Tiny New "TB6600" Stepper Driver Heatsink

[KimPrzybyla]

The (already too small) heatsinks on the cheap "TB6600" stepper drivers have recently shrunk down to almost nothing. Old (left) vs. those received within the past week from several sources.

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[CitizenOfDreams]

They still look OK for a single TB6600 driver. Unless the power chip is overheating, I would not worry about the "new and improved" heatsink.