Update: my coolant pump quit 40 minutes into a 6 hour run on the VF-2, and a $3 hose clamp saved the job
I heard the pump getting quiet around 2pm in my shop outside Fort Wayne, found a cracked fitting spraying coolant down the back of the machine, and clamped a spare chunk of 3/8 hose over it just to finish the cycle, which got me wondering what small fixes you all keep on hand that have bailed you out mid run.