# New Voron 2.4 r2 using Canbus 2209 /2240 Octopus v1.1 ,u2c bttpi **URL:** \ **Category:** General Discussion\ **Created:** [December 26, 2023, 3:32am UTC](https://klipper.discourse.group/t/new-voron-2-4-r2-using-canbus-2209-2240-octopus-v1-1-u2c-bttpi/12591 "2023-12-26T03:32:31Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Tim372](https://avatars.discourse-cdn.com/v4/letter/t/54ee81/32.png) [@Tim372](https://klipper.discourse.group/u/Tim372)\ **Post date:** [December 26, 2023, 3:32am UTC](https://klipper.discourse.group/t/new-voron-2-4-r2-using-canbus-2209-2240-octopus-v1-1-u2c-bttpi/12591/1 "2023-12-26T03:32:31Z")
### Basic Information: Printer Model: MCU / Printerboard: `klippy.log` _Fill out above information and_ **_in all cases attach your_ `klippy.log` _file_** (use zip to compress it, if too big). _Pasting your_ `printer.cfg` _is **not** needed_ _ **Be sure to check our “Knowledge Base” Category first. Most relevant items, e.g. error messages, are covered there** _ ### Describe your issue: Unable to parse option ‘stealthchop\_threshold’ in section ‘tmc2209 stepper\_z3’ I have been chasing problems for about 2 weeks maybe longer thought i had it beat when this last error came up. First time user not sure how to paste klipper log must have missed the button ---
**Author:** ![EddyMI3D](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/eddymi3d/32/1981_2.png) [@EddyMI3D](https://klipper.discourse.group/u/EddyMI3D)\ **Post date:** [December 26, 2023, 7:58am UTC](https://klipper.discourse.group/t/new-voron-2-4-r2-using-canbus-2209-2240-octopus-v1-1-u2c-bttpi/12591/2 "2023-12-26T07:58:31Z")
Hello @Tim372 ! ![grafik](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/a/a35bb08cd50f1d5c8589a0bddba63ad56e1ddc5a.png) Please attach the klippy.log to your **next post**. ---
**Author:** ![Tim372](https://avatars.discourse-cdn.com/v4/letter/t/54ee81/32.png) [@Tim372](https://klipper.discourse.group/u/Tim372)\ **Post date:** [December 26, 2023, 8:09am UTC](https://klipper.discourse.group/t/new-voron-2-4-r2-using-canbus-2209-2240-octopus-v1-1-u2c-bttpi/12591/3 "2023-12-26T08:09:18Z")
[klippy 26 dec.log](https://klipper.discourse.group/uploads/short-url/vgNPmGOefkqJOSX7ozeldvhLvqU.log) (225.2 KB) ---
**Author:** ![LifeOfBrian](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/lifeofbrian/32/2380_2.png) [@LifeOfBrian](https://klipper.discourse.group/u/LifeOfBrian)\ **Post date:** [December 26, 2023, 9:33am UTC](https://klipper.discourse.group/t/new-voron-2-4-r2-using-canbus-2209-2240-octopus-v1-1-u2c-bttpi/12591/4 "2023-12-26T09:33:13Z")
> [@Tim372](#): > > irst time user not sure how to paste klipper log must have missed the button Just drag’n’drop it into the edit field or use the attach button. ---
**Author:** ![Sineos](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/sineos/32/18_2.png) [@Sineos](https://klipper.discourse.group/u/Sineos)\ **Post date:** [December 26, 2023, 12:00pm UTC](https://klipper.discourse.group/t/new-voron-2-4-r2-using-canbus-2209-2240-octopus-v1-1-u2c-bttpi/12591/5 "2023-12-26T12:00:10Z")
Fix: ![grafik](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/f/f058e3327af37610e011405ad6ec0225edbc9c1c.png) ---
**Author:** ![Tim372](https://avatars.discourse-cdn.com/v4/letter/t/54ee81/32.png) [@Tim372](https://klipper.discourse.group/u/Tim372)\ **Post date:** [December 27, 2023, 12:44am UTC](https://klipper.discourse.group/t/new-voron-2-4-r2-using-canbus-2209-2240-octopus-v1-1-u2c-bttpi/12591/6 "2023-12-27T00:44:58Z")
Thank you all fixed that problem but this was the original problem. This one i have tried to read up on and still coming to grips with Klipper and mainsail used marlin an octoprint before. “mcu ‘mcu’: Unable to connect” I don’t seem to be able to get a port at the end of the Serial Number as I believe it should. I have reloaded everything and restarted, klipper, katapult etc. [klippy 2 dec 2023.txt](https://klipper.discourse.group/uploads/short-url/2pyYJf462bEnCXdRndSRhBPqclF.txt) (249.9 KB) ---
**Author:** ![EddyMI3D](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/eddymi3d/32/1981_2.png) [@EddyMI3D](https://klipper.discourse.group/u/EddyMI3D)\ **Post date:** [April 24, 2024, 1:17pm UTC](https://klipper.discourse.group/t/new-voron-2-4-r2-using-canbus-2209-2240-octopus-v1-1-u2c-bttpi/12591/7 "2024-04-24T13:17:41Z")