This 3d printed cone replaces the autotrickler straw, which was always a pain for me. I never found a perfectly matching straw (and I tried a lot, big M, sbwy, some from the shop, etc) and there was a lot of powder spillage due to the falling height of the powder. This uses the bayonet lock library and basically puts a hull around two cylinders in openscad to get a cone with offset. It's two parts, one attaches directly to the Autotrickler.com A&D FX120i mount. The funnel then locks onto that via bajonet. The Bayonet Lock Connector is from the OpenSCAD library (http://www.thingiverse.com/thing:3471896) by xavierasx, licensed under the Creative Commons - Attribution license.
http://creativecommons.org/licenses/by/3.0/

If the bajonet lock is too tight on your printer, increase the "gap" value in the openscad file.

https://youtu.be/MTptcABnJ2o

Just added a new version, improvements:

• bigger screw holes, they were too small
• countersunk screw holes