Featherweight Discs

[ewan]

Featherweight Discs

Its not a bandsaw its a scroll saw...
Anyway, Ive fitted a better 2.2mm titanium scoop at the back of the robot, which extends 30cm beyond the back of the bot, I might take on venom and Tantrum afterall. (but still, even at 1/16 power, I do think tantrum- with the weapon- should NOT be allowed in an arena without a roof, even though its horizontal, shrapnel could still go upwards...)
Cheers, Ewan
P.S. The bot is now fully clad in my sponsors logos (http://www.batteryworld.co.ukwww.batteryworld.co.uk) and for the logos sake, the name has gone back to Micro-Maul

[geoff]

Featherweight Discs

Ewan....Remember what we agreed...never mind the Ti scoop and sponsors, what about those weapon mountings!!
Get your priorities right!!
Geoff.

[ewan]

Featherweight Discs

As I have said before, Im only kitting it out for RC wars right now, Ill kit it out for using the weapon (at the FW smash) after Rc wars...

[craig_anto]

Featherweight Discs

tools dont makethe robot the roboteer does

TX-108 Gianto V1 Gianto v2 Tanto 1 and my previous 3 heavyweights were made with a jig saw a hand drill and file and pretty much nothing else and all of them capapble of taking there own strength and surive a full on attack from all sorts
youd really be amazed what you can achive when you put your mind too it
Recently I got a milling machine and lathe but I dont personally see them as essentials more of a luxury to me

that said I did have to get somethings done outside of my garage I think we all need some help sometimes

[jamesb]

Featherweight Discs

Tantrum wont be fightin at RCWars on Sunday Ewan, too busy with all the extra paperwork Ive been lumped with.

For the record by the way, as shaft sizes came up a few posts ago, Tantrum runs a 55mm thick aircraft ali shaft with 4mm titanium thrust retainer. This is in line with the expect 10% guideline on spinner supports from the FRA.

Though many current spinner come nowhere near this, I would not say that makes them unsafe.

Each robot is unique, and each solution should suit that robot. I would suggest for Ewan, as you are always trying to get so much energy in your spinners, that you have a primary support shaft of at least 10% of the disk diameter, this is to meet that expected guideline. If you had a 50mm shaft on you 500mm bar, and the motor shaft plugged in the other side, you would have pretty much the same setup as not, but its held on far better. Not too hard to do, wont compromise your robot either. If you did have this, even with a wooden chsssis Id be 90% sure of running you. Wood is underrated, remember, the Mosquito fighter bomber was wood!

spinners are a very tricky thing to convince people they are safe, if you want to make sure they minimize their critisism, maximize your mounting method.

If your robot is well built, and Im convinced the spinner will not seperate from the robot, its 90% there. The arena is more than capable of containing most spinner (featherweight) but one or two might be just the right size/shape to cause us problems.

As to the roof, again, dont make so much of it, its very close to the top of the arena, as due to feedback from the roboteers, there is now no gap. We can run verticals.

[ewan]

Featherweight Discs

Oh, can you (run vertical spinners), Ill be running it then... The mounting has now been strengthened with an solid 8mm shaft on the other side of the motor shaft (8mm as-well). This is enough as it is supported on both sides and because the spinner doesnt have THAT much energy.
Even if the WHOLE weapon assembly came off (I bet all of you a tenner that it wont ), I dont think it would cause a serious threat to the arena or anyone around.

[ewan]

Featherweight Discs

Ive had to step the weapon down to 14.4v for this event, for complicated reasons. Also, who is going to this event (inc spectators?).
(list of robots is as follows)-

Micro-Maul 2
G3
Alpha
Rampage
Thuggernaught
Trilibium
Flip!
Venom
Ploughbot
Kenny
Cheers, Ewan
P.S. Cheers, Ewan is not a robot

[blazerbotics]

Featherweight Discs

jonno, stu, dave moulds (turbine) and ed are coming without robots.

[ewan]

Featherweight Discs

Which Ed would that be?

[Mouldy]

Featherweight Discs

The storm 2 guy. Sheeesh this little venue is gona be so crammed full of people....glad im only bringing an ant I think Craig danby Is also coming over.

regards
Dave moulds
Team Turbine/PLF

[Mouldy]

Featherweight Discs

P.S
I belive Kenny has had to pull out, and to all the people asking me why isnt turbine going? basicaly because the chassi is all screwed up and is being re-built atm.

[blazerbotics]

Featherweight Discs

kenny is not bringing a robot but coming to watch.

[ewan]

Featherweight Discs

RC wars went Great guys, well done. The Weapon of Micro-Maul Didnt break off but now lots of upgrading is required for march, a new Micro-Maul will be out for the FW smash in March.
Cheers, Ewan

[s8nsmum]

Featherweight Discs

just to revive this thread a bit, i have heard talk about a max rpm rule being introduced, could someone clarify if this is going ahead or not and if it will apply to featherweights. I only ask as my new bot will have a very light but fast (6000rpm) disc.

Joe Townsend

Team Cut Corners

[stu]

Featherweight Discs

The FRA is proposing a 3 Stage rule about Spinners which effects all weight classes. Although this does not LIMIT the spinners, it just means the robot will need to be subject for REVIEW to see if it is safe enough to run at an event.

Quoted from the FRA Rules :-

Weapons that exceeding any TWO of the three limits must be subject for review -

Spinning element is more than 20% of the robots total weight.
Spins above 500rpm
Spinning element is greater than 24 Inches in diameter.
----
So its not really a max speed or rpm, or weight or energy rule, its more of a safety rule to be honest.

Mr Stu
FRA FeatherWeight Rep