Extruder external mounting kit – BCN3D Sigma

Extruder external mounting kit – BCN3D Sigma

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Keep your filament cool, mount larger spools and reduce noise..a bit with our Extruder external mounting kit for the BCN3D Sigma. This kit does not require alterations to the body of the Sigma as we have cleverly designed the parts to take advantage of the printers geometry. All parts printed in Emvio Chroma and Techna materials! STL’s free to Emvio customers, please ask!



This set of parts came about when a customer required an easier way of loading their filament on the BCN3D Sigma. Although there is a set of parts on Thingiverse to do just that, they do require a bit of work and take a long time to print. With everything we design for the Sigma, we strive to ensure any upgrade is reversible. A bit like car phone kits in leased vehicles, we find clever ways to fit bits in and secure them with the minimum of intrusion.

A customer has even modified the spool hangers to take 2.3kg spool!

There are two versions of the Sigma chassis and we will need to know which one of these you have. The easiest way to identify this is to measure the distance shown in the screen cap below.

If you are an Emvio customer, even if only purchasing a spool of filament before, we will share the STL files with you!

The kit consists:

  • 2x Spool hangers (left and right) that can accomodate our 1kg Chroma PLA or ABS spools
  • 2x Mounts that sit on top of the machine. The extruder arms and spool hangers mount to this
  • 2x locking blocks that restrain the mount laterally with the use of:
  • 2x T-nuts

Additional information

Weight 3 kg
Slot distance

22mm, 24mm

1 review for Extruder external mounting kit – BCN3D Sigma

  1. 5 out of 5


    i have this kit
    very easy to mount and the results in term of noise’s reduction, performance, reliability are great

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