New GCodePrintr Release 3.10

A new release of GCodePrintr – The 3D Print App has been published today. This update which comes with several bug fixes and some nice improvements.

★ Share a print with photo or thumbnail with other apps (e.g. twitter, pinterest, etc.)
★ Improved Macro Dialog with Gcode drop down list
★ Partial Russian translation (Thanks to Alexander Borovensky)
★ Anycubic printer added to supported list

Several Bugs Fixed:
Fixed problem when reconnecting to the background service
Fixed issue with web-upload (special chars in multipart boundary)
Fixed wrong painting of G2 gcodes
and more

New GCodePrintr Release 3.08

A new release of GCodePrintr – The 3D Print App has been published today. This release is a minor update which comes with several bug fixes and minor improvements.

  • Updated Android target release (26)
  • New splashscreen method (compatible with 26)
  • Show when webserver is in failed state and improve debugging
  • Improved capture of camera picture on Web interface
  • Fixed several exceptions and bugs.
    • e.g. avoid sporadic hangs when printer responds with echo:processing

Shapeoko Spindle upgrade

As written in the previous blog post, I have bought a new CNC spindle motor for the Shapeoko. The old spindle was a cheap rotary tool (like a Dremel rotary) which was very inaccurate and loud . (use with earmuffs only !). Another disadvantage was the 3mm collet, it did not hold the drill bits very well.

Old spindle motor

In order to install the new spindle, a adapter plate is needed. I read a few posts about drilling a adapter plate but I decided to try a 3d printed plate. It took me a few tries to find the right material thickness and infill settings, to avoid bending when milling.

Designed with OpenSCAD and printed in PLA on my Multec Multirap 3D Printer (Using GcodePrintr App). Please contact me by email if you need the STL or OpenScad file.
Carrier with adapter plate
Carrier with adapter plate and spindle

Once assembled, the new Spindle sits tight and does its job very well.

Spindle Motor mounted with adapter plate

The new Spindle Motor is much quieter and more accurate. I can highly recommend the upgrade !


  • Quiet
  • Accurate
  • ER11 Collect (up to 6mm)
  • Variable Speed (3000-12000r/min)
  • Speed control through GRBL (optional)
  • Inexpensive (99€)