PAX 3 tools
thingiverse
Pax 3 funnel and packer. snug fit into pax. Print with 3 walls for both. No need for support at all, You can add some for the funnel if you want a nicer finish. I've printed mine with 0.6 nozzle and 0.48 layer height and everything is fine, So 0.4 dimensions should work either way.
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