May 7, 2022
Description
This round hay rack was a from-scratch design in Fusion 360. I'm not calling it a remix as it is a completely original design, but I would like to acknowledge both https://www.thingiverse.com/thing:3966189 (@CorrieD) and https://www.thingiverse.com/thing:4244943 (@GGREINER) from which I drew inspiration.
Compared to those models, my version is in 2 pieces. The base and bars prints as one piece and the lid prints as the second piece (print hole-side-up). I have tapered the tops of the bars and the holes just slightly for an easier fit given the large tolerances needed by some printers. I have hollowed out the base to save on filament and I have added chamfers to the bottom of the bars for extra strength. I have used an 8-bar design so that the guinea pigs have enough room to get their noses in to grab the hay but not their whole heads. One of ours had a nasty incident with a grass seed getting stuck in her eye so it's not great to let them get their whole head in there.
Original Fusion 360 design is available at https://a360.co/3gLNe4a should you wish to change any aspect of the design. If you do remix it, please drop me a comment as I'd love to see your work.
The design fits easily on the bed of an Ender 3 printer even when a skirt is used and is about two thirds of the height. Overall dimensions of the base (the largest part) are: 150mm diameter by 166 mm tall.
My design is completely free to use without restriction. Have fun and I hope your guinea pigs like it. COVID-19 has meant that I have some time to work on designs and projects but it has also meant that my income has fallen off a cliff due to lost business, so if you can afford to send me even a modest tip, I would be most grateful. Every little helps!
Printer Brand:
Creality
Printer:
Ender 3
Rafts:
No
Supports:
No
Resolution:
0.2mm with 0.4mm nozzle
Infill:
10% gyroid
Filament: Sunlu PLA+ Pure Yellow
Notes:
Print settings are not critical. Consider using "Archimedean chords" as your top and bottom solid infill if you are using Prusa slicer, it is easy on the printer and looks nice.
Be careful handling the base after printing as the bars are vulnerable and easy to snap off until the lid is in place. I suggest fitting the lid before cleaning up any strings (etc.) on the bars.Post processing
There's not much to do other than clean up any strings or blobs on the bars. Fit the lid as soon as possible as the bars are quite vulnerable and easy to snap off until the lid is in place and supporting them. I printed the lid first so it was there ready when I needed it.
You can glue the lid on if you prefer, but I chose not to. The bars have a 5° chamfer on the end to allow easy insertion into the lid and once they're all seated, a gentle tap all around with a plastic hammer or object should seat it firmly, while keeping it removable later if you need to.
License:
Creative Commons — Attribution
Timtek
