TL;DR E3D and Bambu unveil a HotEnd that allows you to print 60% faster with your Bambu X1 and P1 Printers. Read more to find out how it came to be, and to find out the full specifications!
Story Time
When we first got our hands on the Bambu Lab X1 printer, we were delighted by its overall performance and blown away by the speed of its motion system. However, as we started to push the printer to its limits, we found ourselves bumping into the melt flow rate limit of the HotEnd.
We had just launched E3D Revo High Flow off the back of some fastidious research into the perfect internal geometry to deliver maximum flow rates in small packages: it was obvious that we should try our hand at “upgrading” the X1. We designed a version of the Bambu Lab HotEnd that made use of E3D’s High Flow geometry, quickly manufactured the prototypes in our in-house workshop, fitted them onto the rather unsuspecting Bambu Lab printer that we had in the workshop, and delighted ourselves with the performance improvements.
We were able to hit flowrates >60% higher than standard, which enabled us to push the productivity of the Bambu Lab X1 to new heights. It would be an understatement to say: we were excited to be able to bring these improvements to the "Consumer printer of the year" (2023 3DPI awards).
When we visited Bambu Lab in July 2023, we took some of our samples along and left them with Dr Tao, we agreed that if the product lived up to our claims it surely had the potential to delight his users. To get the project moving, Dr Tao dedicated some highly proficient members of his team (including project managers and engineers) to help us bring a product to market that would meet both Bambu Lab and E3D’s quality standards and delights our customers.
High Flow + ObXidian!


An easy upgrade
“ …pushing the boundaries of what our printers can achieve” Dr Tao, Bambu Lab CEO - read more in his blog here.
The upgrade takes less than 5 minutes. Follow our quick and easy YouTube guide below!
Easy Identification of Variants
The E3D ObXidian High Flow Bambu Lab HotEnd comes in nozzle diameters of 0.4 mm and 0.6 mm. The Bambu Lab team supply us HeatSinks that are engraved to make it very clear which product is which, and to differentiate this product from the standard Bambu Lab HotEnd.
Listen To What The Content Creators Think!
In Closing
We are delighted to bring you this product, and hope it delights you as much as it does E3D and Bambu Lab.