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The specifications miss the minimum step pulse high
time and direction hold time but this should work:

Steptime = 5000
Stepspace = 5000
Dirsetup = 130000
Dirhold = 130000

Note that the picture shows active low
step pulses so make sure you invert
the step outputs (LinuxCNC default is active high)
 

To use the VFD output signal you would need to have the 7I96S
input common (TB3 pin 12) connect to the VFDs input common
(VFD pin 1)

This would connect the drives input common to your 24V supply negative,
which may be undesirable for noise reasons. So it may be better to add an
optocoupler as you first suggested.

Hello everyone, I am using two motors for x and y, a NEMA 17 and a NEMA 23, each with different drivers (A4988 and TB6600). They are powered by the same external laptop power supply and for logic 'estop out'. One motor functions perfectly fine, while the other does nothing. However, if I unplug one motor from the parallel port, the other motor starts working. I am unsure if this is a PC fault or if I should use separate power supplies. I'm not entirely sure where to start troubleshooting. The controllers are connected only through two power cables and one logic 5V connection, so I don't see how disconnecting one motor could affect the other.

Hello !!
i am new here i also had a question about this i have attached a photograph from my driver's manual but not sure what to conclude about 
step time 
Step space
direction hold 
Direction setup 
Can you please help me 
 
 

Well done on your score.

I think you'll find that if the encoder works at all, you don't need to be concerned with it being a little dodgy or imprecise.  Mill spindles generally don't need to be positioned quite as accurately as rotary axes for useable rigid tapping or ATC alignment.

Another thing... shaft encoders come in fairly 'standard' sizes, so it's not too hard to find pre-fabricated mounts.  Have a look around if you find you need something fiddly to mount to the head and you might find something online that'll save you some time.

 

Habe es gefunden!

LinuxCNC samt Erweiterungen etc. hat ja wirklich gute Manuals, Handbücher. Wie man da aber was finden kann und vielleicht findet, ist mehr als chaotisch.

Peter

I have a question regarding work and tool offsets.

I recently finished my CNC after many years and I am having an issue with figuring out how to set work and tool offsets on Probe_Basic.

I have a mechanical 50mm z height tool setter and a Hamier 3d probe.

How would I go about setting the work and tool offsets manually?

I know this question is probably super annoying, but I literally don't know anything about CNC machining.

Kind regards,
Frogmate

Good morning, I have a Mesa 7i96s board and a VFD with the following pinout. I would like to know what the best option is for connecting one to the other.

First left click on the line, then right click and run from here.

Spam removed.

I did some more digging into this issue and discovered there is actually two ways to trigger the "Limits override" function in Probe Basic.

One way is using the window menu (which doesn't seem to work), the other way is to toggle the button under the WCS tab on the right side and that way it seems to work fine.

 

Hello,
the behavior of "single block" & "feed stop" is not what you expect when running a cnc-machine!

I will explain you how it works on Sinumerik, Fanuc, Mazatol....etc

"single block" is just a switch:
- when you activate it, the actual running g-code block will be completed and program cycle stops.
- to run the next g-code block you have to press "cycle start".

- when you deactivate "single block" just press "cycle start" and program runs continuously again.

"feed stop" is just a switch too:
- when you press it all moving axis have to stop moving immediately.

- to continue the program cycle just press "cycle start" again.

So don't mix them, because they are totally different functions!
Maybe someone is able to fix that issue, because it's a little bit dangerous handling the machine.

Martin




 

Thanks, that's very kind of you!

I'm located on the "wrong" side of the pond (Sweden).

I ordered a Omron E6C2-CWZ1X 2000PPR incremental encoder yesterday just a few minutes before I saw your message...

I suspect that this encoder is not genuine as it was a tenth of the advertised official prices so we'll have to see how it works when it arrives. Bought on eBay from a seller who offers both warranty and returns.

www.ebay.co.uk/itm/335292322601

If the encoder I bought turns out to be a dud then I'm very interested in your Koyo encoder.

In order to drive the encoder I ordered two 48 teeth 9mm wide HTD 3M pulleys and a polyamide belt. I would have preferred 6mm belts and pulleys but the supplier didn't carry those. I'll try to remove as much mass as possible from the pulley that will be connected to the encoder.

Big thanks PCW, the Mesa support on this forum really is amazing!

I'll report back as soon as I've tested this setup.

The VFD doesn't have the most user friendly manual so I'm gonna try and verify the output from the VFD using frequency capable multimeter (UNI-T UT61E) first before I wire anything up.

Just to double check. Do you think connecting a wire straight from the VFD output to the input on the Mesa card is going to work even though my 24v ground is not connected to chassis ground? (I'm suspecting this floating ground setup will not work)

Hello,
tried it this week again with the last version.....
Everything works fine.....love it!
No idea why it didn't run last year, maybe patience is the trick

I found an issue and will open a thread for that.

Thank you all for your great work around linuxcnc!!

Martin