Question formbot kit issues in the homestretch

[speaksoftly]

i'm nearing fully-operational but have a couple things still tripping me up, using the 0.2r1 formbot kit with the dragon hotend.

1. all three of the fans on the extruder/hotend are nonworking. have checked continuity (ok) and plugged them all into working fan ports on the skr pico (the mcu fan works) and they do not spin up even with assistance. wondering if there are adjustments i can make to the skr pico firmware here, or if i just need to replace them

2. the ST display firmware, using the current klipper install, will not compile. the options are different than those in the voron documentation, and i've played around with them but have not been able to get them to work. the error is consistently that the binary becomes bigger than the allotted ROM space (i will follow up with exact error message tomorrow, along with version numbers) i'm not really sure which options i do need (i2c/spi etc) for this, either, and the documentation does not make that clear.

i've just kind of poked around at the forums here without seeing anything along these lines, but happy to be pointed to threads or guides.

 

[Irishukulele]

i'm nearing fully-operational but have a couple things still tripping me up, using the 0.2r1 formbot kit with the dragon hotend.

1. all three of the fans on the extruder/hotend are nonworking. have checked continuity (ok) and plugged them all into working fan ports on the skr pico (the mcu fan works) and they do not spin up even with assistance. wondering if there are adjustments i can make to the skr pico firmware here, or if i just need to replace them

2. the ST display firmware, using the current klipper install, will not compile. the options are different than those in the voron documentation, and i've played around with them but have not been able to get them to work. the error is consistently that the binary becomes bigger than the allotted ROM space (i will follow up with exact error message tomorrow, along with version numbers) i'm not really sure which options i do need (i2c/spi etc) for this, either, and the documentation does not make that clear.

i've just kind of poked around at the forums here without seeing anything along these lines, but happy to be pointed to threads or guides.

Sometimes the fan wires are switched compared to the umbilical, I had to switch a couple of them around (can't remember which ones I needed to do that for)

 

[TheBluezKnight]

On my Formbot V0.2R1 kit, I ended up following everything Ballistic Tech did in his YouTube videos. The fan wiring needed to be de-pinned and swapped and he had notes on the klipper install for the ST display firmware. My BTT Pi showed up dead, so I ended up installing everything on a Pi 3B I had laying around using KIAUH. If you haven't seen the Ballistic Tech videos, I highly recommend them:

https://youtube.com/playlist?list=PLwWNdxHVFVf1DbI2nGngUB0O9TWeXn2Sx&si=cS26DTk4qFjRst4X

Watching these in depth let me zip right through the Formbot kit build. I just bought a Formbot V2.4 kit and really wish Ballistic Tech would build one to make my life easier again.