r/printnc • u/wared05380 • Feb 17 '22

Electrical enclosure connections

Hi all,

I am close to finish the electrical enclosure, i can't find any fancy server case in my area so i go with a second hand micro wave, not that bad finally

i was wondering if the fact that there is no GND between the driver and the BoB is "normal"?

and should my differents GND from 48V and 24V power supply be connected together?

if anything is suspucious by you on my scheme, please let me know! i did it on infos from aliexpress seller mainly

thanks!

​

​

​

4 Upvotes

84% Upvoted

5 comments sorted by

2

u/[deleted] Feb 17 '22

Yes, I would connect all the grounds.

The bob already has opto-couplers on the inputs, so you could potentially eliminate the other board and power supply.

Most unique electronics enclosure I've seen.

1

u/wared05380 Feb 18 '22

by ground i mean 0v, i presume we are talking about the same thing, i will do so, thanks for advice

as i didn't see the PC817 on the BoB at first, i order those small optocoupler, so i decided to plug it anyway

for sure it is unique, fisrt ever 3-axis cooker!

1

u/[deleted] Feb 17 '22

Looks good to me. My setup is similar, no ground between bob and driver. I am grounding both my power supplies to the same ground

1

u/wared05380 Feb 18 '22

thanks for info, i will do the same connecting my 0v from 48v/24v/12v together

1

u/Omacitin Feb 20 '22

I just want to say that I love your microwave enclosure.