D3D Product Testing

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Prusa i3 Build

Auto Bed Leveling

First, Marlin is not working with auto bed leveling - axes are reversed. To change this, line 320-3 in configuration.h:

  1. define INVERT_X_DIR true // true for OSE Prusa i3
  2. define INVERT_Y_DIR true // true for OSE Prusa i3
  3. define INVERT_Z_DIR true // true for OSE Prusa i3
  4. define INVERT_E0_DIR true // true for OSE Prusa i3

(download OSE Prusa i3 with Auto Bed Level Marlin Auto bed level is achieved in line 349:

//#define ENABLE_AUTO_BED_LEVELING // Delete the comment to enable (remove // at the start of the line)


This is the 3D printer of the first iteration of OSE's workshop.

  1. Testing the Live ISO downlaod from D3D Live ISO - I downloaded from the Dropbox since the first link failed to do complete downloads - it would quit about half way.
  2. Creating live USB as in D3D Live ISO. Formatted to EXT4 using Gparted, and opened ISO in Archive Manager. Extracting does not work:


Wow, that USB stick had a long name. You change owner with chown. Try: sudo chown -R marcin /media/marcin/24667c8b-dd03-4286-b350-7d35edd72f63

The -R gives you ownership of the USB and everything inside it.

The group owner is changed with chgrp. Try: sudo chgrp -R marcin /media/marcin/24667c8b-dd03-4286-b350-7d35edd72f63

This will hopefully solve the write permissions problem once. To solve it permanently, it looks like you have to alter some file in /etc/udev/rules.d. See https://askubuntu.com/questions/17540/how-do-i-set-executable-permissions-on-a-removable-drive and https://stackoverflow.com/questions/1736942/auto-permissions-on-udevd-device-files

Alternatively, get around permissions-stuff by doing it all with sudo: sudo apt-get install p7zip-full sudo 7z x Porteus-D3D-Workshop-x86_64-v2.iso -o/media/marcin/24667c8b-dd03-4286-b350-7d35edd72f63

Hopes this extracts the iso for you. Very irritating bug in your operating system that gives the wrong permissions to USB drives...


  • First calibration cube worked well the first time around, with Folgertech_Kit#Build_Instructions. Power supply blew the second time it was turned on - the ground wire was connected to the neutral terminal on the power supply, and the neutral wire was connected to the ground terminal on the power supply. Note: this is interesting in that it worked the first time around - it shouldn't have.