On Mon, 21 Mar 2022 at 16:03, dave engvall wrote:
> In line with the nebel prize: the machine should be a very light grey
> and your hand should pass thru it easily. ;-) Nebel = fog.
Indeed. The Germans don't call it "mist" :-)
--
atp
"A motorcycle is a bicycle with a pandemonium attachment
On Mon, 21 Mar 2022 at 12:23, Sam Sokolik wrote:
>
> Dad ground the ball screw nut.
Inventive :-)
I have used the RSH style a couple of times now.
http://www.gtenballscrew.com.tw/Page/Product/ProductDetail.aspx?ProductCategoryNo=123=15
Odd that the 16mm is smaller than the 12mm, but that might
On Mon, 21 Mar 2022 at 13:53, Leonardo Marsaglia wrote:
>
> Sam, have you had to soften the final portion of the ballscrew to machine
> that thread? I've never done it and the ones I'm mounting in the router are
> fixed (rotating nut).
I have machined a number of ballscrews. Typically I peel of
On Fri, 18 Mar 2022 at 03:11, Sam Sokolik wrote:
>
> https://www.youtube.com/watch?v=mes7pFZ90Fg
If you fitted linear scales you could potentially have manual rapids
by disengaging the half-nuts.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial
On Thu, 17 Mar 2022 at 16:34, Peter Hodgson wrote:
> I will shortly be attempting an LCNC retrofit on an Emco 320 and was
> wondering how I was going to manage the toolchanger. I think this will really
> help.
I think that the Emco toolchanger was already supported, actually.
It's an index
n out signed current-position "This pin indicates the current
position feedback";
pin out float motor_vel "The duty-cycle or velocity to drive a DC
motor or stepgen";
param r signed state = 0 "Current component state";
param r bithoming = 0 "Shows that ho
On Sat, 12 Mar 2022 at 03:44, gene heskett wrote:
> The max radius the corners of that stick, as its turned, ought to be some
> figure plus the 26 starting point when the square has been turned 45
> degrees,
The diagonal of a square is just sqrt(2) x the edge. (this follows
from Pythagoras, but
On Thu, 10 Mar 2022 at 13:00, gene heskett wrote:
> But neither of the $23 sensors I bought, actually works. black to -, red
> to 5v, green to dvm on my test table, one rests at nominally 1 millivolt,
> the other at around 27 millivolts which doesn't change with the applied
> pressure.
What are
On Tue, 8 Mar 2022 at 22:43, Leonardo Marsaglia wrote:
> I'm installing the buster ISO with LinuxCNC on it on a new machine (this is
> for the router) and after the grub menu I get some loading messages and
> then a black screen with a blinking cursor.
I think I heard that waiting a long time
On Tue, 8 Mar 2022 at 14:31, Thaddeus Waldner wrote:
> Now I need to get this signal into LinuxCNC. I think the MESA THCAD device
> would work, though it’s a bit overkill. Does MESA have other 1 or 2-channel
> A-D options, perhaps without the high voltage protection?
Many of the Mesa boards
On Mon, 7 Mar 2022 at 17:47, Thaddeus Waldner wrote:
> Does anyone here know of some brands/ models to check out?
I don't know if my reply got through. Look at micro-epsilon.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical
> On 7 Mar 2022, at 17:47, Thaddeus Waldner wrote:
>
> I’m looking for a laser distance sensor with about 1-3 thousandths resolution
> and about a 5-10” working range.
> I wouldn’t mind buying a used unit.
I think that some replies are being overly pessimistic
On Mon, 7 Mar 2022 at 02:08, gene heskett wrote:
> The thread is not a tapered thread, measureing 12.95mm in the threads
> major diameter, and quite close to 1mm pitch, maybe .98mm?
If the measurements are correct then it is not BSP either.
https://en.wikipedia.org/wiki/British_Standard_Pipe
On Sun, 6 Mar 2022 at 22:31, Ralph Stirling
wrote:
> plain parallel port stepper control. I'm setting up the
> spindle as step/dir, since he doesn't have analog output.
> He especially wants to be able to do rigid tapping.
>
> I believe I can use the stepgen counts or position-fb
> in place of
On Sun, 6 Mar 2022 at 19:22, Robin Szemeti via Emc-users
wrote:
>
> Have you succesfully got the USB3 adapter to work with the Pi? If so, what
> make/model is it,
Do you want USB to ethernet or USB to unspecified network? I have
several USB - Wifi things that work, but I am not sure that I have
On Wed, 2 Mar 2022 at 08:27, gene heskett wrote:
> So, can I start at y=0 b=0 and run to y=457.2 b=20574 in one gcode move?
Yes.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George
On Tue, 1 Mar 2022 at 22:59, Peter Hodgson wrote:
> The problem is that the spindle, run via a VFD needs to turn at only 50
> RPM to be able to have enough velocity on the Z stepper to achieve the
> correct pitch and the spindle doesn't seem to be stable enough or have
> enough torque at those
On Mon, 28 Feb 2022 at 21:44, Ed wrote:
>
> Title says most of it. For most commands I use the keyboard for the
> speed but changing the tooltable and a couple of other things I like to
> use a touchpad.
I use a touchscreen, and then in a holster in the side of the machine
I have an older
On Tue, 1 Mar 2022 at 16:25, Peter C. Wallace wrote:
> Not with firmware but you could replace the low side resistor network on the
> first 4 inputs with say 22K (was 1.8K) to get about a 5V full scale range
Or, less intrusively, boost the signal with an Op-Amp powered from the
field power?
--
> On 26 Feb 2022, at 04:36, Thaddeus Waldner wrote:
>
> Anything else I can try?
How about a Python HAL component that logs encoder position (on a HAL pin) to
file when a trigger pin goes high?
As it would be a user space component you would need a “handshake” in the
G-code. Ie a log /
On Mon, 28 Feb 2022 at 10:51, andrew beck wrote:
>
> I want to issue a m102
>
> And get this code run
>
> S5m3
> Halcmd setp hm2 7i77etc pin output on
This is slightly tricky, as you want to both issue a G-code command
and a Halcmd command.
I think you need to do a G-code remap to create a new
On Fri, 25 Feb 2022 at 15:19, gene heskett wrote:
> Out of the alphabet of ABCUVW, which is the proper axis to call it?
If it is a rotary axis with an axis along Y then it is typically called "B".
> And, does this change the kinematics module which is trivkins now?
Probably not. It sounds
On Fri, 25 Feb 2022 at 05:12, Ralph Stirling
wrote:
>
> You don't need a joint at all. You can just have an encoder
> channel that doesn't connect to any joint.
True, though there is something to be said for having a dummy axis
just so that the LinuxCNC GUI will display the encoder position.
On Thu, 24 Feb 2022 at 17:44, Thaddeus Waldner wrote:
> Can anyone point me to a working example of this, or maybe point out what I
> need to do with homing?
Set HOME_SEARCH_VELOCITY to zero and it will home to zero wherever it
is (ie, without attempting to move)
You also need to add a
On Thu, 24 Feb 2022 at 01:42, Ralph Stirling
wrote:
>
> If you wanted totally automated, you could use linuxcncrsh.
I don't think that linuxcncrsh is appropriate here, that is for remote
connection. I would plan on running the controlling script on the
actual controller PC.
It looks like what I
On Wed, 23 Feb 2022 at 17:58, mar...@r-bechtold.de wrote:
>
> in the past I programmed single letters as gcode.
Yes, I have done the same thing for numbers to engrave scale rings.
This time I am using F-engrave and a cxf font that I created
specifically for the job at hand.
(CXF is easy, just
On Wed, 23 Feb 2022 at 16:36, Ralph Stirling
wrote:
>
> Are you going to engrave one part at a time
One at a time. Each has a specific front and back (name on the front,
nickname on the back) so it's important to ensure they match.
--
atp
"A motorcycle is a bicycle with a pandemonium
So, have a spreadsheet of words to be engraved on several dozen
identical parts.
I am pretty sure that I can write a Python script to convert the words
to G-code using F-engrave in batch mode (I have done it from the CL,
so Python parsing CSV would just be a layer on top of that).
But what's
On Wed, 23 Feb 2022 at 04:46, Ralph Stirling
wrote:
> The sserial i/o has some limitations
> on speed and is best suited to pendants and coolant or tool changer
> type use.
I don't think that this is true. I have been using sserial-connected
servo drives for 10 years or more. (8i20)
Have you
On Tue, 22 Feb 2022 at 18:01, Chris Albertson wrote:
> That is the big advantage of open source. But the problem is running it on
> an antique computer using a modified OS
I have rarely run LinuxCNC on an antique computer. Most of my
installations have been on brand-new hardware.
Although the
On Mon, 21 Feb 2022 at 19:09, John Dammeyer wrote:
> My wired pendant like the one in the video works great. But I'm not sure how
> that's relevant to my question with respect to someone wanting 4 rotary axis
> that currently doesn't exist in MACH4
I don't think it matters all that much if
On Mon, 21 Feb 2022 at 17:33, gene heskett wrote:
> G76 isn't terrible handy for a buttress thread being carved on a hard
> maple stick 20" long for a woodworking vise, turned by a B axis, with the
> 24k rev spindle doing the carving while y is being advanced by the pitch
> per rev.
OK, in that
On Sun, 13 Feb 2022 at 16:58, gene heskett wrote:
> Does anyone else have a better idea?
For a simple thread? I would just hand-code a G76.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
—
On Sat, 12 Feb 2022 at 00:07, Andy Howell wrote:
> Its no pretty. Jitter is about 8. I had a look through bios
> settings, but nothing jumped out at me.
>
> Any ideas to improve it?
Which realtime system did you use? (at a guess, preempt-rt?)
Are you planning to use the parallel port? If
On Thu, 10 Feb 2022 at 03:04, andrew beck wrote:
>
> Its just kinda hard to ship to New Zealand from UK.
> Anyone got a oceania source or asia
Mini-itx is just a motherboard standard.
mini-itx.com just happens to be a UK supplier. I often suggest using
their board finder, but then you can
On Wed, 9 Feb 2022 at 19:30, dave engvall wrote:
>
> Hi,
> It would appear that the 'easy' way to compare the two methods would be
> to use sim or usrspace. That would get it plotted but I doubt the
> differences, unless gross, would be easily detectable on a plot.
Thde docs state that a 7%
On Tue, 8 Feb 2022 at 20:05, andrew beck wrote:
> Does anyone know how to set up the spinx1 cards I have a spare here. What
> card Do I connect it up to?
You can connect it to anything that outputs PWM. Including the
parallel port (I think, it might not be very good at P-port PWM
frequencies)
On Wed, 9 Feb 2022 at 15:01, Leonardo Marsaglia wrote:
> I double checked my spindle.0.revs and went up to 1 for a full revolution
> and then resets to 0 to start over again. (positive values for clockwise
> rotation).
It sounds like something is resetting the spindle-index-enable bit for you.
On Tue, 8 Feb 2022 at 02:57, Andy Howell wrote:
> Maybe I'll set it up so when LinuxCNC
> starts, the tool table gets initialized with with just tool and pocket
> numbers.
...
> The init.ngc file does:
...
>G10 L2 P2 X0.484313 Y1.739985 ( Set jig offsets in G55 )
You can add
G10 L1 P1 X0
On Tue, 8 Feb 2022 at 00:30, Andy Howell wrote:
> What I still don't understand is how it got set. We don't use the tool
> table. We manually touching off the Z.
It's easy to touch-off the wrong dimension. Perhaps someone, at some
point, jogged in Y just before touching-off. That sets Y as
On Mon, 7 Feb 2022 at 17:55, Andy Howell wrote:
> I issued a G91.1 in the MDI as well. I also deleted moved emc.var to
> make sure it wasn't picking anything up from there. There was nothing
> suspicious in there though. I don't think there are any other files that
> its stores state in, is
On Mon, 7 Feb 2022 at 10:10, andy pugh wrote:
> Have you accidentally switched between G90.1 and G91.1 ?
Forget that, I see that you have an explicit G91.1 in the code.
I suspect that you have accidentally introduced a Y _tool_ offset
during touch-off, touching off the tool rather t
On Mon, 7 Feb 2022 at 05:12, Andy Howell wrote:
>
> We had been cutting with the same gcode when suddenly it came up with an
> error:
>
> Radius to end of are differs from radius to start:
Have you accidentally switched between G90.1 and G91.1 ?
--
atp
"A motorcycle is a bicycle with a
On Sat, 5 Feb 2022 at 20:24, Nicklas SB Karlsson wrote:
>
> Anybody know about a method to execute a MDI command with g-code then on
> a hal pin flank?
What is the MDI_COMMAND?
I think that if it is pure G-code then it can be an OCALL
and you can use that same format in your G-code.
On Sat, 5 Feb 2022 at 12:34, Stuart Stevenson wrote:
>
> Guys,
> Causing me to 'think' this early hurts my head but I need to express this
> thought. It may be totally crazy but is there a way to 'double wind' a
> motor to cancel/use the back emf?
Yes, absolutely.
Unfortunately this also cancels
On Thu, 3 Feb 2022 at 15:28, dave engvall wrote:
> At first glance it looks pretty good but lacks pci slots unless my eyes
> have fully given out.
> Ditto on disk interface.
Assuming you mean https://www.onlogic.com/pd14ri/
It has 2 x SATA connectors and 1 x PCIe (so a Mesa 6i25 would fit)
--
On Thu, 3 Feb 2022 at 02:11, Chris Albertson wrote:
>
> I followed that link.Wow, that is a good deal. Especially when you
> look at the power supply. It uses a 12 volt barrel jack and a large size
> wall-wort. The CPU burns all of 6 Watts.It could run on battery power.
If I was
On Wed, 2 Feb 2022 at 21:45, Andy Howell wrote:
> Any suggestions for a 64bit mini-itx motherboard?
Where are you?
Try the board finder here:
https://www.mini-itx.com/store/category?type=motherboard
The left hand column lets you filter for p-port or p-port header at the bottom.
Don't select
On Wed, 2 Feb 2022 at 14:22, Thaddeus Waldner wrote:
> Here is a short video that illustrates the problem.
> https://youtu.be/DdYYpdC51Vs
Admittedly I watched it with the sound off, but the P=100 looks "softer".
Maybe try going back to P=1000 but drop the axis, joint and stepgen
maxaccel down
On Wed, 2 Feb 2022 at 05:38, Andy Howell wrote:
> I maintain a gantry style CNC router for our high school robotics team.
> Tonight our hard disk died. I need to decide what version to install.
> From reading the list, it looks like 2.9 is close to release. My
> preference would be to go with
On Wed, 2 Feb 2022 at 07:44, Thaddeus Waldner wrote:
> 2) why is servo thread jitter even making into the stepper pulse train with a
> Mesa Ethernet card and no communication errors? Do I have anything
> misconfigured?
The idea of using a PID is that it compensates for the fact that the
servo
On Fri, 28 Jan 2022 at 19:20, Chris Albertson wrote:
> I was thinking of using the Ethernet interface Mesa board but then read it
> needs a dedicated Ethernet port in the host PC. This means buying,
> installing, and configuring an Ethernet card. The PC or any PC today
> already has half a
On Fri, 28 Jan 2022 at 18:18, dave engvall wrote:
> I'm looking for users that are actually using a motherboard with a 7i43
> and can recommend candidate boards from experience. Thanks in advance.
I used one for a while with an old Xeon server board, and have one on
my Core i5 test machine.
I
In the debug output I see:
HAL: ERROR: duplicate variable 'pyvcp.spindle-speed'
But don't see that in any of the HAL files that you have supplied.
Do you have a .axisrc file? I see some vaguely unfamiliar output after
Axis loads too.
--
atp
"A motorcycle is a bicycle with a pandemonium
On Thu, 27 Jan 2022 at 21:42, John Figie wrote:
> hm2: Firmware contains unknown function (gtag-7)
GTAG 7 is SPI:
https://github.com/LinuxCNC/linuxcnc/blob/master/src/hal/drivers/mesa-hostmot2/hostmot2.h#L94
Do you need SPI?
--
atp
"A motorcycle is a bicycle with a pandemonium attachment
On Thu, 27 Jan 2022 at 16:24, dave engvall wrote:
> I use the mini 5/8" fits the SEM servo motors I use.
The problem with trantorque comes if you want a very small motor pulley.
What I have done in that situation when there is a thread in the end
of the motor shaft, (in addition to the
On Wed, 26 Jan 2022 at 18:26, Valerio Bellizzomi wrote:
>
> , I
> would need an ISO for master branch, how do I get it if it is
> available?
There isn't an ISO for master, as it hasn't been released.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the
On Thu, 27 Jan 2022 at 13:45, Valerio Bellizzomi wrote:
> the binaries ready to install, thank you Andy.
Go to store.mesanet.com, find your card then click the "Specification"
tab. For some opaque reason this is where the firmware download link
is.
--
atp
"A motorcycle is a bicycle with a
On Thu, 27 Jan 2022 at 11:06, Valerio Bellizzomi wrote:
> Can you give me the URL for the hostmot firmware too?
Do you want the binaries or the (very out of date) version of the
source hosted by LinuxCNC?
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the
On Thu, 27 Jan 2022 at 04:49, Ralph Stirling
wrote:
> I got to wondering if it
> would be possible to make a miniature taper lock
> type bushing and pulley to clamp onto a stepper
> shaft. Anybody ever seen anything like that?
I have designed and used a few options.
Trantorque are great, but
On Wed, 26 Jan 2022 at 23:36, John Figie wrote:
> *3) in the 7i65 component there are some lines that refer to RTAPI but in
> my case I am planning on using the PREEMPT RT enabled kernel. Does the
> component work with either?*
The RTAPI is a wrapper that supplies a uniform interface (API) for
On Wed, 26 Jan 2022 at 23:36, John Figie wrote:
> *1) what must I do to see these bspi man pages?*
Wel, they _should_ show up here at the bottom under "Hostmot2 API Calls"
https://linuxcnc.org/docs/2.8/html/
But they don't. Oddly.
They do appear in the old docs.
On Sat, 22 Jan 2022 at 04:49, Chris Albertson wrote:
>
> Arduino? Too slow to coune pulses if they happen every 0.0001 inch unless
> the table moves slow.
As long as it gets a couple of samples every 0.1" it should be fine.
Between the pins it's an absolute encoder, like a multi-turn resolver.
On Sun, 23 Jan 2022 at 23:30, fxkl47BF--- via Emc-users
wrote:
> It looks like Palmgren had a passel of those.
> https://vintagemachinery.org/pubs/2459/16973.pdf
Page 14 shows a base design that could be copied.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed
On Sun, 23 Jan 2022 at 18:59, Chris Albertson wrote:
> But this is for a "*mini*-mill" you do NOT need cast iron parts.
He said it was a "small mill". Many would consider a Bridgeport to be
a small mill. I certainly consider my Harrison to be small, but it
weighs nearly a ton.
But, making
On Sun, 23 Jan 2022 at 02:26, fxkl47BF--- via Emc-users
wrote:
> So from the photos in the ad what would I want to have made?
> A big rectangle?
Something stylish and in-keeping with the original, I would think.
Certainly a block thick enough to keep the lowest point of the main
casting clear
On Sat, 22 Jan 2022 at 12:37, Thaddeus Waldner wrote:
>Is it possible to modify Gscreen and remove/hide buttons and other features in
>a way that will not be reversed with updates?
Gscreen is more of a framework for UI designing than a GUI, as I understand it.
On Sat, 22 Jan 2022 at 18:53, fxkl47BF--- via Emc-users
wrote:
> Now just to get it shipped to southern US :)
> Actually there is a foundry not to far from me, Windy Hill Foundry.
Yes, if you are near Windy Hill, then I understand that they do a lot
of one-offs for vehicle restorers etc.
It's
On Fri, 21 Jan 2022 at 16:25, fxkl47BF--- via Emc-users
wrote:
> Making a new dovetailed back plate was what I was leaning towards.
> Any suggestion for material for this?
> A big slab of cast iron would be nice but I imagine but too pricey.
Well, I would 3D print a pattern and have it cast in
On Sat, 22 Jan 2022 at 06:00, Thaddeus Waldner wrote:
> I’d be happy with the gmoccapy UI but it simply doesn’t fit on the screen. My
> plan for now is to edit it and remove some of the manual control elements.
> Any suggestions?
Try Gscreen, it is designed for editability.
Do you really mean
On Fri, 21 Jan 2022 at 15:15, fxkl47BF--- via Emc-users
wrote:
> I recently acquired a Palmgren 800 rotary table for a faction of this cost.
> I would like to modify it to mount horizontally or vertically on a small mill.
> I'm open to suggestion before I start hacking.
I think that I would
On Fri, 21 Jan 2022 at 08:54, andy pugh wrote:
> You might be able to do a lot better than that if you can find a way
> to have the Arduino set timers on interrupts.
> (How fast does the Arduino run a polling loop?)
I haven't watched the video yet (I am in a meeting :-) but I am
On Fri, 21 Jan 2022 at 04:50, Sam Sokolik wrote:
>
> https://www.youtube.com/watch?v=ogUdjX3zerY
>
> The plan is to use the arduino to count the phase difference between the
> input and output. The original control used a 250khz clock frequency to
> count
You might be able to do a lot better
On Mon, 10 Jan 2022 at 18:27, fxkl47BF--- via Emc-users
wrote:
> > Though they are rather expensive if you pay full list price. I think I
> > found a good second-hand one.
>
> Just looking at the prices for those makes my pacemaker work overtime. :)
Maybe there is an answer here?
On Tue, 18 Jan 2022 at 14:18, Todd Zuercher wrote:
>
> Automotive applications were predominately iron, aluminum, and some plastic
> with almost no copper for a very long time before different color antifreezes
> became common.
Depends on your perspective, there is lots of copper in the
On Sun, 16 Jan 2022 at 21:44, gene heskett wrote:
> I first started out with rv antifreeze, but it spoiled and jelled solid
I think I would be tempted to try the waterless coolant that they sell
for cars, though that would depend on how much was needed. It's not
cheap.
On Sat, 15 Jan 2022 at 02:40, Leonardo Marsaglia wrote:
> I have a little question about inhibiting jogging motion. I know I can do
> that with G CODE but I would like to know if there's an easy way to extend
> it to JOG motion.
That depends on the source of the jog motion. I don't think that
On Wed, 12 Jan 2022 at 01:28, Chris Albertson wrote:
> This library would allow the stepper to be commanded
> as if it were a serial interfaced servo motor.
In principle so does LinuxCNC HAL and the "bldc" HAL component.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
On Wed, 12 Jan 2022 at 08:50, John Dammeyer wrote:
> However, I foolishly did not order a collet wrench
I have only ever used hook-wrench style ones. It hasn't been a problem.
Or CNC then file out the corners of the teeth, by hand.
--
atp
"A motorcycle is a bicycle with a pandemonium
On Mon, 10 Jan 2022 at 18:53, Robin Szemeti via Emc-users
wrote:
>
> I'll probably just leave that one alone then, it spends most of its time
> cutting aluminium, where it isn't a problem. I'd rather just have it
> working than spend too much time re-configuring it.
The changes required to go
On Mon, 10 Jan 2022 at 19:04, Eric Keller wrote:
>
> Does the space mouse work under linux?
Good question. apparently some models have a driver:
https://3dconnexion.com/uk/drivers/
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical
On Mon, 10 Jan 2022 at 14:15, Robin Szemeti via Emc-users
wrote:
> ... I've just been typing "sudo apt-get update" and "sudo apt-get upgrade"
> and letting it do its thing. I assume that it installs the latest available
> version for that platform.
No, it will install the latest release of
On Mon, 10 Jan 2022 at 17:14, fxkl47BF--- via Emc-users
wrote:
>
> I'm in the market for a "decent" mouse for cad.
I think that any mouse will do. What makes the most difference for CAD
is what you have in the other hand.
I would now hate to be without my space-mouse for adjusting the
On Mon, 10 Jan 2022 at 12:49, Robin Szemeti via Emc-users
wrote:
>
> It's .. hmm ... I think 2.6 ... it was installed about 5 years ago I guess,
> and kept up with the occasional apt-get update/upgrade although it probably
> hasn't had one in the last year or so. I can check the exact version
On Sat, 8 Jan 2022 at 14:27, Robin Szemeti via Emc-users
wrote:
>
> It was some years ago when I tried it, it was fine on thicker sheet, but
> not thin sheet, like I said, I expect there have been improvements in the
> trajectory planner since then.
There have been improvements to the TP and
On Tue, 4 Jan 2022 at 17:41, Robin Szemeti via Emc-users
wrote:
>
> Out of interest, how is PathPilot related to LinuxCNC?
It's LinuxCNC with their own GUI on top. But maybe v2.7 as I don't
_think_ that they have the joints-axes changes in.
--
atp
"A motorcycle is a bicycle with a pandemonium
On Mon, 3 Jan 2022 at 08:57, John Dammeyer wrote:
>
> and then some sort of broaching/indexing to create the two ring gears
Have you seen: https://youtu.be/VJOem40ggkI?t=1167
(Home-shop gear skiving)
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the
> On 26 Dec 2021, at 13:44, Mark wrote:
>
>> stallation or do a number of standard operations.
>
> Sure. As long as you can guarantee that every single machine manufactured,
> designed, built in someones garage or basement will be identical to each and
> every other machine out there.
To
On Sat, 25 Dec 2021 at 10:39, andrew beck wrote:
> It needs a few things (mainly a jerk control algorithm). And tool
> Management stuff. More work offsets etc.
You might have missed:
http://linuxcnc.org/docs/devel/html/tooldatabase/tooldatabase.html
--
atp
"A motorcycle is a bicycle with a
> On 24 Dec 2021, at 10:46, Jérémie Tarot wrote:
>
> "my" idea along this line would be to develop/document
> a set of "reference implementations"
There are some case studies in the Wiki. However these are probably rather out
of date and are probably not at the level you envisage.
On Fri, 17 Dec 2021 at 15:27, Todd Zuercher wrote:
>
> Andy, Initially I thought what you are saying about the pitch diameters
> needing to be the same was true. And that would be the case if all the
> pinions had the same tooth count and size. But When I was modeling it I
> found that if
On Fri, 17 Dec 2021 at 08:06, John Dammeyer wrote:
> Add the second though and there doesn't seem to be any clear position where
> the second just drops down onto the secondary planet gears. It's always a
> force fit. Either there's a key where it can go together just so perfectly
> or it's
On Thu, 16 Dec 2021 at 07:57, John Dammeyer wrote:
> The AlibreCAM Gear generator doesn't accept module. Instead it wants number
> of teeth and pitch diameter.
> So I whipped up a spreadsheet that converts say the module 1.25 that Todd
> used and chose 19 teeth for the sun gear. That appears
On Tue, 14 Dec 2021 at 19:29, Joop Goedbloed wrote:
> Is there a linuxcnc-config for H-BOT machine with 2 steppers or is there
> additional hardware necessary.
There is support for core-xy:
http://linuxcnc.org/docs/2.8/html/man/man9/kins.9.html
I don't see direct support for H-bot. (But I
> On 12 Dec 2021, at 19:55, Chris Albertson wrote:
>
> I'm surprised that people don't use kinematics to remove the residual
> alignment errors
There is millions:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ContributedComponents
___
Emc-users
> On 12 Dec 2021, at 17:40, Gene Heskett wrote:
>
> Is joint.N.cmd-pos the stable value I need?
It might be motor-pos-cmd. I am not at home at the moment to test.
Is the problem that the column is not square to the table top surface or not
square to the Y or X slides?
> On 2 Dec 2021, at 21:14, Todd Zuercher wrote:
>
> What if you used two outer ring gears of the same diameter one with one
> fewer teeth. Then have 4 sets of planetaries stacked in pairs. Each pair
> would be pinned together
You can just use pinions twice as long as the ring gears. I
On Tue, 30 Nov 2021 at 23:07, Stuart Stevenson wrote:
> Is the tooth shape an attempt to mesh in an involute fashion?
No, because the motion of the teeth relative to each other is very
much unlike meshing gears, and so involute is inappropriate.
--
atp
"A motorcycle is a bicycle with a
On Tue, 30 Nov 2021 at 21:43, John Dammeyer wrote:
> Do you have a similar sized micrograph of the mating profile?
Sorry, no, that's a lot harder to photograph.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses,
On Tue, 30 Nov 2021 at 20:30, John Dammeyer wrote:
>
> I want to look at the tooth shape.
This is a micrograph of the flexspline of my broken HD drive.
https://photos.app.goo.gl/mmJdebQD1QY538xY6
This part of their web site makes a thing about the "S" shape of the
teeth, and has a little
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