How could I Improve pt 2

[team_orr]

How could I Improve pt 2

hi

for boxxs motors i will use 2 lem130s

and for batteries i will use a123s

jack

[leorcc]

How could I Improve pt 2

Jack, can you place your stats of Boxx again with all the changes please? It is getting confusing for us if you only post the changes. I think it is best if we focus on Boxx first and on Pic-Axe after we smooth Boxx out.


(Message edited by leorcc on August 18, 200

[team_orr]

How could I Improve pt 2

ok Leo
Name:Boxx
Shape:box
Dimensions:1m(L)0.6m(W)and 0.3m(H)
Number of wheels:4
Make of wheels:go-cart wheels
Drive:2 lem130s
Batteries:a123
Chassis:8mm titanium
Armor:7mm titanium wedge on the front, 5.5mm titanium on the back,10mm polycarb on the sides and 7mm titanium on the top
Weight:98kgs
Ground clearance:0mm on the front,2mm at the back+sides
Top speed:11mph
Strength:fast,good pushing power, invertable
Weakness:when flipped over it has a high ground clearance at the front

hows that???

jack

[alex_holt]

How could I Improve pt 2

Name:Boxx
Shape:box
Dimensions:1m(L)0.6m(W)and 0.3m(H)

Might do with being slightly wider, are you going for a tornado like scale?

Number of wheels:4
Make of wheels:go-cart wheels

This doesnt need to be two separate stats, just have Wheels: 4 x Go kart wheels

Drive:2 lem130s

At what voltage?

Batteries:a123

Youll want a quantity.
Chassis:8mm titanium
Armor:7mm titanium wedge on the front, 5.5mm titanium on the back,10mm polycarb on the sides and 7mm titanium on the top
Weight:98kgs
Ground clearance:0mm on the front,2mm at the back+sides
Top speed:11mph
Strength:fast,good pushing power, invertable
Weakness:when flipped over it has a high ground clearance at the front

You also dont have any weapons at all now, of course this is your choice and you dont have to, but even some small spikes will cause minor scatches which could tip a close judges decision in your favour.

[Guest]

How could I Improve pt 2

Jack, if you have a wedge at the front say in the shape:
Box wedge/Box with a wedge at the front

LEM-130s would work well at 36v and give you 18HP, also you could go a lot faster than 11mph with them

[team_orr]

How could I Improve pt 2

hi
1.yes i am looking to be about tornado size
2.the motors will be at 36v
3.i will have 3 a123s
4.i will also have a spike made out of 5mm mild steel either side of the wedge
jack

[leorcc]

How could I Improve pt 2

I agree with what Alex and Liam have said. I also would like to add:

36V on A123 is tricky since A123 cells do not work in increments of 12V as the other cells do (1 cell of A123 is 3.3V). The closest you get is 36.3V (11 cells). 6 packs of 11 cells weigh about 5kg including everything. That will be plenty for your robot.

10 mm polycarb is very weak for the sides. It is very lightweight, but vapourbot spinners punch through that like a fist through a sheet of wet newspaper.

I would suggest to make the whole robot Ti, so top, bottom, back, the lot. What thickness I leave up to you.

[Guest]

How could I Improve pt 2

Ive redone my original crusher robot, is it OK?

Robot Name: Sergeant Slaughter
Shape: An elongated pyramid with a very shallow front (like Gabriel II ) and a wedged rear that is angled at 42*
Weight: 100kg
Length: 90cm
Width: 85cm
Height: 20cm
Motivation: 2 x aluminium wheels with vulcanised foam-filled tyres, internally mounted at the rear. It also has a ball castor in the middle of the front point to aid mobility
Drive: 2 x S28-400 magmotors powered by 2 x NiCad battlepacks
Armour: 3.25mm hardox all over the top, 4mm aluminium on the base
Weaponry: A 2D Razer-style crushing beak made of titanium/vanadium alloy with a serrated underside. It is drilled with speed holes and actuated by an M-Mac M40 hydraulic actuator at 2500psi and 12v, this provides 14 tonnes of crushing force
Speed: 15mph
Ground Clearance: 0 at the front, 8mm at sides and rear
Turning Circle: 0
Srimech: On the sides of the crusher there are two Razer-style wings that operate via steel cables joined to the crusher, should right the robot in about 1.5 seconds
Colour: Gold with a red crusher and sapphire self-righting wings
Strengths: Powerful weapon
Weaknesses: Comparatively slow self-righting, ground clearance

[alex_holt]

How could I Improve pt 2

Not quite thaty easily Leo, besides, you dont get explosions of sharp shards from a wet newspaper lol.

Anyway, Jack: Your armour distribution is still rather odd. Remember, the top is probably where you need least armour, because you only have to worry about axes and crushers really. The back is second least, front is most and sides second most.

Id personally go with something like...
Front: 7mm titanium
Top: 30mm polycarb
Back/sides: 5mm titaniumm

Can I also add suggest, mention the wedge in the shape too because itll get missed where it is.

For the spikes you probably want just a solid spike of whatever material, unless you mean a rolled spike? (eg like rolling up a sheet of paper into a spike, but with metal?)

[team_britespark]

How could I Improve pt 2

quote:

Weaponry: A 2D Razer-style crushing beak made of titanium/vanadium alloy with a serrated underside. It is drilled with speed holes and actuated by an M-Mac M40 hydraulic actuator at 2500psi and 12v, this provides 14 tonnes of crushing force

Good luck with that, AJ will be beheading you before you know it.

[leorcc]

How could I Improve pt 2

The M40 cannot supply 14 tonnes of force on 2500PSI anyway. the bore of that ram is 40mm so at 172Bar (2500psi) gives 21893.30214 Newtons of force. Thats about 2234 kg or 2.23 Tonnes of force. To achieve 14 tonnes of force on a 40mm bore ram you would need 16170 PSI of pressure.

http://www.pneumaticsonline.com/Calc5.asphttp://www.pneumaticsonline.com/Calc5.asp

(Message edited by leorcc on August 18, 200

[Guest]

How could I Improve pt 2



Robot Name: Sergeant Slaughter
Shape: An elongated pyramid with a very shallow front (like Gabriel II ) and a wedged rear that is angled at 42*
Weight: 100kg
Length: 90cm
Width: 85cm
Height: 20cm
Motivation: 2 x aluminium wheels with vulcanised foam-filled tyres, internally mounted at the rear. It also has a ball castor in the middle of the front point to aid mobility
Drive: 2 x S28-400 magmotors powered by 2 x NiCad battlepacks
Armour: 3.25mm hardox all over the top, 4mm aluminium on the base
Weaponry: A 2D Razer-style crushing beak made of titanium/vanadium alloy with a serrated underside. It is drilled with speed holes and powered by hydraulics from a vivoil pump at 3000psi to give 9 tonnes of pressure at the ram and 4.5 at the tip
Speed: 15mph
Ground Clearance: 0 at the front, 8mm at sides and rear
Turning Circle: 0
Srimech: On the sides of the crusher there are two Razer-style wings that operate via steel cables joined to the crusher, should right the robot in about 1.5 seconds
Colour: Gold with a red crusher and sapphire self-righting wings
Strengths: Powerful weapon
Weaknesses: Comparatively slow self-righting, ground clearance

[leorcc]

How could I Improve pt 2

A couple of questions:

What do you mean with a 2D Razer-style crushing beak? As in flat?
What powers the pump?

[Guest]

How could I Improve pt 2

What I mean by 2D is kind of like Tiberius (do you know what I mean?).

As for what powers the pump, I dont know what you mean

[leorcc]

How could I Improve pt 2

I wouldnt exactly call the beak of Tiberius 2D. What would be 3D then?

Last time I checked Vivoil or any other pump for that matter need a motor to work them, unless you have very well trained squirrels.

In any case, 2 battery packs would not be sufficient to run 2 S28-400s and the motor for the pump.