ESC box almost done! Pretty happy with the upgrades to the CNC that helped it cut aluminum so well. Box will bolt down to a slingshot mast base with the inside holes and mount on the board with the outside holes.
Yeah I see what you mean. I think with the amount of aluminum between the ESC and board I got a pretty good thermal mass before it gets too hot, but I’ll be monitoring that for sure. Just have to stay on foil for 60 minutes without touching down to hit the worst case!
On my old board with an arc200, I hardly had any aluminum exposed and the temps always were always in a good range.
Not sure what I would recommend for a smaller CNC. The cost at least for the style I got isn’t that much between a smaller or bigger one. Some people have luck with the china 3020 or similar, but maybe there is something better out there now for that size. All depends on what you want to do!