IDEX Upgrade for MM3 & MTW Create

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  • Regular price $444.95

Upgrade your MendelMax 3 or original MTW Create to Independent Dual Extrusion!

Independent Dual Extruders greatly simplify the process of printing  with multiple colors or materials in the same print. No more hassles with leveling your hot ends or ooze from the second extruder causing your print to fail.


  • All new X Axis featuring a recirculating ball bearing linear rail.
  • Brushed Stainless Steel Construction
  • New, improved Firmware
  • Reuse your existing extruders and hot ends, or upgrade to our all new BMG Dual Drive extruders and MTW Mercury Hot Ends. 
  • X, Y and Z travel should be similar, but the exact travel may vary slightly compared to the stock printers.
  • A Raspberry Pi is required for operation. 

Frequently Asked Questions

Q: I have a Create that came with a Raspberry Pi. Do I need another?

A: No. You need a single Raspberry Pi that is used to run OctoPrint and the new Klipper firmware that is required for the IDEX Upgrade. It runs on a Pi 2 or above, however things like compiling, and page load times are considerably faster on a Pi 4. These are not enough benefit to buy a new controller if you already have a Pi, but we recommend a Pi 4 if you are buying a new one. 

Q: Should I upgrade my extruders?

A: There is no real need to upgrade your extruders, however these new dual-driver extruders do offer more reliable extrusion and are pretty jam-resistant. We mainly offer them for people who are upgrading from a single-extruder printer, and need to purchase the second extruder, but if you wish to upgrade you are welcome to!

Q: Should I upgrade my Hot Ends?

A: Our new MTW Mercury Hot Ends have two big benefits: 1) They make nozzle changes much easier. It takes just a minute or two to change your nozzle. 2) Because they require much less aggressive cooling than the E3D V6 does, you can turn the fan speed down on the hot end cooling fan, which greatly reduces the printer noise. 

Q: How long does the upgrade take? 

As always, this question is highly-dependent on you. I would guess that the average person can complete the build in under four hours. If you did choose to upgrade the extruders and hot ends, you can complete the vast majority of the upgrade before you ever need to touch your existing printer. I would guess the actual installation will take 1 hour with the new extruders & hot ends, or 2-3 hours if you are upgrading using your existing extruders & hot ends due to the more involved wiring.  

Q: I only have a single extruder, will this work for me?

A: Absolutely. You will just need to purchase the second extruder and hot end. You can mix and match the new extruders with the old, so if you have a MM3 that ships with the Left extruder standard, you will need to purchase a right extruder plus a new hot end. If you have a Create that shipped with a Right extruder standard, purchase a left extruder and hot end.

Q: Does this replace the Rambo?

A: No, the upgrade includes a secondary controller that adds on to the existing electronics. The Klipper firmware synchronizes both boards.

Which Hot End?

You can select a different hot end for each extruder, so choose the best mix that fits your needs. Both choices ship with a 0.4mm nozzle as standard.

MTW Mercury: The new MTW Mercury hot end offers a number of benefits including simplified assembly, much easier nozzle changes, improved thermal performance, and improved high heat printing capabilities. It is compatible with all E3D V6 nozzles. This is the hot end that we recommend for most users. 
MTW Mercury Plus: The MTW Mercury Plus hot end offers all the benefits of the MTW Mercury, but in a high-flow configuration. It is the best choice for high speed printing, especially with 0.6mm or larger nozzles (we stock up to 1.0mm, but up to 1.8mm are available from other suppliers). It also works fine with smaller nozzles, however you will get more stringing and ringing/echoing than you will with the standard flow hot end. The MTW Mercury Plus is compatible with nearly all filaments, however we do not recommend it for Flexible filaments. We recommend the standard MTW Mercury instead.  The MTW Mercury Plus is compatible with all standard E3D V6 nozzles. No special nozzles are required.  The MTW Mercury Plus is perfect for anyone interested in high volume production printing. 


Raspberry Pi Options

A Raspberry Pi is required to use the MTW Create Mini. Because of the Raspberry Pi's pricing policies, you should consider buying your own Pi directly from any official Raspberry Pi reseller. We can also provide one for you if you wish. We recommend the Raspberry Pi 4 for best performance, however it is compatible with the Raspberry Pi 2 and above. We do not recommend using the Raspberry Pi Zero.

All required software is available to download for free. It takes about one hour to install and configure the Software and firmware. You can read the instructions to do so here. It's not difficult, and we recommend you do it yourself, however we can install it all for you if you wish.

We will download and install the latest version of OctoPrint, several recommended plugins, and configure the firmware for you. There are a couple steps that can only be completed once the Pi is installed in your actual printer, but we will take care of everything else, and we are happy to walk you through the final steps when your printer is ready.