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Collective SPM*

All this work and effort was produced by my Patreon, Petr. He took the design and broke it down to enable users of the smaller Ender 3 bed (220 x220mm) to produce the parts.

*Small Printer Modification

This mod is included in STL and CAD versions and can be downloaded or re-downloaded from the webshop. Petr's direct link for download can be found here:




A massive thank you to Petr for doing this. Also, the unit looks great with the frame in Black and excellent print quality.


Kind regards, Karl.

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4 Kommentare


Matt 407
Matt 407
25. Aug. 2023

What about the Ring Gear? I have an Ender 3 S1 Pro, only bought this collective model because the SPM existed (no interest in purchasing another printer just to make this). Now I'm a bit stuck unless I want to dive in and redesign the mechanicals of this thing.

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lewisbrooks69
lewisbrooks69
07. Feb. 2023

I also want to think peter as well.

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OZ Flyer
OZ Flyer
01. Feb. 2023

I also thank Petr for this work on this mod for us simmer with only 220x220 printers. Any chance Petr may be working on a Heli Cyclic mod for 220x220 printers?

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Petr Medek
Petr Medek
02. Feb. 2023
Antwort an

Yes, when I have the collective done I'll move to cyclic and do similar modifications if needed. But one correction: it's not 220x220 ready. I have Prusa MK3s which has 220x250. I had to split base as shown in the pictures and it probably fits 220x220 now. But side frames LHS and RHS have only small modifications of one dimension to be under 250mm. They are definitely over 220mm.

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