theorb is now known as theorbtwo
Any tips on how to change the size of spinboxes? Mine are coming out unnecessarily wide
I figured it out, just use a "<width></width>"
wow, I last updated emc on the lathe in '09
oh hai there
geo01005_home is now known as geo01005
geo01005_home is now known as geo01005
Has anyone here ever made their own machinable wax?
spasticteapot, i have natural wax, could i make it machinable? :)
I have no idea.
I'm told you can mix it with hdpe.
[06:19:26] <Jymmm> http://bbs.homeshopmachinist.net/archive/index.php/t-28017.html
LDPE, not HDPE
Melting temp of pariffin is around 160F (hot water), it looks like LDPE is around 230F, so it might be possible to melt just using boiling water.
parrafin wax melting point is 117°F to 147°F
I've taken old candles and used a double boiler very slowly raising the temp to melt, but it "mold" you'll have to be careful or you'll get pockets of air.
you'll have to very slowly LOWER the temperature
Jymmm, thanks, will try some day
dimas: tomorrow bitch!
get yourself a empty coffee can
glad you've not demanded it today or right now
* Jymmm kicks dimas in the machinable wax!
[07:09:21] <alex_chally> http://repraplogphase.blogspot.com/2010/06/nice-recipe-for-machineable-wax.html
looks like 4:1 paraffin:wax
i think I am going to make some up this weekend
I have a bunch of scrap hdpe in my garage
I'd wonder if it melts under machining, though.
* alex_chally will find out
Maybe HSS endmills and a water bath could be used?
spasticteapot, I don't think it is going to generate that much heat
Carbide and water is a bad mix, but then again...that's only if the carbide gets hot enough to cause problems.
the heat it does generate is going to just melt the wax, which will act as coolant
I saw a fellow use standard "blue wax" for making casting blanks for miniatures. The resulst were pretty impressive.
thus reducing the friction and heat until it cools down enough to start hardening
The point of the water bath is to keep it from melting. :)
Anyone here good with materials science?
I'm trying to figure out what I need for a project, and I'm a bit lost.
spasticteapot, I am an enthusiastic amature!
I want high tensile strength for making a nonresonant speaker enclosure, yes?
Also, if I add a filler - say, calcium carbonate - to a resin, will the tensile strength go up or down?
If so, by how much?
spasticteapot. iirc tensile strength scales as a result of hardness
and making something harder is not necessarily the best way to keep it from vibrating
Actually, glass is spectacularly nonresonant....if it's thick enough to push the resonant frequency above the highest frequency at which the transducer operates.
If I can get the fundamental resonant frequency of the enclosure above ~1.8khz, I'm set.
Actually, 1khz is probably enough.
spasticteapot: what application? PA, audiophile etc What power levels?
Audiophile, ~40W (direct to driver), 70hz-1.8khz.
boy, this brings me back to the 70's
L84Supper, u r old!
actually, i wonder what the average age of this channel is vs my normal haunts
<looking for my teeth>
L84Supper: So, any thoughts?
checking with my wayback machine .... it was easier to just tune the enclosure with ports
it would be interesting to try aerogel
[08:01:08] <L84Supper> http://stores.ebay.com/Asset-Exchange-Inc
these guys have 2 of these available
L84Supper, one for parts :D
srsly though, if you bought the two of them you would have at least one working one forevar
5 tons each, listed in Chicago but actually 200 mi away
they are both operational
I would love to see a good machine reseller's checklist of stuff they look at on a used machine..
most of these machines have great mechanical design, the controllers were so bad they didn't have a chance to wear out the rest of the machine
for $2500 what could come close? the worst case would be a new spindle or spindle motor unless the machine was left out in the rain for several years
hmm, would gypsum grind down dremel engraving tools fast? :/
gypsum or gypsum board?
well that i cast myself =)
as in the white stuff =)
it's pretty soft, sheetrockers use roto tolls to cut out openings, they cut like butter
or a knife through it :)
roto tolls ?
its very soft yes
so i thought it would be nice to mill in
but if its ebrasive it might grind down the edges pretty fast :P
hell they cost like $3 the bits so i guess i could just try :P
just don't add any aluminum oxide or boron nitride particles to your mix :)
hehe al oxide is quite hard :P
tho it might be good if it was realy realy dry ...
if i cast it will take hours to dry it out :(
need a piece of dry wall to test on :P
sheetrock installers walk around with those palm type roto-tools and cut out the electrical box openings by just moving it against the steel box covers opening, they change bits every few days mostly due to the contact with the steel covers
[09:26:14] <L84Supper> http://www.youtube.com/watch?v=yQ2StdMO4R8
SteveStallings is now known as steves_logging
darren is now known as redwizard-kde
hi is it posible to edit a line in axis without edternel editor opening and relod ?
thanks is there a clue to this it woudt be nice to mark a line maybe RightmouseBotton and a pop up with the line to edit appears
in manuel mode offcause
you can make file/edit run the editor of your choice - but that's the only way to edit
I'm not sure what is involved in implementing that feature. I think the file would have to be saved and "reloaded", since the interpreter is not part of AXIS
so 1 more quest is there anywhere a way to tell EMC a main Startup Sutch as "G17 G21 G90 G64P0.01" to use as default
in the ini file
RS274NGC_STARTUP_CODES I think
where do i find info in the Docu -> http://www.linuxcnc.org/docview/html/
got it http://www.linuxcnc.org/docview/html/
[13:04:53] <IchGuckLive> http://www.linuxcnc.org/docview/html//config_ini_config.html#sub:[RS274NGC]-section
This is not a substitute for specifying modal g-codes at the top of each ngc file, because the modal codes of machines differ, and may be changed by g-code interpreted earlier in the session.
correct. it's best to fully specify everything in each G-code file
as i understand this if i load a file ,start from N170 this ->RS274NGC_STARTUP_CODE is in use or not ?
the startup codes are executed once when emc2 starts, it is not per file load
but i can Do MDI befor i start at N170 this will be in use
i broke now 2 parts without the G64 P0.01 it roundet the corners
if i change the tooldiameter and start from this block section i need all the parameter in place
i think i will modify my Postprocessor to output the Full Startup code at every Toolchange Block
you should experiment with no cutter or workpiece. when you use "run from line", the entire program is interpreted up to that line, so some things will be as the program has specified and others will be as you left them (from MDI)
that is an excellent plan
ok thank you for your Help from Germany and have a nice Day
it is friday!
* skunkworks need to go make some gcoffee
mmmm - someone already made a pot...
yey cutting gypsum boards was real nice with dremel addon and a engraving bit =)
that must be messy
skunkworks, not at all =)
tho a suction thingie wouldnt be to bad :P
i need to build a vacuum pump ...
anyone got blueprints on stuff to mill ? :P
[15:08:26] <skunkworks> http://www.franksworkshop.com.au/EMC/comp/comp.htm
well - that sucks. (links are broken)
some interesting electronics projects on that there site
pjm__: how goes it?
not bad thanks, u?
hangin in there
i'm visiting the US next week
which should be nice trip
cool - what for?
a work 'conference'
* skunkworks still only has this video so far http://www.youtube.com/watch?v=4nuRea6615s
although its in Vegas
so it should be amusing
oh - fun
so i'm just scouring ebay seeing if people will post things to my hotel
I have only been there once. didn't really gamble much - saw red rock canyon and the grand canyon
ah yes i intend getting a heli trip to the GC
neat - the neighbor did that.
my machine is doing pretty well, its in 'production' mode now
all the electronics / etc are sort of finished
skunkworks: Got Panduit?
we are finally mounting the dc servos.
skunkworks: And the caption reads "Electrical Cabinet from hell" http://www.franksworkshop.com.au/CNC/GantryMill/Electrical.jpg
try the "hard hat tour" of Hoover Dam. That'll be at least as interesting as a GC helicopter tour (and a *lot* less expensive)
But this would be a lot more fun to visit... http://pussycatranch.com/
you never know
skunkworks i think after the next paying job on my machine i'll either finish the 4th axis or replace the XY leadscrews with something new, i.e. not off the scrap yard
SWPadnos ah yes the hoover dam tour is on the list also, its sposed to be an engineering marvel
yeah. the hard hat tour is a lot longer, and you go places the normal tour doesn't
(like the floor where the generator bodies are, a spillway control room, ventilation ducts, etc)
i wonder if they show u the cryogenic chamber where MegaTron was stored
no, that's top secret
ah yes of course
and an extra $20
Jymmm: doesn't look that bad... http://www.electronicsam.com/images/KandT/conversion/DSCF1184.JPG
skunkworks: How do you think it starts? =)
heh - well - that is all the i/o
and in 6months? 18 months?
is the arm going yet?
no. Have not had time to work on it.
I need to take a week off and spend on it.
dad is making the servo mounting plate that will hold the z and x servos as we speak. 3/4 plate.
there will be a machine warming party at skunkworks place circa 2012 :)
I am rather confident that it will be 2010
the servos are the last 'hardware' issue. Y will probably be the easiest.
can't wait to see it move. The tachs on all the servos seem in great shape - so we will be using the amps in velocity mode. should make turning a bit easier
cradek: did you get any further on the stirling engine?
skunkworks: yes - I still need to make cylinders/pistons/flywheel
Fox_M|afk is now known as Fox_Muldr
is anyone working on an emc configuration gui?
there is one called stepconfig.
I was thinking of something universal
[17:06:45] <skunkworks> http://linuxcnc.org/docs/2.4/html/config_stepconf.html
and for mesa http://linuxcnc.org/docs/2.4/html/config_pncconf.html
no stepconf only does stepper motors
then - no. :)
I need some help if anyone knows about configuration
I will tidy up the code I have done and release it so
do you know if anyone has drivena fdm/reprap style machine with emc2?
yes there is a load of reprap drivers
ah i must try the mesa gui, sounds interesting
I should think you will find it with google
where is the mesa gui?
i dont see a mesa gui in the source tree?
pncconf is the mesagui
if you have 2.4 just type that in a terminal window
[17:18:35] <skunkworks> http://objects.reprap.org/wiki/EMCRepStrap
[17:19:40] <jthornton> http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,showcat/catid,39/lang,english/
I have started creating something like pncconf
but i was thinking much more configurable
here's a nice machine:
CNC-Table-Boring Mill . Manufacture CASTEL (FPT) . Type RED 1 T
Control Manufacture HEIDENHAIN . Type TNC 155
Spindle diameter 130 mm
Travels: X-axis 3200 mm / Y-axis 2000 mm / Z-axis 1500 mm
Table size ca. 1800 mm x 1250 mm / Table control 360.000 ° degree
[17:22:31] <alex_joni> http://www.maschinen-kistner.de/galerie/Fraes_CastelRED1T/GalerieFrame.htm
i have an error in pncconfig
AttributeError: 'module' object has no attribute 'is_sim'
is it true that genserkins could be used to create kinematics equivalent to all the other kinematics definitions in emc?
if you don't have a mesa card - I assume it won't work.
i unchecked the mesa option and checked the parallel port option instead
is my supposition about genserkins correct?
[17:28:58] <skunkworks> http://www.electronicsam.com/images/KandT/conversion/servo/mount1.JPG
[17:29:10] <skunkworks> http://www.electronicsam.com/images/KandT/conversion/servo/mount2.JPG
[17:29:19] <skunkworks> http://www.electronicsam.com/images/KandT/conversion/servo/mount3.JPG
skunkworks, please tell me those servos really are ~2.5ft long and 8" in diameter
and it is not some trick of the angle
they are rather large - yes
moopy, I don't think so. I believe genserkins assumes that each successive joint is rotated about the previous one ins ome way
which is clearly not the case for a knee mill
hehe, the gypsum left my little engraving mill half sized when i was done :P
i guess its kinda ebrasive anyways ;P
... in some ...
skunkworks, whats the rating on those?
mrsun__, didja get that dremmel mount fixed?
alex_chally, took me 5mins :P
lulz, 125 is the max speed
tab complete fail
a piece of mdf two holes and voila =)
it comes out to 1200 rpm
skunkworks, what kind of a gear ratio is that
or there abouts
skunkworks, thanks for READING MY MIND
heh - that will give us about 200ipm rapids
but i burned the bit the first thing i did :P
kinda cut a bit deep ...
the bit was black when it came up from the material ;P
skunkworks, is this on that mill with the tool chain that was about as big as a gen1 xbox controller
i wanna play with some big machines :(
although we are getting two MORE new haas's in the shop in a couple weeks
thats 4 new machines this year at the school
yay for grant money
fuck knows where we are going to put it though
alex_chally: How big they shoudt be ? B)
Those servos get coupled into this http://www.electronicsam.com/images/KandT/conversion/xaxis/3shafts.JPG
skunkworks, I have been making the motor mount/bearing block for my mill, and seeing yours I feel so... tiny
(we still have to figure out what we are going to use that will drive B - but that can be phase II ;)
a lot of factories in the USA are selling there minimill1 to get the VF2 for at least 35kDollars
like this? http://www.electronicsam.com/images/KandT/conversion/xaxis/ballscrew.JPG
skunkworks, 3" od?
i saw last week inimill for 2,5K$
skunkworks, small one :P
I think so. (don't really remember - 3 turns per inch)
are there any example configs showing genserkins using linear motion?????
serialkins is for rotating stacked axis.
32mm thick ... wtf :/
16mm thats better =)
16mm with 5mm pitch ... wasnt so expensive
the damn ballnuts are tho /:
it will do the transforms to give you xyzabc motions...
and they are not premachined
has anyone here made a Z axis quill feed setup for a bridgeport style mill?
after I finish these bearing blocks and then my X axis ballnut holder I need to start on that...
no serial kins is for serial stacked motion, the motion can be either linear or rotary
[17:46:05] <moooop> http://groups.google.com/group/openmanufacturing/browse_thread/thread/96c0c4ba59895d3f
maybe i am misunderstanding genserkins though, i am really too much of a newbie to have any authority
but seems the genserkins does not define a theta angle?
alex_chally: how many axis woudt you like to use on Trump Mill Model 3VHG
IchGuckLive, I am having trouble parsing what you just said
there are more then 3 axis
IchGuckLive, this is the machine I am converting
[17:50:51] <alex_chally> http://farm3.static.flickr.com/2796/4263848415_3dc3d15ca7_b.jpg
only 3 axis
if I wanna do more I am going to make a trunion table
alex_chally: I am sure cnczone has examples of what others have done for z
alex_chally: thasts then a normel 4axis
skunkworks, I was hoping someone had some drawings I can look at
mostly just so I don't re-invent the wheel
if you go for another B axis it woudt be perfect 5-axis
with less work to do
[17:54:21] <alex_chally> http://www.cnczone.com/forums/attachment.php?attachmentid=19412&d=1151711731
I have never seen parts on all 4 sides of a trunion like that
alex_chally: thats my VF2 mill from HAAS
with the 4th Axis mounted
IchGuckLive, as in, that is your picture? or you have the same mill?
[17:57:20] <IchGuckLive> http://www.katzenmeier-gmbh.de/unternehmen/showroom.shtml
[17:58:20] <skunkworks> http://cnczone.com/forums/showpost.php?p=730194&postcount=7
skunkworks: this is for the pinmole to drill a nice feture
dident the table move up and down ? or is it to heavy to get it move
IchGuckLive: if I where to do one - I think I would raise and lower the table....
skunkworks: agree with a gear between the motor and the table
IchGuckLive, the table is quite heavy
also, a ballscrew for the knee is $$$$s where as one for the quil is cheap
skunkworks, actually servo size is not the issue in this case
a have 1hp servos, plenty to drive the knee with a 2:1 reduction
but I just really don't like the idea of shifting all that weight around for no good reason
get a meter for 20Dolars to Rent at the local dealer and messure the force that is needet
25in7lbs are what 3Nm
that makes you 150dollar and its done
all that weight will insure the preciseness
on these mashines often the Nut is of Bronze so you can get a new one at it is as good as new
if the machine did not fall of a truck the lead screws will hold forever
do I want fast blow or slow blow fuses for between the drivers and the PSU and then from the PSU to the wall?
thats what the translator gave me for it ->sluggish
[18:17:53] <IchGuckLive> http://translate.google.de/?hl=de&tab=wT#de|en|tr%C3%A4ge%0A
18 more words on these !
im off for today
Is G41 supposed to disable a G64 P## setting?
madsci44: no, why?
because it seems on my machine it does
with G41 active it behaves exactly as if m64P0,
running trivkins emc2.4.1
pastebin.com example gcode, I'll try check it
ill have to reconnect it to the lan
but basically its an XYZ gantry in inches, at the beginning of the program there is a G17G64P0.010 and before each feed there is a G41, without the G41 M64P# works fine, but when I include the G41 before the feed path, It behaves as if M64P0.0 The radius comp works fine otherwise and behaves properly
are you generally cutting outside or inside a feature?
I ask because having cutter comp on will give you a path that uses arcs to go around corners. because of the extra arc, they will not get cut as short as the sharp corner you programmed manually
Both - I just reverse the path direction to choose and always use G41
inside corners I'd expect to get rounded off by about the same amount whether using g41 or not
Its plasma I'm using it as kerf width compensation
outside corners will not get rounded off as much, maybe not at all
yeah I understand that
do you still have another question then?
wait maybe i dont - will it get rounded more than just the tool diameter?
I don't understand that question - which case are you talking about?
actually i reread your comment it makes perfect sense
but my problem isnt with G41 behavior - it is that G41 behavior seems to disable the effect of G64 behavior
yay, sometimes I get lucky and say what I mean :-)
hah sometimes I only have to read everything twice :)
no, my suggestion is that changing the path to contain arcs at the corners is what causes less diversion from the path
if you'd make a path like that manually, and not use G41, I suspect you'd see the same thing
path has pointy corners made of lines (can be easily rounded by G64P) -> you use G41 -> G41 makes arcs for you -> path no longer has pointy corners made of lines -> G64P has less effect because of the arcs
My path is made of short straight line segments approximating arcs, as long as I have a loose enough tolerance factor the velocity is maintained adequately, but if I have a tolernace factor of zero, it slows down WAY too much
I solved that for the time being with the M64 and that works great - but when G41 is active, it behaves exactly as if M64P000 and I am back to the reduced velocity issue
you said you're using 2.4?
is it because there is a g41 at each move?
I think 2.4 is supposed to do naive cam detection for arcs like that - please do get us some sample gcode to try
no, one at the beginning of a feed sequence of moves, and g40 ffor traverse to next start
(fwiw I think it's an error to turn on comp when it's already on)
madsci44: is your active coordinate system rotated?
I expected it should have maintained the tolerance setting with comp turned on
I'll double check a simple example and get the code pasted for you guys to check out
I'm looking for aluminum sheet that's thin as you might find on roof edges or duct work or thinner. Would that still be called sheet? plate? foil?
or if you're asking a roofing guy, it's called flashing
yeah that's the word I couldn't remember =)
in german, all metal with a cuboid form is called 'blech'. it really doesnt matter if its only 0.5mm or 120mm thick :)
when using a translator to english, it tells me a sheet is thinner than 5mm, a plate thicker.
[19:36:46] <fragalot> http://www.vectric.com/WebSite/Vectric/vcp/vcp_index.htm
Hello all. I'm trying to display a number on pyvcp that is one signal (s32) minus another signal (also s32)
is there an easy way to do this in HAL? I've considered doing it via classic ladder, but that's seem unnecessarily complex
[19:40:55] <mrsun__> http://www.youtube.com/watch?v=2WJVHtF8GwI&feature=related
thats how my brain feels today :
for the reference, I was wondering which one of those 2 I should get for simple engraving use :P
seems to be much less hassle than truetype trace -> dxf etc
fragalot: I own VCP and are quite happe with it
if has a lot of really nice features.
lepton: all we have is sum2, which works on floats. I think ladder is the only way to do it without writing a new comp.
I was afraid of that
cpresser: aye it looks awesome. I'm just wondering wether I could 'do' with just cut2d.. I kinda miss the V-carve function of vcarve pro though for text
lepton: one difficulty of writing this comp is if you add two s32, the result might not fit in an s32
I'm not sure how you'd want to handle that case
Fortunatelly I already have a bunch of things to do in classic ladder today, so I can slip that in
Indeed! I could turn them into floats
yes, if you use conv_s32_float to convert them first, you could add them with sum2
I need to subtract them, though
Could I multiply by a negative one, easily?
yes sum2 has float gains for each input
gain0 = 1.0, gain1 = -1.0, out = in0 - in1
Nice, so that's an easy path to do what I need
I don't have much attachment to being in s32, that's just what it already is
skunkworks: genserkins can support liner joints aswell
I'm making a gauge for the difference between the encoder counts of the two motors that drive my gantry
it's just a matter of config that's not fully done, but it should work
I implemented a fairly simple version of it already (two meters, no subtraction), and it's already very interesting to watch how the machine behaves in different conditions
lepton: ah, interesting. kind of like a differential following error.
do you have separate pids but tuned the same?
alex_joni: interesting. Cool
cradek: It's a stepper system (but it involved encoder feedback and closed loop control of current through the windings, controlled by the stepper drivers, not EMC)
It's been discussed in here a few times over the past week, if you weren't around for that
But yeah, I'm making a differential following error in effect
Example with tolerance and no radcomp; http://pastebin.com/4GFsmDik
identical except with tolerance AND radomp; http://pastebin.com/BFNsGaRP
ugh idonno why the got doublespaced.
Using conv_s32_float and sum2 worked out really well for what I was trying to do :)
madsci44: what diameter on tool 1?
i have also tried other values
i think up to 0.1
you don't know how tickled I am to see cutter comp work on such a crazy complicated path
hah im sorry i just made a squiggly line to start to show where it was most prominent, then added the angular thing where it might be easier to see variations in the path
F180 is in inches?
where the segment density is high - i suppose depending on your acceleration settings - there is a very noticeable difference in velocity
I have to speed up my sim config a lot then!
what's your maxvel and maxaccel on xy?
maxvel on x and Y are both 4.8 , acceleration on X is 18.5, on Y is 21.0
huh, I get almost identical velocities and total execution time
[21:53:02] <cradek> http://timeguy.com/cradek-files/emc/tolcomp.ngc
[21:53:37] <cradek> http://timeguy.com/cradek-files/emc/comp.png
[21:53:37] <cradek> http://timeguy.com/cradek-files/emc/nocomp.png
that's running tolcomp.ngc with and without block delete
my machine is running on stepgen, and trivkins - could that be part of it?
I'm running v2.4_branch which is just like 2.4.2 + a few things that are irrelevant to this
sim is trivkins, and I don't see how stepgen would be relevant
maybe try my program with and without block delete, and make the same plots?
[21:58:52] <cradek> http://timeguy.com/cradek-files/emc/tolerance-mode-working.png
you can see very clearly here that tolerance mode is working with and without comp
the two red lines are backplots from running that same program with and without block delete (/G41)
ries_ is now known as ries
I notice your two programs have small differences on most or all lines - that's why I ran the same one for with and without comp
too hungry to test more - bbl
hello :-) -- I am trying to build EMC 2.4.1 on Ubuntu 10.04, just for simulator... and I get this error while on "make": ln: a criar ligação simbólica `../lib/libemcini.so': Operação não permitida
it says operation not permited while trying to make that link...
yes with the block delete im getting no difference at all in velocity either
i am loosing my mind?
im going to work on it till i can see it in halscope
madsci44, in that electrical drawing you sent me, were those fuses fast blow?
hm id have to think about that - its possible the startup surge might blow fastblow ones
i would try fastblow first tho
if its fastblow you have to have it rated at your max acceptible surge current, slow blow you should rate it at your normal operating current
(i mean above acceptable max in each case)
how many watts/volts was that supply again?
alex_chally; what was the input volts and power rating of that supply?
Bah where's skunky
the block delete has no effect
i tried via commenting out only the G41 line and it showed the effect
uploading halscope images now
Fox_Muldr is now known as Fox_M|afk
, - example 1 nocomp
[23:15:32] <madsci44> http://imagebin.ca/view/OCoPfj.html
example 2 with comp
[23:16:23] <madsci44> http://imagebin.ca/view/YTOfJsO.html
from your paste, without comp- via commenting G41 as (G41)
[23:17:07] <madsci44> http://imagebin.ca/view/lMdwVg.html
from your paste, with comp - via uncommenting G41
Can anyone think where I might find a 2" OD x 2" long really very stiff spring. (On a saturday)
I don't know where you would find one in a car. A section of a motorcycle fork spring might work.
What are you using it for?
It's a retraction spring for a pneumatic cylinder
Is anyone here familiar with laser cutters?
I'm curious if some of those 1W+ laser diodes could be used to cut through very thin materials.
E.G. very thin plywood, balsa, CF, etc.
Would a 1W router cutter do the job?
If you had an infinitely thin bit.
I'm not sure what can be done with lenses, etc.
Hence my asking. :)
didnt some of the older vehicles used to have big springs for the hood?
You cant't focus to less than a wavelength. (and the practical limit ti spot size is a lot bigger)
is a garage door torsion spring too big around?
andypugh: I'll take that as a "No" then.
madsci44: I can't explain the differences we are seeing
I still wonder how much energy could be pulled out of one of those with c02 cooling or the like.
I have thought about the garage door spring, but it is fairly useful where it is :-)
I mean a different one, actually
I think they are quite expensive. The alternative is to switch to vacuum to retract.
I rather suspect that the space I have left is too small, really.
did you try via commenting?
There is a shop within walking distance of my house that should have these in stock: http://www.cromwell.co.uk/static/publication/778/pages/1222.pdf
But none of them fit.
I should have planned further ahead..
perhaps i should try another exampe
madsci44: please do exactly the same test I did - use my gcode - run it once with block delete on - turn off block delete - run again
let me make sure i understand block delete because I have never used it - preceeding a block with a forward slash - the block is ignored/deleted? such as "G41" is effective and /G41 is not
yes it means "just skip over lines starting with /"
ok thats what i did - in that case the result was the same both times at first i accidentally ran the same file in both cases then did with teh block delete and had no differences still - ill try again to make sure
maybe take the same pic of the backplot I did, after you do the two runs
difference must be: something you are doing - something about your config - something about emc version
yes im kind of getting paranoid now i would HATE to have wasted anyones time
i just realized something - my version says 2.5.0~pre - i forgot all about that - this one was from a git pull a couple weeks ago
This is what I need, I wonder how feasible it would be to make one? http://www.smalley.com/wave_springs/about_springs.asp
ill switch it to 2.4.1
that'll fix it
I totally forgot I changed it