Basic Information:
Printer Model:
MCU / Printerboard:btt gtr 1.0
klippy.log
Fill out above information and in all cases attach your klippy.log file. Pasting your printer.cfg is not needed
Be sure to check our Knowledge Base and in particular this and this post
Describe your issue:
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Hi, I’m doing a 3d printer project with a tool changer, and I’m wondering if I can connect all the tools with the data transmission boards through the Can bus protocol, but I’m wondering how many boards I’m going to be able to connect to the rpi since it only has 4 usb and one of them is occupied by the printer control board, that is, I have 3 ports left, can I use a usb hub and what would be the limit of devices that I could connect and configure in the Klippers interface ?