Downdraft design questions

rodw wrote: I know your ducting is done but I saw this pic on a machinery sale ad. And you can get spark arresters which are cool
www.nordfab.com/en/products/qf-ducting/s...b-in-line-spark-trap

Interesting. Almost all of the duct I bought is Nordfab brand.

Got the motor wired up to VFD. I filmed this while my my copilot spooled up the blower to full throttle... which occurs at roughly the 30 second mark in this video.

With the blower connected to the duct, and half of the blast gates open, it is pretty amazing how much air is moving through each gate. I am really excited to see how much goes through only one gate!

So the blower, duct work, and solenoids are installed and plumbed. The only thing left is to connect the solenoids to the Mesa card... of course that needs to be installed first. :ohmy:

As you can see my hobbies sort of collided on my workbench.


I did manage to get the power supplies, Mesa card, drivers, etc mounted up on Friday, and some wiring today, which I forgot to photograph. Tomorrow, if all goes well, I will connect the wires from the limit/home switches and motors and probably spend the rest of the day reading the documents on how to configure everything.

Those meanwell power supplies are great, I use them on my machine.

Hmm, I have a feeling you could use the 7i76e's spindle control to control the VFD motor speed. Just occurred to me!

rodw wrote: Hmm, I have a feeling you could use the 7i76e's spindle control to control the VFD motor speed. Just occurred to me!

That would be nice!

I will feel better when I get the gantry moving properly.

BTW you do not have enough hobies on that table !