Dobrica Pavlinušić's random unstructured stuff
Printrbot Plus: Revision 27

Old 3D printer which never worked well.

https://web.archive.org/web/20130115210644/http://printrbot.com/shop/plus/

Contents


PrintrBot Plus LC

The Printrbot PLUS is the larger printrbot kit–containing an 8x8x8 build volume, laser cut birch construction, an assembled Ubis hot end, and 12mm Z-axis rods in an all-in-one kit. This kit also includes 1 lb of ABS filament.

This kit includes everything you need to build the printrbot PLUS:

  • printrboard: all-in-one assembled electronics with integrated SD card slot (no soldering required)
  • 5 NEMA 17 stepper motors complete with cable ends attached
  • laser cut birch construction
  • a few printed plastic parts (gears, etc)
  • WOOD Extruder Kit
  • hardware (8mm smooth rods, threaded rods, and bearings
    • Z axis is 12mm smooth rods and 12 mm linear bearings )
  • assembled Ubis hot end
  • nuts, bolts, washers, zip ties
  • laser cut print bed
  • 8×8 heated bed
  • misc assembled cables (no soldering required)
  • 3 mechanical end stops (no soldering required)
  • micro USB cable

nozzle

The Getting Started Guide says that all Printrbots currently ship with 0.4mm nozzles.
The convention for identifying nozzles is based on notches (or "rings") cut into the sides (vertices) of the hexagonal brass "nut".
No notch = 0.5mm
1 notch = 0.4mm
2 notches = 0.35mm

info

Most of information about it vanished from internet so here is some overview:

Rev.B https://github.com/Printrbot/printrboard/releases/tag/revB

serial

[Sun Mar 18 08:23:50 2018] usb 2-4.4: new full-speed USB device number 61 using xhci_hcd
[Sun Mar 18 08:23:50 2018] usb 2-4.4: New USB device found, idVendor=16c0, idProduct=0483
[Sun Mar 18 08:23:50 2018] usb 2-4.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[Sun Mar 18 08:23:50 2018] usb 2-4.4: Product: USB Serial
[Sun Mar 18 08:23:50 2018] usb 2-4.4: Manufacturer: Teensyduino
[Sun Mar 18 08:23:50 2018] usb 2-4.4: SerialNumber: 12345
[Sun Mar 18 08:23:50 2018] cdc_acm 2-4.4:1.0: ttyACM0: USB ACM device

dpavlin@nuc:~$ microcom p /dev/ttyACM0 
connected to /dev/ttyACM0
Escape character: Ctrl\
Type the escape character to get to the prompt.


start
echo:PowerUp
 Brown out Reset
Marlin: 1.0.0 RC2
echo: Last Updated: 2012-02-25 | Author: erik
echo: Free Memory: 4907  Pla




echo:SD init fail
workDir open failed
echo:Unknown command:"echo"
ok
echo:Unknown command:"SD init fail"
ok
echo:Unknown command:"workDir open failed"
ok

settings

https://github.com/Printrbot/Marlin

M501
echo:Stored settings retreived:
echo:Steps per unit:
echo:  M92 X62.11 Y64.67 Z2272.72 E536.00
echo:Maximum feedrates (mm/s):
echo:  M203 X60.00 Y60.00 Z2.00 E14.00
echo:Maximum Acceleration (mm/s2):
echo:  M201 X2000 Y2000 Z30 E10000
echo:Acceleration: S=acceleration, T=retract acceleration
echo:  M204 S3000.00 T3000.00
echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum xY jerk (mm/s),  Z=maximum Z jerk (mm/s)
echo:  M205 S0.00 T0.00 B20000 X20.00 Z0.40 E5.00
echo:PID settings:
echo:   M301 P22.20 I1.08 D114.00

M115
FIRMWARE_NAME:Marlin V1; Sprinter/grbl mashup for gen6 FIRMWARE_URL:http://www.mendel-parts.com PROTOCOL_VERSION:1.0 MACHINE_TYPE:Mendel EXTRUDER_COUNT:1

software bed leveler

schematics

Printrboard_RevB_Schematic150.png

Printrboard-schematics.pdf

Marlin

dpavlin@nuc:/nuc/PrintrBot$ git clone https://github.com/MarlinFirmware/Marlin

dpavlin@nuc:/nuc/PrintrBot$ cd Marlin/

dpavlin@nuc:/nuc/PrintrBot/Marlin$ platformio run -e printrboard

dfu mode

open boot jumper, press button

[Sun Apr 15 12:20:34 2018] usb 1-1.1: new full-speed USB device number 30 using xhci_hcd
[Sun Apr 15 12:20:34 2018] usb 1-1.1: unable to get BOS descriptor
[Sun Apr 15 12:20:34 2018] usb 1-1.1: New USB device found, idVendor=03eb, idProduct=2ffb
[Sun Apr 15 12:20:34 2018] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[Sun Apr 15 12:20:34 2018] usb 1-1.1: Product: AT90USB128 DFU
[Sun Apr 15 12:20:34 2018] usb 1-1.1: Manufacturer: ATMEL
[Sun Apr 15 12:20:34 2018] usb 1-1.1: SerialNumber: 1.0.0


root@nuc:/nuc/PrintrBot/Marlin# apt-get install dfu-programmer


root@nuc:/nuc/PrintrBot/Marlin# dfu-programmer --targets 2>&1 | grep at90usb128
    at89c5132          at90usb1287        at90usb1286        at90usb1287-4k
    at90usb1286-4k     at90usb647         at90usb646         at90usb162

root@nuc:/nuc/PrintrBot/Marlin# dfu-programmer at90usb1286 dump --debug 99
     target: at90usb1286
    chip_id: 0x2ffb
  vendor_id: 0x03eb
    command: dump
      quiet: false
      debug: 99
device_type: AVR
------ command specific below ------

commands.c:625: dump 122880 bytes
atmel.c:579: atmel_read_flash( 0x7ffe83facaf0, 0x00000000, 0x0001e000, 0x564ef5df7000, 122880, false )
atmel.c:847: atmel_select_page( 0x7ffe83facaf0, 0 )
atmel.c:510: __atmel_read_page( 0x7ffe83facaf0, 0, 65536, 0x564ef5df7000, false )
atmel.c:537: result: -9
Unknown error.  Try enabling debug.
Failed to read 122880 bytes from device.

other useful debug levels are 100, 200, 300 - https://www.avrfreaks.net/forum/how-use-dfu-programmer

hmmm... can't backup firmware?

flash firmware

dpavlin@nuc:/nuc/PrintrBot/Marlin$ dfu-programmer at90usb1286 erase
dpavlin@nuc:/nuc/PrintrBot/Marlin$ dfu-programmer at90usb1286 flash .pioenvs/printrboard/firmware.hex
Validating...
Flash did not validate. Did you erase first?

dpavlin@nuc:/nuc/PrintrBot/Marlin$ dfu-programmer at90usb1286 erase --debug 100
     target: at90usb1286
    chip_id: 0x2ffb
  vendor_id: 0x03eb
    command: erase
      quiet: false
      debug: 100
device_type: AVR
------ command specific below ------
   validate: true

commands.c:69: erase 122879 bytes
atmel.c:281: atmel_erase_flash( 0x7ffc5df9bff0, 4 )
atmel.c:671: atmel_blank_check( 0x7ffc5df9bff0, 0x00000000, 0x0001dfff )
atmel.c:847: atmel_select_page( 0x7ffc5df9bff0, 0 )
atmel.c:647: __atmel_blank_check_internal( 0x7ffc5df9bff0, 0x00000000, 0x0000ffff )
atmel.c:847: atmel_select_page( 0x7ffc5df9bff0, 1 )
atmel.c:647: __atmel_blank_check_internal( 0x7ffc5df9bff0, 0x00000000, 0x0000dfff )

unlock chip using flip

It seems that chip is protected. However, trying to erase and program it did destry data in it (expect bootloader) for some reason, and it seem that dfu-programmer doesn't know how to work with protection features.

So, next step is to try atmel's flip under linux but this also doesn't work well.