On 26 October 2016 at 00:32, Bruce Layne wrote:
> What I'd really like to see
> is a controller in the class of the Raspberry Pi with a stack-on
> daughter board for the FPGA motion control and general purpose I/O.
I think that you might want to consider the reverse, an FPGA motion
controller wit
On 10/26/2016 01:12 AM, Chris Albertson wrote:
> Does anyone here know of one verified case where a packet was dropped by a
> switch? This just does not happen
>
> Also, if you place a second Ethernet dongle on the Pi, the dongle and the
> built-in port share a serial bus. This is not really an
On 26 October 2016 at 01:13, Danny Miller wrote:
> 2. You can set axis limits at anything. I probably would never set a
> negative coord as a limit but maybe that's just me
Actually, this is almost normal for the Z axis. In fact my CAM package
assumes that G53 Z0 is "tool all the way up"
My Z a
On 26 October 2016 at 03:19, Jon Elson wrote:
> Assuming your home switch is 1 inch from the top (max limit)
> and 4 inches from the bottom (min limit),
> and that the HOME_OFFSET is 0, then you should set the soft
> limits like this :
> MIN_LIMIT = -4.0
> MAX_LIMIT = 1.0
Just one caveat with a s
On Wednesday 26 October 2016 01:36:00 Gene Heskett wrote:
> On Wednesday 26 October 2016 00:42:02 Chris Albertson wrote:
> > On Tue, Oct 25, 2016 at 9:11 PM, Gene Heskett
>
> wrote:
> > > On Tuesday 25 October 2016 23:07:55 bari wrote:
> > >
> > >
> > > This is touted to be 100% compatible with R
On 2016-10-26 08:39, Chris Albertson wrote:
> Yes they are that fast in some micro controllers. But on the "Pi" they do
> about 500K.
Where did you get this value.
In my case it runs at 16 MHz fullduplex.
--
"In der Wissenschaft siegt nie eine neue Theorie,
nur ihre Gegner sterben nach und
So you found a dropped packet on one particular combination of
hardware/software some time ago. Bugs get fixed (and yes, new ones
sometimes introduced.) LinuxCNC has had bugs. Doesn't mean that a PC/RTOS
has no business running a machine. There are no collisions on full duplex
ethernet as its n
On Tue, 25 Oct 2016, Chris Albertson wrote:
> Date: Tue, 25 Oct 2016 22:12:14 -0700
> From: Chris Albertson
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] following along in my what if musings about ther new
> oramg
We're running 72Mhz dual channel-DDR-QSPI on a little Cortex ARM =
1.152Gbit/s :) (FWIW, more for super low delay than raw data rate)
On Wed, Oct 26, 2016 at 9:12 AM, W. Martinjak wrote:
> On 2016-10-26 08:39, Chris Albertson wrote:
> > Yes they are that fast in some micro controllers. But on
I have converted a matsuura using a mesa 7i80 (plus some smart serial
daughter boards) and it has been running flawlessly. It really is
amazing. (I am using a motherboard with 2 nics...) And this was one of
peters first 7i80's. When setting up the machine - it would be left on
with linuxcn
I have no idea about cncprofi, but it seems it needs additional stepper for
Z axis unlike mesa thc make use of thc component and single existing z
stepper.
PLease correct me if I am wrong.
--
The Command Line: Reinvented fo
On Wednesday 26 October 2016 08:11:18 andy pugh wrote:
> On 26 October 2016 at 03:19, Jon Elson wrote:
> > Assuming your home switch is 1 inch from the top (max limit)
> > and 4 inches from the bottom (min limit),
> > and that the HOME_OFFSET is 0, then you should set the soft
> > limits like thi
On 10/26/2016 12:36 AM, Gene Heskett wrote:
> On Wednesday 26 October 2016 00:42:02 Chris Albertson wrote:
>
>> On Tue, Oct 25, 2016 at 9:11 PM, Gene Heskett
> wrote:
>>> On Tuesday 25 October 2016 23:07:55 bari wrote:
>>>
>>>
>>> This is touted to be 100% compatible with R-Pi stuff. But has an
>>
> On 2016-10-26 08:39, Chris Albertson wrote:
> > Yes they are that fast in some micro controllers. But on the "Pi" they do
> > about 500K.
> Where did you get this value.
> In my case it runs at 16 MHz fullduplex.
16Mbit full duplex is common for cheap small micro controllers.
It is cheap an
I'm wondering if these could be 3D printed:
http://www.ebay.com/itm/361501013914
--
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45/
--
The Command Line: Reinvented for Modern D
And then attach the paper?
On Wed, Oct 26, 2016 at 11:18 AM, Kirk Wallace
wrote:
> I'm wondering if these could be 3D printed:
> http://www.ebay.com/itm/361501013914
>
> --
> Kirk Wallace
> http://www.wallacecompany.com/machine_shop/
> http://www.wallacecompany.com/E45/
>
> -
On Wed, Oct 26, 2016 at 12:11 AM, Gene Heskett wrote:
> This is touted to be 100% compatible with R-Pi stuff. But has an
> allwinner H3 brain, so it runs on intel code, not arm.
All Allwinner products are ARM:
https://en.wikipedia.org/wiki/Allwinner_Technology#H-Series_.28OTT_box_application.29
h
The little circuit board you envision that sits on top on the Pi. Would be
nice and easy to use. But there is not room on that size card for screw
terminals. You are talking about building a Mesa card that is less than
half the size of a Mesa card. Would be hard to do.
The way I like to do t
The best way to backup a Pi based system is to set it up so a backup is
never needed. You write to the SD card once and save the image file. The
never wrote to the card again. You can replace the card from your
"standard" image file. These Pis will never have a large hard disk
attached to th
On 10/26/2016 07:11 AM, andy pugh wrote:
> On 26 October 2016 at 03:19, Jon Elson wrote:
>> Assuming your home switch is 1 inch from the top (max limit)
>> and 4 inches from the bottom (min limit),
>> and that the HOME_OFFSET is 0, then you should set the soft
>> limits like this :
>> MIN_LIMIT =
On 26 October 2016 at 19:04, Jon Elson wrote:
> Yes, this is why having the home switch much closer to the
> limit is best.
Near the middle might be best, but it needs to be off for half the
travel and on for half the travel.
LinuxCNC knows how to back off the switch if it is already on it.
--
On 10/26/2016 11:31 AM, andy pugh wrote:
> On 26 October 2016 at 19:04, Jon Elson wrote:
>> Yes, this is why having the home switch much closer to the
>> limit is best.
>
> Near the middle might be best, but it needs to be off for half the
> travel and on for half the travel.
> LinuxCNC knows how
The edges really need to be made of rubber or foam not 3-D printed plastic
possibly a paper cone could be replaced by printed plastic. If this is a
critical application like hi-fi for musical instrument speakers the weight and
stiffness of the paper cone matters a lot changing it will affect th
Gentlemen,
Put the home switch wherever you want it OR wherever is convenient.
You can use the +-sign in the ini file to determine which direction to seek
and search for the home switch and index.
You can then offset the home position to wherever you want it AND
you can put +- in the axis limits t
If by 3D printed you mean FDM/FFF/GGG**, yes but it would not be nearly
as smooth. You could use a composite filament for the main part of the
cone and switch a urethane foam for the edges. This is way beyond DIY
unless you are polymer chemist and can swap between using a hot melt
extrusion noz
On Wednesday 26 October 2016 14:31:22 andy pugh wrote:
> On 26 October 2016 at 19:04, Jon Elson wrote:
> > Yes, this is why having the home switch much closer to the
> > limit is best.
>
> Near the middle might be best, but it needs to be off for half the
> travel and on for half the travel.
> Li
On 26 October 2016 at 23:54, Gene Heskett wrote:
>> LinuxCNC knows how to back off the switch if it is already on it.
>
> If you have individual inputs from each switch. But when shared, it
> hasn't a clue which axis is "on".
Yes, some things are just inherently impossible.
--
atp
"A motorcy
On Wed, Oct 26, 2016 at 8:35 AM, Nicklas Karlsson <
nicklas.karlsso...@gmail.com> wrote:
> > On 2016-10-26 08:39, Chris Albertson wrote:
> > > Yes they are that fast in some micro controllers. But on the "Pi"
> they do
> > > about 500K.
> > Where did you get this value.
> > In my case it runs at
Yup. 3D Printed Speaker
|
|
|
| ||
|
|
|
||
3D Printed Speaker
Speaker printed from PLA on an Afinia H479. As you can hear, there is a
significant amount of voice coil rub. It... | |
|
|
From: Kirk Wallace
To: Enhanced Machine Controller (E
> > > > Yes they are that fast in some micro controllers. But on the "Pi"
> > they do
> > > > about 500K.
> > > Where did you get this value.
> > > In my case it runs at 16 MHz fullduplex.
> >
> > 16Mbit full duplex is common for cheap small micro controllers.
> >
>
> I don't understand. Are you
There are flexible materials for 3D printing.
From: "albertson.ch...@gmail.com"
To: Enhanced Machine Controller (EMC)
Sent: Wednesday, October 26, 2016 12:54 PM
Subject: Re: [Emc-users] More Useful Than Yoda?
The edges really need to be made of rubber or foam not 3-D printed pl
31 matches
Mail list logo
