printrbot_sm_tips

Hello! This github has tips, tricks, configs for PBSM and other Printrbots.

Klipper is working great for me on my Printrbot Simple Metal! Using a Raspberry Pi 3 B+. My printrboard is Rev F4.

Note that the old Printrboard (anything before the "Simple Pro" with G2) has some quirks for flashing - MAKE_flash didn't work, so I had to use a different utility on the Pi to flash the hex file. Worst case, you can use Atmel Flip on PC (or another method) to flash the .hex file after compiling it.

Included so far:

1. printer.cfg for my printer, with some comments explaining my changes.
2. Cura Profile "versatile jg1" - nice fast accel values for printing PLA with my Printrbot Simple Metal
3. Cura Pre/Post Gcode - basic setup and nozzle purge. Loads my bed_mesh_calibrate file (called 'default').

TODO:

1. Broken Fan Mosfet solution
   • Fan mosfet is small SMD, so I made a fan control circuit with a transistor/mosfet and use a different unused pin to control fan now.
   • Klipper is great for fan control since you can define custom fans, use any pin, even GPIO pins on the Raspberry Pi or other controller. (requires setting up Pi as an additional MCU)
2. Z-axis 8mm Metric Screw upgrade
   • see: https://github.com/MS3FGX/PBSM_ZNUT
   • T8 (8mm dia.), 250mm length, 4start (recommended by Brook Drumm)
   • like this: https://www.amazon.com/250mm%EF%BC%889-84Inches%EF%BC%89Tr8x8-Thread-Starts-Printer-Machine/dp/B08JPVZQ76

Helpful Links:

• https://www.brookdrumm.com/designs - 3D models for Printrbot and official upgrades/ accessories

  • Printrbot Simple Metal A360 3D Model - you can export this in your format of choice, great for designing accessories/brackets/etc

• https://github.com/Printrbot - Printrbot official Github. Firmware info+.hex files, configs, printrboard eaglecad, various utilities

• The Klipper Installation Page (or the Install page on github) is excellent. If you've setup a raspberry pi before and/or flashed firmware onto a 3d printer, it's straightforward.

• https://www.dropbox.com/sh/qdv5s12pe2suty0/AADJ068B-gjvNOAVt6ncqOmra?dl=0 - Printrbot Documentation Backup

  • Generic Printrboard Klipper Config - I started with this but had to modify lots of stuff to get going. Mainly the pins to start.

• https://reprap.org/wiki/Printrboard - nice reference for the board schematic and pin listings. You can probably save your Configuration.h file from Marlin and use that to reference the pin assignments. This page doesn't list the Rev F6 though.

• Nero 3dp - Klipper Initial Setup : Making sure things are all good before printing - this channel is excellent for Klipper stuff. I used his Input Shaper tuning guide with an accelerometer.

• https://github.com/Printrbot/printrboardmodernmarlin/releases/tag/2.0.1 - Modern Marlin for Printrbot

• http://www.reddit.com/r/Printrbot - subreddit

  • https://www.reddit.com/r/klippers/comments/ae74z6/need_help_installing_klipper/ - helpful thread