3dp burner pen

thingiverse

Hi all, just finished building the 3DP Burner and while I'm waiting for the laser module to arrive, thought I'd have a go at a pen attachment to see how accurate it is. This thing is very much a work in progress. It needs a lot of tweaking to get it perfect, but it does work pretty well with the Stabilo pens that I have. Here's it in action: https://www.youtube.com/watch?v=m-hyIKqfU7Q Needed parts: A spare Arduino. I'm using an Uno. 1 x pen holder 1 x pen lifter (if you have more than one, it makes it easier for quickly changing pens) 1 x 9-gram servo (Tower Pro or similar) 1 x 10k resistor A length of suitable connecting wire M3 nuts and bolts to attach the pen guide Stabilo pens that have an 8mm diameter Hot melt glue or foam double-sided sticky pad Here's part 1 of the build: https://youtu.be/ZB_q3QXuLtg Part 2: https://youtu.be/ffWrbR84KnI I realize I haven't shown the Arduino setup yet. If you can't figure it out, I'll have the video up in a couple of days. Here are some very brief instructions: It should be easy to figure out though. When M8 is sent through the sender app, the CoolEn pin on the CNC shield goes live. This 5-volt signal is sent to the other Arduino and is picked up by pin 2. This triggers the servo to rotate a few degrees to lower the pen. When M9 is sent, CoolEn drops to 0v, and the reverse happens. I use Inkscape and J Tech Photonics Laser Plug-in to generate my G-code. The pen holder was made in 123D Design by Autodesk, so I've included the original files, so you can adapt them as needed. Disclaimer: You make this at your own risk. I'm not responsible if you fry something. It's worked perfectly for me though... Thanks goes to Villamany for the great 3DP Burner design. Print Settings: Printer Brand: RepRap Printer: Sunhokey Prusa i3 Infill: 40%