cotter pin for push-fit
thingiverse
A secure connection between my PTFE tubing and extruder is crucial, so I designed a cotter pin for push-fit use specifically with delta printers like my Mini Kossel. When printing for 45 minutes without issues, it's jarring when the tubing pops out due to pressure. Fortunately, filament still prints well as long as the cotter pin stays in place and holds the connection firm, keeping print integrity intact while the PTFE maintains a secure fit within my extruder assembly during extended operations like this recent session where nothing came to fruition due to equipment malfunction rather than design shortcomings; therefore the process can be retried.
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