E3D Help Centre

Bambu Lab Support: X1/P1 ObXiDian 500 High Flow HotEnd

Table of Contents

Summary

  • Maximum Operating Temperature: 500°C
  • Filament diameter: 1.75mm
  • Maximum ambient printing temperature: 60°C
  • Compatible with: X1E, X1 Carbon, P1P, P1S

Please Note:

ObXiDian 500 nozzles are exceptionally wear resistant compared to other products on the market and significantly outperform other hardened nozzles. Improvements in ‘exotic’ engineering filaments mean that some new materials which include aggressive fillers, including but not limited to Polymaker’s Fiberon range, can cause significant wear on even ObXiDian 500 nozzles. E3D is actively developing even more specialist solutions for these materials. In the meantime please be aware that your ObXiDian 500 nozzle will not be everlasting under extreme material conditions. 

Some filled materials contain particles that are close to, if not larger than, some of the smaller industry standard nozzle sizes, including up to 0.4mm. Attempting to print such materials through these nozzle sizes significantly increases the risk of a jam. Please check your filament manufacturer’s datasheet for recommended minimum nozzle orifice diameter to ensure that the nozzle/HotEnd you choose is suitable for your use case. 

Upgrade Guides

Assembly Guide

Your upgrade kit will have the following components:

  • 1 x Bambu Lab High Flow ObXiDian 500 HotEnd 0.40mm or 0.60mm
  • 1 x Thermal Grease
  • 1 x Bambu Lab Sock
  • 1 x Bambu Lab Heater Retaining Clip
  • 2 x Bambu Lab Bolts

During this upgrade, you will need:

  • 1 x 2.0mm hex key

Note: Make sure to apply the thermal paste on the nozzle, especially where the heater and the thermistor cartridge's hole are located.

  • Disassemble the stock Bambu Lab hotend by following the official Bambu Lab guide. Carefully remove the electronics as you will need them for this upgrade. 
  • Add some thermal paste into the thermistor hole.
  • Insert the thermistor cartridge in its allocated hole, and pass the wires through their channel on the heatsink. 

High Flow ObXidian™ E3D HotEnd has a different location for the thermistor cartridge's hole compared to the stock one due to the High Flow technology. 

High Flow ObXidian HotEnd for Bambu Lab X1/P1 Series

Stock Bambu Lab HotEnd for X1/P1 Series

  • Apply thermal paste to the side of the heater pad that contacts the block to ensure effective thermal transfer.
  • Place the heater on the nozzle, and pass the wires through their channel on the heatsink.

  • Place the Bambu Lab heater retaining clip around the heater and the thermistor wires. 
  • Be mindful of the retaining clip's orientation so that you don't damage the thermistor wires!

  • Put on the Bambu Lab Sock.

  • Place the fan on the heatsink and tighten both screws using a 2.0mm hex key. 
  • Be aware of the fan's orientation; the sticker should be inward!

 

Install the High Flow ObXiDian 500 HotEnd by following the official Bambu Lab Guide 

 

Printing Profiles

High Flow ObXidian slicer profiles

Volumetric Flow Rates

Nozzle Diameter  Filament and Temperature (°C)   Volumetric Flow Rate (mm³/s)
0.40 PLA 220   29
PETG 240   32
ASA 260   35
PC 275   33
0.60 PLA 220   36
PETG 240   42
ASA 260   34

Flow Rate Comparison Chart

Filter by Filament Type:

Filter by Nozzle Diameter:

Slicing Guidelines

Without changing any settings the E3D ObXiDian 500 High Flow hotend provides a smoother more reliable extrusion experience, however to make the most out of the increased volumetric flow rate capacity there are some slicing considerations to bear in mind to get the most out of your new setup.

The simplest change to make is simply increase the volumetric flow rate limit of the filament profiles and let Bambu Studio handle the rest. Bambu Studio will calculate the speed of the perimeter and infill moves in order to never print above this set limit so by increasing it to an E3D suggested max limit you will see a decrease in overall print time without any extra printer setting changes.

  1. Select the closest generic filament profile, then select edit.
  2. Enable advanced mode.
  3. Overwrite the max volumetric speed value based on our recommended max values.

Cleaning Guidelines

Recommended cleaning methods

  • Nylon cleaning filament (internal cleaning method)
  • Warm pull (internal cleaning method)
  • Cold pull (internal cleaning method)
  • Brass brush (external cleaning method)

Non-recommended cleaning methods

  • Needle (internal cleaning)
  • Steel wire brushes (external cleaning methods)
  • Blow torch (internal/external cleaning method)

Compliance

Bambu Fan compliance

Frequently Asked Questions 

  • Will the high flow products actually reduce my print time? 

  • Print time reduction is affected by many variables, including the part you are wanting to print. In most cases using our premade slicer profiles you should see a decrease in print time – however if you are printing very small, detailed models with little to no infill you may not see a dramatic decrease in print time as we prioritise maintaining high visual quality in the outside perimeters. 

 

  • Should I choose the ObXiDian 500 Version or the ObXidian version? 

  • This comes down to a question of longevity and intended use case. To give a comparison, ObXiDian 500’s wear performance is increased over ObXidian by at least a factor of five so it will last much longer and therefore need swapping out a lot less often. Also, a lot of popular abrasive materials simply won’t wear an ObXiDian 500 nozzle whereas they would eventually wear an ObXidian nozzle (albeit slower than a hardened steel nozzle). Also, the printing temperature of the ObXidian variants are limited to 300°C whereas with ObXiDian 500 you can print up to 500°C (depending on the maximum temperature of your printer). 

 

  • Will the nozzle ever wear? 

  • Yes, given enough time the nozzle may exhibit wear, but will do so considerably slower than a Hardened Steel nozzle. Expected product life is difficult to quantify due to the numerous variables involved, including base polymer, additive, brand, temperature, and print speed. 

 

  • Does this void my warranty with my printer? 

  • No, Bambu Lab have collaborated with E3D throughout the development and has officially approved the use of these products. 

 

  • Can I still print with normal filament like PLA? 

  • Absolutely! Even using the standard print profiles, you will notice more consistent visual consistency due to improved thermal performance and flow boosting of the high flow variants, enabling you to have stronger, better-looking parts. 

 

  • What’s the benefit of this product if my printer doesn’t actually reach 500°C? 

  • You will always be restricted by the maximum printing temperature of your machine (320°C for X1E, 300°C for X1C, P1P & P1S). However, even printing at lower temperatures you will still get all the other benefits of the product such as the extreme abrasion resistance which enhances longevity, and the non-stick coating on the nozzle which makes it easier to clean and reduces plastic build-up/print defects.