Anycubic Kossel Linear Plus Marlin 2.0.5.3 SKR1.3 TMC2209 plus .6mm Cura Profiles for PETG

4/26/2020 Update: Shrunk download significantly by removing my build libraries, that was dumb, you need to build it anyway. Also tuned down mA on TMC2209's to 790 to eliminate layer shifting issues I was having.

Ignore the calibration file, it's there because thingiverse wouldn't let me upload without a model file.

I grew frustrated trying to cobble together other peoples projects to work for me, so I started from a clean download and made appropriate edits. If you don't want my marlin files, just download from source and copy the platformio.ini, configuration.h, and configuration_adv.h files into your directory and edit as you desire. If you're NOT using a linear plus with the 240mm built-tack like sticker, you'll need to adjust configuration.

My KLP has the following changes:

• SKR1.3 because I blew up my trigorilla. Currently configured for 2209's with a very slight undervolt...790mA instead of 800, change that in configuration_adv if you don't like it.

• Volcano hotend, initially because I wanted to print fast with klipper but now I just like that it does whatever at whatever speed I want. I use the Triangle Labs with a hardened .6 nozzle. Shouldn't matter if you have stock, the thermistor and such are the same.

• .6 nozzle. THIS CONFIG IS SET FOR A .6 NOZZLE. Change it if that's not what you have. Also, the cura profiles won't help you. Check out RennWaffen's .4mm profiles if you need help. These are based there but not 100% the same.

• Glass bed. Again not required but helpful, I do basically 100% petg with no cooling at all save for the hotend. Use painters tape if you can't get adhesion, slow down, and increase Z offset. PETG should ooze out without ever scraping the previous layer.

• My z-probe is the on-nozzle type here: https://www.aliexpress.com/i/32841920169.html, so type 1 probe offset is set for this style. MARLIN CHANGES FROM OTHER FIRMWARES:
  There are a bunch, but key to me:

• Slowdown is OFF. IDK why so many delta skr folks have slowdown on.

• Steps at 16, I saw no benefit to 32.
• Cumulative Babysteps to help you know where you're at.
• Speed tweaks for homing/probing. Some of the other configs out there are SUPER slow, some are WAY too fast, slamming the nozzle into the bed for probing. This is a happy medium for me.
• Fixed floating points. A LOT of the custom configs out there forget decimals and it jacks things up, especially on bed size and such. I fixed that, it's even wrong in the stock marlin config samples.

• Auto-on fan at 50C. This fixes the issue of two fans showing up and having to turn on the heat sink fan manually. The only fan in the menu is now the part cooling fan. A few other bits and tweaks. Code-compare someone else's if you want to see it all.

  To flash:

  1. in VSCode, if you're using 2209's, no need to change stepper type. If you aren't, change that in platformio.ini

1. Build/upload, restart printer.

1. M502 a few times (or load defaults from config menu, do it a few times.)

1. M500 to save the defaults (or save from config menu, do it a few times.)

1. reboot

1. G28 to confirm homing works

1. G33 to begin z-auto probe, once you're sure it's not walking off the bed go get a drink, it's slow.

1. M500 M500 M500 M500, make sure it's all stored.

1. PID Tune Hot end (Mine: M301 P22.73 I1.95 D66.31)

1. PID Tune bed (Mine: M304 P249.46 I27.13 D1529.11)

1. M500 M500 M500

1. Follow Lukas Pomykal's guide to make sure your calibration is perfect:
   http://www.lpomykal.cz/3d-printers/kossel/kossel-bed-calibration-marlin-fw/

1. M500

1. M503 to confirm your settings are right.

1. Print!