Team Imperial build diary

Hopefully getting Stack Error 2 milled today so it can be built in time for Reading.

Also, stuck a screw in the front of Stack Error so it can self right and improved grip by replacing the foam on the wheels with rubber bands.

Have you got any pictures of the current Stack Error? I've heard a bit about it but not actually seen it.

[attachment=0:23zk00qa]P1030296.JPG[/attachment:23zk00qa]

The improved version that can self right.

Good news and bad news.
My 5A sabertooth has died with 1A :sad: But I have bought some drills to try and build a featherweight and was given two cheap rc cars to be hacked into something fun for the 2' 6 by 3' arena that I built.

However, I'm still pondering whether to buy a couple of ikea sack trucks for a pair of wheels and some metal tubing.

Some pictures of the arena will be posted later when I find a camera and get off of the apple tv (massive pain in the backside to type quickly on).

Free formed some h bridges out of what I hope are all NPN transistors for use in some rc hackbots for my cousins amusment and to see how easy it is to do for a potential antweight ¼ber flipper.

Now some pictures:
My arena
Arena underside
Cardboard robots
The cardbots chassis
Rumble robots base
Mini H-bridge top
Mini H-bridge bottom
The featherweight I'm building
The featherweight I would build if I can put 6 drills in a feather :proud:

The arena, frame and wheels are all from Ikea.

the arena come flat pack? :P

Very smart idea, using a ikea trolley :P
May I ask how did you fix the wheels to the drill motors? Do they just screw on?

@Connor: Yep, they screw straight on and are pretty secure. Although a narrow enough pair of pliers or mole grips (locking pliers) allows you to screw the wheel all the way on instead of only 1/3 on. You also get 6 or 7 feet of pre bent metal tubing that an Aussie could easily turn into a robot :P

Unfortunately, invertability is more difficult with these wheels because they are 75mm max and I will probably have to make them flat instead of curved for more grip making them closer to 70mm.

If you can live with that then its a pretty good deal for 2 wheels and a fair bit of tubing for £9.

@Calum: Yes actually, the arena was originally an under bed storage box for my parents room but it didn't fit even after my dad cut it down. So I turned it into an antweight size arena.

Screw straight on and the makings of a featherweight body all for £9? Bargain.
Where do you buy them from though? My nearest Ikea is still a drive away and I cant be bothered to go and borrow one unless I really need to :P

Unfortunately they aren't avaliable for sale online so it's off to Ikea.

They wont miss one trolley.
Or two.

They aren't for use around the store, they are for sale somewhere around the end of the shop.

Tower Pro MG90S 360 mod

what are those awsome card bots???? what car is the chassis? i might make one! :proud:

They're nothing special, just cheap rc cars with some plastic bolted on and the cardboard shell taped to the plastic so they're interchangeable.

For scale they're about 5 inches long and a bit narrower.

A bit difficult to drive as their turning circle is nearly the size of the arena so a smaller rc car may be in order.

Thanks for the tutorial, Jordan.
I will go with the 2x2.2k resistors
Does the servo shaft wooble because of the removed plastic piece?
In the russian tutorial the guy bends the pot limiters so it spins freely, and only removes the rotation stop of the plastic piece, keeping the center piece in the shaft.
I might go for a mix of the 2 tutorials, but i will analyze the sitiation better when i get my servos.