that know that part of
the code.
Chris M
From: Todd Zuercher via Emc-users
Sent: May 29, 2024 6:58 PM
To: Enhanced Machine Controller (EMC)
Cc: Todd Zuercher
Subject: [Emc-users] Tool Offset Parameters?
I was just trying to figure out something and found in my
Yes
Sent from my Galaxy
Original message
From: Todd Zuercher via Emc-users
Date: 2024-05-22 7:47 a.m. (GMT-08:00)
To: "Enhanced Machine Controller (EMC)"
Cc: Todd Zuercher
Subject: [Emc-users] GladeVCP Question?
Is it possible with Axis to have a GladeVDP side panel,
> On May 20, 2024, at 6:26 AM, Todd Zuercher via Emc-users
> wrote:
>
> I did to exactly that. With the dial indicator on the ends vs the center, it
> moved 10 times more in the center of the gantry than it did on the ends. I
> will be the 1st to agree that the servo tuning could probably
Just by chance is anyone here interested in advanced machine control and CNC’d
metal parts?
Here is a real product you can buy today for $16K that defines the above. It is
just like our 3-axis milling machines but 43-axis. It just went on sale. API
is on GitHub.
See video —>
I think I fell for the “beam is bending” idea too. It might be. The way to
find out is to measure the beam center with the dial indicator and then measure
the ends of the beam. It might be that the entire beam is moving
Is the gantry belt driven? Long belts can act like springs. The
This kind of design “works” only if you make the overall dimension MUCH larger.
It is an overall more efficient design but bmovimng material does not add
streght of stiffness. You would need to do something like scale the beam up to
maybe twice its size then cut away half the metal.
The
Adding anything inside is the worst place to add material. Add it outside.
Stiffness is the cube of the beam thickness, so you really want to make it
bigger.
Then secondary to making it bigger is to improve the shape to remove those
parallel sides.
So it you are just going to epoxy
> On May 13, 2024, at 1:45 PM, Todd Zuercher via Emc-users
> wrote:
>
> Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam
> on a gantry router without adding too much mass? What is there now is a 4" x
> 8" rectangular 3/8" walled extrusion that is 145" long.
>
>
> On May 10, 2024, at 9:49 AM, gene heskett wrote:
>
> On 5/10/24 11:25, Chris Albertson wrote:
>> Rsync will copy data at the file system level.I think the OP wants to
>> copy the partition tables and boot sector.But rsync can copy across a
>> network
Rsync will copy data at the file system level.I think the OP wants to copy
the partition tables and boot sector.But rsync can copy across a network
and is a decent way to make a backup of your data.
Clonzilla loks like it can work. I’ve always used “dd” because it is a two
letter
I assume the laptop runs Linux.If so then you’d use “dd” to clone the disk
drive. “dd” is installed on every Linux system I’ve ever seem. So you already
have it. This assumes you are copying it to an identical drive.
The trouble is that you can not have booted from the drive you are
> On May 1, 2024, at 8:55 AM, andy pugh wrote:
>
>
> I think that the attraction of the Beagleboard was that the PRU could be
> used for step generation and encoder counting.
This gets into the difference between a Linux PC and a microcontroller.The
microcontroller has lots and lots of
The magoroty of people who do not want to make CNC tools their hoby and just
want to cut metal, wood or plastic, they would be best sewrved by one of the
“out of the box” solutions, like Acorn. No one, except Torch sells an LCNC
solution that come rewady to run with hardware and pre-istalled
No it does not fail, we can always send new commands in real time to be
executed “right away” (at the current time) and make the queued execution
system look and act as if there were no queue. A command taged with the
current time will jump to the front of the queue.
The system also allows
/16/24 20:46, Chris Albertson wrote:
>>> On Apr 15, 2024, at 7:20 PM, gene heskett wrote:
>>>
>>> On 4/15/24 21:16, Gregg Eshelman via Emc-users wrote:
>>>> I have a Hictop printer with some issues so I'm gathering parts to update
>>>> it. Among
> On Apr 15, 2024, at 7:20 PM, gene heskett wrote:
>
> On 4/15/24 21:16, Gregg Eshelman via Emc-users wrote:
>> I have a Hictop printer with some issues so I'm gathering parts to update
>> it. Among them is a Big Tree Tech SKR 1.4 board (not the Turbo, which is
>> identical except runs the
> All very true and well for someone equipt with the income and mental gear to
> use that chain of tools profitably. But I'm an old Iowa farm kid, we made
> what we needed. The "store" was 15 miles of horse drawn wagon over a mud
> road the county graded about 2x a year and all of a days
> On Apr 11, 2024, at 11:49 AM, John Dammeyer wrote:
>
> Where I'm still having trouble is understanding the compromises.
>
> Using G02 I,J motion it's possible to specify a feed rate and spindle RPM
> that remains constant regardless of the spiral diameter. This approach
> generated by
> On Apr 11, 2024, at 9:05 AM, gene heskett wrote:
>
> On 4/11/24 11:38, Chris Albertson wrote:
>>> On Apr 10, 2024, at 1:14 PM, gene heskett wrote:
>>>
>>> On 4/10/24 13:30, Chris Albertson wrote:
>>>> Do you even need a rotory table to
> On Apr 10, 2024, at 12:47 PM, gene heskett wrote:
>
> On 4/10/24 13:03, John Dammeyer wrote:
>> Hi Gene,
>> Just like I can't get my head around Fusion360 or similar CAD.
I find that many people’s problem is that they are still thinking that CAD is
used to “draw” a part and that somehow
> On Apr 10, 2024, at 1:14 PM, gene heskett wrote:
>
> On 4/10/24 13:30, Chris Albertson wrote:
>> Do you even need a rotory table to cut a spiral?
>
> Now that you ask, I think the answer is probably no. Take a look at the nurbs
> command G5.2 where a group of po
> On Apr 10, 2024, at 10:44 AM, Ralph Stirling via Emc-users
> wrote:
>
> Use the parametric equation of a spiral and compute it *inside* your
> g-code program.
>
> x(t) = c1 * t * cos(t) + x0
> y(t) = c2 * t * sin(t) + y0
COnceptually that is it. But do you really want to cut afull depth
Do you even need a rotory table to cut a spiral?
> On Apr 10, 2024, at 12:09 AM, gene heskett wrote:
>
> On 4/10/24 01:57, John Dammeyer wrote:
>> A friend and I have been discussing exactly how to write the G-Code to
>> create a spiral scroll.
>> His rotary table 90:1 reduction with a 1600
The Pi5 has the advantage over a Pi4 of not only a faster CPU but the real step
up over the Pi4 is that you can install the file system on a M2 SSD and not
have to run off the SD card.
But if you look at the price, you get more for the same money if you buy a
low-end Intel PC from a place like
I remember once working at a company where we bought a fairly high-end PC. We
found we could not export it without a license. But guess what? It was made
in China. Some rules are pointless.
> On Mar 18, 2024, at 7:33 PM, gene heskett wrote:
>
> On 3/18/24 18:50, Jon Elson wrote:
>> On
Silicon carbide is classified as a “semi-conductor”.It is used to make some
heavy duty rectifier diodes and maybe other stuff
Oxide-coated tools likely would conduct because the oxide wears off really
fast,
OK, I just tried a black oxide tool and I see ZERO conductivity. But then I
test
If you are using it as a probe, why not put the drill in the chuck backward,
then you have a precision rod, not a drill.
Spinning seems like an interesting idea, moving fraction is always less than
static friction. You would likely need to spin a 3mm rod fast enough so that
the tangential
Are the rails a standard part, or are they custom? If a standard part you
could replace them, they install with just a screwdriver. These used to be
very expensive until they started making themin Chine. Now pretty good rails
are available at the 20-something dollar price point. But only
The man page for Mitsub_vfd mentions the required settings. Check the scaling
of the command.
Chris
Sent from my Galaxy
Original message
From: Thaddeus Waldner
Date: 2024-03-01 10:59 a.m. (GMT-08:00)
To: "Enhanced Machine Controller (EMC)"
Subject: Re:
It is very easy to compute the rotational momentum of a complex-shape flywheel.
Let’s use a simplified case as an example: You have a 100 mm diameter steel
disk with an 80 mm hole. This looks like a ring made of 10 mm thick metal.
First compute the momentum as if there was no hole, for a
It is pretty easy to see WHY the z-axis is set up the way it is on a lath and a
mill and why it is different. You need a well defined “zero”. On a mill, the
machine's “zero" is the table and one a mill it is the chuck. A lathe has not
other well define place on the machine, the tailstock
Andy
I too have catpo 3,4 and 5 tools. I look forward to reading/seeing your
adventure in this.
I also agree it would surely show off some of linuxcncs advantages!
Chris
From: andy pugh
Sent: January 3, 2024 11:52 PM
To: Enhanced Machine Controller (EMC
When it comes to flexing and bending, think about the bed too. If the servo
motor and pullies are mounted at the tailstock end, then the bed will carry the
reaction forces and see exactly the same tension and “twist” force as the
screw. But if the motor is mounted at the headstock end the bed
>>
>> Depends on the mill or? In the case of my G0704, the accelerometer should go
>> on the table for xy motion, not the relatively stationary chuck which
>> generally only moves vertically. In the chuck on something like the 6040, a
>> medium sized gantry I have. The acceleromter s/b on
Machine tools are a little different from 3D printers because
1) Printers are not built nearly are solidly are milling machines. Milling
machines do not flex very much
2) the printer head moves in air and there is no resistance to movement. While
an end mill has to have force applied to cut
Debuggers don’t work well with real-time code. and there is WAY to much code
for that.
Professionally I’ve had to come up to speed on large software projects several
times. The best way is to first become an expert at the user level and learn
what it does. This applies to radars, camera
I missed the beginning of this. What kind a machine is this?
As for the power supply, they are very hard to debug if you don’t have a
schematic. But what about replacing it entirely?
Good motors are always expensive. But encoders have gotten cheap and easy to
use. The last one I bout
If it is a simple linear power supply, yes they are very easy to debug and
repair, LIkey it is the caps.
But switching power supplies are much harder to debug, You can guess it might
be the same issue but these have dozens of parts that can fail.. In any case,
the cost to repair is small.
I ran Fusion360 for a long time on Linux. It’s easy, just install a virtual
machine and run Windows on the VM and Fusion on Windows. I got pretty decent
performance using a low-end Nvidia GPU card.
Now I run Fusion on an M2-Pro powered Mac. Performance is better now that they
have an
feeler guages) under the gear where it shoulders up to the case can
> probably reduce the backlash by a significant amount.
>
> *Ryan McIntosh*
> E4F Designs
> (204)770-3682
> r...@pebkac.ca
>
>
> On Thu, Nov 23, 2023 at 1:25 PM Chris Albertson
> wrote:
>
>&g
> On Nov 22, 2023, at 1:06 PM, gene heskett wrote:
>>
> I'd have to agree Andy. I need to design a disk brake for my A axis as
> there's half a degree of slop in the worm drive which if it gets to the motor
> will be held, but the slop in the worm makes for sloppy looking holes, but
> the
Wh
> On Nov 22, 2023, at 12:12 PM, andy pugh wrote:
>
> Quite a clever idea for machines with closed controllers and no easy
> way to provide motor power into the workspace.
>
> With LinuxCNC it's probably always going to be better to be fully motorised.
What about cost? If this device is
This is a VERY capable board. The main thing it has is the FPGA and a very
fast SYZYGY connector. It could drive a multi-axis mill as well as any MESA
board. But it is not plug and play with LCNC. You’d need to write code for
the onboard FPGA and create a small PCB to connect SYZGY to a
eans writing a
> user manual and far more comprehensive information on CANopen.
>
> My point of making the python and hal info available was to show that it's
> pretty easy to integrate some sort of serial port control into linuxCNC.
>
> John
>
>> -----Origina
The best way to distribute stuff like Python source code is to place it on
GitHub and then every time you update it, send out a notice to tell people
what’s new and where it is.
GitHub is a free service and it offers more than just a place to store code.
It also offers bug tracking and a
I think with encoders that are not symmetric 50/50, you need to look only at
the leading edges. (Or only at the trailing edges)
Yes,this cuts the resulution in half but removes the nose.I think for
somethig with a lot of rotational inertia, like a spindle, you can use
interpolation to get
LCNC was new.
Would I ever do this for a machine tool? No. For me a machine tool is a tool.
I use it to make stuff.
> On Aug 5, 2023, at 5:26 PM, John Dammeyer wrote:
>
> Chris,
> I must admit I had a bit of a chuckle when I read your answer. It's so easy
> to just
Why start with a BBB/Pi4 and then add a screen and so on.
A better starting place would be a low-cost Android tablet. Perhaps like this
one. For $120 you get the CPU (that runs Linux), a touch screen and WiFi.
What is needed is a way to connect it to a machine tool.
I think the BBB was popular because of the twp PRUs. These are programmable
processors that are separate from the CPU. So you can get very accurate
real-time pulses out even with poor latency under Linux.
However, this does require programming the PRUs.Machinekit had a HAL unit
for the
I have some Pi and BBB boards that I use for robotics projects. I use them
because they are physically small and can run on battery power. But do people
need that for a machine tool? Are people building portable battery-powered
CNC milling machines?If the machine is very heavy and
> On Jul 11, 2023, at 5:42 PM, gene heskett wrote:
>
> ... I'll bet real money that OpenSCAD is easier to learn.
Openscad is certainly easy for some simple things but impossible for others.
Try making a cordless power tool in OpenScad.
But in Fusion a power tool is used as an
> On Jul 6, 2023, at 9:22 AM, Roland Jollivet wrote:
>
> The small 4-axis CNC machine,'Pocket Nc' uses LinuxCNC as far as I can
> tell, and it seems to run just fine. Or does it?
Does this device move all four axes at the same time while cutting? Or does it
use the fourth axis only to
It is not a public Beta. First you get Fusion 360 running which means setting
up an account. They also need to see that you use Fusion regularly.
Then you apply for membership in the “Insider’s Program”.
More here
https://feedback.autodesk.com/key/Fusion360Insider
There are other new
> On Jul 5, 2023, at 11:36 AM, gene heskett wrote:
>
> On 7/5/23 13:29, Thomas J Powderly wrote:
>> Since this thread has 'evolved' into free 3D modeling software...
>> Can I ask how to get Fusion 360 on a Linux box?
>> I remember several failed tries but I font recall why.
>> LinuxCNC
> On Jul 5, 2023, at 10:27 AM, Thomas J Powderly wrote:
>
> Since this thread has 'evolved' into free 3D modeling software...
>
> Can I ask how to get Fusion 360 on a Linux box?
It is easy. But you need Linux on Intel. ARM-based Linux will not work
1) install a virtual machine system.
With no look-ahead, it might work well for those who use the fourth axis as a
way to rotate the part only to expose a new side for more 3D milling. In
other words, you don’t need look ahead if you are not cutting will rotating.
But if all four axes are moving at the same time, looking ahead
The problem with transforming an STL file to a “real” CAD file is that the STL
is only an approximation of the true shape. The software would have to have
some intelligence to see that the designer intended to (say) have a curved
profile revolved around an axis to make a complex shape on a
I’m working on the same kind of thing. I want to add an encoder to a BLDC drone
motor and we don’t have much shaft length at all.
The design “secret” is to realize that you do NOT need a plate or any material
at all between the motor and the encoder. You can support the encoder from the
rear.
> Is there any reason I can't clamp the motor in a vice and pop in two holes
> and tap them with a bottom tap at the spacing of the mounting flange?
The metal end plate might be a lot thinner than it appears from the outside.
Is it thick enough to support threading? It might be a thin
I would add positioning moves (positioning all of XYZ) before the
G33.1 because otherwise the tapped hole can be anywhere - the
program is indeterminate. This sure might mess up any attempt by
your GUI to check the program or generate a preview.
Chris
On Wed, Jun 14, 2023 at 09:14:20PM +0200
> On May 20, 2023, at 2:12 PM, marcus.bow...@visible.eclipse.co.uk wrote:
>
>
> Interesting idea, which makes a lot of sense.
> So you would end up with a 'solid' epoxy/glass mix. What would its
> performance be like compared to a heavy dense epoxy/stone mix?
Glass and stone are not much
If you are going to the trouble of filling a frame with epoxy then two things…
1) Why bother with the frame, just print a plastic mold and fill that. with
epoxy. Then it will be the exact size and shape you need.
2) Don’t use epoxy as it is not very stiff, Mix the epoxy with glass fiber
I think there would be a huge variation. A cheap $100 consumer sewingmachine
would not be at strong as an industrial sewing machine that sells for 20 times
as much.
One problem with many homemade gentry machines is that people us too-thin
material for the base.If the gantry rails are
t/lists/listinfo/emc-users
> >
> >
> >
> > ___
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> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
> Cheers, Gene Heskett.
> --
> &q
7C638160531218900158%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=rkhVNnOD5ghrL%2BUAxVXh0vwtzjq2NXxvWMPYm872ToA%3D=0
>
>
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;
>
>
>
>
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Redondo Beach, California
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raham Dunn Inc.<http://www.pgrahamdunn.com/index.php>
> 630 Henry Street
> Dalton, Ohio 44618
> Phone: (330)828-2105ext. 2031
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>
der to the spindle. I know this is a lot of direct and implied
> questions, and I really do appreciate any help. I'm trying to understand
> this in depth so I can proceed logically.
>
> Thanks & Best
> Gene
>
>
>
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and the gear spins on the shaft. Bt the plastic never spins on
the 30 mm disk.
On Sun, Feb 5, 2023 at 8:23 PM John Dammeyer wrote:
> Thanks Chris.
> That's why I've been slicing the parts. Some of them I'd just turn from
> metal. Not worth first doing it in plastic. But some of t
le to implement CAN bus and then run
> other slower I/O devices with CANopen instead of a second USB port.
>
> So I'm back to wondering about the user interface and the teaching
> capabilities and to use LinuxCNC instead of hard coded Teensy Arduino style
> programming.
gt; John
>
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Redondo Beach, California
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; > This script assumes that you have already set up the hardware
> > connections
> > between your 7i92 card and stepper motors, and configured the 7i92 for
> > use
> > with LinuxCNC. Note that you may need to modify the pin assignments and
> > other parameters based on your specific setup.
On Thu, Jan 26, 2023 at 6:11 PM John Dammeyer
wrote:
> > From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> >
> > On Thu, Jan 26, 2023 at 5:03 PM John Dammeyer
> > wrote:
> >
> > >
> > > I should probably buy another high speed 16GB or
n the server that uses a versioned file system and is
continuously backed up.
--
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Redondo Beach, California
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I
> > think that's what's called the conversational interface on Tormach?
> >
> > John
> >
> >
> >
> >
> > ___
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> > Emc-users@lists.sourceforge.net
> >
> https://nam04.safelinks.protection.out
tell us what happens?
--
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st
Linux version, and you need to upgrade to fix a bug. The solution is
"docker" or virtual machines. You end up running multiple copies of
Linux. This is inefficient, but sometimes the only way.
--
Chris Albertson
Redondo Beach, California
___
1
> years retired, and still here.
>
> And tell us how you did it when it working.
>
> Cheers, Gene Heskett.
> --
> "There are four boxes to be used in defense of liberty:
> soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author,
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t is easier to spend $110 and buy an FPGA
based one.
Chris Albertson
Redondo Beach, California
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especial use of mechanical geniuses, daredevils and
> > lunatics."
> > � George Fitch, Atlanta Constitution Newspaper, 1912
> >
> >
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> >
Ethernet card
<http://store.mesanet.com/index.php?route=product/product_id=381>
On Thu, Jan 19, 2023 at 9:16 AM Chris Albertson
wrote:
>
>
> On Thu, Jan 19, 2023 at 4:26 AM andy pugh wrote:
>
>> On Thu, 19 Jan 2023 at 09:51, Robin Szemeti via Emc-users
>> wrote:
>
stitution Newspaper, 1912
>
>
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much appreciated thanks in advance,
>
> Linden
>
>
>
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--
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__
circular hard algorithem, circular
> soft algorithm:
>
> I wonder what is meant by interpolation algorithm.
>
> > On Jan 9, 2023, at 9:52 PM, Chris Albertson
> wrote:
> >
> > Amazon has a turn-keyCNC controller for $480. This includes the whole
> kit,
> > computer
m/Axis-Controller-Handwheel-MPG-Emergency/dp/B09WLDKW53
<https://www.amazon.com/Axis-Controller-Handwheel-MPG-Emergency/dp/B09WLDKW53?ref_=ast_sto_dp=1>
User Manual:
/nvcnc.net/pdf/DDCS%20Expert%20User's%20Manual%20V1%20(Part1)-nvcnc.pdf
<https://nvcnc.net/pdf/DDCS%20Expert%20User's%2
aw, we must first make the law respectable.
> - Louis D. Brandeis
> Genes Web page <http://geneslinuxbox.net:6309/>
>
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at 4:03 AM andy pugh wrote:
> On Mon, 5 Dec 2022 at 02:20, Chris Albertson
> wrote:
>
> > and we don't even know the exact kind of steel in the rod. Without
> knowing more it is a toss-up.
>
> You don't need to know, all iron alloys have the same stiffness (to with
Wrap string around each end in opposite directions and
hang weights on the string. Or place a torque wrench on both and measure.
> --
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as there is not cutting
force.So why not look up some CNC router projects? It is a common
LinuxCNCproject.
I would still use those closed loop steppers. With a week-long print, you
do not want skipped steps.
On Sat, Dec 3, 2022 at 5:00 PM gene heskett wrote:
> On 12/3/22 18:35, Chris Albertson wr
;
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t 5:38 AM gene heskett wrote:
> On 12/1/22 00:47, Chris Albertson wrote:
> > Cutting square tubing is no harder than cutting molding around a door
> > frame. Use a miter saw. A fine tooth hacksaw blade works well for
> > carbon fiber.
> >
>
> My mitre saw i
>
>
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Chris Albertson
Redondo Beach, California
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notify the sender immediately
> by return e-mail and delete this communication.
>
> Thank you.
>
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Ch
With video production quality, it is easy to move from "amateur-looking" to
"pretty good" without spending a fortune. But then after that, each small
increment practically doubles the cost and effort.
On Wed, Nov 23, 2022 at 8:54 AM andy pugh wrote:
> On Wed, 23 N
very high impact videos that “advertise”
> the capabilities. I think these utilize all the points Chris makes and
> then go well beyond.
>
> Not suggesting you have to go to thier level but offering additional
> inspiration.
>
>
> On Tue, Nov 22, 2022 at 2:01 PM Chris Albertson
zaxBU0EVr0
>
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Chris Albertson
Redondo Beach, California
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they do give you options for space and size.Maybe not as much as
you would like but you can get down inside the details if you like.
On Sun, Nov 6, 2022 at 3:20 AM gene heskett wrote:
> On 11/5/22 21:14, Chris Albertson wrote:
> > For making a simple and quick GUI in Pytho
ibility
> forward.
>
> Many thanks on the opinions,
> Ted.
>
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Chris Albertson
Redondo Beach, Calif
360 can do parts as complex as say a motorcycle transition
housing. Or that shoulder bulkhead assembly I posted.
Hi Chris,
>
> > -Original Message-----
> > From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> > Sent: November-02-22 9:55 AM
> > To: Enhanced Mac
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