I recently created a simple pen ploter on my reprap machine: [www.youtube.com] The pen mount is designed and printed by me, it uses rubber band to push the pen against the paper and a stepper motor to lift it. Here is a short video where you can have a better look at the mechanism: [www.youtube.com] I use python for all the stuff: most of the things you can see on the video are just bitmaps which are converted to gcodes in such a way that they are drawn line by line. The trajectory of the rocket is computed using Newton's law of gravity. In the near future i plan to extend it to use another pen so that drawing with to different pens independently will be possible, stay tuned! https://reprap.org/forum/read.php?166,181365,181365#msg-181365 Thu, 14 May 2026 22:01:35 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?166,181365,205821#msg-205821 https://reprap.org/forum/read.php?166,181365,205821#msg-205821
Today I'm simply importing the bitmap into Inkscape, let it vectorize and export the contours into my CAM for adjusting or add hatch or post-optimizing the tool-paths ...]]> VDX Look what I made! Mon, 06 May 2013 01:50:49 -0400 https://reprap.org/forum/read.php?166,181365,205766#msg-205766 https://reprap.org/forum/read.php?166,181365,205766#msg-205766 Jasper1984 Look what I made! Sun, 05 May 2013 19:37:44 -0400 https://reprap.org/forum/read.php?166,181365,181365#msg-181365 https://reprap.org/forum/read.php?166,181365,181365#msg-181365
[www.youtube.com]

The pen mount is designed and printed by me, it uses rubber band to push the pen against the paper and a stepper motor to lift it. Here is a short video where you can have a better look at the mechanism: [www.youtube.com]
I use python for all the stuff: most of the things you can see on the video are just bitmaps which are converted to gcodes in such a way that they are drawn line by line. The trajectory of the rocket is computed using Newton's law of gravity.

In the near future i plan to extend it to use another pen so that drawing with to different pens independently will be possible, stay tuned!]]> plastruktor Look what I made! Sat, 02 Feb 2013 05:04:05 -0500