note
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Before placing an order, please check your country's policies and regulations on online shopping taxes.
The amount you pay does not include tax and you will need to pay it yourself.
To purchase a tax-included products, please click the link below:https://trianglelab.aliexpress.com/store/1654223
If you want to buy PRUSA I3 MK3S Full Kit.
Please click here to buy.
If you want to buy PRUSA I3 MK3S Bear Full Kit.
Please click here to buy.
If you want to buy Einsy Rambo 1.1b Mainboard.
Please click here to buy.
*Recommend a very fun upgrade module.Prusa I3 MK3/MK3S Upgrade print Quality improvement DDB extruder.
Please click here to buy.
https://www.youtube.com/watch?v=G-UF4tv3Hvc
Important notice:
1.Please read the details page carefully to find out the kit's composition list. And choose the right kit option. If you want a complete set of modules. Please choose the third option.
2.The 3D printer material in the second and third options is PETG. PEGT is more rugged and durable than PLA. But PEGT is harder to print than PLA, and we do our best to improve the print quality of PETG. If you are looking for perfection, please choose the first option and then print it by yourself.
3.If you choose to print the parts by yourself. Please download the model drawings at the address below. In addition, we should express our sincere gratitude to the author of this print open source.
STL:https://www.thingiverse.com/thing:3754163
NEW:https://www.prusaprinters.org/prints/17584-bondtech-DDB-prusa-mk3smk25s-v2-fdm-printable-rhd-
4.Due to the different assembly quality of each client machine. The level of customer skill is different. We can't guarantee that every player will get an improvement in print quality. If you can't clearly understand this. Then please stop the idea of buying this product. Because this will not bring you fun.
Product description:
This extruder upgrade are for Prusa MK2.5 or Prusa MK3 where you already have the dual Drivegears. This kit contains the necessary parts to convert to extruder with 3:1 gearing ratio for better precision and resolution together with optimized geometry for the heatsink cooling and many other cool features.
Hybird stepping motor specification:

1.8° NEMA17 23mm Stepper Motor
NEMA 17
Number of Phase 2
Step Angle 1.8° deg.
Rated Voltage 5.5V
Rated Current/Phase 1A(Peak Value)
Phase Resistance 5.5Ω±10%(20℃)
Phase Inductance 6.7mH±20%(1kHz 1V RMS)
Holding Torque 2.0 kg.cm
Insulation Class B(130℃)
Weight 0.15kg
Kit option description:
Option 1:23MM PanCake stepper Motor + Motor Gear + DDB SHAFT ASSEMBLY GAER + DDB THUMBSCREW + Needle bearings + Filament sensor +hex wrenchs+ Screw kits + Magnets + Steel ball+Pneumatic connector
Cautions:printed parts and dual drive gears are not included in Option 1
Option 2:23MM PanCake stepper Motor + Motor Gear + DDB SHAFT ASSEMBLY GAER + DDB THUMBSCREW + Needle bearings + Filament sensor +hex wrenchs+ Screw kits + Magnets + Steel ball +Pneumatic connector+Printed parts
Cautions:dual drive gears are not included in Option 2

Option 3:Complete set of print head modules(Includes PETG Print Kit)(24V hotend)
Photo display:

