In case you’re not familiar with the concept, a Polar Drawbot is a polargraph mural drawing robot intended to teach students about programming, physics, trigonometry, and electronics. The Makelangelo iteration of the device is essentially an “art robot” which hangs on a vertical surface and, with nearly the same technology as a 3D printer, uses a pen holder, software, steppers, and motor mounts to trace out an image of your choosing. Software converts PNG, JPG, BMP, and GIF images to the instructions to draw the finished product, and as an added bonus, includessupport for DXF files.
Franciscone says the electronics and firmware come from the Makelangelo project using version V1 of the Adafruit motor shield, he used a DK Electronics motor shield for his project. As for Makelangelo, it’s also scalable and the project team say test models have ranged from being capable of drawings from 30cm2 to 300cm2.
After several test trials using parts he had close at hand, Franciscone found that none seemed to match his requirements closely enough for his taste, so he began to completely redesign each and every part to put his personal stamp on the device.
Franciscone says the testing revealed he would need three separate types of pulleys: one used for smooth cords and the others to take on the task of moving the power through a synchronous transmission he made with ball chains.
For his project, he used 3.2mm all metal chain with a pitch of 4mm, 4.4mm plastic ball and cord with a pitch of 6mm, and a plastic ball and cord of 4.4mm with 12mm pitch.
He says that while the various chains can be used interchangeably, the pulley diameters in the machine setup must be changed as well to avoid results which mess up the aspect ratio of the finished drawings. As a counterweight, Franciscone used a “D” type battery past it’s prime and a holder he made to to hang it.
He says his parts were inspired, to a large extent, by work done on a similar project by fellow Thingiverse user Kongorilla. You can see Kongorilla’s photos of the project, as well as a whole bunch of very cool other projects, on his Flickr photo stream.
And by all means, check out this interview with Dan Royer of Marginally Clever below.
Can you see yourself building this Polar Drawbot based on the Makelangelo version by Dan Royer? Let us know in the Polar Drawbot forum thread on 3DPB.com. Check out the video below showing the drawbot in action.
Subscribe to Our Email Newsletter
Stay up-to-date on all the latest news from the 3D printing industry and recieve information and offers from thrid party vendors.
You May Also Like
CEOs Dive Into Raising Capital Without Going Public – Part I
After several years of watching a handful of 3D printing companies follow the SPAC trend to go public, it became even more evident that most of the businesses in the...
3D Printing Financials: Q1 2022 Is Stratasys’ Strongest Quarter in Six Years
The overall first quarter of 2022 for Stratasys (NASDAQ: SSYS) could be the strongest in six years. In its latest earnings report for the period ending March 31, 2022, CEO...
5 Ways Biden’s AM Forward Strategy Will Grow 3D Printing in the US
On May 6, 2022, President Joe Biden paid a visit to United Performance Metals in Hamilton, Ohio, where he announced the launch of a new federal 3D printing program dubbed...
3D Printing Webinar and Event Roundup: May 8th, 2022
We’ve got another busy week of webinars and events in the AM industry ahead of us, with topics covering 3D printed housing, robotics, the supply chain, multimaterial 3D printing, generative...