For now it will remain RC, but in the near future I hope to have it running off of an ABB.
When everything is in working order, I would like to be able to build it into something like a Tyco Nitro Dozer. I had one years ago and loved how the chassis would change. Here is the only pic of it I could find.
Like this bot also.
Jim or Beth
Can I have this moved into the projects area? I realized I accidently put it the wrong section. Thanks!
Are those Harbor Freight drill motors for the drive? Seems like it should have great stability and power.
Are you planning on adding sensors or just having the ABB run a pre-programmed route?
Looks good.
-Matt-
Great job with the chassis! All the parts are packed in nice and neat! 8)
how are the motors mounted so that they don’t move around?
It’s not 100% solid, but it’s plenty to get the job done.
I would like to add sensors, but my skills are not quiet that far. For the time being I’ll just run it RC and then venture into sensors/pre-programmed routes.
Thanks! It’s a piece of cardboard holding the electronics in 
Works just fine for now.
Yup! Great job mounting the motors. Good thing it had holes for screws too! 
Cardboard? Thats all you need 8)
I am concerned about the motor mount. If nothing is supporting the weight of the motor, it can bounce up and down and with a plastic motor housing, it can crack eventually. I think there needs to be some kind of support on the back end of the motor body to relive that stress point.
Those two screws are begging for mercy. 
Very good thinking. Also, if the motors get hot in operation, its going to make the plastic a bit more maliable than normal and could increase the risks. 
I know those motors need better mounting… But for now it’s all I can do. I’m in my Sr yr of high school and the 3 AP classes I’m taking gobble up any time I have! (Phys C, Chem, Calc AB). Hopefully over winter break I’ll get a chance to work on it.
I know what you mean! Building Robots for the national Science Fair + School work is insane! 
Update! I finally was able to get the plexiglass to cut without cracking and made everything uniform. I need to trim up the plates, because the tracks are binding on the radius. Yes I know I need to put tensioners on there too
http://i172.photobucket.com/albums/w6/jbflix/DSC04810.jpg
Very nice! How do the sprockets stay on the ball bearing and how do the ball bearing stay on the plexi glass? Glue?
Wow I just realized how bad that picture is… The sprockets are connected with Jim’s passive idlers. The bearings are pressed into the hole and aren’t going anywhere! After finding out plexiglass isnt the best to use in robotics, I might be redesigning this again!
Acrylic is tough to work with. Go with Lexan! You can get it at homedepot for a good price. I noticed it when I went to the plexiglass section. Both acrylic and polycarbonate sheets in all different sizes are sold. You can get a piece of 11x14 for $9.00 here in Canada. Probably cheaper in the US. 
I was just at Home Depot too! I got a ~12x~36 sheet of plexi for $7.50 from a hardware store because it was scrap. Tell them it’s for a school project. That might help with the price!
Thats hilarious! You got a great deal on the plexi though, 7.50 for a sheet that big ain’t bad at all! 
I was able to get the other side finished. My situation now: do I use the drill motors I have now or purchase some 12V motors from Lynx? If I order some of the 12V motors the chassis won’t be nearly as wide. I do like the fact the drill motors have decent speed and a lot of torque.
http://i172.photobucket.com/albums/w6/jbflix/DSC04812.jpg
Its looking good man 
keep it up
just some advice, this is obsolete advice if you dont likw the chassis width for pureley astethic reasons, but the wider the chassis is, the easier it will turn, so it will give you quite an advangtage, however if this if going into conficed areas you might wantto go with the narrower chassis
If the drill motors work then use them.
And I think that is a decent width for your rover. It will make skid steering less of an effort for the motors with a wider footprint.
Edit: LOL, Chunga beat me to it.
Both of you beat me to it! And yes, I agree with Evo, if the drill motors work use them! These awsome tracks need some power! Love the way the tracks curve up in the front! SWEET! 8)
