These VIs calculates the Checksum, CRC8 or CRC16 of a data package. Checksum is e.g. Used by NMEA protocol and by some other.

This is a repost of our Lego Mindstorms: Banner Print3r Bot build. I wanted to make it more clear and added a few more tips and pictures.

I hope it helps out anyone building this right now! ********************************************************************* Since the took so long to build and get working, the kids played with it for more than a few days. It wasn’t until last week that we decided it was time to take the Mindcub3r apart and build a new bot to play with. Josh gave us a few options, and I decided we would try the Banner Print3r bot. The Banner Print3r bot can draw or write on a cash register/calculator paper roll using a standard Sharpie marker. If you have a washable marker though that works as well as and is the same size as a Sharpie, I’d recommend using that. We didn’t have any cash register paper rolls and I didn’t feel like taking all the kids to Staples, so I ordered a.

At first, I thought I had bought too much paper, but it ended up being a good thing. We are already using our second cash register paper roll! Since this is a monster post (1500 words!), I am going to place the rest of it under a read more.

This robot was quite possibly even more challenging than the Lego Mindcuber robot. It wasn’t the build itself that was difficult, but the programming that was the challenging part. Matthias was able to build the bot in about an hour. Troubleshooting the actual workings of the robot took about a day. Programming took us about two days since we decided to program each letter of the alphabet instead of programming only certain letters. Where to download instructions and the program There isn’t as much info as you would expect about this bot on the Internet. The best place we found for the program itself was at.

Designed the original Banner Print3r bot and building instructions are also at the (the downloadable program doesn’t seem to be at the Lego website though). We used the building instructions from the Lego website and then downloaded the program from.

You will need to download two of the files from the Google Drive that is linked at Constructing Kids: LEGO EV3.ev3p and PlotStep.ev3p. The Lego EV3 file will tell your bot to print out “LEGO EV3.” This is a good file to use just to see if your Print3r bot is working correctly. The PlotStep file is what is used to “build” letters. EDIT: I did not know that you could download the program AND build instructions right from the google drive link at constructingkids.com. I would suggest doing that instead of using the building instructions at the Lego.com website. At the time that we built this robot, I did not totally understand the Lego Mindstorms programming environment. The following links contain the programs you will need for this portion of the build.