Step 2: Create the unique part

The only part that I had to fabricate was a plate that bolted to the Create and offered LEGO spacing. The spacing of the LEGO brick holes is 8mm apart, but I did a double spacing to save time. The extruded PVC is a breeze to work with. It can be cut with a utility knife, but is rigid and strong. I often pick up the robot by this plate and I have not had a problem yet.

Step 1:
Cut the sheet to 3.5" x 9.5", you can cut this with a utility knife.

Step 2:
Drill the holes for the create screws. The create screws make a box that is 2 and 5/8" by 8 and 5/8".

Step 3:
Drill the LEGO brick spaced holes. Use a 3/16" drill bit and I spaced the holes 16mm apart.

I laid out the sheet in a CAD program, printed it out full size and taped it to the sheet. Then I used this as a guide for cutting and drilling.
hey, ur model was really great, can u also make a robot that can play badminton please.....I'm dancing some problems with buying the correct parts for it
Have you seen this, pretty cool creation. <br> <br>http://www.kickstarter.com/projects/567971283/iroo?ref=live
GBC? u mad but GJ =)
hmmm this is awesome, great job, im definatly using the XBC for my next robot, either for a hexapod or an autonomous race car (using one of those hobby class rc cars)
How did you get the code for the camera?
The program I am using is called IC, which is basically C. IC has library functions to return information from the camera, like blob size, x axis, y axis, ect. IC supports 16 blobs across 3 channels so I can track up to 48 blobs at a time. Then you just take the values returned and make everything else happen. <br/><br/>If you are interested in IC check out <a rel="nofollow" href="http://www.botball.org">Botball.org</a> for more information.<br/>
Nice job! I really like the idea of using a GBA as a microcontroller, but 300 bucks for it is too much for my budget, maybe someone could make a Open Source version, like the Arduino...
This is so cool! I want to build one but like everyone else i couldn't possably afford it, good work!
so it senses ledges..... I want to build one and put a orange ball on the edge of the grand canyon
where you bought the camera?
You can buy it individually here:<br/><br/><a rel="nofollow" href="https://botballstore.org/catalog/product_info.php?cPath=25&amp;products_id=56&amp;osCsid=730e0214112eba9d2e1b6eb7189eca0b">https://botballstore.org/catalog/product_info.php?cPath=25&amp;products_id=56&amp;osCsid=730e0214112eba9d2e1b6eb7189eca0b</a><br/><br/>Mine came with my XBC.<br/>
Nice, the only thing that I would have done, is make it pick up your dirty clothes and put it in the wastebasket. It would be pretty hard determining what not to pick up, things that are to heavy could break the the arms. Still I thought this was a really great idea.
So this is a great start for a laundry sorting robot or a robot to clean up my house. It goes great with the rest of the roomba products!
This bot is autonomous? It scored 5 of 5 - better than what I would have scored!
Yes, this robot is completely autonomous. It was loaded with code before hand and then ran the code all on it's own, i.e. no live controls were used.
Now if only my socks were all orange balls...
really cool, if it wasnt 900 bucks, id make one. whats the image displayed on the gameboy screen?
Initially the image is the Gameboy logo as the GBA boots. Then it loads IC and has a main menu. When I run the robot I have it print the battery charge. The XBC is only $292. So if you have some LEGO bricks and/or a Create or a Roomba, It can be done for much less.
Wow, that's really cool! You have awesome commenting on your code. I want one of my own!
Thanks, I wanted it to be easy for other people to use and understand. Remember kids, <strong>always</strong> comment your code. :)<br/>
wow this looks cool, and so is your pic of Scott from ctrlaltdel
That is very cool, what is the total cost? +
Let's see...<br/><br/>Create + battery+ doc = $260<br/>XBC starter kit (xbc, cam, LEGO bricks, sensors) = $579<br/>PVC + paint + screws = about $20<br/>Total cost = $859<br/><br/>I already had the XBC starter kit from Botball, so the cost to me was the cost of the Create. I think I'll add this to the instrucable. <br/>

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More by Matthew Oelke: How to make an autonomous basketball playing robot using an iRobot Create as a base
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