Sovol SV08 Bambulab Hotend Support

Adapter for Hotend Bambulab.
 

Print in ABS, ASA, ASA-CF, PC-CF, not in PLA or PETG.

3 possible choices.
-The original Bambulal version with fixed nozzle.
You must print the BBL-O version.
-The AliExpress clone, with the tiny nozzles supplied with.
You need to print the BBL-O version.
-The AliExpress clone with V6 nozzles.
You need to print the BBL-C version.

The difference between the BBL-C and BBL-O versions is only in the overall height of the bracket.
The BBL-O version is 2mm higher than the BBL-C, for the original and clone versions with nozzles supplied by AliExpress.  
The V6 nozzles are 2mm longer, so the support needs to be shortened, so that the fans don't blow directly onto the nozzle.

What you need :

BOM
 

2 TCHC M3x22mm screws
2 TCHC M3x16mm screws
2 M3x5x4or5  heat set inserts
2 M3 square nuts
1 piece of 25mm PTFE tubing for the BBL-C version or 27mm for the BBL-O version

You must remove the PTFE tube from inside the extruder, at the bottom. Replace it with a larger piece (25 or 27 mm), which will be in the hotend support, and the extruder.

For my tests, i left the connectors on the board, cut the cables and used the connectors I had in stock.

A few hints for those of you that want to create adapter cables for using an original Bambu hotend:

- The connector on the Bambu thermistor is a JST GH1.25, 2 pin
- The connector on the Bambu heater is a JST XH2.54, 2 pin
- The connector on the Sovol thermistor is a Molex Picoblade AKA JST MX1.25, 2 pin
- The connector on the Sovol heater is a JST PH2.0, 2 pin
- The connector on the Sovol fan is a Molex Picoblade AKA JST MX1.25, 3 pin
- The wires on the original Sovol fan are GND (black), +24V (red) and fan rpm (yellow)

All of these connector types are really hard to crimp as the parts are tiny. If you look on Aliexpress or Amazon, you can find kits with the plastic parts and pre-crimped bits of cable. Those help A LOT.

I have not provided a pinout for the Bambu fan as you can't use that, anyway. That fan is a 5V model, the SV08 provides 24V. If you know how to solve this, you can surely find the proper pinout out yourself. :)

A little service for customers of Amazon Germany - these are affiliate links, don't click if that bothers you:

- JST GH kit: https://amzn.to/4f7QvcY
- JST XH kit: https://amzn.to/4cJUjzx
- JSP PH kit: https://amzn.to/4d8j8Fb
- Picoblade/JST MX kit: https://amzn.to/4d1GEn6

Thanks to Zappes|SV08 for finding the connectors.

KLIPPER

For the thermistor, use "Generic 3950".

[extruder]
step_pin: XXX
dir_pin: XXX
enable_pin: XXX
microsteps: XX
rotation_distance: XX
nozzle_diameter: XXXX
filament_diameter: XXX
heater_pin: XXX
sensor_type: Generic 3950
sensor_pin: XXX
min_temp: XX