Adjustable Height Funnel - 2x4 Mounted

thingiverse

Edit 2018-03-25: Added V2 of the upper slide, which extends the funnel out further from the 2x4 to accommodate larger bottles. Note that lumber dimensions vary. Models are designed for boards measuring 1.5" x 3.5", but some 2x4's are actually 1 3/8" x 3 3/8". I've uploaded solid models so you can adjust based on the lumber you're working with. If your board is sloppy in the base, I've included holes to screw the base to the board for added stability. Additional design changes I'd like to make include improving the rigidity of the base. It works well but could be improved with some additional ribs. This adjustable funnel was created for transferring used oil into bottles when servicing vehicles. A 2x4 is used as the vertical support, which isn't shown here. The upper slide/funnel assembly is held onto the 2x4 using 2-3/8" bolts that thread into captured nuts on the side of the slide, allowing various size oil bottles to be filled. The upper two parts (slide and funnel) are split to allow for printing on most printers. They can also be glued together easily.