Parametric Bottle Holder for the Prusa Enclosure (FreeCAD)

What This Does

This is a bottle holder for the Original Prusa Enclosure. I use it for my Isopropanol, but you can also warm up your beer in it if you so desire. I don't judge.

There are two versions of this model: One with heat-set inserts and one with threaded M3 holes. The one with the inserts is obviously cooler, but if you don't have them, you can use the other model. I did never actually print the threaded version, so feedback is very welcome.

What You Need

In addition to the printed part, you will need two M3x5,7 heat-threaded inserts and two M3x8 screws. For the screws I used leftovers from the enclosure assembly, for the inserts I got me the ones from Ruthex. (https://amzn.to/4757Oqe)

The inserts are obviously not required when using the threaded-holes version.

Measures and Parametrization

By default, the holder is intended for a bottle with a diameter of 85mm. The mounting plate is 30mm high and contains mounting points that are spaced 60 mm apart. This fits in the lower corners on all sides of the enclosure.

In order to adapt this to other bottle sizes, you don't have to actually know anything about FreeCAD - you just have to modify a parameter and re-export your model.

Open the supplied file “Enclosure Bottle Holder.FCStd” in FreeCAD. In the project view on the left side of the screen, you will see one object named “Parameters”. Open that with a double click to open the parameters sheet:

Now change the value in the yellow field right of the label “Bottle Diameter” to whatever fits your bottle, e.g. “50mm”. If you click on the tab “Enclosure Bottle Holder” below the spreadsheet, you'll automatically see the updated model. If, for example, you change this value to “50mm”, the output will look like this:

Now make sure that you select the entry “Final Model” in the panel on the left side. The whole Bottle Holder will be highlighted now. Choose the menu entry “File/Export”, choose “stl” as output file type and save the file. Now you have an STL with your parametrized object you can import into your slicer.

Printing Hints

I printed this with Prusament Galaxy Black PETG, but PLA will absolutely do. If you use the heat-set inserts, you can probably print this as coarse as you like, but the threaded version will definitely work better with lower layer heights. I personally used 0,15mm layers as I wanted the thing to not look like some cheap chinese print bought from a shady Amazon Marketplace dealer.

Fishing for Compliments

If you print this, please publish a make - even, maybe especially, if you don't like the model. Any feedback is appreciated and I will try to make adjustments if you find a problem with the model.