Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

E3D Cyclops adapter for FlashForge Creator Pro

by DataDink, published

E3D Cyclops adapter for FlashForge Creator Pro by DataDink Jul 26, 2017
1 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps

Design Tools


A part of these Groups

View All

Liked By

View All

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag


Thing Statistics

702Views 38Downloads Found in 3D Printer Extruders


This is a direct-drive adapter that will fit the FlashForge Creator Pro printer with the E3D Cyclops extruder.

WARNING: Do not perform this upgrade on your primary or sole 3D printer. It is difficult to undo. This upgrade is done AT YOUR OWN RISK.

I got mine here: https://www.amazon.com/gp/product/B01JVTUDSY
IMPORTANT: Ask for the 24v version - read the tiny print.

I can confirm that this extruder will work with the Creator Pro, but requires a lot of maintenance. Material mixing technology is still very experimental and that includes the Cyclops.

Expect a lot of clogs and cleaning.

Print Settings

Printer Brand:












IMPORTANT: Infill density should be set to 100%

I printed this using HatchBox ABS: https://www.amazon.com/gp/product/B00J0H8EWA

Extruder Temp: 210
Bed Temp: 70
Brim: 5mm, 2 layer


Step 1

Print the adapter. Clean off the brim (if used) and break off the support under the center fan screw holes.

Step 2:

Disassemble the printer carriage keeping the feeders, thermocouples, fans, heating modules and all screws.

Insert two of the smallest screws into the bottom-inner screw holes as shown below.

Step 3

Remove the right thermocouple from its threaded casing. I did this by heating it to a very high temp with a soldering iron. The thermocouple should come out when the glue holding it loosens.

NOTE: If the existing thermocouples are worn & used like mine you can get a new one: https://www.amazon.com/gp/product/B00QKQ8G0E

Once removed from its casing replace the thermalresistor that came with the Cyclops. You wont need this and it can be discarded.

You can tie-off and retract the left thermocouple into the printer's casing if you want but you must leave it connected.

Step 4

Remove the left heating module completely from your system (you will need to open the bottom of your printer for this. Its wires are screwed onto the board and are easy to remove.

Clip the wires of the right heating module at the component end so you can connect them to the heating module of the Cyclops.

IMPORTANT: When ordering the Cyclops you MUST specify the 24v version. If, like me, you did not read this tiny bit of print you can order a compatible module (and a few spares) here: https://www.amazon.com/gp/product/B00SUYVLYC

When you've done this connect the Cyclops heating module. I used and recommend using wire nuts for this. Make sure you make the connection a good distance from the actual extruder.

Step 5

Clip two lengths of PTFE tubing. Your goal is these will sit flush with the top of the feeding pathway and extend all the way down into the Cyclops left & right chambers.

NOTE: Remove the bowden fittings from the top of the Cyclops. You will not need these.

Step 6

Connect the Cyclops to the adapter (feeding the PTFE tubing into the left/right chambers) using two of the long screws from the previous carriage assembly.

NOTE: Remove the bowden fittings from the top of the Cyclops. You will not need these.

Step 7

Mount the left/right feeders onto the adapter. The 2 screw heads you inserted into the feeders earlier should fit snug into recesses in the adapter. Use two of the medium screws from the original carriage assembly to secure the feeders in the outside screw holes.

Step 8

Attach the right fan and heatsync to the adapter as shown below.

I used screws here that measured about 3.35mm in diameter. They came from here: https://www.amazon.com/gp/product/B00CR8ZRC4

NOTE: You can remove and discard the left fan. It won't be needed.

At this point I recommend using zip-ties to secure all your wires and a couple of ties at the bottom of the adapter feet to ensure it doesn't split. I have provided an extrusion at the top of the adapter for securing things down up there.

Step 9

Attach the entire assembly to the carriage base from the previous assembly as shown below.

I used screws here that measured about 3.35mm in diameter. They came from here: https://www.amazon.com/gp/product/B00CR8ZRC4

That's it! You're ready to try this out!

Usage & Guidelines


  • Always keep two filaments loaded - even if you are only printing with 1
  • Always use filaments with similar print settings & tolerances
  • Favor low retraction settings
  • Do not use retraction when changing tools
  • Feed both filaments for a bit using the system tools before each print


Right-Side Only

Remember that this is a multi-feed, single extruder now. Your machine still thinks there are two individual extruders. I get around this by always setting my left filament heat to something low like 15 degrees and rely on my right heater and thermocouple to do all the heating work.

Avoid settings that wait for your left extruder to cool or stabilize.

Be super careful with retraction. There are open pathways between both materials now. You have to make sure material is loaded in both feeds to keep the other from backfilling molten plastic into it. This is going to be a huge source of clogs.

Material Mixing

Keep in mind that when switching tools now you have to always bleed the previous material out. Use a large prime pillar for this.

As software progresses there will be more options to actually use the mixing to create gradients. Currently I am unaware of any software that will provide this functionality for this upgrade.

More to come!

As I experiment more with this I will post new things that I find here.


More from 3D Printer Extruders

view more

All Apps

Upgrade this Thing with Thingiverse Apps

Print Fulfilment

Order a print of this Thing

3D print your favourite design with NinjaPrototype, a professional 3D manufacture with consistent quality and speed.

App Info Launch App