Advanced Search

+- velocity values are not possible in counter mode unless you have noise on the "B" input

Try jumpering the "B" input for single ended mode
(and make sure nothing is connected to either "B" input at TB2)

 

No and not planing to, the "influencer's" keep forgetting to tell us just what headache that is. It fails, a lot.
As it is, using the USB is enough liability, adding another set of comms is really asking for trouble.

40VDC is enough
57VAC is enough
Start wiring stuff, build the machine, make chips,...

yes! built with canbus. saves a lot of cables and is easy to implement.

For time like this, I generally make a now config  with pncconf with some rough settings. Once you see movement, then cut and paste stepper settings and pins from your old config.

>Halshow has the reading fluctuating from about -3650 -> +3650 with no plasma source having power.
you have a 0 volt frequency of 3637 in you system so 3650 is expected. The swings are not
There is something not right in hal, like you have a double ended encoder or something.

my1987toyota wrote:

There is rumor of Big Tree Tech making one, but that is still just a rumor.

Thats the one!
biqu.equipment/products/bigtreetech-pand...fP0vAWLH50KrWga94hgp

tommylight is this just more of the test?

If you don't want to stick to Ethercat drives for all axes, really you should not have gone down the Ethercat route. Rtelligent and others have closed loop Ethercat stepper drivers. I would get a couple of them. Leadshine and Rtelligent also have open loop drives that control 2 x steppers in a single drive.

Rtelligent and Deiwu both have more affordable Ethercat I/O options

Thanks for the answer but I wasn't referring to how to use and2, hahaha.

I was referring to the limit3 component when the limit3.enable hal pin is set to false the output goes to zero, in case of connecting the and2 output to the limit3 enable if you write a measurement to the limit3.in hal pin and press the buttons you may need to release the buttons during the movement, at that moment I need it to stop as quickly as possible but not to go back to zero, or better yet you can press the buttons and reach the measurement and then when you release them you go back to zero, hahaha.
It may be that some applications require going back to zero but not all, imagine a measuring stop on a saw, or a double head miter saw, no interpolation in this case it is necessary that when you give a measurement you move the joint to go to the measurement and stay there or if you release the buttons in the middle of the movement it stops and when you press them again the movement resumes, this is what I am referring to.

I have now achieved this behavior, I have had to make changes in the limit3 component, in how the enable is interpreted with respect to the measurement, later I will upload the modified component in case anyone wants to take a look.

As always, greetings and thanks to everyone.

The DM556 will be fine at 57 volts AC
I have drivers rated or 65v AC and have run them at 64V and had to pay attention to other parameters as that was so close to the max.
So next time I ran them at 60v AC and then finally found the manufacturers specs which I think said 55 volts was recommended!

As far as DM556 goes, 40 volts is probably OK too. It is possible to calculate the maximum voltage to achieve specific performance. A friend developed a spreadsheet that does this. In a recent design for  2 amp Sanyo denki steppers, it only required 38 volts to achieve 60m/min rapids and 5 m/s/s accelleration on a 29kg gantry. But that was after some trial and error with gearbox ratios and pinion diameter to get to the sweet spot.
 

the 2.9.4 image or the Pi 5 has been released and is on the Downloads page. It includes the 6.12 kernel which has been built from the official Raspberry Pi kernel source
 

What I don't get is that the change from Silicium (wrongly named as it was thought to be a metal) to Silicon predate Mendeleev's periodic table (actually this happened in 1823 and Mendeleev was born in 1834).
ISO publications refer to as Silicon.

I think it was either 2023 or 2024 that the Z80 finally went out of production.

Regarding the 555, most of the younger generation would probably grab an Arduino to flash an LED and think they are an electronics expert.

I truly think that the Arduino and it's ilk have "dumbed down" electronics as a hobby....oh hang on, we must call them "makers" now eh.

On no history is great, even recent history, tho Vale can't seem to get over it and still has to dig at Marc.