Offset Diesel Funnel for Versatile 256 or Similar Equipment (SCAD)

Diesel funnel to fit a 1985 Versatile 256. Probably also fits the ones made by Ford. I made this after working on the tanks and then trying to put 30 gallons of drained fuel (in jugs and buckets) back in the tanks. The fuel filler neck is at a shallow angle underneath the cab, so any normal funnel really won't work unless you put a hose on it and have some way of holding it. That's not really practical.

This two-piece design is necessary for two reasons. Obviously, the split design makes printing easier, but the bigger issue is that the filler neck is simply a tube clamped to a bracket. We need to use the slots so that the offset funnel doesn't just swivel upside-down due to gravity, but those slots will be in a random orientation on each machine. In other words, the spout needs to be clocked to match the filler neck such that the funnel hangs upright. Simply clock it and glue the funnel together.

Printed in PLA, 2 shells, no supports, but you might want to use brims.

When I printed this, the spigot on the funnel came out undersize by about 0.6mm on diameter. The error is not in the geometry file. It simply printed undersize. I've had similar issues with angled tubular prints like this coming out undersize -- I guess due to lack of support and heat entrapment allowing deflection/shrinkage during the print. I printed a thin shim to take up the gap when gluing. That's what the "shimerror" option and the extra STL is for. The given shim should nominally add 0.8mm to the diameter.

This isn't a very well-written model. It wasn't really meant to solve any problem other than mine, and I doubt anyone will ever use it, so I didn't bother with all the math that would have made it more universal. If you want to modify it significantly, good luck.