While installing homing switches on my TravelCNC,
I replaced the broken component in the spindle driver that only allowed to run at full speed anymore.
Result is...the spindle controller is now fully broken.
So currently I'm looking at getting a new 600W spindle+controller from China or to invest a lot and get a spindle with automatic tool changer, controller box and silent, portable 8 bar compressor.
That would be a huge and great upgrade but I'm reluctant to shell out that kind of money right after ordering an Ultimaker 2 for 2000eur. :/