Turning a 3D Printer into a Plotter

20160304_robot-picasso

My last couple of posts have been about the Robot Picasso Kickstarter I’m currently running, a project that developed after the failure of the Solidoodle Press 3D printer. It’s attracted some media attention from 3dprint.com and Digital Trends who have followed up the saga of Solidoodle, the company going bankrupt because of the failings of this one printer.

Given the success of the Kickstarter, which is over 300% funded with a few days still to go, I thought it was about time to show the special 3D printed part that has converted the 3D printer into a 2D plotter. I developed the part in Solidworks using just a few key measurements, in particular the 2 front screw holes and the distance needed for the tip of the pen to lightly touch the plate where paper would be stuck. It sure beats using rubber bands and sticky tape which is how the initial experiments began! You can check out the 3D model below.

This is something that you could create for any 3D printer since most extruders have some sort of screw holes that you could take advantage of (for example you can see them in my Cocoon Create printer in this previous post), or perhaps you could design a clever snap-fitting system similar to the tutorial I wrote for Formlabs last year which shows the step-by-step process to designing a snap-fit enclosure. As long as you can create a secure fit, you will be able to get consistent results using your 3D printer as a 2D printer (plotter). If you want to see the process of drawing with this attachment, just check out the Kickstarter video I put together showing the full process of Robot Picasso. It’s a fun way to add a whole new function to your existing 3D printer if you can turn a 2D drawing into simple G-code commands.

– Posted by James Novak

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