Building the RoboSavvy Universal Spool Holder

15 Dec


When you already own a 3D printer you can start buying products that come in two halves – one that is 3D printable and you need to make the parts yourself and another one that is with components that you cannot print. We have purchased the RoboSavvy Universal Spool Holder kit that essentially comes just like we described above as we wanted to have a separate filament spool support that is not directly attached to the 3D printer. The kit itself comes with all the metal parts that you need in the form of rods, nuts and bearings and the other plastic parts you need to print yourself – the STL files are provided (the parts in black on the photo above we have printed ourselves). The parts you cannot print are actually common items that you might be able to easily find in a hardware store near you, but you need to buy them separately and they are sold as a complete kit, so it is easier to acquire all that you need.


The Universal Spool Holder is designed to support two medium sized spools of varying lengths at once, and can be adjusted to support spools up to 21 cm wide, so pretty large ones. On the photo above you can see our fully assembled spool holder with a single MakerBot large 0.9 kg (2lb) spool of PLA material mounted on top of it, this leaves quite a lot of space for more than one more spool even if larger, and even though the spool is small in one end the holder remains stable and works well. It would’ve been nicer if we’ve had another 4 bearings and wing nuts in the kit, so that we could add the option for a third spool, but we can get them additionally anyway, so not much of a problem. The idea is that the spool holder is designed for medium and large size spools and you are most likely going to be using a lot of smaller size ones as well, so you are most likely going to need to add the option for a third spool to make it more useful anyway.

The RoboSavvy Universal Spool Holder is a nice and useful product that we liked very much and the fact that we needed to print some parts and assemble the unit ourselves is a nice addition for people who like us like this kind of stuff. While assembling the spool holder we have found out that there was a pair of hex nuts missing from the package, but we had some spare M4 nuts lying around, so we have quickly fixed that. Now what we only need to do is find some more 20x27x4mm bearings and print two more plastic middle parts on the 3D printer and we’ll have the option to extend the holder to three spools.

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