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leexi wrote:

interesting to know what are the step output card band with
 

Don't worry. In a real machine feed and acceleration are limited by mechanical parameters.
Whereas increase microstepping decreases effects. In other words there is big different for 1/2 and 1/4 and small different for 1/128 and 1/256...

The maximum step rate will be limited by the step length and step space parameters.
In a working system, these parameters in turn are limited by the drives minimum timing values.

If the clone cards uses that same clock scheme as Mesa cards ( Stepgen base clock= 100 MHz ),
step rates to 10 MHz are possible.
 

Hi
test (open loop) non differential output, max step frequency output, perhaps the noise is coming from my testing probes, picture at 3Mhz this output frequency is way beyond my actual needs. and interesting to know what are the step output card band width



and At 5Mhz this is only for testing proposes my servos bandwidth are way below this output

 

Holzwurm56 wrote:

"“linuxcnc-uspace” will also run on a standard Linux kernel for use as a simulator, but it should not be used to control hardware."

Das ist mit normaler "generic" kernel>
Mit RT kernel wir ales nutzen die LinuxCNC uspace fuhr machine steurung.
Fuhr Mesa karte, es ist besser die officiele ISO nutzen, nur wen etwas funkt nicht mit Trixie, dan nutz meine ISO.

Du brauchst nur die 'Debian 13 Trixie PREEMPT-RT ISO ' runter zu laden, die hat alles was du für Mesa Karten brauchst.

Es gibt wohl LinuxCNC und LinuxCNC-uspace. LCNC-uspace wäre nur zur Simulation aber nicht zur Maschinensteuerung. Die neueste Version 
ist wohl Debian 13 mit LCNC 2.9.10, das ist aber mit uspace. Was soll ich jetzt am Anfang installieren? Es soll natürlich mit Mesa-Karten z. B.
7I96 zusammenarbeiten.
"“linuxcnc-uspace” will also run on a standard Linux kernel for use as a simulator, but it should not be used to control hardware."

habe mir aus dem Forum von Tommylight LM22.1 mit LCNC2.10 runtergeladen

Warum nicht die offizielle stabile Version 2.9.10 von hier linuxcnc.org/downloads/ statt irgend eine master version von vor einem Jahr?

Ich will meine Drehmaschine auf eine modernere Steuerung umrüsten. Jetzt läuft sie unter Mach3 und 2 Printerports. Ich habe aus alten
Zeiten noch eine Mesa 7I96 und habe mir aus dem Forum von Tommylight LM22.1 mit LCNC2.10 runtergeladen. Wichtig sind für mich 2 Handräder damit ich auch quasi-konventionell drehen kann. Hat jemand so etwas schonmal gebaut und kann mir ein paar Tipps geben? Oder gibt
es unter LCNC eine bessere Lösung? Die 7I92 scheint ja eben sehr aktuell und beliebt zu sein?
Ich habe die Frage im englischsprachigem Forum gestellt, weil mir das mit den Google-Übersetzer
doch etwas umständlich ist, stelle ich die Frage auch nochmal hier.
MfG
Hans

I found the solution for fanuc style tool numbers.
No changes to Becksvill's code, this will work anywhere.
1. Create settool.ngc file2. Add to your ini file in [RS274NGC] sectionNow, for example, tool 1 will be loaded even if there is T0101 in g-code and tool 101 is not present in tool table. 

Becksvill wrote:

if you want to install this i have made it as simple as i know how to.  
step 1 if on a brand new install from the ISO then open the linuxcnc config picker first and open any sim.  that will make folders for linuxcnc and configs etc
step 2 copy and past this file into the normal configs directory.  and unzip or unzip before copying

open the linuxcnc config picker again and open this config.  click desktop shortcut.

For me this not works. LinuxCNC starts, but you can't homing or do any moving (following error).
In my opinion, the better way is you collect only necessary files and say what we have to change in standard sim ini.

I did some test with config copied from sample-configs/sim/gmoccapy/lathe_configs.
This is gmoccapy and I recommend for you.
The 6,5 font size is not readable for me. I suspect this is from lack of space in Axis.
In gmoccapy you can safely use 12 font size.
There is one problem to solve - "generate & load" button works partially, generate, save, but not load. Manually loaded lathe_profile.ngc works as expected. Maybe rename button to "generate" only? 

For me fanuc style Tnnnn is a problem. I never used this, don't want this, and tried to remove this "advantage", but no luck.
How to change sources for use standard Tnn tools?

I tested only "OD turning", seems this is good idea and good software, and worth to test the rest.

 

meister wrote:

Sorry, but I can’t exactly create a sample for each of the 100,000 possibilities.
 

I don't ask you for all possibilities, but only for share configs you used for your tests.

leexi wrote:

after some test I found the maximal output step frequency that I can get is around 100kHz, , beyond this frequency I start getting following error message, no matter what value on following error is placed at .ini
Do you know if is possible to increase this frequency? 
 

Check max acceleration in your ini.
Low acceleration with high speed increase ferror.

Sorry, but I can’t exactly create a sample for each of the 100,000 possibilities.
But it’s not difficult to create a configuration from scratch.

Hi Tommy, I downloaded the ISO from your first post. Which software did you use to calculate the MD5? I’m using MD5-Check and getting a different MD5. Or did you post a newer version in another thread? The UEFI installation method seems outdated—do I need to disable Secure Boot?
Many thanks,
Hans

jarcysgru wrote:

Hello, I've run my second Chinese 7i92 board on the lathe. File 7i92_G540x2D. The SSK-MB2 board from BOB works fine.
 

Hi.
I have got this Lenovo cable:

It is important this has 26 pin plug which can move or remove pins. (There are flat cable with fixed plug too.)
You have to make one 1mm hole because Mesa has all pins, but Lenovo motherboard's socket only 25.
When you remove bracket, the second plug fit BOB without problems.
Why removable pins are important?
1. You must move GND pins if you need 5V power from mesa socket.
2. The PC817 optocouplers on BOB have very low bandwith.
If you will to use 7i92_5ABOB_Enc.bit and configure encoders=1 in hal file, this fits PC817 optocouplers on BOB.
I removed three pins from cable plug and move them to second mesa socket and use them as limits connected to BOB.
I have E6B2CWZ6C 2500 p/r encoder working well with 5V power.
If you make encoder's cable ends with goldpin plugs (no matter how) you can fit them to Lenovo cable 26 pin plug.
Unfortunatelly I can't make photo, because I'm now in other place than my lathe.
The encoder works well with 2000 RPM. With PC817 optocouplers it will be only 200 rpm or less, I suppose.
Note, that E6B2CWZ6C manufacturer promised 100 kHz bandwith.
If your spindle can spin more, you may have to use less resolution encoder.