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Old 4th June 2015, 06:56 PM
MTA MTA is offline
Join Date: Apr 2014
Member of: MAD
Location: Essex
Posts: 82

Delrin spring guide possibly ? Its coefficient of expansion is greater than the steel in the spring so if the tolerances are too close it may stick when it warms up. My V-Mached HW97 had similar probs.
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