Wiring Diagram check

I have it powered by the USB port but it's connected to a 5A 5VDC PSU, don't worry :D

Also Jazz may I ask out of curiosity what tool you used to draw the connections ? :)

Quote:

---

Originally Posted by JAZZCNC

It's so you can power using an external source rather than USB and I suggest you do that. USB is unreliable and not to be trusted.

---

USB can't be trusted, but it isn't as bad as USA.:joker:

On a serious note, USB ports on a computer have a very low current sourcing capability.

Quote:

---

Originally Posted by cropwell

USB can't be trusted, but it isn't as bad as USA.:joker:

---

Go to bed Rob, you're tired :D

Quote:

---

Originally Posted by cropwell

On a serious note, USB ports on a computer have a very low current sourcing capability.

---

True, but you can still use the port if you power it with an external PSU :)

Quote:

---

Originally Posted by eurikain

True, but you can still use the port if you power it with an external PSU :)

---

I think with that board, if you put an ohmeter on the +5v pin of the USB socket, it shows it connects to the +5v screw terminal connector, so the USB way of supplying power to the board is provided for those who want the quick and dirty solution.

Cheers,
Rob

Why having a buzzer at all? When the limit switch is hit the motors will stop, so you'll notice the silence. When you push the Limit override you know you are pushing it...

Just curious about what is the point with the buzzer.

Because you don't "push" the limits override, you "switch" it. If it was a push button, you'd have to reach your keyboard or something that allows you to move the gantry off the triggered limit switch while you're pushing the override. However, a switch will stay in the same position, so you won't have the problem of reaching your keyboard, but instead you might have the problem of forgetting to switch it back to the "off" position, hence why a buzzer. It's not mandatory if you are very careful, but it's a plus for safety.

A limit override should in my opinion be a push button, not a switch. Of course, I know that a switch stays on as long as you don't flip it but that is not a good solution the way I see it. If reaching to it is an issue than the position of the location is wrong. But again, this is just my opinion.

I see what you mean :) That's right, it's a matter of opinion.

Hi Eurikain,

I have read through your post with great interest and it has answered many of my questions.
i was wondering if you have any photos of the control cabinet build yet?

Hello nairepooc,

Thank you so much for the compliment :) I do have pictures of the build but I won't be home until tomorrow evening, but once home I can post some pictures for you :)

All the best,
Eurikain.