Bitza Mk2

Finally started to get some work done on Bitza 2! Unfortunately (fortunately?) Dan is off to Uni in a couple of days so this'll be it in progress for a while.

Axle and Drum Shaft fitted. Wheels and teeth just resting in place:

http://i1228.photobucket.com/albums/...ssemblyTri.jpg
http://i1228.photobucket.com/albums/...embledSide.jpg
http://i1228.photobucket.com/albums/...sembledTop.jpg

The side frames:

http://i1228.photobucket.com/albums/.../SideFrame.jpg

And a component mock up:

http://i1228.photobucket.com/albums/...components.jpg

We've gone for the exoskeleton design again since it proved so strong at the UK Champs 2011.

Looks evil! :shock:

Seriously looking awesome. I'd love it if you guys didn't paint it and make it pretty. Leave it as is + armour etc, and rename it Scrap-daddy or The Devil Himself or something! People are always making their bots look mean by putting flames and what have you on them. This thing already looks far more terrifying than any skull-covered machine. :twisted:

cool! what are the teeth on the drum made from?

Oh don't worry we're not making it look nice. We want it to look like a scrap yard came to life. The scoop (not on yet) is some rusted metal, so it's going to look really rustic come the end.

We don't really know what the teeth are, but they are some sort of steel with what I assume a tool steel on the tips (which are seriously sharp). Dan picked them up at a car boot for 50p!

nice, i'm sure i've seen them on something i just can't remember what

Apparently they are something to do with working wood? I don't know what, unless you has some wood you needed destroyed!

Looking good, what motors are you planning on using?

Mabuchi RS-775WC-9013, 300w watts apparently...

Got them from a couple of Dewalt drills Dan bought for 50p........ again!

Be able to do a bit more since Dan has been back for a couple of days. Finished up the frame and then parked Dan's 4x4 on it to see how strong it is/ straighten it up (photos to come soon) and then spent a long time scratching our heads about how on earth we would mount stuff inside. Eventually we came up with a neat solution for the fan motor but the rest is a mystery.
Also fired up the motor (since it came from a written off car) and it sounded terrible! I later found an M5 bolt stuck to the windings, so took that out!

http://i1228.photobucket.com/albums/...motormount.jpg
http://i1228.photobucket.com/albums/...otormount2.jpg
http://i1228.photobucket.com/albums/...motormount.jpg
http://i1228.photobucket.com/albums/...otormount2.jpg

Also fired up Spinza today, but that ended with the blade spinning so ferociously that the wheels fell off and it snapped the timing belt turning the blade. Made a nice circle cut in the wood though...

And the car photos as promised.

Completed Frame:
http://i1228.photobucket.com/albums/...pleteFrame.jpg

Car on Frame:
http://i1228.photobucket.com/albums/...CaronBitza.jpg

And here is Spinza after it shook it's wheels off:
http://i1228.photobucket.com/albums/...aAfterTest.jpg