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If you divide the steps/turn by 200 (full steps per turn), you get the microstep ratio
(for 99% of 2 phase step motors)

Microsteps are by definition the number of step pulses needed to get a full step.

I would start with 5 usec (5000 ns) for steptime/stepspace as a starting point and only decrease
them if you can't reach the desired velocities (and the drive can accept shorter pulses)

I would use 20 usec (20000 ns)  for dir setup and hold (as this has no real effect on performance)

Moin Muecke,

sei mir nicht böse aber in der Zeit in der Du deinen Post verfasst hast, hättest Du locker mal googeln können
wie man die Uhrzeit einstellen kann.

Debian 12 Uhrzeit einstellen

Dann muss man halt etwas probieren, welche Lösung passen könnte...

Gruß

Lampje wrote:

You are saying that in LinuxCNC you have to tell it how many microsteps are in 1 regular step?

No, not LinuxCNC as it uses steps per unit only, but you can tell it on wizards in several ways.

Lampje wrote:

But how do i know how many full steps there are in 1 revolution?

Motor steps per revolution are 200 usually, there are other types with 400 steps per turn but are rarely used in hobby machines. And there are also 3 and 5 phase stepper motors that have 300/600 or 500/1000 steps per revolution.

Lampje wrote:

So to what number would I have to change the 1000 then? And what about the step times?

That you will have to figure out depending on your setup:
-belt drive = pulley / teeth / pitch / reduction if any
-ball screw or lead screw = pitch per turn
etc

We use these:

It's a fuse and a switch in the same box, the picture shows 2 of them.

Hi PCW.
The dip's on the drivers have it as needing 1600 (or 25600) pulses for 1 revolution.
In the stepper settings in Lightburn you set the pulses per revolution, so 25600. And I was expecting the same behaviour in LinuxCNC.
You are saying that in LinuxCNC you have to tell it how many microsteps are in 1 regular step? But how do i know how many full steps there are in 1 revolution?
So to what number would I have to change the 1000 then? And what about the step times?

unknown wrote:

One thing you need to remember is that the PSU have an initial inrush current that is greater than the max current the PSU draws when running.
I went with fuses rather than circuit breakers.
 

Thank you Rob. I have found the following specs on the MDR-100-24 PSU:



The full PDF document address is: 100W Single Output Industrial DIN Rail Power Supply MDR-100 series
Best regards,

...behai.

I don't think the 1600 and 25600 numbers are microsteps, but rather
steps per turn, so 1600 = 8 microsteps and 25600 = 128 microsteps
 

One thing you need to remember is that the PSU have an initial inrush current that is greater than the max current the PSU draws when running.
I went with fuses rather than circuit breakers.

After you install Flex GUI from the CNC menu select Copy Flex Examples and all of the current examples will be in the linuxcnc/configs/flex_examples directory. Also after you install Flex GUI the PDF doc is on the CNC menu as well as some tools.

I don't care a whole lot for watching videos but sometimes it gets the idea across better when you can see someone click on this then do that in a video. I really hate videos with zoom bang intros or looking at some ugly mug in the corner of the video.

JT

Hallo miteinander,
ich habe das Debian hier von der Seite bei mir installiert, seit einiger Zeit stimmt meine Uhr nicht mehr vom System.
Wie kann ich das beheben?

Ich nutze Debian 12

Es ist jetzt =>  16:50 Uhr
Das System sagt: 17:12 Uhr

Was ist da nicht richtig Synchronisiert

 

Gruß Mücke

 

if you found a ui file that you like

Ah -- but that other question:   where would I find complete UIs?

I may watch a few videos, but I'm a little old skool when it comes to TV time on the computer. Once I find my way around the docs, I think I'll be fine. Thanks for the INI file pointer.

paul

There are quite a few running Flex GUI on machines.

JT

Yes, if you found a ui file that you like you can just copy that to your new configuration directory and change the DISPLAY and add the GUI setting.

gnipsel.com/linuxcnc/flexgui/ini.html

There are quite a few running Flex GUI on their machines including myself. It is quite stable now.

I have a lot of videos on getting up and running with Flex GUI
First tutorial videos
www.youtube.com/playlist?list=PLzYeNVt90...AsRGVDCtpW9_7ZXiSTak

More videos
www.youtube.com/@Gnipsel/videos

Now that Flex GUI is on version 1.2.0 I plan on making new videos to show off the features and how to add and use them.

JT

You would normally use ENCB for direction.
(and set counter-mode to true for "Step/Dir")

From the hostmot2 manual page:

       counter-mode (bit r/w)
           Set to False (the default) for Quadrature. Set to True for Step/Dir (in which case
           Step is on the A pin and Dir is on the B pin).

Using GPIO for direction could lose/gain counts on
a direction change.

Note that if you need more encoder channels, there are 7I96S configurations with multiple
encoders on the P1 expansion connector.