>finish 3d printed peristaltic pump
>realise the housing doesn’t have enough clearance for the bolts holding the rotor together
>make the motor driver circuit anyhow (using two CD4018 chips to generate the pulse order)
>just run it at low speed to grind away the interfering plastic
>gradually tighten the screws
This may not work, it’s taking ages and the motor stalls easy, and I don’t think I can increase motor voltage without it overheating.