MK6 Stepstruder cooling mod for PLA
thingiverse
The original text had issues with PLA melting near the drive gear due to heat conduction through the stainless steel pipe in TOM printer. The user tried using heat sinks made from coins, but the problem persisted during long prints. To address this issue, a 40mm fan was incorporated into the Stepstruder support design to blow air directly onto the SS pipe, resulting in a reduced temperature of 26C and preventing PLA melting. The user also recreated all acrylic parts due to superglue sticking them together. These parts are laser cut from 5mm acrylic, with counter sunk holes and M3 x 30 CSK screws and nuts used for fan attachment. The fan was hard-wired to the 12v supply, but could alternatively be wired to the EC board's FAN output.
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