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Any quadrature encoder counter should work.

I would first reduce the acceleration in the INI and see if that makes a difference, just because that is quick and easy. (and you know exactly what you have changed, which might not be the case with tuning software).
That's probably not the final solution, but it may help narrow-down the problem description.

Hartwig wrote:

Yes, you are right, the tacho signal can be connected directly to the DC motor amplifier. I have only one amplifier for the 3 axes. So I can run them only in sequence.
 

Is this one of those systems that can only move one axis at a time? 

Hi Andy,

thanks a lot for your response. I will try it and buy the recommended MESA Board.

Yes, you are right, the tacho signal can be connected directly to the DC motor amplifier. I have only one amplifier for the 3 axes. So I can run them only in sequence.

I hope, I will find out how to interpret the inputs (TTL ?) from the Heidenhain EXEs.

Is there any chance to get connected to the LinuxCNC developer in Münster?

Best regards

Hartwig

Firehunter wrote:

Thanks for the replies. I guess updating Linux and LinuxCNC is the only option left.
 

Note that I don't actually expect that to fix this issue. 

Can you attach your HAL files(s)?

github.com/LinuxCNC/linuxcnc/commit/9783...cfdb5ea02cd0336145e6

I don't normally recommend PyVCP as it is not very flexible, but in this case it is probably a good choice.

linuxcnc.org/docs/stable/html/gui/pyvcp.html

The example panel in section 4.1 is very close, you would just swap the bar for a slider, and connect to stepgen.4.velocity-cmd instead of the spindle speed.

its easier if you use the threads we have stickied at the top.
unless the chip is a good clone, we dont support the GD line of clones. the lowcost hardware that will be the least trouble are the ones listed on the docs

You _probably_ don't need to take the tachos to LinuxCNC.

Typically the tachos connect only to the servo drives to feed back velocity, and the analogue voltage input from the controller sends a velocity command based on position feedback from the glass scales.

The Leinien FM1 looks like a lovely little thing.

An all-in-one solution from Mesa would be: store.mesanet.com/index.php?route=produc...id=397&search=analog
But there might be cheaper options (for example 6i24 + 7i33TA) but the 7i97T ethernet option will work with just about any supported computer, including the Raspberry Pi.

Other options exist. EtherCAT, Pico PPMC for example.

One of the LinuxCNC developers lives in Münster, I think.

Fleshing out the rest of the bits.
Found a nicer cheap 21" touch panel on waveshare, seems like it would work well as a vertical panel with qtdragon

Dear members,

a simple question. I hope, that somebody knows the answer and responds.

I would like to connect 3 Heidenhain glas scales LS303  and 1 Heidenhain rotary sensor ROD450 via the EXEs.

Thanks a lot in advance and best regards

Hartwig

Can you help with how to control the flow rate from a virtual slider pot on the AXIS virtual control panel.

Mike

simplex wrote:

But I'm more of a software / mechanical guy, so any advice would help

- DO IT!!!
- a lot of reading
- never wire everything and hope it just works, it won't
- do everything step by step, especially wiring and testing the electronics
- ask, ask, and ask again, we are here to help as much as humanly possible

I remember the time when Intel payed developers to make Linux boot in under 10 seconds...and some other nice memories (i do not mean RAM or ROM memories )
BTW, they did make it boot in under 10 seconds back then, even from a CD.

What were the results?