Dual Flexion retrofit kit for dual extruder

Dual Flexion retrofit kit for dual extruder

Developed by the inventor of Ninjaflex

Flexible filament extruder retrofit kit for both left and right sides of a dual-extruder printer. Print fast with flexible materials, higher resolution, and fewer failures. Also prints ABS and PLA better than your stock extruder.

*Does not include stepper motor.

Printer type - Common Dual Extruder printers (Flashforge, Wanhao 4s, QiDi, etc.).
Fits all of the most common dual extruder printers – Flashforge Creator Pro, Powerspec Ultra, QiDi Tech, Malyan M180, Wanhao Duplicator 4s, CTC, etc.

Please note, the QiDi  and CTC stock extruders are NOT compatible, so you will not be able to mix your stock and Flexion extruder. Also for QiDi, the temperature sensor location is moved and will read 10-15° low, so turn your print temperatures down.

Printer type - Makerbot Replicator 2X
This option is ONLY for the Makerbot 2x extruder (shown to the left). It has a deeper cooling block and a wider mounting hole spacing (78.5mm).

Printer type - Right side only 
Right side only for Common Dual Extruder (Flashforge Creator Pro, QiDi Tech, Powerspec Ultra, etc.)

  • $249.00
  • SKU

3D printer extruder retrofit kit for dual-extruder direct-drive machines, such as the Flashforge Creator Pro, QiDi Tech, Powerspec Ultra, CTC Dual Extruder, and Makerbot Replicator 2X. The Flexion extruder will allow full-speed printing of flexible filaments and improved accuracy printing with PLA and ABS. The precision machined components allow your printer to push on filament harder, achieve high pressure in the nozzle, and control of feed rates very closely. The self-cleaning drive will keep your long prints from failing due to a clogged drive. Works will with Ninjaflex, Filaflex, flexible PLA, TPU, TPE ultra-flexible filament down to 50 Shore A, and all the standard rigid filaments like ABS and PLA.

The Flexion Extruder uses a high-stiffness lever to compress the filament. The compression is controlled with a cam and an adjust screw, rather than the traditional spring. This allows more tension and more precise control of the tension. 

This kit requires you to disassemble your printer’s extruder and reinstall this upgrade.

Works with

Flashforge Creator, Monoprice Dual, Dremel, Wanhao 4S, Powerspec Ultra, CTC Dual Extruder, and many others


Mounting block
2x Tensioning arm with idler and cleaning brush (one right and one left)
2x Adjustment cam
2x Drive gear
2x Feed barrel
2x Heater block
2x Insulation for heater block
6 nozzles – 2 each 0.3, 0.4, 0.5 mm orifice
2x Adapter shim to allow 6mm and 0.25″ heater cartridges
4 PTFE feed tubes
2 spare cleaning brushes
All mounting hardware
6mm and 7mm wrench for installing nozzles
"Flexion inside" quick-guide sticker

Note: does not include stepper motor or motor mounting screws

Weight1 oz
  • Manufacturer
    Diabase Engineering
  • Brand
    Diabase Engineering
  • Choose Printer type
    Common Dual Extruder printers (Flashforge, Wanhao 4s, QiDi, etc.) - $249, Makerbot Replicator 2X - $249, Right side only - $149

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