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I regularly print tighter tolerances with an FDM printer (modified Makerbot Replicator 2). D-sub connectors just aren't that tight; if you were printing the pi

by daeken 12y ago

I regularly print tighter tolerances with an FDM printer (modified Makerbot Replicator 2). D-sub connectors just aren't that tight; if you were printing the pins themselves, it'd be different, but the plastic side of things is not an issue at all.

Animats 12y ago
For connectors where the pins are crimped to wires, then inserted into the connector block, the hole into which each pin fits has a complex form. It has to be shaped so that the pin clicks into place, but isn't pushed out by ordinary connector insertion forces. FDM extruders extrude a thread bigger than the tolerances required for that. Getting a longer D-sub connector and machining the plastic down is more likely to work. 3D printing isn't magic.