Guide · Mechanical upgrades
Bambu Lab P1 and X1 hotend upgrades: Panda Revo and CHT numbers
Which Bambu printers BIQU lists for the Panda Revo, its stated flow and conditions, CNC Kitchen's X1/P1P flow and strength numbers, and what we could not confirm.
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Picks that fit
- Micro Swiss FlowTech hotend for Bambu Lab P1P / P1S (M3109P)Check price on Amazon
Short answer
BIQU lists its Panda Revo hotend for the Bambu Lab P1P, P1S and X1C, and states 40 mm³/s under its own test conditions. CNC Kitchen's one X1/P1P setup showed the stock hotend at about 23 mm³/s and a genuine CHT nozzle at about 32. Bambu's own hotend pages could not be read, so we make no claims from them.
Picks that fitAll picks and how to choose
- Micro Swiss FlowTech hotend for Bambu Lab P1P / P1S (M3109P)Check price on Amazon
What BIQU lists for the Panda Revo
BIQU lists its Panda Revo hotend as compatible with the Bambu Lab P1P, P1S and X1C.[1] The page does not mention the X1E or the A1 series, so we do not claim fit for them. BIQU says the product comes from a collaboration with E3D and takes RapidChange Revo nozzles, except Revo Belt.
BIQU states a maximum flow of 40 mm³/s, measured with HS PLA at 260 °C using a 0.4 mm High Flow nozzle.[1] That is the maker's own figure under its stated conditions, not an independent measurement. BIQU's specification table lists a 300 °C maximum temperature.[1]
Because it uses Revo nozzles, the Revo vs V6 guide applies: E3D says Revo nozzles change by hand when cold, and that you may need to adjust your Z offset when changing them.[2]
Picks that fit2 products
P1P or P1S: choose the Panda Revo for P1P/P1S (1060000654), or the Micro Swiss FlowTech in its P1P/P1S version (M3109P) with the nozzle you want.
More on choosing
X1C owners need the X1C Panda Revo (1060000659) or the FlowTech X1 version (M3109X), which are separate listings. Neither maker names the X1E or the A1. On Amazon, check that 'Ships from / Sold by' shows Amazon.com, BIQU or Micro Swiss.
BIQU Panda Revo hotend for Bambu Lab P1P / P1S / X1C
Micro Swiss FlowTech hotend for Bambu Lab P1P / P1S (M3109P)
CNC Kitchen's X1/P1P flow numbers
In CNC Kitchen's 2023 test on a Bambu Lab X1/P1P with Voxel PLA at 220 °C, each nozzle "looked good" up to these flows:[3]
| Nozzle | Flow before visible problems |
|---|---|
| Stock hotend | About 23 mm³/s |
| Third-party hardened steel nozzle | About 24 mm³/s |
| Genuine Bondtech CHT | About 32 mm³/s |
| Short AliExpress CHT-style nozzle | About 34 mm³/s |
The endpoint was judged by eye, at the first holes or visible under-extrusion, on OrcaSlicer's vase-mode flow test. The AliExpress nozzle came from a single seller. These are one printer and one filament, not ratings.
Layer strength in the same test
CNC Kitchen also printed layer-strength coupons. With the CHT nozzle they averaged 35-37 MPa across flow rates, while the stock nozzle measured about 31-36 MPa and was lower at the highest flows.[3] There were four samples per speed on a DIY tester, and the author calls the method rough. Do not read it as a general strength gain.
The cheap CHT-style clone
A separate CNC Kitchen teardown found that one low-cost AliExpress "high-flow" nozzle was a standard nozzle with an enlarged bore and a loose copper insert.[4] It flowed well in that single test, but the author noted rough machining and an insert that can be installed backwards. One unit says nothing about the next one you buy.
What we could not confirm
Bambu Lab's own hotend and specification pages for the X1 and P1 series could not be read when we checked. So we do not state:
- which complete or bare hotend options Bambu sells for the P1 series
- whether X1 and P1 hotends interchange
- how the X1 and P1 heatbeds are powered
Check those on Bambu Lab's site for your exact model. The X1 and P1 series page records what is confirmed. A1 owners should read the A1 recall guide instead; nothing here applies to the A1.
Before you put a new number in your slicer
Any flow test is a best case. OrcaSlicer suggests reducing its max volumetric speed result by 10-20% or more for quality and strength.[5]
Next
Questions
Does the BIQU Panda Revo fit the Bambu Lab P1S?
BIQU lists the Panda Revo as compatible with the Bambu Lab P1P, P1S and X1C. Its page does not mention the X1E or the A1 series, so we do not claim fit for them.[1]
How much flow does a CHT nozzle add on a Bambu printer?
In CNC Kitchen's 2023 X1/P1P test with Voxel PLA at 220 °C, the stock hotend looked good to about 23 mm³/s and a genuine Bondtech CHT to about 32. That is one setup, judged by eye.[3]
Is the stock hotend the limit on a P1 or X1?
In CNC Kitchen's test it was the lowest of the nozzles compared, at about 23 mm³/s. Whether that limits you depends on the speeds and materials you print.[3]
Do P1 and X1 hotends interchange?
We could not confirm it. Bambu Lab's hotend and spec pages could not be read when we checked, so we make no cross-fit claim between X1 and P1 hotends.