's terrible
anyway, just put some pictures on the same page and nobody'll notice the words
uh did you see the picture next to it?
I don't understand what it's trying to say either
I was saving that part for last :)
is the gcode in 22.214.171.124 right? I don't think those arcs under (Cut Profile) are valid and they can't make a square
holy crap where is my G1!
also in 126.96.36.199 it says G42 (Start Comp Left) but it's actually right
or is it a G3S for square
thanks for proof reading that
WEE! I just printed a 24" x 48" drawing on my plotter
I had to define a custom sheet size to print it 1 to 1
ah, definitely an odd size
yes, seems like I can print 24" wide (the width of the roll) and whatever long!
we tape the print to the part and transfer all the holes :)
makes it real easy
SWPadnos: how about one of these: http://www.ramsan.com/images/products/20.jpg
SSD's with RAID5
[20:22:33] <alex_joni> http://www.ramsan.com/products/ramsan-20.htm
450GB of them :D
only 15W, but 18k$ :/
wonder how many stepgens we could fit in those FPGA's :D
much cheaper: http://www.popamericana.com/!/16k.jpg
more than needed for the number of GPIOs
Even if your present computer is not 4 MHz fast, this new Model 16KZ RAM equips you for the time when you'll need and want higher computer speed.
cradek: wow, cool.. where can I get one?
15W? A 500GB 2.5" hard drive has read/write power dissipation of just 2.50W. http://www.wdc.com/en/products/products.asp?driveid=506&language=en
jepler: yeah, but you need at least 4 for RAID5
and those probably can't do 80k IOPS
no, probably not
alex_joni: I've got a machine with (I think) 4 of them...
alex_joni: I don't see the point of RAID5 when the chips are not socketed
what do you do when one goes bad, copy the array to a fresh card, then throw the old one out?
jepler: you can probably turn them off once they stop working
well.. at 18k$ I'd suspect they would replace defective ones
pci hotplug should help with that
With 18k$ worth of 1TB hard drives you get a lot of bandwidth and a whole lell of a lot of storage. It'll use more than 15W, though.
you could allocate $15k to power usage over the lifetime of the array, and still have a lot of 1TB drives
oh, no wonder the commodore 64's serial sucked so badly: it's fully bit-banged
wow, and it did 2400 baud iirc
$ units 1MHz/2400Hz; units 3GHz/40kHz
so in those days you could do interrupt-driven bit-bang in 400-odd CPU cycles; now it takes 75000 of them
possibly a little more is going on meanwhile.
(for no easy-to-explain reason, I was reading a commodore 64 reference.. http://pastebin.ca/1359297
... for the highest baud rate, 2400
wonder why pastebin causes that bad pasting
I always forget to click raw
[20:52:03] <jepler> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180225281541
Are you tired of being limited to 1200 baud on most Commodore 64 and 128 solutions? I have personally used Novaterm at 57600 baud without a hitch on a stock C64!
"In April 2008, the first batch of 1541 Ultimates shipped, a project by the hobbyist VHDL-developer Gideon Zweijtzer. This is a cartridge that carries an Action Replay and Final Cartridge (whatever the user prefers) and a very compatible FPGA-emulated 1541 drive that is fed from a built-in SD-card slot (.d64, prg etc). The difference to other SD-based and .d64 mounting cartridges like the MMC64, Super Snapshot 2007 or MMC Replay is, that the 6502 t
haha, this is even nicer: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=120378686150
I had one of these! It was the greatest thing ever! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180270550072
I had a daisy wheel printer that made my homework look like it was carefully and perfectly typed, not printed on some ugly 9-pin printer
I always wondered abotu getting a line printer
but that would probably be too loud to have around
my parents would yell at me if I didn't close the door before printing something
it had sheet feed (!!) so sometimes I would start it and then leave the room :-)
Diablo 630, baby!
(never had one, but damn they were loud)
hey - I had a daisy wheel printer for the commodore :)
still, I doubt it's as loud as a line printer
CHUNK CHUNK CHUNK CHNK
some of those were friggin fast
[21:05:31] <alex_joni> http://www.youtube.com/watch?v=U16GNsRYGbA
faster than most modern laser printers actually
too bad there's no actual sound from the printing
we had gotten a bunch of line printers from the local tech college - we ran a few test pages thru them - yes - loud
(put them into test mode)
at least we have lpd now :D
lpr is nice too
with emphasis on the "r" part :)
wow. airfares are really cheap right now
I got an email about flights to Australia - $1000 per person (yes, that's round trip)
it you don't get "lost" on the way :P
I'll make sure there's a soccer ball on board, just in case ;)
Ingrid was shopping for flights to Europe. Tickets? $200 round-trip ... plus $300 in taxes
heh, yeah. they do get you that way
though the $1003 price is inclusive of all taxes/facility fees
(I usually search on the United site, since they always include all the fees in the proces they show)
good night all
had these in college: http://www.youtube.com/watch?v=HMbyhYSbMG0
it doesn't seem particularly fast. and I'm sure youtube isn't doing justice to the racket it made.