Downdraft design questions

Not what i want for sure, i have to use what is available locally, usually soft 4X1.5 and 4X2.5mm2, or 5X for plasma as i also use the ground wire for well grounding the machine parts.

Got it.That raises another good question. What exactly do you ground?

I have a ground rod outside my building that is isolated from everything else. There is an insulated wire that connects the ground rod to the table, via a threaded bolt on the table frame. At that bolt there is a another, smaller wire that connects to the gantry.

The plasma unit is always connected to the plate itself when I am cutting.

Is that sufficient?

That should do, but i also ground everything in the control box, so i use the extra motor wire to ground a part of the machine after bearings, meaning each moving part of the machine has a ground so it does not rely on the bearings to be grounded.
And in general, the signal wiring should be grounded only on the electronics side, not on both sides.

That makes perfect sense. I appreciate it!

rodw wrote: To go live, copy ddraft4x2.hal to your config folder and edit your ini file in a text editor (I use Geany!) and add it to the [HAL] section

This part requires the installation of Plasmac, correct?

I am still getting my base machine setup, as the instructions are pretty clear about getting the base machine dead-nuts before proceeding to Plasmac.

txtrone wrote:

rodw wrote: To go live, copy ddraft4x2.hal to your config folder and edit your ini file in a text editor (I use Geany!) and add it to the [HAL] section

This part requires the installation of Plasmac, correct?

I am still getting my base machine setup, as the instructions are pretty clear about getting the base machine dead-nuts before proceeding to Plasmac.

You can do that now and plasmac should leave it alone. Note I uploaded a revised sketch of how to wire in the solenoids on your other wiring thread. The band on the diode points towards the mesa output. Pretty much any diode will do IN4004/IN4007 etc are as cheap as chips.