Yup, the stl file is on github. I don't have a printer so I might just 2d print the file and make a spacer by hand.arber333 wrote: ↑Tue May 26, 2020 4:51 am
Nice job! Did i send you the 3D printing file for a cover spacer? I think i added it to github anyway.
I like how you solved the connection for voltage sense. I only recommend you twist the wires to make twisted pair connection. There will be 360Vdc in those wires.
Another consideration maybe? You need to connect the board to GND plane of inverter. Since you use a plastic spacer i would add one cable from GND on each board to the alu shelf and fit it with original screws.
Also take care to connect motor and inverter together with a braid or other kind of thick cable so potential is shared. I felt quite a jolt when i touched them unconnected.
I'll be sure to twist the wires. Rather forgot about that part. I ran out of red wire hence the blue
After getting a jolt from the inverter the other day I grounded everything to the frame of the car. Motor is already strapped to frame, now the inverter is along with phase cable shields.
I actually have the adapter board grounded to the aluminum shelf, with the original screws. (I do need some slightly longer ones, board is a bit squished).
Since my ESP8266 stopped behaving at all (won't grab info from the board anymore) I'm back to the USB-TTL converter. It's much nicer having a direct connection that doesn't depend on the chances of wifi and is protected from EMI.
Everything is looking good!
-Isaac