I have read a few posts where people are concerned about the temperature rise of the spindle motor especially when running for long periods under load. I recognized early (even before I switched the machine on) that due to the enclosed design the spindle motor would operate at higher temperatures than desirable. There is one golden rule with electronics and that is lower operating temperature = increased reliability.
As soon as I received my machine I stripped it and added quite a few modifications aimed at increasing reliability and some niceties that I wanted. This post is restricted to explaining my modifications to improve the cooling of the electronics enclosure at the rear of the machine and the spindle motor.
I have attached a zip document which explains all.
Regards
Chrisjh