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Hi Rod,

The packages up to 200mb can be uploaded to codeberg. No problem.
The scurve is 63mb, it will fit.

The thing is, i always use rip-installations. So my whole mindset is up to a git clone.
Before making a .deb for you all. I have to make a list where what to install.
As i understand your installation path is like /usr/local/ or /usr/
And also the lcnc source need to be recompiled. If files are spread around,
it will be hard to recompile the source.

But i have no oversight now. Maybe first unpack a linuxcnc .iso and look wherer the
files are stored.

It's also not easy to modify the lcnc original make file, because it will not accept .cpp files for compilation.
Otherwise i could just copy all in, and edit the original makefile, and done!

Rodw, what's your idea about this? I am still positive, no problem.

 

Hi Fabian.

In the mean time i experimented with clothoid used for motion. This includes 2 attached clothoids for example.
Now the problem is not the ceres solver, the iterations, or the initial guess value. All these are ok.
It takes about ~12 iterations to fit the clothoid.

There are certain gcode files that have very short segment attached to longer segments under 90 degree angle.
Then the trim algo trims both segments given the P value. But the very short segment is trimmed less then the longer segment.
The clothoid result is valid, however it path can be into the workpiece.

Soon i will show a picture how this looks like. I think the solution lies in even trimming to both segments in some cases, or in all cases.
The solution is therefore quite simple.



 

Is it connected via a direct cable, or does it go through a router/switch/splitter of some sort?

What is the ethernet speed?

Post `ethtool <interface ID>`
`<interface ID>` can be found with `ip a`

ems.post?

"Snail mail" DHL.

DHL Worldwide Express is awesome!

Bankok to Toronto in as little as 50 hours and their web portal is pretty good.

(FedEx has a 99% useless website)

More photos ,this time the Heidenhain servos and the Creativtec.drives. 

Hi Grothus,

always impressive how fast you make progress here.
Did you have a closer look at the problem you called "overfitting"? It looks not like classical overfitting (this usually descibes if a fit follows the data much to closely and therefore follows statiscal fluctuations instead of the desired data trend).
In your case it just found a local minimum during fitting instead of the global minimum. Doing a 360 or creating this sort of step in the corner is a viable solution that is quite smooth etc. it is just not the solution we want.
One possibillity to avoid this would be to somehow create a better initial guess before the fitting starts. This could also reduce the iterations/time needed for fitting. Another possibillity might be to use a different solver.

Best regards,
Fabian

yeah the way it is setup at the moment The PC is on a hinge under the table of the CNC and swings down for service. This means I can use the space under the table to store things. The box with power supplies and breakouts also swings down.

However the pc and the power supply box are very close together on the IO side of the PC and as the CNC machine is half finished I cant lock the power supply box out of the way(I will be able to do this when its done). It impacts my ability to work on the PC . I can detach the PC but it is a massive pain and I theory I shouldn't need to. I have already done a motherboard swap with the PC in it's service position without issue.

Obviously It did impact my ability to troubleshoot. if I just swapped the cables all would have been solved. I swapped everything else I didn't expect that a cable that I had tested for continuity was an issue.

yes the cable goes one to one for every pin. I re-tested it tonight confirmed all pins go straight through. Is this normal? As far as I know it should be? Serial cables should flip Rx to Tx as far as I'm aware.

Ok, I'll try it.
Are you saying I can use 1 stepgen and connect it to 2 drivers in the HAL file?  This is different that physically wiring the one output to two drivers.  This sounds better if it will work as I can't be sure 2 stepgen signals driving the same axis are in phase with eachother.
Thanks, I'll let you know what happens.

I'm going to put my hand up for dumbness.

Designed a PCB using 0603 caps & resistors........stupid me didn't change the pad size to suit hand soldering. Luckily it was only like $6 or $7 dollar mistake.

Thought about building a PnP machine......last thing I need is another side project.

Good morning.
We established a cooperation with UPS for truck/road transport what hopefully will reach more destinations with a lower cost.
Unfortunately is only valid for shipments inside the Euro zone.
For outside the eurozone we currently we only offer DHL express - that works very good, but not inexpensive.

We currently have almost all Mesa boards - linuxcnc related - in stock

No one can seem to agree on anything.
en.wikipedia.org/wiki/Billion

I suppose the lower number of zeros lets you be a billionaire quicker. hahaha


Yeah I've seen that optocoupler thing quite a few times in schematics.

Does the cable go one to one all 25 pins, they might have sent a serial cable.

Sometimes you just have to bite the bullet and get the PC onto a workbench, no matter how much of a PITA it is.

Hi everyoneI have a long initialization of Ethercat on a machine with 7 inovance SV660N servo drivers. I tried different Servoperiods. Sometimes some servo drivers do not initialize - they remain in PreOP. What could be the reason? Maybe someone has encountered this?

LinuxCNC 2.8.4 + ethercat-master 1.6.3