New FW database (new robots)

[teamshock]

This sounds like an interesting challenge!!

Since my exams finish next week that should leave plenty of time to get Whirlwind up and running so I can have a go at getting Seraphim OOTA

Anyway here are the stats for Whirlwind

Weight ~13.6kg
Length ~40cm
Width ~50cm
Height ~ 20cm
Weapon- FP Flipper with a 60mm bore, 80mm Stroke ram fired by a burket with a 9oz painball bottle for the buffer tank.
Drive: 2x 50:1 MFA motors running at 24v with 80mm diameter wheels
Speedo: Scorpion XL
Batteries: 3700mAh 24v Ni-Mh
Radio- DX6i with AR500 rx
Armour- 3mm Aluminium frame with 10mm Nylon/HDPE base with 5mm Welded HDPE armour
Notes: Should be ready for RIAT

Also here is my brothers replacement for Shockwave

Name: Heatwave
Weight ~13.6kg
Weapon- FP flipper with a 45mm bore, 50mm stroke ram, fired by a burket with a buffer.
Drive: 2x 18v Drills running at 24v with 75mm wheels
Speedo: Scorpion XL
Batteries: 3700mAh 24v Ni-Mh
Radio: DX5e with BR6000 rx
Armour 5mm HDPE on 3mm Aluminium frame
Notes: Should be ready for Guildford

[Metal Demons]

May be subject to change - design is done, and a fair number of the parts have been acquired already though.

THE DESTROYING ANGEL:

Weight ~13.6kg
Length ~40cm
Width ~30cm
Height ~6cm
Weapon: ~4kg overhead horizontal spinning bar, powered by dual brushless outrunners through a spiral bevel gearbox. Torque limiter on the weapon shaft to remove some of the shock loading from the gears and motors.
Drive: Dual 550 motors through Banebots gearboxes.
ESC: Sabertooth
Radio: Spektrum dx5e
Batteries: 12x A123 cells (4 for drive, 8 for the weapon)
Armour: 3mm 6-4 Ti top and bottom, 10mm UHMWPE sides with hardox front wedge and 3.2mm hardox side plates. If I end up having the weight, I'll put a couple of mm of Ti on the rear.

Should be running in time for the tag champs

[dragonmaster_1]

DoubleDragon concept.[attachment=1:30j79ry3]assem1121.jpg[/attachment:30j79ry3]
[attachment=0:30j79ry3]assem1m1212m11m.jpg[/attachment:30j79ry3]

[dragonmaster_1]

Which should i build

[psycho_fling]

the second one looks slick and effective

but either would be great!!!!

[typhoon_driver]

They both look great. Now to answer your question,

In my opinion I would build neither.

Both of them look great but there are some problems in the design that will make them either less controllable or less destructive than they could be.

Concept 1 - The major problem I can see here is the ratio of the wheelbase, to the distance between the centre of the disc and the centre of the wheels. Basically I think you're wheels need to be wider apart or the bar has to be closer in to the machine. Otherwise you have a huge resistance when trying to turn the machine that will react in relatively poor maneuverability in the arena.

Concept 2 - If I understand the design correctly (and please correct me if I'm wrong) you have both a full bodied spinner with a bar spinner attached? If this is indeed the case then I would advise only going for one or the other. Machines with two weapons have rarely ever worked well. I can't think of any machines with two weapons that have gone especially far in any competitions (waits for a raft of examples). I would either build a full bodied spinner or build a bar spinner but not both. As I'm sure the big nipper guys will now confirm building a FBS is tricky at the best of times! If this concept is just a bar spinner on its own then I would suggest also increasing the wheelbase for improved maneuverability.

I have just read back over what I typed and I'm not going to lie, its to the point to say the least but please don't take offense. I know i'd rather have someones honest opinions and ideas on improvements than a dozen people telling me they are awesome.

[xtreme]

I like design 1. It looks more of a Tony Booth robot. With the time you put into the paint jobs it would look awsome. And with only 1 spinning bar you can have more power and weight behind it.

[leorcc]

I prefer the looks of 1, but 2 has better protection for its wheels.

[dragonmaster_1]

To Gary
When ever had controll of any of my spinners drive wise. :blush:
would just change it to a straight bar on version 1.
Version 2. The bar will spin in the opposite direction to the ring spinner. The bar will be belt driven the ring spinner will be friction driven both using brushless motors might take a bit will be costly.

[dragonmaster_1]

a few more designs to consider