qratz / voron_sb_sw_sb2209_umbilical

Allows for an umbilical on a Voron Switchwire, while using a BTT SB2209/SB2240 can bus toolhead pcb.

Voron Stealthburner Umbilical for Canbus SB2209/SB2240 Toolhead PCBs

Description

This mod gets rid of the x-gantry cablechain in favor of an umbilical on a Voron Switchwire, while using a BTT SB2209/SB2240 can bus toolhead pcb and the cable that comes with the PCB.

These files are designed to subliment/replace BTT's files located here: https://github.com/bigtreetech/EBB/tree/master/EBB%20SB2240_2209%20CAN/Custom%20Printed%20Parts

Use

• The BTT "CW2 Cable Bridge" part is reused and what the toolhead.stl mounts to, but the "Printed Part for CAN Cable" is replaced with said toolhead.stl.

• The cablechain stl in this repo is used by mounting it sandwiched between the existing Switchwire cablechain mount and the z-axis cablechain terminus.

• The threading on the parts is m12 so any cable gland with that threading should work, I used cheap pg7 glands with strain relief I found on amazon: https://www.amazon.com/dp/B08K8FB4KV?ref=ppx_yo2ov_dt_b_product_details&th=1

Notes

• Both the toolchain and cablechain models will require some longer m3 bolts than you currently have. Not a lot, but areas will need approximately 3mm longer bolts.

• Both parts will print in place just fine, with no supports or modification needed (tested on 3 different printers). Recommended slicer settings are congruent with Voron recommendation.

• You will also want to ammend your max z settings in your firmware as this will lessen it slightly. The main focus was to preserve full x travel and there will be some reduction in z motion! On my switchwire, my max z is set at 220mm and I have a few mm more if absolutely needed, your milage may vary.

Designed by Stu Campbell, user Stu#7589 on Voron Design Discord